Dear All,I was inspired by Gary's article at https://gpsd.io/ubxtool-examples.html#_antenna_testing and the fact that his script didn't work for me, I wrote a little shell script to visualise the data as graph. This script is public available at
https://github.com/hans-mayer/gnssspectrumBelow the result of my F9P with antenna HAB-ANN-MB-00-00 for L1 and L2 band.
I would be interested if your antenna has a similar RF spectrum as mine. Kind regards Hans --
