"Green Xenon [Radium]" wrote in message
...
Hi:

What would be heard on a 40 Hz AM DX receiver that uses the most
sensitive type of magnetic loop antenna? I doubt there would be any
hissing since that artifact would involve high-frequency sounds and a
40 Hz carrier cannot transport modulation-signals higher than 40 Hz
[violation of Nyquist theorem].

I also don't think power lines would have any perceptible affect on a
40 Hz receiver. In USA, the electric power has a frequency of 60 Hz --
in Europe, its 50 Hz. Since 40 Hz is below these power frequencies, I
doubt they would cause interference on 40 Hz. If I was receiving at or
above the power frequencies, I do think there would be disturbance but
not if below.

Would any interferences from outer space be perceptible on a 40 Hz AM
receiver? Galactic noise?


Thanks,

Radium

hey, its our favorite troll next to art back for more abuse... you should
really talk to art, he'll build you a 40hz antenna that you can aim like a
laser beam and see just what you can hear. why don't you ask the elf
researchers what they 'hear' at those frequencies.