[Elecraft] Audio buzz

[Eric Swartz - WA6HHQ, Elecraft]

Hi Allen,

Are you running a battery charger in parallel with the battery while 
operating? That can frequently cause buzz. You might try it with the 
charger off-line if so.

While anything is possible, its pretty difficult for the radio itself to 
create the buzz you are hearing in RX and TX. If you are still stumped, 
please contact k3support at elecraft.com and they will help you figure out 
what's happening.

73, Eric  WA6HHQ

---
www.elecraft.com


On 11/14/2011 12:39 PM, N5AG wrote:
> K3 #3547 has developed a buzz on receive and transmit. It will very in
> rapidity by varying the supply voltage from a high, 14.1 volts (fast buzz),
> down to 12.4 volts, as low as I can go on a fresh 12 volt battery supply
> (slower buzz). It still receives audio transmissions and I have been told it
> is noticeable on transmit as well. Audible on all bands and modes.
>
> This radio was repaired by Elecraft for "lightning damage" July 23, 2010
> Invoice #73797 and has worked flawlessly till now.
>
> Any help before I package it up for Aptos?
>
> Allen Griffith...N5AG
>
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