Hi Peter,

> It's a "ghost" of MSF, 60 kHz, which is incredible strong over there.
> All other signals appear twice in your plot shifted by +20 kHz.

Thank you very much for pointing that out !
 I didn't realize it myself, was too busy with other things
 
> I don't know what happend since I do not know (in depth) Perseus and
> SpecLab.

Something must be wrong with SpecLab when it uses Perseus h/w directly. 
I already reported the 20/60kHz problem to Wolfgang.

Winradio shows 60kHz is a bit weaker than 62,6 kHz. But the waterfall shows it 
much stronger, so that must be wrong. I can't check with perseus s/w now, as 
the h/w is still in use by SpecLab. I want to complete 24h.

I guess I better feed Speclab via Perseus-s/w DRM output. That didn't show the 
problems.



Jurgen Bartels  Suellwarden, N. Germany
hor. Antennas: 11-ele 45-87MHz 13-ele Band-III, 48-ele UHF, FM: 15.11 
TV: Winradio G305 / Fly2000 + video noise filter & variable IF BW
FM: Downconverter + Perseus + Speclab as WFM demod.
MW: staggered 300m Beverage 320°,  30 x 4m EWE 320°, Winradio & Perseus
http://dx.3sdesign.de/tv_offset_list.htm
http://dx.3sdesign.de/station_list.htm

http://fewo.3sdesign.de  - Vacation home: DX right at the Northsea coast