[AMRadio] Bandwidth

Geoff/W5OMR w5omr at w5omr.shacknet.nu
Sun Jul 20 22:29:13 EDT 2003


> By the Way, just how many DB down from 1500 Watts do they want
> the unwanted sideband energy?

30 to 60db down from the fundamental.  At least what's what the spurs have
to be reduced by.  I just read that in the RFI section on the Awful Racket
Raising
League's website.  (www.arrl.net)

> There is no such thing as "no energy" in
> any spectrum!  I remember when Otis K5SWK was tuning an antenna using a
> grid dip meter and accidentally left it on.  It caused complaints later
> in the night when the 75 meter band opened up, from some fellows in
> another state.  That had to be less than 1 watt.  I have never seen one
> capable of even putting a glimmer on a #47 bulb.





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