a question concerning wireless systems

Greetings

I have been reading a number of wireless users commenting on the lack of
distance they can obtain using outdoor antennas.

May I ask a question.

How long is the transmission line between your transmitter / receiver, which
I understand is in your computer, and your antenna? And ( sorry about
using the word 'and' at the start of my sentence) what kind of transmission
line are you using?

Larry