[Amps] Maximum RF output in practical application: 4-250A

[Tom W8JI]

> On the contrary, Joe.  I can prove humans can tell the 
> difference between certain letters, words, and sounds with 
> 4k of audio that you can't with 2.5k.

That's certainly true with very high S/N ratios on clear 
frequencies, assuming the people have normal hearing and 
speech.

I can prove the best S/N ratio and readability when signal 
levels have less than 20dB S/N ratio occurs when SSB signals 
are between 2 and 3 kHz wide, and that the most effective 
weak signal communications occurs with about 2kHz bandwidth.

73 Tom