[R-390] overmodulation

Bob Camp ham at cq.nu
Wed Jun 27 21:12:16 EDT 2007


Hi

Are you reasonably sure the original signal is ok? The guy on the mix  
console may have had an extra beer or two ....

Bob
KB8TQ


On Jun 27, 2007, at 9:01 PM, Gene Dathe wrote:

> Hello all;
>
> I have noticed an overmodulation problem that has me stumped.  When  
> listening to the MN Twins, when they get a hit and the crowd noise  
> rises in the background, the announcer's voice get distorted and  
> over modulates.  Hard to follow the game and the play at the plate!  
> Usual AM talk show fare like Rush Limbaugh is perfect. The AGC is  
> working fine, I've tried manipulating ALL the controls with no  
> audio effect; reducing the RF has no effect, AGC or MGC. Might this  
> be an AF problem, something a push pull system might avoid?
>
> Thank you in advance for your valuable time.
>
> 73 de NAØG  Gene
>
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