I want to buld a simple FM receiver to pick up the output of a UHF radio mic in the 838 - 870MHz band.
(Rationale: our choir conductor uses a radio mic which feeds into a speaker which is completely inadequate to cover the whole choir, especially given that my hearing is no longer as good as some people's.)
I could just purchase a used matching UHF radio mic receiver but that would be £50 - £150, and the upper end of that range for a badypack one. It must be possible to do something much cheaper.
Very cheap FM radio receiver chips are available for the 100MHz broadcast band but none of them (to my knowledge) stretch to UHF. I've thought of front-ending such a chip with a prescaler but haven't been able to find anything suitable. I tried a USB DVB-T module with a Raspberry Pi to make a simple SDR, and it worked well except that the latency made it unuseable.
Are there any other options anyone can think of?
(Rationale: our choir conductor uses a radio mic which feeds into a speaker which is completely inadequate to cover the whole choir, especially given that my hearing is no longer as good as some people's.)
I could just purchase a used matching UHF radio mic receiver but that would be £50 - £150, and the upper end of that range for a badypack one. It must be possible to do something much cheaper.
Very cheap FM radio receiver chips are available for the 100MHz broadcast band but none of them (to my knowledge) stretch to UHF. I've thought of front-ending such a chip with a prescaler but haven't been able to find anything suitable. I tried a USB DVB-T module with a Raspberry Pi to make a simple SDR, and it worked well except that the latency made it unuseable.
Are there any other options anyone can think of?