Brian, Yes, it uses inhibit feature of K3. No delay on return to RX. I always use PTT foot switch or computer PTT (which has programmable delay) so no issues with chopping part of CW character.
73, Igor UA9CDC ----- Original Message ----- From: "Brian Alsop" <[email protected]> Cc: <[email protected]> Sent: Tuesday, October 30, 2012 2:21 AM Subject: Re: [Elecraft] K3 and sticking amp T/R relay > Igor, > > Just what does this delay? > > Does it inhibit RF output from the K3 for 30 ms? If so it may chop > parts of CW characters. > > The formula T=1200/W gives the dot length for a given WPM (W) > At 40 wpm, one dot is 30 ms. > > Does it delay return to RX? > > 73 de Brian/K3KO > > n 10/29/2012 19:54, Igor Sokolov wrote: >> I had similar problem. >> The solution I use is the external TX delay circuit of 30 ms >> (adjustable) that utilizes 1 FET transistor, capacitor and couple of >> resistors. It is built into connector body and plugs into ACC socket of >> K3. Now my T/R relays in the amp are safe. >> >> 73, Igor UA9CDC >> >> ----- Original Message ----- From: "briana" <[email protected]> >> To: <[email protected]> >> Sent: Monday, October 29, 2012 4:01 AM >> Subject: Re: [Elecraft] K3 and sticking amp T/R relay >> >> >>> Do this at the risk of QSD CW. Higher settings (>10ms) cause this. >>> The bad keying is independent of internal or external keyer. >>> >>> It is a bug that has never been fixed in the K3. >>> >>> 73 de Brian/K3KO >>> >>> >>> On 10/28/2012 3:23 PM, Don Wilhelm wrote: >>>> Gary, >>>> >>>> The config menu TX DLY parameter will change the time from keydown to >>>> the onset of RF. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 10/28/2012 4:09 PM, Gary Smith wrote: >>>> >>>>> My question for here is; if the amp is not properly sequencing with >>>>> the K3, what setting can I change within the K3 to provide more time >>>>> for the amp's relays to close before the K3 transmits? I remember >>>>> there was a feature to allow ms changes for QSK in the K3. How do I >>>>> find that option? And should I decrease the MS time in the K3 or >>>>> increase it to let the perhaps relay in the amp have time to close >>>>> first to avoid hot switching? >>>>> >>>>> >>>>> >>>> ______________________________________________________________ >>>> 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 >>>> >>>> >>>> ----- >>>> No virus found in this message. >>>> Checked by AVG - www.avg.com >>>> Version: 2012.0.2221 / Virus Database: 2441/5359 - Release Date: >>>> 10/28/12 >>>> >>>> >>>> >>> >>> ______________________________________________________________ >>> 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 >> >> >> >> ----- >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 2012.0.2221 / Virus Database: 2441/5361 - Release Date: 10/29/12 >> >> > > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2012.0.2221 / Virus Database: 2441/5361 - Release Date: 10/29/12 > > ______________________________________________________________ > 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
