Pros and Cons of Coaxial Cable

Coaxial Cable

Advantages

    It has better shield against electromagnetic interference than twisted pair cable, so it can span longer distance at higher data bits per second (bps).
    It can be used for both analog and digital data transmissions. For analog data transmission, 75-ohm broadband coaxial is used and for digital transmission, 50 – ohm baseband cable is used.
    It is inexpensive as compared to twisted pair wires and UTP cables but easy to handle.

Trade-off between Coaxial Cable and Twisted-pair wiring
Following factors give the comparison between the coaxial cable and twisted pair wiring as transmission media.
Cost
In general, coaxial cable is more expensive by a factor of two or three, than twisted pair, and more expensive by a smaller factor than shielded twisted pair.
Data rate
The difference between coaxial and twisted pair cable is more apparent in the data rate that they support. For comparable distances to be spanned, twisted pair will typically be suitable for data rates of at least an order of magnitude less. If the data rate of choice is 1 – Mbps, then either coaxial cable or twisted pair will suffice at distance out to several hundred meters.
Security
Cables that employ copper conductors can easily be breached by listening equipment. If the main consideration is security, then fiber cable is the only choice to avoid espionage. However it is to be remembered that no system can ever be perfectly secure. Even fiber-optic lines can be tapped without detection.
Electromagnetic compatibility
Coaxial cable emits less radiation which may cause less interference with the communication equipment as compared to twisted wires.
Disadvantages

    More expensive to install compare to twisted pair cable.
    The thicker the cable, the more difficult to work with.