On Thu, Oct 10, 2019 at 11:03 AM, Gyula Molnar wrote:
RG174A/U is actually 50 Ohm.
You cannot believe marking, this is just some noname cable with any marking on it :)
The cable that I got with NanoVNA is marked just as "RG174 ROHS". But it has some high mismatch, because I measure it with dummy load at the end it has high waves, VSWR varies from 1.00 to 1.14.
When I do the same with RG405, there is no waves, VSWR is straight line with VSWR=1.01.
So, it looks, like this "RG174" is really 75 ohm. It explains why it works bad :)
