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 [email protected] 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 > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/Audio-buzz-tp6994000p6994000.html > Sent from the Elecraft mailing list archive at Nabble.com. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
