Bernie:

> there do appear to be some SW BC that 
> transmit up to about 15 KC.  

I seriously doubt that!   International shortwave
regulations require a flat response to 4500
Hz and a sharp rolloff above that.  I don't know
the required degree of attenuation at 5 kc
but I think 35 dB down is an accepted standard.

15 kc response would require a 30 kc receiver
bandwidth - most unlikely.

- JimT   W4ENE




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