alt Hacker NewsYou can pick up a pretty reasonable amount of radio signal with the right length of wire and a properly tuned LC circuit tank.
I didn’t believe it until I tried it, but it’s a surprisingly good first pass at an FM frontend.
You can pick up a pretty reasonable amount of radio signal with the right length of wire and a properly tuned LC circuit tank.
I didn’t believe it until I tried it, but it’s a surprisingly good first pass at an FM frontend.
If you're into receiving low frequency time signals, you can receive them directly with nothing more than a piece of wire connected to the mic input of a modern sound card (via a capacitor). Sample at 192kHz and downsample in software (simplest: mix with a similiar frequency sine and listen to the result, say 59kHz for WWVB or MSF).