Thanks for the information Marco.
Maybe you can verify the signals on the attached picture (not 20m but nearer 20KHz)?
I think one is JXN on 16.4KHz, but the others are possibly solar panel radiation around 16KHz and the comb of 100Hz spikes might be a Siemens Gigaset C430A, but I am only guessing at these.
main@SDR-Radio.groups.io [mailto:main@SDR-Radio.groups.io] On Behalf Of Marco Steiner
It‘s STANAG PBB Ny DenHelder Netherlands
Freundliche Grüße / Best regards