"David" skrev i meddelandet
...

Does anyone have the sevice manual for this one? Is it possible to tap
the
IF anywhere on the print? Would like to start experimenting with DRM and
software defined radio...

Do you have an oscilloscope or a counter?

No, and that's my big problem here...

Do you have another receiver that tunes to 450-455 kHz?

Well, I do have a homebrew IF-stage (455 kHz) and a downkonverter to 12 kHz
from Sat-Schneider. I also have a very simple front end and an oscillator
that's far from stable with a lot of harmonics... This stuff actually work
for AM but it's too unstable for SSB and the IF-filter is too narrow for
DRM.

Fredrik