[BC] True wideband

Alan Alsobrook radiotech at bellsouth.net
Mon Oct 8 22:54:39 CDT 2007


I would imagine somewhere around 190 Khz, your first adjacent might 
notice and perhaps get a bit annoyed.  But then again, use a poorly 
capped M*-15 Harris exciter and you might be able to achieve the same 
effect in stereo up and down the dial.  :) It seems it got pretty much 
everything out to the 7th adjacent.. Talk about eliminating the 
competition!!

Tom wrote:
> additional signals within the "envelope".  As an experiment, some 3 AM, 
> run an audio proof on your FM - or your AM.  The OLD way - switch 
> everything out, or to bypass, test, etc. - Better still, go directly to 
> the transmitter's mono audio input.  BUT!!!  Don't stop at 15 kHz.  Take 
> it on out until you hit your -3dB point.  Note the frequency - on an FM, 
> you might be beyond the range of your audio oscillator! Certainly will 
> be the case if you use the composite input; using the mono audio input, 
> the limiting factor will be the response curve of the audio stages.
-- 
Alan Alsobrook CSRE AMD CBNT
St. Augustine Fl. 32086 904-829-8885
aalso at Bellsouth.net




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