[AMRadio] RE Apache Audio Mods

Larry Szendrei ne1s at securespeed.us
Wed Dec 29 20:01:41 EST 2010


On 12/29/2010 6:37 PM, Al Perkins wrote:
> This is not about the Apache but a G-50. When I turn it on and turn up the volumne a loud squeal and vibration comes out of the speaker even though it tunes up OK. Any ideas?
>
>
> Zeke KA1KIX
>
Hi Al!

Could be lots of things:

1) Weak, dried out electrolytics making the decoupling ineffective 
between audio stages. Or some other unwanted audio feedback path has 
developed.

2) Transmitter section is being keyed without muting the receiver 
somehow (not being specifically familiar with the G50, I don't know if 
this is even possible with that particular radio).

3) Plenty of other possibilities that haven't occurred to me yet (but I 
know they're there!).

73,
-Larry/NE1S



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