The document outlines the concepts of transmission media, categorized into wired (guided) and wireless (unguided) types. Wired media includes tangible cables like fiber optics and coaxial, offering high-speed data transmission but facing geographical limitations and maintenance challenges. In contrast, wireless media uses signals, providing flexibility and broader reach but dealing with security and interference issues.

1. DAR ES SALAAM INSTITUTE OF
TECHNOLOGY
SIGNAL AND DATA PROCESSING
CIRCUIT
ASSIGNMENT OD 014CO
1. ERICK KASHOMA 130222433439
2. MARSEL COSTANTINE 130222421203

2. What is Transmission media
• Sending of data from one device to another
called Transmission of data.
• Medium used to transmit data call media
• So transmission of data through medium
called Transmission media.its the pathway
that carries the information from sender to
receiver.
• Transmission media are located below physical
layer

3. Types of transmission Media
• Transmission media classified into two group
1. Wired or guided or bound transmission
media
2. Unwired or unguided Transmission media

4. Transmission Media
Wired/guided Wireless/unguided

5. Wired or guided transmission media
• Wired transmission media are the cables that are
tangible or have physical existence
Examples of wired transmission are
Fiber optical cables
Co axial cable
Twisted cable

6. Advantage of wired transmission
media
• It possible to connect more devices to one
another using wired network
• Some of wired transmission media for
instance DLS:internet access will transmit data
far faster than wireless
• Its compatible with both order cell phone and
computers using everything from phone line
to usb or Ethernet

7. Disadvantage of wired transmission
media
• It has limited by the physical geography
• Some of cables affected by external
electromagnetic field eg UTP
• Some of cables needs expert during the
maintenance and installation process
• Its expensive

8. Application of wired or guided
transmission
• They are used in telecommunication company
• Highly bandwidth capability with unshielded
twisted pair cables is used in LAN
• The DSL(digital subscribe line) line that are
used in telephone companies to provide high
data rate connection

9. Wireless or unguided transmission
media
• This is away of transmitting data without using
cables
• Some of popular examples of unguided
transmission media are
Microwave
Radio wave
Infra red

10. Advantage of wireless or unguided
transmission media
• Its not bounded by physical geography
• It has ability to transfer data far compared some of
wired transmission
Disadvantage
• Wireless transmission media has no good security so
its will be easily to be attacked with hacker
• Wireless connection often suffer from interference and
weak signals depending on location
-so its affect the speed of data transmission
• Weather change can affect signal transmission
sometime tend low or weak signal

11. Application of wireless or unguided
media
They are used in satellite network
They are used in cellular phone
They are used in wireless LANs