[Elecraft] Poor Transmit Audio USB

[Joe Subich, W4TV]

Do you have the 8 pole or 5 pole filter?  Have you updated 
firmware recently?   I'd bet you have a 5-pole roofing filter 
and the offset is not correct (set to zero or even has the 
wrong sign).  

The five pole filter offset is on the label on the side of 
the filter (if you can see it).  If you have a kit-built 
unit, you should have recorded the filter offset in the 
manual as part of the build process.  

73, 

   ... Joe, W4TV 
   



> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Alex & La Nell
> Sent: Saturday, June 13, 2009 5:38 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Poor Transmit Audio USB
> 
> 
> 	I have a K3/100 ser. # 1485 that has very thin audio, 
> my first guess is that the filter went bad or is very far off 
> original freq. On upper sideband it has only highs and sounds 
> very restricted (pinched) tried adjusting the transmit BW 
> settings. On lower ssb my close friends state it sounds ok, 
> but not great like the old ts 2000 sounded like. The audio is 
> so restricted that it is very difficult for someone to 
> understand what you're saying. 
> 
> 	Will call factory on Monday morning and see what they 
> say, in the mean time anyone else have this kind of problem. ?
> 
> Thanks 
> Alex kr6g
> 
> Alex and La Nell Alexander
> Alexander Enterprises
> Quincy, Ca 95971
> 530-281-6411
>