Hi Anvart,
thanks for your reply. I'm sorry I didn't explain well what I was thinking/testing/trying to understand. Actually, it was this part of Stiebler's post:
Each receiver simply detects any radar that was introduced before the date of introduction of the radar receiver. Add any radar receiver late enough, and it will detect everything.
I will run some more tests and see what's the difference between the several radar-warning receivers. I have the feeling that all receivers can detect all radar signals, but at different distances, with different probabilities,... this would explain why I'm never surprised by an aircraft after having installed the Metox device

The famous failure of the Metox after the cm radar was introduced seems to be missing in SH3
Regards, LGN1