Transmission line specifications

[Mohanad_1820]

Hi guys,
I want to fly my P4 in the winter, where I am in my basement. The problem is that the signal in the basement is extremely week and I cannot follow my FPV when my bird is far away more than 500m.
So I am thinking to put a transmission line between my transmitter (controller) and the antennas. I can put the antennas upstairs. The distance between the stairs is around 25 meter.
and my question is
Have anyone done this before?
What type of coaxial cable should I use? What are my options?
Should I do it for both antennas or is it enough to do it with only one of the two antennas?

 

[tcope]

I'm wondering if you will be externally recording the crash.

 

[Mohanad_1820]

I'm wondering if you will be externally recording the crash.

I need to stay downstairs for other purposes.

 

[r62ewa]

Here's a healthy read for you, you should find some useful information in this thead:

Flying from inside house or car anyone?

User Jeremiah Nelson seems to have a good handle on flying from inside.

 

[BigAl07]

Hello

Welcome to the forum and the addiction er hobby

This link may help you but keep in mind that you really need to be able to see where you're flying and the area around you for safety reasons.

Flying from inside house or car anyone?