Telecommunication

1. TELECOMMUNICATION
P.VARSHA [117011013974] ,
B.TECH [ECE] ,
2 nd YEAR ,
PERIYAR MANIAMMAI INSTITUTE OF SCIENCS AND
TECHNOLOGY ,
VALLAM , THANJAVUR.

2. TYPES OF COMMUNICATION NETWORKS
● Computer networks. ARPANET.
Ethernet. Internet. Wireless
networks.
● Public switched telephone
networks (PSTN)
● Packet switched networks.
● Radio networks.
● Television networks.

3. TELECOM PROCCESS
Telecom Business
Process
Outsourcing (BPO)
1
Invensis Telenologies,
an IT-BPO service
provider, enables
telecom companies
2
To ensure that
certain key processes
are delivering
efficiences .
3

4. TELECOMMUNICATION DEVICES
Telecommunication refers to the exchange
of information by electrical and elecronic .1
It passes the information by means of
over a signficant distances.2
Telecommunication devices includes
telephones, telegraph, radios, internet3
It also includes microwave
communication arrangements, fiber
optics, satellites .
4

5. IMPORTANCE OF TELECOMMUNICATION
1
Telecommunication is an
important tool for any kind of
business.
2 It enables companies to
communicate effectively.
3
It is used to deliver high
qualitity service to the
customer.
4 Telecommunication is
also a key for teamwork.
5
It enables the employees to
collabrate easily where they
locate.

6. USES OF TELECOMMUNICATION
Telecommunications are the means of
electronics transmission of information over
devices.
The informations may be in the form of
voice telephone calls.
It may also be in form of data, taxt,
images,(or) video.
Today, telecommunications are used to
organize computer systems.
More (or) less remote computer systems into
telecommunication networks.
1
2
3
4
5

7. USES OF RADIO
4
Besides being used for transmitting
sound and television signals, radio is
used for the transmission of data in
coded form.
3
The transmitting mediums are air,
space, nonconducting materials.
2
It conveys information through the
inverting media without wires.
1
It is used to convey information
from one place to another .

8. And cannot directly cause cancer.
This radiation does not have enough energy to
damage DNA.
The radio frequency electromagnetic radiation
they transmt and receive is very weak.
There still aren”t any good explanations for
how mobile phones could cause cancer.
MOBILE PHONES CONSIDERED
DANGEROUS

9. FREQUENCY DO AIRPLANES USE
122.925 MHz
Aviation UNICOM/Multicom/Air show
22.950 MHz
Aviation UNICOM Controlled Airports.
122.975 MHz
Aviation UNICOM.
122.975 MHz
Airplane to Airplane (high altitude airlines)

10. AVIATION LANGUAGE
Aviation English is the due facto
international language of civil aviation.
With the expansion of air travel in the
20 th century, there were safety
cancerns about the ability of pilots and
air traffic controllers to
communicate... Miscommunication
has been an factor of aviation
accidents.

11. CAREERS FOR TELECOMMUNICATIONS
1 Telecom Researcher
2 Field Manager
3 Hreware Designer
4
Electronic Designer
5Network Designer
6Product Manager
7Radio Frequencies
Engineers
8
Network Manager
FIELDS
AVAILABLE

12. CELL PHONES AFFECT THE
BRAIN
The Effects of cell phones radiation on
your Brains activity. The World Health
Organization (WHO) classifies call
phones radiation as a “possible human
carcinogen “ due to an increased risk
of brain cancer from long-term and
heavy use of cell phones .

13. AIR TRAFFIC CONTROL
The airports air traffic control tower
gives the plane a route clearance to
fly, and it pushes back from the gate.
The tower tells the pilot which
taxiways …...During this phase, the
aircraft is routed away from the
airport via an assigned route and
altitude.

14. AGE LIMIT FOR AIR TRAFFIC
CONTROLLER
This is due to an FAA requirement that
trainees begin their training at the
Academy later than their 31 st
birthday, and face mandatory
retirement at age 56. However, retired
military air trafic controllers may
qualify for appointmeny after reaching
31 years of age.

15. VHF Channels
Marine VHF radio refers to the radio
frequency range between 156 and 174
MHz, inclusive. The VHF signifies the
very high frequency of the
range…...Channel 16 (156.8 MHz) is
the international calling and distress
channel.