On Fri, Sep 13, 2019 at 12:56 AM, <norbert.kohns@...> wrote:
Hi George,
I did some comparison with a 100R in parallel with 100pF and 50R in serial
with 100nH.
Plot 1-3 are the s1p files from the NanoVNA.
What is your opinion?
Best regards
Norbert
Hi Norbert,
Today is a very busy day here but I did find a few minutes to look at your study.
My initial impression is that the NanoVNA is very close to the VNWA in these two cases. For the inductor/resistor combination, the SWR never exceeds 7 so that gives me confidence in the results.But the capacitor/resistor has high SWR, increasing with frequency. So, while the two units agree, I would be a bit wary of the results at the very high SWR.
I'm not sure how you constructed the test objects, Can their values be traced back to some standard? That may be hard to do.
One of the things that would be nice to have is a set of standard test objects to help verify the NanoVNA operation, in addition to the SOL.
