Re: 7912AD Repair
On Sun, 9 Apr 2017 17:45:31 +0200, you wrote:
On 8 Apr 2017 9:17 p.m., "email@example.com [TekScopes]" <The distance restriction can be relaxed a little by using larger
diameter coaxial cable (1) so it might pay to make a custom mimimum
length RG-8 sized patch cable for this sort of thing. LMR-400 cable
might be the best commonly available cable for this but maybe someone
else has some experiece with it. I get by with some 1ns and 2ns
length but practially indestructable RG-400 (RG-58 size) cables.
My personal experience is that the performance limitations of
RG-174/RG-316 is very apparent at any useful length and RG-58/RG-400
slightly so. There are some examples here at the bottom of using
different types and length of transmission lines:
(1) Up to the TEM cutoff frequency anyway which is 16 GHz for LMR-400
and 13.5 GHz for RG-8 so that is not a problem.