Satellite communications lrg
•Download as PPT, PDF•
4 likes•1,089 views
Inmarsat provides satellite communication services for ships involved in distress cases through its space segment and terminals installed on vessels. Ships fitted with Inmarsat terminals can originate and receive communications to coordinate rescue efforts with other vessels and rescue coordination centers. The Inmarsat system also includes an Enhanced Group Calling system to send operational updates and an Inmarsat-E satellite emergency position indicating radio beacon service that will automatically transmit a distress signal and location if a ship sinks.
Report
Share
Report
Share
Recommended
Terrestrial communications lrg
HF provides long-range communication capabilities for ship-to-shore and shore-to-ship use as an alternative to satellite communication outside Inmarsat coverage areas. MF frequencies between 2-4 MHz provide medium-range service for distress communication, while VHF uses 156.525 MHz and 156.8 MHz for short-range distress communication.
Maritime Telecommunication
Ship owners, managers, officers and crew need cost-effective communications that are simple to operate, easy to maintain and operate seamlessly around the world. That’s what Singtel Office At Sea offer. Our services and technology can bridge Inmarsat, Iridium, VSAT, WiFi and mobile access automatically to provide voice, Internet, email and high-value applications from weather data to ship management tools wherever the vessel travels.
Gmdss lrg
The Global Maritime Distress and Safety System (GMDSS) provides distress alerting and search and rescue coordination for ships via satellite and terrestrial radio communications. It applies to commercial ships over 300 tons and passenger ships engaged in international voyages. By 1999, all covered ships were required to carry radio equipment determined by their area of operation, including VHF, MF, HF, and satellite phones. Coastal nations must also provide shore-based infrastructure like radio stations and rescue coordination centers to support GMDSS. NAVTEX broadcasts maritime safety information via radio telex to ships within 200 miles of coastal transmitters.
GMDSS
The Global Maritime Distress and Safety System (GMDSS) automates distress alerting and provides for improved safety communications at sea. Under GMDSS, search and rescue authorities and nearby ships will be rapidly alerted to a ship in distress through shore-based coordination. GMDSS also transmits maritime safety information. Ships are equipped according to the communication capabilities required for the area in which they operate, divided into Sea Areas 1 through 4 with varying coverage ranges. GMDSS aims to speed rescue responses and improve safety of ships and their crews over previous manual systems.
Gmdssqp
The document provides questions and answers related to fundamental concepts, equipment systems, sea areas, functional requirements, equipment carriage requirements, maintenance options, and radio spectrum topics for the GMDSS. It tests knowledge of key concepts like the purpose of GMDSS being to automate and improve emergency communications for shipping. It also covers the various equipment, areas of operation, functions, carriage rules, and maintenance provisions required by GMDSS.
Gmdss guide
The document provides information about the Global Maritime Distress and Safety System (GMDSS). It defines the four sea areas covered by GMDSS and outlines the key communications equipment required for each area. Furuno is recommended as a provider of GMDSS-compliant electronics, including VHF radios, MF/HF radios, Navtex receivers, and Inmarsat terminals. Furuno also offers complete GMDSS console packages and worldwide service support.
Cospas day 12
The COSPAS-SARSAT system is an international satellite-based search and rescue system that has helped save over 20,000 lives since 1982. It detects and locates transmissions from emergency beacons on ships, aircraft, and worn by individuals. The system is composed of distress radiobeacons, satellites equipped to detect beacon signals, ground receiving stations, and mission control centers that forward alerts to rescue authorities. It operates using both low Earth orbit and geostationary satellites to provide global coverage and allow for location of distress signals.
Dscday 11
Digital selective calling (DSC) allows vessels and shore stations to automatically contact each other using digital radio signals. It is a core component of the Global Maritime Distress and Safety System (GMDSS). DSC signals include the vessel's unique Maritime Mobile Service Identity (MMSI) number and GPS coordinates, allowing for quick distress alerts. DSC is used for distress signaling as well as routine hailing on dedicated VHF, MF, and HF radio frequencies based on the vessel's location and bandwidth capabilities. DSC alerts are classified from highest to lowest priority as distress, urgency, safety, and routine.
Recommended
Terrestrial communications lrg
HF provides long-range communication capabilities for ship-to-shore and shore-to-ship use as an alternative to satellite communication outside Inmarsat coverage areas. MF frequencies between 2-4 MHz provide medium-range service for distress communication, while VHF uses 156.525 MHz and 156.8 MHz for short-range distress communication.
Maritime Telecommunication
Ship owners, managers, officers and crew need cost-effective communications that are simple to operate, easy to maintain and operate seamlessly around the world. That’s what Singtel Office At Sea offer. Our services and technology can bridge Inmarsat, Iridium, VSAT, WiFi and mobile access automatically to provide voice, Internet, email and high-value applications from weather data to ship management tools wherever the vessel travels.
Gmdss lrg
The Global Maritime Distress and Safety System (GMDSS) provides distress alerting and search and rescue coordination for ships via satellite and terrestrial radio communications. It applies to commercial ships over 300 tons and passenger ships engaged in international voyages. By 1999, all covered ships were required to carry radio equipment determined by their area of operation, including VHF, MF, HF, and satellite phones. Coastal nations must also provide shore-based infrastructure like radio stations and rescue coordination centers to support GMDSS. NAVTEX broadcasts maritime safety information via radio telex to ships within 200 miles of coastal transmitters.
GMDSS
The Global Maritime Distress and Safety System (GMDSS) automates distress alerting and provides for improved safety communications at sea. Under GMDSS, search and rescue authorities and nearby ships will be rapidly alerted to a ship in distress through shore-based coordination. GMDSS also transmits maritime safety information. Ships are equipped according to the communication capabilities required for the area in which they operate, divided into Sea Areas 1 through 4 with varying coverage ranges. GMDSS aims to speed rescue responses and improve safety of ships and their crews over previous manual systems.
Gmdssqp
The document provides questions and answers related to fundamental concepts, equipment systems, sea areas, functional requirements, equipment carriage requirements, maintenance options, and radio spectrum topics for the GMDSS. It tests knowledge of key concepts like the purpose of GMDSS being to automate and improve emergency communications for shipping. It also covers the various equipment, areas of operation, functions, carriage rules, and maintenance provisions required by GMDSS.
Gmdss guide
The document provides information about the Global Maritime Distress and Safety System (GMDSS). It defines the four sea areas covered by GMDSS and outlines the key communications equipment required for each area. Furuno is recommended as a provider of GMDSS-compliant electronics, including VHF radios, MF/HF radios, Navtex receivers, and Inmarsat terminals. Furuno also offers complete GMDSS console packages and worldwide service support.
Cospas day 12
The COSPAS-SARSAT system is an international satellite-based search and rescue system that has helped save over 20,000 lives since 1982. It detects and locates transmissions from emergency beacons on ships, aircraft, and worn by individuals. The system is composed of distress radiobeacons, satellites equipped to detect beacon signals, ground receiving stations, and mission control centers that forward alerts to rescue authorities. It operates using both low Earth orbit and geostationary satellites to provide global coverage and allow for location of distress signals.
Dscday 11
Digital selective calling (DSC) allows vessels and shore stations to automatically contact each other using digital radio signals. It is a core component of the Global Maritime Distress and Safety System (GMDSS). DSC signals include the vessel's unique Maritime Mobile Service Identity (MMSI) number and GPS coordinates, allowing for quick distress alerts. DSC is used for distress signaling as well as routine hailing on dedicated VHF, MF, and HF radio frequencies based on the vessel's location and bandwidth capabilities. DSC alerts are classified from highest to lowest priority as distress, urgency, safety, and routine.
2010fall ch19 otgonbayar
This document summarizes key aspects of satellite communications technology. It describes transponders that relay signals between satellites and Earth, how satellites control their orientation, and how they are powered by solar cells. It discusses low Earth orbiting satellites and very small aperture terminals that allow communication across wide areas. The document outlines domestic, regional, and international satellite types and some advantages of satellite circuits like independent coverage over distance.
Epirb and sart lrg
The document discusses emergency position indicating radio beacons (EPIRBs) and search and radar transponders (SARTs) that are used in search and rescue operations. It describes how 406 MHz satellite EPIRBs transmit a radio signal every 50 seconds that includes a digitally encoded message with information to help locate the vessel in distress. SARTs generate a response signal when interrogated by ship or aircraft radar to help rescuers locate survivors in the water even in poor visibility. The document outlines key performance parameters for EPIRBs such as detection probability, location accuracy, ambiguity resolution, system capacity, coverage area, and notification times.
TRAINING SIMULATORS(1)
This document discusses various types of maritime training simulators including GMDSS simulators, ECDIS training simulators, OOW bridge simulators, radar-ARPA and navigation simulators, visual steering simulators, and engine room simulators. These simulators are approved by classification societies like DNV and DGS and are used by many maritime training institutions in India to provide hands-on training to cadets. The document lists specific equipment and features of the different simulators.
DSS
The document discusses the history and technology of digital satellite systems. It describes how DirectTV first launched in 1994 using the Thomson DSS system before DVB-S was standardized. DSS was functionally similar to DVB-S but used different information tables and transport streams. The document also outlines the basic components and positioning of communication satellites, frequency bands used, and compression standards involved in transmitting satellite television and radio signals.
3 g frequencies
This document discusses 3G frequencies allocated for IMT-2000 and UMTS. It states that the 1885-2025 MHz and 2110-2200 MHz bands are intended for worldwide IMT-2000 use. For UMTS, the 1920-1980 MHz and 2110-2170 MHz bands are used for paired FDD, while 1900-1920 MHz and 2010-2025 MHz are used for unpaired TDD. Satellite bands are 1980-2010 MHz and 2170-2200 MHz. Carrier frequencies are designated by UARFCN, which is calculated by multiplying the frequency in MHz by 5. International conferences identified additional bands for IMT-2000 use between 1710-2690 MHz.
68898351 imo-performance-standards-for-echo-sounder
This document outlines the performance standards for echo-sounding equipment set by the International Maritime Organization (IMO). The equipment is intended to provide reliable depth readings between 2-200 meters to aid navigation, especially in shallow waters. It must have at least two depth ranges (20m and 200m scales), record soundings for 15 minutes, and be able to record depth and time for 12 hours. The display must show depth marks no more than 1/10 the range and time marks at most every 5 minutes. Alarms are required for shallow water and any failure affecting safe operation.
VSAT Technology
VSAT (Very Small Aperture Terminal) technology allows for wireless communication via satellite using small dish antennas. A VSAT network consists of a central hub with a large antenna that communicates with multiple remote VSAT sites. The hub controls and monitors the network, sending data to the satellite which amplifies and redirects the signals to the VSATs. VSAT offers advantages like flexibility, lower installation costs than terrestrial networks, and ability to access areas without terrestrial infrastructure. Common applications of VSAT include corporate networks, internet access, distance education, and retail/banking networks. VSAT uses multiple access techniques like TDMA to allow efficient sharing of satellite bandwidth among sites.
Painel 3 5-g_hz-paulo_ricardo
The document discusses the need to revise regulations for the use of the 3.5 GHz band in Brazil. It summarizes the interactions with ANATEL (Brazil's telecom regulator) on this issue. Studies and testimonies unanimously showed the serious interference to TVRO systems from WiMax networks operating at the current power limit of 2W. The ITU's Report S.2199 and Recommendation S.1856 provide methodologies for calculating coordination zones around satellite earth stations to prevent interference from terrestrial services. Brazil submitted a contribution to WP 5D recognizing problems occur even at 2W power, and that solutions like increased attenuation may be needed to allow coexistence between IMT systems and FSS, given ubiquitous deployment of TV
LEOSAR and LEOSAT
Marine communication refers to information exchange between vessels at sea or between vessels and coastal authorities. Historically, flags and Morse code were used, but radio technology now dominates. VHF radio is widely used for ship-to-ship and ship-to-shore communication. Distress signals can activate search and rescue operations coordinated by organizations like INMARSAT and COSPAS-SARSAT using satellites. EPIRBs automatically transmit distress signals via satellite, providing location data using Doppler shift measurement which is relayed to rescue coordination centers. The GMDSS system divides ocean areas into categories to coordinate appropriate emergency communication equipment depending on distance from shore.
INTRODUCING NIGCOMSAT 1-R 3
Nigcomsat-1R is Nigeria's replacement communications satellite, launched in 2011. It is a quad-band satellite located at 42.5 degrees east with 28 transponders and a lifespan of at least 15 years. Its footprint covers West, East, and Southern Africa, Europe, and Asia. It provides telecommunications services through C-band, Ku-band, Ka-band, and L-band payloads and is controlled through ground stations in Abuja, Nigeria and Kashi, China.
VHF Communication Basics Part 3
VHF radio uses frequencies between 30-300 MHz for applications like radio, TV, and two-way communications over short distances. The document discusses VHF propagation characteristics and antennas before introducing the Icom VHF 5061 radio. It has modes for selective calling, emergency calls and ID transmission. Features include detachable front panel, wide frequency range, voice scrambler and enhanced scanning abilities. The radio is suitable for ground-to-air, public safety and business communications.
69116612 imo-ps-s-vdr
1. The purpose of a simplified voyage data recorder (S-VDR) is to securely store information about a vessel's position, movement, status, and command in the event of an incident for use in subsequent investigations.
2. Ships defined in SOLAS Chapter V must be fitted with an S-VDR that continuously records preselected data items relating to ship status, equipment output, and command/control. The data must be time-correlated and stored in a tamper-proof capsule for at least 2 years.
3. An S-VDR must record data items including date, time, position, speed, heading, bridge audio, communications audio, radar data, and AIS data
Satellite communication bani
This document provides an overview of satellite communications. It discusses how satellites serve as radio relay stations in space to allow point-to-point communication even in remote locations. Some key events in the history of satellite communication are noted, such as the launch of Early Bird in 1965, which was the first commercial satellite. The basic elements of a satellite communication system, including the satellite in space and ground stations, are described. Various uses of satellite communication are then outlined, such as traditional telecommunications, cellular networks, television broadcasting, and applications for maritime, air, and land mobile communication.
HF Communication Basics Part 2
This chapter will introduce the HF Radio Communication basic and the Vertex Standard 1700 HF Radio Aid.
Gsm basics
The document provides an overview of cellular communications and GSM networks. It discusses the need for cellular networks due to limitations of fixed line phones, introduces concepts like frequency reuse and channelization, and describes the components and architecture of GSM networks including mobile stations, base station controllers, switches and databases. It also summarizes the evolution of GSM standards and technology.
Bayliss Demonstration Slideshow No2
Demonstration Slideshow - Marine Radio Operators VHF Certificate Course Slides (ACCSS [Australian Coastal Communication Sub-System] of the GMDSS [Global Maritime Distress and Safety System]). To be used in conjunction with the Australian Marine-Radio-Operators-Handbook 2008 edn.
Very small aperture terminal(vsat)
VSAT is a satellite communication system that uses small antennas, typically 1-3 meters in diameter, to connect to satellites. It has two main components: an outdoor unit including the antenna and radio equipment, and an indoor unit that interfaces with user equipment. VSAT networks consist of a central hub station, geostationary satellite, and multiple remote VSAT terminals. The hub station manages the network and transmits data to the satellite at high speeds, which then broadcasts the signals to the remote VSATs. VSAT networks provide cost-effective, flexible connectivity and can support voice, video, and data transmission for applications like credit verification, stock control, and video conferencing.
The sky lrg
The document discusses concepts related to observing the night sky, including:
- The celestial sphere represents the sky as a hollow dome centered on Earth. Key points are the zenith overhead and horizon.
- The altitude is a star's height above the horizon, and azimuth is its direction from true north.
- The celestial sphere model orients observations using the north and south celestial poles and celestial equator analogously to Earth's geographic coordinates.
Digital selective calling lrg
Digital Selective Calling (DSC) is used to transmit distress alerts from ships and acknowledgements from coast stations, as well as for other safety calls. DSC uses error detection coding and transmits information such as the vessel's identity and type of call. DSC calls can be distress, safety, or commercial. Receiving stations display the call details and provide alarms for distress or safety calls. DSC operates at different speeds and frequencies depending on the band, and repeats distress calls to increase the chances of detection.
Final Lecture Enav211
The GPS system employs 24 satellites in medium Earth orbit that continuously broadcast precise time and location data. Receivers on the ground use this signal data from multiple satellites to calculate the user's precise 3D position via triangulation. The system provides two levels of service - a free civilian Standard Positioning Service and a more accurate Precise Positioning Service available to military and authorized users. It consists of space, ground control, and user segments to maintain the satellite constellation and provide positioning to users globally.
Rotr 2 lrg
This document summarizes key points from the Collision Regulations (Rules of the Road). It outlines the structure of the rules, which are divided into parts covering general rules, steering/sailing rules, lights and shapes, and sound signals. It then provides more detailed summaries and explanations of several specific rules, including rules around lookout, safe speed, not impeding other vessels, narrow channels, traffic separation schemes, crossing situations, responsibilities of sailing vessels and fishing vessels, and departures from the rules in hazardous situations. The document emphasizes proper understanding and compliance with the rules to avoid collisions at sea.
Astronomical Coordinate System
This document describes different astronomical coordinate systems used to determine the position and motion of objects in the sky, including the terrestrial coordinate system based on the horizon, the equatorial coordinate system based on the celestial equator and equinoxes, and the formulas to transform between the two systems accounting for an observer's latitude and the Earth's rotation.
More Related Content
What's hot
2010fall ch19 otgonbayar
This document summarizes key aspects of satellite communications technology. It describes transponders that relay signals between satellites and Earth, how satellites control their orientation, and how they are powered by solar cells. It discusses low Earth orbiting satellites and very small aperture terminals that allow communication across wide areas. The document outlines domestic, regional, and international satellite types and some advantages of satellite circuits like independent coverage over distance.
Epirb and sart lrg
The document discusses emergency position indicating radio beacons (EPIRBs) and search and radar transponders (SARTs) that are used in search and rescue operations. It describes how 406 MHz satellite EPIRBs transmit a radio signal every 50 seconds that includes a digitally encoded message with information to help locate the vessel in distress. SARTs generate a response signal when interrogated by ship or aircraft radar to help rescuers locate survivors in the water even in poor visibility. The document outlines key performance parameters for EPIRBs such as detection probability, location accuracy, ambiguity resolution, system capacity, coverage area, and notification times.
TRAINING SIMULATORS(1)
This document discusses various types of maritime training simulators including GMDSS simulators, ECDIS training simulators, OOW bridge simulators, radar-ARPA and navigation simulators, visual steering simulators, and engine room simulators. These simulators are approved by classification societies like DNV and DGS and are used by many maritime training institutions in India to provide hands-on training to cadets. The document lists specific equipment and features of the different simulators.
DSS
The document discusses the history and technology of digital satellite systems. It describes how DirectTV first launched in 1994 using the Thomson DSS system before DVB-S was standardized. DSS was functionally similar to DVB-S but used different information tables and transport streams. The document also outlines the basic components and positioning of communication satellites, frequency bands used, and compression standards involved in transmitting satellite television and radio signals.
3 g frequencies
This document discusses 3G frequencies allocated for IMT-2000 and UMTS. It states that the 1885-2025 MHz and 2110-2200 MHz bands are intended for worldwide IMT-2000 use. For UMTS, the 1920-1980 MHz and 2110-2170 MHz bands are used for paired FDD, while 1900-1920 MHz and 2010-2025 MHz are used for unpaired TDD. Satellite bands are 1980-2010 MHz and 2170-2200 MHz. Carrier frequencies are designated by UARFCN, which is calculated by multiplying the frequency in MHz by 5. International conferences identified additional bands for IMT-2000 use between 1710-2690 MHz.
68898351 imo-performance-standards-for-echo-sounder
This document outlines the performance standards for echo-sounding equipment set by the International Maritime Organization (IMO). The equipment is intended to provide reliable depth readings between 2-200 meters to aid navigation, especially in shallow waters. It must have at least two depth ranges (20m and 200m scales), record soundings for 15 minutes, and be able to record depth and time for 12 hours. The display must show depth marks no more than 1/10 the range and time marks at most every 5 minutes. Alarms are required for shallow water and any failure affecting safe operation.
VSAT Technology
VSAT (Very Small Aperture Terminal) technology allows for wireless communication via satellite using small dish antennas. A VSAT network consists of a central hub with a large antenna that communicates with multiple remote VSAT sites. The hub controls and monitors the network, sending data to the satellite which amplifies and redirects the signals to the VSATs. VSAT offers advantages like flexibility, lower installation costs than terrestrial networks, and ability to access areas without terrestrial infrastructure. Common applications of VSAT include corporate networks, internet access, distance education, and retail/banking networks. VSAT uses multiple access techniques like TDMA to allow efficient sharing of satellite bandwidth among sites.
Painel 3 5-g_hz-paulo_ricardo
The document discusses the need to revise regulations for the use of the 3.5 GHz band in Brazil. It summarizes the interactions with ANATEL (Brazil's telecom regulator) on this issue. Studies and testimonies unanimously showed the serious interference to TVRO systems from WiMax networks operating at the current power limit of 2W. The ITU's Report S.2199 and Recommendation S.1856 provide methodologies for calculating coordination zones around satellite earth stations to prevent interference from terrestrial services. Brazil submitted a contribution to WP 5D recognizing problems occur even at 2W power, and that solutions like increased attenuation may be needed to allow coexistence between IMT systems and FSS, given ubiquitous deployment of TV
LEOSAR and LEOSAT
Marine communication refers to information exchange between vessels at sea or between vessels and coastal authorities. Historically, flags and Morse code were used, but radio technology now dominates. VHF radio is widely used for ship-to-ship and ship-to-shore communication. Distress signals can activate search and rescue operations coordinated by organizations like INMARSAT and COSPAS-SARSAT using satellites. EPIRBs automatically transmit distress signals via satellite, providing location data using Doppler shift measurement which is relayed to rescue coordination centers. The GMDSS system divides ocean areas into categories to coordinate appropriate emergency communication equipment depending on distance from shore.
INTRODUCING NIGCOMSAT 1-R 3
Nigcomsat-1R is Nigeria's replacement communications satellite, launched in 2011. It is a quad-band satellite located at 42.5 degrees east with 28 transponders and a lifespan of at least 15 years. Its footprint covers West, East, and Southern Africa, Europe, and Asia. It provides telecommunications services through C-band, Ku-band, Ka-band, and L-band payloads and is controlled through ground stations in Abuja, Nigeria and Kashi, China.
VHF Communication Basics Part 3
VHF radio uses frequencies between 30-300 MHz for applications like radio, TV, and two-way communications over short distances. The document discusses VHF propagation characteristics and antennas before introducing the Icom VHF 5061 radio. It has modes for selective calling, emergency calls and ID transmission. Features include detachable front panel, wide frequency range, voice scrambler and enhanced scanning abilities. The radio is suitable for ground-to-air, public safety and business communications.
69116612 imo-ps-s-vdr
1. The purpose of a simplified voyage data recorder (S-VDR) is to securely store information about a vessel's position, movement, status, and command in the event of an incident for use in subsequent investigations.
2. Ships defined in SOLAS Chapter V must be fitted with an S-VDR that continuously records preselected data items relating to ship status, equipment output, and command/control. The data must be time-correlated and stored in a tamper-proof capsule for at least 2 years.
3. An S-VDR must record data items including date, time, position, speed, heading, bridge audio, communications audio, radar data, and AIS data
Satellite communication bani
This document provides an overview of satellite communications. It discusses how satellites serve as radio relay stations in space to allow point-to-point communication even in remote locations. Some key events in the history of satellite communication are noted, such as the launch of Early Bird in 1965, which was the first commercial satellite. The basic elements of a satellite communication system, including the satellite in space and ground stations, are described. Various uses of satellite communication are then outlined, such as traditional telecommunications, cellular networks, television broadcasting, and applications for maritime, air, and land mobile communication.
HF Communication Basics Part 2
This chapter will introduce the HF Radio Communication basic and the Vertex Standard 1700 HF Radio Aid.
Gsm basics
The document provides an overview of cellular communications and GSM networks. It discusses the need for cellular networks due to limitations of fixed line phones, introduces concepts like frequency reuse and channelization, and describes the components and architecture of GSM networks including mobile stations, base station controllers, switches and databases. It also summarizes the evolution of GSM standards and technology.
Bayliss Demonstration Slideshow No2
Demonstration Slideshow - Marine Radio Operators VHF Certificate Course Slides (ACCSS [Australian Coastal Communication Sub-System] of the GMDSS [Global Maritime Distress and Safety System]). To be used in conjunction with the Australian Marine-Radio-Operators-Handbook 2008 edn.
Very small aperture terminal(vsat)
VSAT is a satellite communication system that uses small antennas, typically 1-3 meters in diameter, to connect to satellites. It has two main components: an outdoor unit including the antenna and radio equipment, and an indoor unit that interfaces with user equipment. VSAT networks consist of a central hub station, geostationary satellite, and multiple remote VSAT terminals. The hub station manages the network and transmits data to the satellite at high speeds, which then broadcasts the signals to the remote VSATs. VSAT networks provide cost-effective, flexible connectivity and can support voice, video, and data transmission for applications like credit verification, stock control, and video conferencing.
What's hot (17)
68898351 imo-performance-standards-for-echo-sounder
68898351 imo-performance-standards-for-echo-sounder
Viewers also liked
The sky lrg
The document discusses concepts related to observing the night sky, including:
- The celestial sphere represents the sky as a hollow dome centered on Earth. Key points are the zenith overhead and horizon.
- The altitude is a star's height above the horizon, and azimuth is its direction from true north.
- The celestial sphere model orients observations using the north and south celestial poles and celestial equator analogously to Earth's geographic coordinates.
Digital selective calling lrg
Digital Selective Calling (DSC) is used to transmit distress alerts from ships and acknowledgements from coast stations, as well as for other safety calls. DSC uses error detection coding and transmits information such as the vessel's identity and type of call. DSC calls can be distress, safety, or commercial. Receiving stations display the call details and provide alarms for distress or safety calls. DSC operates at different speeds and frequencies depending on the band, and repeats distress calls to increase the chances of detection.
Final Lecture Enav211
The GPS system employs 24 satellites in medium Earth orbit that continuously broadcast precise time and location data. Receivers on the ground use this signal data from multiple satellites to calculate the user's precise 3D position via triangulation. The system provides two levels of service - a free civilian Standard Positioning Service and a more accurate Precise Positioning Service available to military and authorized users. It consists of space, ground control, and user segments to maintain the satellite constellation and provide positioning to users globally.
Rotr 2 lrg
This document summarizes key points from the Collision Regulations (Rules of the Road). It outlines the structure of the rules, which are divided into parts covering general rules, steering/sailing rules, lights and shapes, and sound signals. It then provides more detailed summaries and explanations of several specific rules, including rules around lookout, safe speed, not impeding other vessels, narrow channels, traffic separation schemes, crossing situations, responsibilities of sailing vessels and fishing vessels, and departures from the rules in hazardous situations. The document emphasizes proper understanding and compliance with the rules to avoid collisions at sea.
Astronomical Coordinate System
This document describes different astronomical coordinate systems used to determine the position and motion of objects in the sky, including the terrestrial coordinate system based on the horizon, the equatorial coordinate system based on the celestial equator and equinoxes, and the formulas to transform between the two systems accounting for an observer's latitude and the Earth's rotation.
Cadet passage planning lrg
This document provides information and guidelines for passage planning, including:
- References to consult such as nautical charts, publications on tides, currents and weather.
- Details to obtain for departure and arrival ports such as distances, tides, and recommendations.
- Factors to consider when choosing a route such as ETD, tides, weather, shipping traffic, and fuel consumption.
Stability lrg
The document discusses vessel stability, including:
- Initial stability refers to a vessel's stability from 0 to 7 degrees of heel. Overall stability is a general measure of a vessel's ability to resist capsizing.
- The center of buoyancy (B) is the point where the total buoyancy force acts. It shifts upwards as a vessel heels. The center of gravity (G) is the point where all weights are concentrated.
- The metacenter (M) is the intersection of the vertical line through B and the line of action of buoyancy as B shifts. As B moves up, M moves down. A higher metacenter means greater initial stability.
- Positive stability exists when
Charts and publications lrg
This document provides information about navigational charts and publications. It discusses different map projections used for charts, including Mercator, Transverse Mercator, and Gnomonic projections. It also covers topics like the requirements of a navigational chart, reliability of chart data based on survey dates, chart corrections via Notices to Mariners, and common navigational publications. The purpose is to outline key aspects for mariners to understand about charts and navigational resources.
Waves lrg
The document discusses waves and their behavior. It defines key terms like crest, trough, wavelength and period. It describes how waves form and the factors that influence their shape, such as fetch, depth, currents and seabed slope. It explains how waves change as they move from deep to shallow water, undergoing refraction and steepening. This can result in waves breaking near shore. It also discusses particle motion within waves and the different types of breaking waves.
Sound signalling devices lrg
This document outlines sound signal requirements and maneuvering signals for vessels of different sizes. It specifies that vessels 12 meters or more must carry a whistle and bell, vessels 100 meters or more must also carry a gong, and vessels under 12 meters must carry an efficient sound-making device. It describes signals for vessel maneuvers like altering course, operating astern propulsion, and overtaking. It also provides signals guidelines for restricted visibility, anchoring, being aground, and pilot vessels. Small vessels under 12 meters are exempt from some restricted visibility signals but must make sounds every 2 minutes.
Selection of stars lrg
This document provides guidance on identifying and selecting stars and planets for celestial navigation. It discusses using established star patterns to identify stars, and noting that planets are usually brighter but reference may be needed. Common star patterns like Ursa Major and Orion are shown. Using a star identifier and star globe is described, including calculating longitude of hour angle and determining predicted altitude and azimuth. Factors in selecting observable stars and planets are outlined, such as magnitude, altitude, and bearing.
Types of fog lrg
This document discusses different types of fog and their formation. It describes radiation fog, which forms at night from the cooling of land surfaces. It also discusses advection fog, which forms when moist air moves over a cooler surface, as well as upslope and valley fogs caused by air cooling as it rises over terrain. Several other fog types are mentioned, including frontal and precipitation fogs associated with rain. The document concludes with a short poem about fog by Carl Sandburg.
Ocean passage planning
This document provides guidance on planning ocean passages and includes details to consider such as publications to reference, tidal information, sunrise/sunset times, navigation methods, passage route planning, chart requirements, weather factors, ship traffic considerations, operational factors, international maritime regulations and signals to send for coordination and reporting. Planning involves determining estimated times of departure and arrival, tidal conditions, fuel requirements, garbage disposal compliance and indicating planned routes, course alterations and rendezvous on charts.
Inmarsat – Powering global connectivity
Inmarsat is a leading provider of global mobile satellite communications services. It operates the world's most advanced commercial satellite fleet to provide reliable connectivity worldwide. Inmarsat's strategy is focused on sustained profitable growth through expanding its satellite capacity and services. This includes completing its Global Xpress high-speed broadband network and pursuing new opportunities like European aviation connectivity. Inmarsat is also developing its next-generation satellite constellations to power the growing Internet of Things and provide high-speed services into the 2020s.
Visibility lrg
This document discusses vessel speed and safety at sea. It states that every vessel shall proceed at a safe speed to take proper action to avoid collisions and stop within a safe distance based on conditions like visibility, traffic, vessel manageability, hazards, and draft. In determining a safe speed, factors like state of visibility, traffic density, vessel handling characteristics, background lighting, wind/sea conditions, and navigational hazards must be considered.
Life saving signals
This document provides a history of international conventions and regulations regarding maritime safety from 1914 to 2012. It summarizes key developments like the establishment of the International Convention for the Safety of Life at Sea after the Titanic disaster in 1914, the introduction of radar in the 1960s, and the requirement for Electronic Chart Display systems in 2012. The document also describes various life saving signals, distress communication methods, and emergency equipment used at sea like flares, dye markers, and radio protocols.
Meteorology presentation
The document discusses various types of charts used for ocean navigation including routeing charts, wave charts, ice charts, and current charts. Routeing charts are published monthly for major ocean basins and contain information about winds, temperatures, currents, shipping routes and hazards. Wave charts show historic and predicted wave heights and directions. Ice charts indicate ice coverage and are used to plan safe routes. Current charts display ocean circulation patterns to aid efficient voyages. Additional sources of marine weather data include Navtex broadcasts.
Sextant lrg
The document summarizes the basic construction and use of a marine sextant. It describes the main components of a sextant including the frame, index bar, index glass, and horizon glass. It discusses correctable errors like perpendicularity, side error, and collimation error. It provides instructions on testing for errors and making adjustments. The document also covers care, calibration needs, and best practices for taking accurate sightings with a sextant.
Celestial Sphere SK
This document discusses different coordinate systems used to locate celestial bodies in the sky, including the horizontal and equatorial coordinate systems. The horizontal coordinate system uses azimuth and altitude to describe positions relative to the observer's horizon. Issues with this system include variations based on location and time. The equatorial coordinate system uses right ascension and declination to provide a consistent frame of reference. Right ascension is measured eastward along the celestial equator, while declination indicates positions north or south of the equator. This system allows uniform positioning of stars and other objects from any location on Earth.
Taking over a navigational watch lrg
The document provides guidance on properly handing over and taking over the navigational watch. It states that the officer of the watch should not hand over the watch if the relieving officer is incapable, and the relieving officer must ensure all crew members are capable of performing their duties. The relieving officer must also satisfy themselves on the safety of the vessel before taking over the watch. Proper lookout, navigation with pilots, and environmental protection are also discussed.
Viewers also liked (20)
Similar to Satellite communications lrg
13a solucoes inmarsat_em_banda_ka
Global Xpress is Inmarsat's next-generation satellite system providing global Ka-band coverage. It will consist of three Inmarsat-5 satellites and one spare, based on the proven Boeing 702HP design. The satellites will provide both global broadband services through 89 fixed beams per satellite as well as high-capacity regional services through 6 steerable spot beams per satellite. Global Xpress will offer global IP connectivity with speeds up to 50Mbps downlink and 5Mbps uplink through flexible terminal options from 45cm to 2.4m for land, maritime and aeronautical use.
Low altitude airships for seamless
The Aviation Administration policy prohibits the use of mobile phones in Aircraft during
transition for the reason it may harm their communication system due to Electromagnetic
interference. In case the user wants to access cellular network at higher altitudes, base station
access is a problem. Large number of channels are allocated to a single user moving at high
speed by various Base Stations in the vicinity to service the request requiring more resources.
Low Altitude Platforms (LAPs) are provided in the form of Base stations in the Airships with
antennas projected upwards which has direct link with the Ground Station. LAPs using Long-
Endurance Multi-Intelligence Vehicle (LEMVs) equipped with an engine for mobility and stable
positioning against rough winds are utilized. This paper proposes a system that allows the
passengers to use their mobiles in Aircraft using LAPs as an intermediate system between
Aircraft and Ground station. As the Aircraft is dynamic, it has to change its link frequently with
the Airships, MANETs using AODV protocol is established in the prototype using NS2 to
provide the service and the results are encouraging.
Airborne Satellite Communications on the Move
Military forces require situational awareness no matter
where they are located. From warfighters in the field,
sailors on Navy ships, troops in flight and decision
makers at central command, everyone must share a
common operating picture to accomplish the mission.
Yet, that can be significantly challenging when troops
are constantly in motion, traveling across land,
sea and air.
INMARSAT - I SSPI Day 2017
Global mobile satellite company Inmarsat provides broadband connectivity worldwide through a network of satellites and ground stations. It has been operating for over 30 years and serves customers in sectors like maritime, aviation, and energy that require communications where terrestrial networks don't reach. Inmarsat is investing in new satellite launches and technologies like its Global Xpress network to continue expanding capacity and services into the future, including opportunities in aviation and automotive connectivity.
4K Solutions Special Operations Assault Communications _v3.0
The 75th Ranger Regiment needed a light-weight all-terrain vehicle (LT-ATV) for command and control communications that could be quickly deployed from helicopters. Working with industry partners, they developed a communications system for the Kawasaki Teryx LT-ATV that included radios, antennas, batteries, and screens for video feeds. Custom mounts were designed to allow flexible installation and removal of equipment. The LT-ATV provides improved communications capability for the Rangers' complex special operations missions.
4K Solutions Special Operations Assault Communications _v3.0
The 75th Ranger Regiment needed a more robust mobile communications capability for complex special operations missions. They developed light-weight all-terrain vehicles (LT-ATVs) based on the Kawasaki Teryx platform to carry communications equipment that could be airlifted by various aircraft. Ferno Military Systems customized the LT-ATVs for the Rangers by designing mounts and racks for radios, antennas, batteries, and screens to view surveillance footage. The LT-ATVs provide the Rangers with secure, mobile communications across different terrains and mission requirements.
Advanced Remote Air-Ground (RAG) System
The document describes an advanced remote air-ground (RAG) system based on multilateration (MLAT) technology. The proposed system consists of an MLAT system, CCTV system, wind shear and microburst detection radar, meteorological observation system, and VHF radio communication system. It is intended to enhance safety control of passenger planes at local airports. The advanced MLAT uses optical fiber connections between receivers to improve detection performance. It can track aircraft within 30nm of an airport. The RAG system would allow flight service centers to remotely support safe landings and takeoffs at airports without air traffic control towers using MLAT and CCTV. It is expected to contribute to safety and efficiency at local airports with low cost
Two-Way Satellite Service
Speed Cast Ltd is one of the most prominent service providers of satellite communication services the world over. They have been providing two-way satellite services in the name of Seacast to the maritime industry and they are being extensively used by ships and vessels at sea for having a better communication system on board. You can contact them to know more about their services.
SESAR Communications Architecture
The Technology Forum, on 31 March, began with a presentation from Patrick Lelievre (Airbus) looking at the 4-D Trajectory from an aircraft perspective and the enhanced automation that will result. This was followed by a presentation by Theodor Zeh (Frequentis) on the human role, highlighting the ground system aspects and comparisons with automated environments outside of ATM. Richard Houdebert from Thales gave a presentation on how the SESAR programme connects both air and ground, and, to conclude, Angelo Luca Barba, from SELEX, presented the underlying communication technology elements and the communication work being pursued across the SESAR Programme.
Satellite nets
This document discusses satellite communications and provides an overview of key concepts:
- Satellite communications systems have two main components - the satellite in orbit which receives and transmits signals, and ground stations that send signals to and receive signals from the satellite.
- Satellites are used for various applications including telecommunications, cellular networks, television broadcasting, maritime communications, land mobile communications, aircraft messaging, and global positioning.
- Technological aspects discussed include error correction techniques like forward-error correction and automatic-repeat-request, hybrid satellite-terrestrial networks, and using protocols like TCP/IP over satellite links.
AMTS product catalog Marine
AMTS, Your preferred supplier for Navigation & Communication, Automation, Safety and Entertainment systems onboard vessels and offshore constructions.
Gmdss .ppt
The document provides information about the Global Maritime Distress and Safety System (GMDSS), including its requirements, communication systems, and call procedures. Specifically, it outlines the minimum radio equipment required on ships, requirements for different sea areas, and how Digital Selective Calling (DSC) is used to automate distress alerts and initiate contact between stations in emergencies. It also describes call categorization and formats for distress, urgency, safety and routine calls in the GMDSS system.
D010131824
This document provides an overview of VSAT (Very Small Aperture Terminal) network technology. It describes the key components of a VSAT network including the outdoor and indoor units, hub station, and satellite. The outdoor unit includes the antenna, transceivers, and amplifiers while the indoor unit includes the multiplexer/demultiplexer, modem, and interfaces. VSAT networks can be configured in a star topology with all traffic routed through the central hub or in a mesh topology allowing direct terminal-to-terminal communication. Common applications of VSAT networks include corporate networks, broadcasting, and interactive data services between distributed sites.
VSAT Network Overview
This document provides an overview of VSAT (Very Small Aperture Terminal) network technology. It describes the key components of a VSAT network including the outdoor and indoor units, hub station, and satellite. The outdoor unit includes the antenna, transceivers, and amplifiers while the indoor unit includes the multiplexer/demultiplexer, modem, and interfaces. VSAT networks can be configured in a star topology with all traffic routed through the central hub or in a mesh topology allowing direct terminal-to-terminal communication. Common applications of VSAT networks include corporate networks, broadcasting, and interactive data services between distributed sites.
Vsat
The document summarizes VSAT technology, including its definition, history, components, uses, and future applications. Key points include:
- VSAT stands for Very Small Aperture Terminal and uses small satellite dishes less than 3.8 meters to transmit and receive data via satellite.
- The technology has been in development since the 1920s and was first used commercially in the 1960s for satellite television broadcasts.
- Modern VSAT systems use components like antennas, BUCs, LNBs, and indoor modems to transmit and receive data via geosynchronous satellites.
- Applications include broadband internet access, VoIP, and monitoring systems. The maritime VSAT market was over $400 million in 2007.
- Future
Airtime brosura
SRH is a leading provider of satellite communication solutions in Greece, offering services via Inmarsat, Thuraya, Iridium, and VSAT networks. It provides integrated solutions to minimize costs and maximize communication effectiveness for customers. SRH's broad range of ship-to-shore and shore-to-ship services offer global coverage, high performance, easy integration, fast deployment, flexibility, and advanced security. SRH also provides value-added services like email, antivirus, tracking, and technical support.
Saab Airborne Surveillance Media Brief Farnborough 2014
Matthew Smith, Air Campaign Leader and Erik Winberg, Director Air Campaigns present Saab's ISR capabilities at Farnborough International Airshow 2014.
RPAS and Manned Aircraft
Unmanned aerial vehicles and manned aircrafts are increasingly being used as vehicles to capture intelligence data for defense, state and civil applications. The aerial vehicles are equipped with technology to collect both video and sensor data which are communicated to a mission control center for further processing. When outside the reach of direct data relays due to distance or environment (e.g. mountainous regions) satellite communications is used for Beyond-Line-of-Sight (BLoS)
communication.
Automatic-identification system gr1.pptx
The document discusses the Shipborne Automatic Identification System (AIS), which is used on ships and vessels to identify and locate nearby ships and exchange information with shore stations. AIS transmits dynamic information like position, speed, and heading, as well as static vessel details. It consists of VHF transmitters and receivers, with timing from GNSS. There are Class A and B systems, with Class A mandated for large commercial vessels. AIS has benefits like enhanced situational awareness but also errors if data is incorrect. It contributes to safety and traffic management.
Aero Solutions Overview
he ST Engineering iDirect Velocity™ product line is a shared,
two-way Time Division Multiple Access (TDMA) system built to
dynamically allocate bandwidth from a shared pool based on realtime
usage requirements. For commercial airlines, this means the
ability to deliver high throughput, bandwidth-efficient in-flight
connectivity by sharing a pool of bandwidth across a fleet or air-craft,
taking advantage of different flight patterns and time zones.
Similar to Satellite communications lrg (20)
4K Solutions Special Operations Assault Communications _v3.0
4K Solutions Special Operations Assault Communications _v3.0
4K Solutions Special Operations Assault Communications _v3.0
4K Solutions Special Operations Assault Communications _v3.0
Saab Airborne Surveillance Media Brief Farnborough 2014
Saab Airborne Surveillance Media Brief Farnborough 2014
More from Lance Grindley
Total tide lrg
The document describes the Total Tide tidal prediction software launched in May 2001. It provides tidal predictions for ports and allows viewing of tidal curves, times and heights for high and low waters. The software also includes features for tidal streams, vessel dimensions, and astronomical data. Licensing rules allow the software to be installed on an unlimited number of workstations.
Time lrg
This document discusses the origins and definitions of various units of time measurement. It provides the following key points:
- Years, days, and months are based on the motions of the Earth, sun, and moon. A day is one rotation of the Earth, a year is one revolution around the sun, and a month was originally one revolution of the moon.
- Solar days vary slightly in length due to the elliptical orbits of planets and Earth's axial tilt. Local mean time uses longitude to account for time differences between locations.
- Astronomy uses precise time measurements like Greenwich Hour Angle and Local Hour Angle to determine positions of celestial bodies based on their movement relative to meridians. The Local Hour Angle
Tides revision lrg
This document provides information about tides and tidal streams, including:
- How to calculate tidal heights and depths from levels and datum
- How to calculate predicted tide heights for standard and secondary ports
- How tidal streams are calculated using tidal diamonds and stream atlases
It then gives an example calculation of tide heights for Watchet using the standard port of Avonmouth. The high water is predicted to be 12.8 meters at 0848 hours on July 26th at Watchet.
Tides and tsunamis lrg
The document discusses various types of ocean waves including tides, tsunamis, and seiches. It explains that tides can be spring or neap depending on the relative positions of the sun and moon, and can be diurnal, semidiurnal, or mixed depending on their daily cycles. It also discusses how interference patterns from multiple wave sources can cause tides to constructively or destructively interfere in different locations.
Tides and tidal streams 1 lrg
This document provides information about tides and tidal streams, including:
- The gravitational forces that cause tides from the Moon and Sun.
- How tides occur twice daily, with high and low waters approximately 6 hours and 10 minutes apart.
- How spring and neap tides occur depending on the Moon's position relative to the Earth and Sun.
- How to use Admiralty Tide Tables to calculate tide heights and depths at any location and time.
Tides & astro consolidation lrg
This document provides examples of tide and tidal calculations. Example 1 calculates limiting danger line depth based on vessel draught and predicted tide height. Example 2 calculates required tide height for a vessel deck to be level with a jetty. Further examples calculate predicted tide heights and times at various locations based on tide tables and charts. Examples also cover sunset/twilight times based on latitude/longitude and gyro error calculation from observed sunset bearing. The document demonstrates various tidal calculations and concepts.
Rotr 1 lrg
The document provides an overview of the Rules of the Road, which establish navigation rules to prevent collisions between vessels. It is structured in five parts that cover general rules, steering and sailing rules for different visibility conditions, lights and shapes, sound and light signals, and exemptions. Key points include rules regarding safe speed, determining risk of collision, navigation in narrow channels, traffic separation schemes, overtaking, actions of stand-on and give-way vessels, and maneuvering signals. The document also provides references for additional guidance on applying the rules of the road.
Restricted visibility lrg
This document discusses navigation and collision avoidance in restricted visibility. It outlines key rules for vessel conduct when visibility is limited, including proceeding at a safe speed and having engines ready. Parallel indexing is described as the primary method for monitoring navigation using radar to track fixed objects and course changes. The document also details the sound signals vessels must use in restricted visibility, such as one prolonged blast for power-driven vessels making way through water. Maintaining accurate position information and pre-planning routes can additionally aid safe navigation in poor conditions.
Responsibilities of the oow lrg
The document outlines the duties and responsibilities of the Officer of the Watch (OOW) according to STCW regulations. The OOW is primarily responsible for the safe navigation of the ship and compliance with collision regulations. Key duties include maintaining a proper lookout, navigating the ship according to the passage plan, using all navigational equipment, communicating via radio, and notifying the master immediately of any issues or hazards. The OOW must execute their duties safely and in accordance with international regulations.
Rescue boat handling lrg
This document provides information on boat handling and terminology. It discusses key concepts such as:
1) The relationship between boat behavior and physics can be perplexing, and no two boats respond the same even in identical conditions, requiring practice to develop boat handling skills.
2) Maneuvering boats successfully requires understanding characteristics like hull type, propeller direction, effects of wind and current, and how to properly use lines when docking or departing.
3) Terminology is introduced for components, motions, and port/starboard directions to facilitate understanding between boat operators.
Radio navaids
LORAN-C is a hyperbolic radio navigation system that uses time difference measurements between signals transmitted by master and slave stations to determine a user's position. It operates at a basic frequency of 100kHz and can achieve accuracies of less than 300 feet within 1200km of groundwave coverage or up to 11 meters within 3000km of skywave coverage. Charts for LORAN-C can be found in folios of the 300 chart series, and it functions by measuring the time difference between signals from a master station and two slave stations.
Radar plotting lrg
This document provides instructions for plotting radar targets over a 6 minute interval to determine course, speed, closest point of approach (CPA), and time to CPA (TCPA) of other vessels. It outlines the steps to mark initial bearing and range, draw target movement line, transfer own vessel movement, calculate distances traveled, and determine other vessel's course, speed, CPA and TCPA. It concludes that in this example, if no course or speed changes are made, there will be a collision at a CPA of 0.0 nautical miles at 12:09:48, and that the observer is the give-way vessel in a crossing situation.
Principles of stability lrg
This document defines key terms and concepts related to ship stability, including Archimedes' principle, center of gravity, center of buoyancy, metacenter, righting arm, and free surface effect. It explains that a ship is stable when its center of buoyancy is below and to the side of the center of gravity, and that the metacenter indicates the ship's stability based on its position relative to the center of gravity. Additionally, it discusses how stability curves illustrate a ship's righting arm at different angles of heel and how the free surface effect can negatively impact stability when compartments are only partially filled with water.
Pilotage lrg
Pilotage involves navigating close to land and hazards requiring attention to a vessel's draft. It draws on references like charts, sailing directions, port guides and experience. Sources of information include the largest scale chart, tidal data, and personal experience. An estimated time of arrival is chosen based on depths, tidal streams, time of day, and operational factors. A track is selected using clearing bearings that consider the vessel's underwater profile and isolated dangers, and is drawn on the chart. Wheel over positions are marked along with tidal stream effects. Pilotage execution involves using transits, running headings and speeds, taking over control, and commentary while flexibly adapting to actual conditions and traffic.
Paper & electronic charts lrg
The document discusses the making and use of paper charts and electronic charts for navigation. It provides a brief history of how soundings were obtained from hand-lead lines to modern multi-beam sonar. Electronic charts have benefits over paper charts like reduced clutter and ability to be incrementally updated. The document also examines electronic chart display and functionality including depth areas, vessel draft effect, and change analysis.
Ood duties lrg
The document outlines the duties and responsibilities of the Officer of the Watch (OOW) while at sea and in harbor. The OOW is accountable to the Commanding Officer and has authority over all other crew members regarding duties. Key responsibilities include ensuring the safety of the ship, crew, and equipment by monitoring for emergencies like fire, flooding, collisions, and storms. The OOW must also oversee the ship's appearance, discipline, stores embarkation, gangway security, and ship's boats. The OOW reports directly to the Master and assumes these duties and responsibilities when taking over the watch.
Ocean currents lrg
The document summarizes ocean currents. Surface currents make up 10% of ocean water and circulate in the upper 400 meters. Deep water currents comprise the remaining 90% and move around ocean basins through density and gravity-driven thermohaline circulation. Water densities vary based on temperature and salinity, causing deep waters to sink into ocean basins at high latitudes where temperatures are cold enough to increase density. A list of major ocean currents is also provided.
Ocean circulation lrg
Ocean currents are complex patterns influenced by various factors like wind, heat, and the Earth's rotation. They move ocean waters constantly and influence climate and living conditions on land. There are surface currents driven by wind and deep water currents like the global thermohaline circulation. The document then provides details on different ocean basins, currents within them, and phenomena like El Nino that disrupt normal current patterns. Sections of the Atlantic, Pacific and conditions during El Nino are depicted.
More from Lance Grindley (18)
Recently uploaded
Columbus Data & Analytics Wednesdays - June 2024
Columbus Data & Analytics Wednesdays, June 2024 with Maria Copot 20
Letter and Document Automation for Bonterra Impact Management (fka Social Sol...
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on automated letter generation for Bonterra Impact Management using Google Workspace or Microsoft 365.
Interested in deploying letter generation automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
5th LF Energy Power Grid Model Meet-up Slides
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
HCL Notes and Domino License Cost Reduction in the World of DLAU
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Skybuffer SAM4U tool for SAP license adoption
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Skybuffer AI, built on the robust SAP Business Technology Platform (SAP BTP), is the latest and most advanced version of our AI development, reaffirming our commitment to delivering top-tier AI solutions. Skybuffer AI harnesses all the innovative capabilities of the SAP BTP in the AI domain, from Conversational AI to cutting-edge Generative AI and Retrieval-Augmented Generation (RAG). It also helps SAP customers safeguard their investments into SAP Conversational AI and ensure a seamless, one-click transition to SAP Business AI.
With Skybuffer AI, various AI models can be integrated into a single communication channel such as Microsoft Teams. This integration empowers business users with insights drawn from SAP backend systems, enterprise documents, and the expansive knowledge of Generative AI. And the best part of it is that it is all managed through our intuitive no-code Action Server interface, requiring no extensive coding knowledge and making the advanced AI accessible to more users.
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
Generating privacy-protected synthetic data using Secludy and Milvus
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Discover the seamless integration of RPA (Robotic Process Automation), COMPOSER, and APM with AWS IDP enhanced with Slack notifications. Explore how these technologies converge to streamline workflows, optimize performance, and ensure secure access, all while leveraging the power of AWS IDP and real-time communication via Slack notifications.
Choosing The Best AWS Service For Your Website + API.pptx
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
A Comprehensive Guide to DeFi Development Services in 2024
DeFi represents a paradigm shift in the financial industry. Instead of relying on traditional, centralized institutions like banks, DeFi leverages blockchain technology to create a decentralized network of financial services. This means that financial transactions can occur directly between parties, without intermediaries, using smart contracts on platforms like Ethereum.
In 2024, we are witnessing an explosion of new DeFi projects and protocols, each pushing the boundaries of what’s possible in finance.
In summary, DeFi in 2024 is not just a trend; it’s a revolution that democratizes finance, enhances security and transparency, and fosters continuous innovation. As we proceed through this presentation, we'll explore the various components and services of DeFi in detail, shedding light on how they are transforming the financial landscape.
At Intelisync, we specialize in providing comprehensive DeFi development services tailored to meet the unique needs of our clients. From smart contract development to dApp creation and security audits, we ensure that your DeFi project is built with innovation, security, and scalability in mind. Trust Intelisync to guide you through the intricate landscape of decentralized finance and unlock the full potential of blockchain technology.
Ready to take your DeFi project to the next level? Partner with Intelisync for expert DeFi development services today!
Nunit vs XUnit vs MSTest Differences Between These Unit Testing Frameworks.pdf
When it comes to unit testing in the .NET ecosystem, developers have a wide range of options available. Among the most popular choices are NUnit, XUnit, and MSTest. These unit testing frameworks provide essential tools and features to help ensure the quality and reliability of code. However, understanding the differences between these frameworks is crucial for selecting the most suitable one for your projects.
Fueling AI with Great Data with Airbyte Webinar
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Building Production Ready Search Pipelines with Spark and Milvus
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
Presentation of the OECD Artificial Intelligence Review of Germany
Consult the full report at https://www.oecd.org/digital/oecd-artificial-intelligence-review-of-germany-609808d6-en.htm
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...
Predictive maintenance is a proactive approach that anticipates equipment failures before they happen. At the forefront of this innovative strategy is Artificial Intelligence (AI), which brings unprecedented precision and efficiency. AI in predictive maintenance is transforming industries by reducing downtime, minimizing costs, and enhancing productivity.
Digital Marketing Trends in 2024 | Guide for Staying Ahead
https://www.wask.co/ebooks/digital-marketing-trends-in-2024
Feeling lost in the digital marketing whirlwind of 2024? Technology is changing, consumer habits are evolving, and staying ahead of the curve feels like a never-ending pursuit. This e-book is your compass. Dive into actionable insights to handle the complexities of modern marketing. From hyper-personalization to the power of user-generated content, learn how to build long-term relationships with your audience and unlock the secrets to success in the ever-shifting digital landscape.
Recently uploaded (20)
Letter and Document Automation for Bonterra Impact Management (fka Social Sol...
Letter and Document Automation for Bonterra Impact Management (fka Social Sol...
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Your One-Stop Shop for Python Success: Top 10 US Python Development Providers
Nordic Marketo Engage User Group_June 13_ 2024.pptx
Nordic Marketo Engage User Group_June 13_ 2024.pptx
HCL Notes and Domino License Cost Reduction in the World of DLAU
HCL Notes and Domino License Cost Reduction in the World of DLAU
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Generating privacy-protected synthetic data using Secludy and Milvus
Generating privacy-protected synthetic data using Secludy and Milvus
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Let's Integrate MuleSoft RPA, COMPOSER, APM with AWS IDP along with Slack
Choosing The Best AWS Service For Your Website + API.pptx
Choosing The Best AWS Service For Your Website + API.pptx
A Comprehensive Guide to DeFi Development Services in 2024
A Comprehensive Guide to DeFi Development Services in 2024
Nunit vs XUnit vs MSTest Differences Between These Unit Testing Frameworks.pdf
Nunit vs XUnit vs MSTest Differences Between These Unit Testing Frameworks.pdf
Building Production Ready Search Pipelines with Spark and Milvus
Building Production Ready Search Pipelines with Spark and Milvus
Presentation of the OECD Artificial Intelligence Review of Germany
Presentation of the OECD Artificial Intelligence Review of Germany
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...
leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...
Digital Marketing Trends in 2024 | Guide for Staying Ahead
Digital Marketing Trends in 2024 | Guide for Staying Ahead
Satellite communications lrg
- 1. Grunt Productions 2007 Satellite Communication A Brief By Lance Grindley
- 2. Grunt Productions 2007 The Inmarsat System Inmarsat provides the space segment necessary for instant and reliable distress and safety accessed by users on board vessels fitted with either Inmarsat –A, B and C terminals. These terminals can be used to satisfy most of the medium and long-range communications functions specified in the GMDSS.
- 4. Grunt Productions 2007 Inmarsat ConceptInmarsat Concept
- 6. Grunt Productions 2007 Ships fitted with Ship Earth Stations (SES) can also be utilized for originating and receiving communications with other ships involved in distress cases. When multiple ships are involved, the Enhanced Group Call (EGC) system can be advantageous for operational updates and planning actions from RCCs. These ships can also be directly contacted by RCCs via telephony or telex. An RCC may also be equipped with an Inmarsat terminal (SES) for SAR communications.
- 7. Grunt Productions 2007 Inmarsat Enhanced Group Calling System (EGC)Inmarsat Enhanced Group Calling System (EGC)
- 8. Grunt Productions 2007 Inmarsat also provides capability for an L-band satellite EPIRB service called Inmarsat-E. This satellite EPIRB will float free from a sinking ship and automatically transmit the distress alert including the position of the incident.
- 11. Grunt Productions 2007 A satellite distressA satellite distress alerting systemalerting system based on lowbased on low altitude near polaraltitude near polar orbiting satellitesorbiting satellites designed to locatedesigned to locate distress beaconsdistress beacons (EPIRBs).(EPIRBs). The COSPAS-SARSAT SystemThe COSPAS-SARSAT System
- 12. Grunt Productions 2007 The COSPAS-SARSAT EPIRBs transmit signals that are received by their satellites. These signals are then relayed to ground receiving stations called Local User Terminals (LUTs), which process the signals to determine the location of the EPIRB. Each LUT is, in turn, linked to a Mission Control Center (MCC) and alert messages are forwarded to the appropriate RCC for action.