(13-11-2020, 07:01 PM)Panrock Wrote: One 'mistake' I can think of is that, since the strongest signals were on 42 MHz, they would have been right at the edge of the lower vision sideband and not very well received.
... which implies the strong signals, at least, would perhaps been better heard as audio tones over the sound receiver.
Now the EMI 702 (and 901) sets have a tunable sound receiver, quite selective, prone to drift, and based around a fairly low IF for a VHF receiver... (without checking) do I recall this is 1500 KHz?
Question: What is the pick-up frequency range of this receiver? Could the tuning knob have been twiddled and the 42 MHz jamming signals been picked up?
Steve







