tuned amplifier with envelope detector

[kaveh]

I am looking for a receiver circuit in vhf band 108-118Mhz with AM modulation ,if there is any person who has worked in this field ,I would be grateful if he or she inform me.

thanks alot.

 

[zachtheterrible]

Are you looking to receive aircraft signals?

This superregen circuit will work perfectly: https://jbgizmo.com/page23.html

In this article it is used as a tracking receiver, but it works just fine as a radio receiver.

 

[Nigel Goodwin]

Are you looking to receive aircraft signals?

This superregen circuit will work perfectly: https://jbgizmo.com/page23.html

In this article it is used as a tracking receiver, but it works just fine as a radio receiver.

You shouldn't use a superregen for listening to aircraft band!, it will cause interference to the aircraft! - if you want to listen to aircraft band you should use a superhet.

 

[stevez]

Ramsey Electronics, among other suppliers, makes a kit for the aircraft band. Several editions of the ARRL Radio Amateur's Handbook have such a receiver described though what's decribed may be super-regen so the cautions offered by Nigel might apply.

 

[Nigel Goodwin]

The Ramsey kit is a dual-conversion superhet, I have a 2M version I built years ago.