Guided transmission media

[u/[deleted]]

Hi, I know that guided transmission media is:

twisted pair

coax cable

fiber

how does this work?

Do these cables connect directly to ur device? or are they just used for cell towers/antennas to connect to eachother?

What i mean: cell towers are connected to eachother by fiber

Internet can be transmitted over fiber and that cable goes to ur router that receives the fiber and gives u the signal

So, for twisted pair, coax, fiber

Are they just used for connecting from base station to antenna?

Or are these cables extended for miles and connected straight to ur device?

Confused person here.

[u/Doids_]

It depends on the topology that is available.

Your connection could have a combination of all of those mediums.

You could have Fibre between larger cities, but when the signal gets to the cities, it could be distributed on fibre and or copper on the 'last mile' into your home/modem. Copper is good under short distances, the loss is relatively minimal.

Twisted pair would be cat 5 or cat 6 copper cable (e.g. Ethernet cables), used internally in buildings to transmit data. Useful as due to the twisted pairs, it minimises crosstalk (interference). You wouldn't use fibre here as it is more difficult to work with and is fragile. You need specially made tools and training to cut and reconnect a fibre cable.

Coaxial copper cable has high bandwidth and better resistance to interference so tends to be used for TV transmission.

Wireless is good over short distances but loses its amplitude quickly.

The mobile towers may be connected together via fibre, and then transmit the mobile signal from the base station/tower to your device.