"Dustin" wrote in message
...
Hello, I am going to be making some adaptor harnesses for my HT, they are
going to have a PL-259 on one end and a SMA male end on the other, my
question is are the center conductor's inside the RG-58 and RG-174 the
same
diameter because I see all the jumper harness's that are available
commercially made of RG-174, but when I see DIY pages they are made of
RG-58, and I just want to make sure. I read that RG-58 has alot less loss
and is cheaper. Thanks

As the impedance is determined by the ratio of the outer conductor to the
center conductor (for the same insulation between them) the 174 has to have
a smaller center conductor than the 58. RG-58 does have more loss but for
less than 5 feet on two meters I doubt that you will notice it. Probably
not even on 440 mhz . If using the RG-58 try to find some with a stranded
center conductor as much of it seems to be solid wire.