Oh okay.
biasing the diode with a battery to offset the losses sounds like a good idea. So then it makes a diode into an active component!
I'm not sure if that link you gave to the receiver with the transistor with no power supply is a very good idea. I think if its already using a transistor why is it so hard to have a power supply for it and if you have a power supply then it will amplify much better and the antenna doesn't have to be as long and you don't have to be as close to the stations.
Well so what is going on here in this audio file I uploaded to YouTube that I recorded today with a Fast Track M-Audio interface connected to my guitar amp and my guitar amp connected to my guitar with the gain and volume turned all the way up on everything? My guitar amp is being driven to oscillation? It sounds like the oscillatory frequency has a beat every half second. If I disconnect the antenna, the beat still occurs at the same volume! So the beat is not RF and it rather is being generated by my guitar amp.
It seems like when I turn up the volume to a level hoping to make the voices intelligible, it makes it even worse because now at the wave peaks of the voices my guitar amp is beeping on and off when it catches some voices.
How can this problem be solved since I want to hear voices, not voice amplitude beeping?
And how can the problem be solved to remove the annoying beat that the guitar amp is apparently generating when it is at full gain and full volume when my guitar is at full volume?