am radio

Hi all! I was hoping to find some help on this forum - my dad was a big time SW Dxer - back in the day even helped start a ppl on 160meters... anyway, he died this past year and to 'honor' him I'm trying to help my son just DX on AM radio... we live far away from my hometown but close enough in...

I have noticed that some HF Frequencies are getting submited to the database as AM. I know that they are not AM Mode and are in fact USB. What is the main reason HF, AM Radio and FM Radio frequencies are not allowed ? I know for a long time Ham Radio FM and UHF Repeater Frequencies were only...

Brussels Sprout Questions? There's a Talk Show for That - WSJ.com

alright so i've got this idea for a guitar effects pedal where the signal goes through a crystal oscillator at 1mhz and in the same pedal a reciever is housed to pick up the same frequency but use a tuner (variable capacitor or pot) and a volume pot to mess with the signal. im new to circuitry...