Ian Jackson wrote:
In message , g g
writes

i wont to build a dipole ant for 10 meters can i use tv coax .or do i
need to use rg.58

Yes,
Ian.
Yes, you can use 5 ohm tv coax but you will be better off using 50 ohm
rg 8 or rg 58 cable as the output circuit of your radio is optimized for
the 50 ohm cable. There is aloss of power in the mismatched cable. Not
much but it is there.
If you must use 75 ohm cable then investigate using a matching section
of 50 ohm cable.

Dave WD9BDZ