[R-390] FW: Troubleshooting Question

[Les Locklear]

If it does have the Lankford mod, simply back off the rf gain a tad.

Les Locklear
Gulfport, Ms.

Professional Curmudgeon & Equal Opportunity Annoyer

----- Original Message ----- 
From: <w5or at comcast.net>
To: <r-390 at mailman.qth.net>
Sent: Wednesday, December 21, 2005 8:04 PM
Subject: [R-390] FW: Troubleshooting Question


> Forwarded for Tom who is having posting problems.  
> Replies should go to the list or to
> Tom mailto:r390a at bellsouth.net
> 
> __________________________________________________________________
> 
> Troubleshooting Quiz.  (quiz?)
> 
> One of the radios in the stable an AGC problem.  On strong AM  
> signals, depending on the modulation, it gives me an an AGC  
> response.  On certain types of music/voice - I listen to talk radio  
> quite a bit - it clips on peaks, very quickly dumps AGC, momentarily  
> increases gain then quickly settles back to where it was.  Again,  
> this only happens with certain voice types, it doesn't happen with  
> most types of music, it usually doesn't happen with rapid Spanish  
> speech.  Do I really have a problem, or does this radio have Dallas'  
> mod installed?  It seems to copy SSB very well compared to the other  
> radios.
> 
> I've not removed the dust covers nor pulled the IF deck to confirm  
> this, but monitoring the AGC line shows my ears are correct. I've  
> only used this radio a few times since I've had it - and only on the  
> hand bands.  I don't believe I've installed the Langford mod in any  
> of my other radios, so I'm not familiar with it's behaviour on strong  
> AM.
> 
> Merry Christmas All!
> 
> May Santa leave each of you a Helena Rubenstein
> 
> Tom NU4G
> 
> 
> 
> 
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