2m receive converter.

40Mhz crystal oscillator using 120Mhz harmonic mixed with 144 receives on 24Mhz... also the 80Mhz harmonic with 104Mhz gives 24Mhz... so I can only listen to the over powered FM broadcast transmitters...

I think it is due to input filter and oscillator filter... will check for this on the future.

Have a look: