The K3 has a TX INHibit input on the ACC connector that will inhibit RF for any length of time you desire. Drive it with an output from your sequencer that indicates "sequence completed". See the manual for details.
73, Don W3FPR John Lemay wrote: > It looks like "TX Delay" is variable from 8 to 20mS. Perhaps this range > could be increased in the software ? > > John G4ZTR > > -----Original Message----- > From: elecraft-boun...@mailman.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Giulio Pico - IW3HVB > Sent: 08 January 2010 09:23 > To: elecraft@mailman.qth.net > Subject: Re: [Elecraft] [K3] Elecraft[K-3] K144XV > > IMHO an external sequencer is still the best way to have a foolproof > system. Running QRO with a mast mounted lna isn't a good idea if you > don't have one. 20 ms is not enough for sure, as most of the QRO coax > relays have a switching time of that amount or even more.... > My sequence timing is around 250 ms, in four steps, including LNA, PA, > Driver, and RTX/XVTR. > > 73 de Giulio IW3HVB > > AD6XY ha scritto: > >> snip >> >> I am still worried about the diode switching, 2m specific PTT outputs and >> delays. I assume the usual 20mS delay option is there in the menu like all >> the other bands. This is not quite long enough when you are sequencing an >> amplifier and a pre-amp as there is more to switch than just the coaxial >> relays. >> >> > > ______________________________________________________________ > 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 > > __________ Information from ESET NOD32 Antivirus, version of virus signature > database 4752 (20100107) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > > > __________ Information from ESET NOD32 Antivirus, version of virus signature > database 4752 (20100107) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.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 > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.725 / Virus Database: 270.14.129/2605 - Release Date: 01/07/10 > 02:35:00 > > ______________________________________________________________ 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
