My K3 also makes a clicking sound with keying, but it's extremely faint; I have to put my ear in physical contact with the rig to hear it. That said, I don't think it's a relay. I suspect it's current going through an inductor or transformer causing the windings to move.
73 -- Joe On Feb 4, 2009, at 2:21 PM, Steve Ellington wrote: > AH HA...See...I told you so. I bet they all do it and you guys are > just not > listening. Where's the Elecraft experts? They should know if a relay > is > supposed to be operational when keying. Maybe I'm just sensitive to > such > sounds. I've had dozens of people try to tell me that TenTec rigs > don't have > relays but I can hear them from 3 ft. away! > Steve Ellington > n...@carolina.rr.com > ----- Original Message ----- > From: "Jessie Oberreuter" <joberreu-elecr...@moselle.com> > To: "Doug Faunt N6TQS +1-510-655-8604" <fa...@panix.com> > Cc: "Elecraft mail list" <Elecraft@mailman.qth.net>; <d...@w3fpr.com> > Sent: Wednesday, February 04, 2009 3:03 PM > Subject: Re: [Elecraft] K3: Relay noise? > > >> >> My K3 makes a very quiet relay like keying noise as well. Been >> meaning to chase it down, but haven't had the time. There was once a >> suggestion that it could be a protection circuit due to high SWR, but >> there's no reason why that should be happening. I haven't tried >> disconnecting the speaker just to make sure it isn't an electronic >> artifact, but it sure sounds mechanical, and occurs even with >> headphones, >> volume, and power turned all the way down. >> >> >> >> On Wed, 4 Feb 2009, Doug Faunt N6TQS +1-510-655-8604 wrote: >> >>> There's a relay that switches with mode change, CW/Data to SSB/AM. >>> >>> 73, doug >>> >>> X_CMAE_Category: 0,0 Undefined,Undefined >>> Date: Wed, 04 Feb 2009 10:29:07 -0500 >>> From: Don Wilhelm <w3...@embarqmail.com> >>> >>> Steve, >>> >>> No relay for either keying or T/R switching - it is all electronic. >>> >>> 73, >>> Don W3FPR >>> >>> Steve Ellington wrote: >>>> Is there a mechanical relay that follows keying? I've had my K3 for >>> nearly a >>>> year and didn't notice any relay noise until lately. I know the >>> antenna TR >>>> is done by pin diodes but I can now hear the faint click of a small >>> relay >>>> that wasn't there before. I'm using ver. 2.8 >>>> Steve Ellington >>>> n...@carolina.rr.com >>>> >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > > > -------------------------------------------------------------------------------- > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.0.233 / Virus Database: 270.10.17/1934 - Release Date: > 02/03/09 > 17:48:00 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
