"Radium" wrote in message
ups.com...
Hi:

What is the minimum amount of photons-per-second needed for a 150 KHz
AM radio carrier wave to transmit audio signals? Around 20,000-photons-
per-second?


Thanks,

Radium

you should have stayed with the alt.sci or sci.physics groups, you don't
know what you are getting your self in for here!