Hello Marv,
I can tell by reading your question that some of your understanding of how the Nano VNA works is not clear.
First the Nano VNA has two connectors they are referred to as Channel0 and Channel1
The Nano VNA has two operation modes, Refection and Thru
Cannel0 is used for reflection mode measurements
Channel0 and channel1 are used for thru mode measurements
Think of the two antennas as a two-port network. Measuring the insertion loss (S21) between the two antennas will give you the coupling from one to the other.
You only need the display set up for LogMag
There is no crossing of one trace to the other. The LogMag trace gives you the coupling between the antennas as a function of frequency.
I assume you are doing the correct frequency start stop set up and a full SOLT calibration
The previous reply showed you how to calculate the amount of power induced into the second antenna when 25 watts is present on the first one
Hope this helps clear up things for you.
73 Greg WA1JXR
