Re: [Elecraft] Connect K3S to Non-elecraft Amp (WU6R)
On 10/18/2020 5:51 PM, Steve Sykes wrote: > You should also set a TX delay of at least 10 ms in the K3S, so of the solid state amps require more, maybe 20 ms That depends a LOT on the amp. I'd RTFM for the amp before setting that much delay, which is usually limited by antenna TR switching. TenTec made one (maybe the first) solid state ham amp, and all of their amps used vacuum relays for antenna switching. They switched in less than 8 msec. K4XU, designer of TenTec's tube amps later worked for Alpha. The 86 and 87A were the last he did for them. They used diode switching, which is very fast. And in bar conversation, he made a point of saying that he designed the RF section, not the control circuitry. I operated two of his TenTec Titan 425, bought used (their first legal limit tube amp) in my station for about 12 years of heavy contesting, until my purse got heavy enough to replace them with a pair of used 87As, and this past summer, one of the 87As became a spare for a KPA1500 (so I could get legal limit on 6M). Elecraft amps also use diode switching for antennas. 73, Jim K9YC __ 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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Connect K3S to Non-elecraft Amp (WU6R)
Thanks, Mark > On Oct 18, 2020, at 8:57 PM, Nr4c wrote: > > K3 key out to amp key in or PTT plus usual RF cable. No Alc. > > Sent from my iPhone > ...nr4c. bill > > >> On Oct 18, 2020, at 7:56 PM, Mark Wheeler via Elecraft >> wrote: >> >> How do I connect my K3S to a non-Elecraft amp? The amp has an ALC and PTT >> RCA connections. The K3S has PTT In and Key Out RCA connections. >> >> >> 73, >> Mark WU6R >> __ >> 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 >> Message delivered to n...@widomaker.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Connect K3S to Non-elecraft Amp (WU6R)
K3 key out to amp key in or PTT plus usual RF cable. No Alc. Sent from my iPhone ...nr4c. bill > On Oct 18, 2020, at 7:56 PM, Mark Wheeler via Elecraft > wrote: > > How do I connect my K3S to a non-Elecraft amp? The amp has an ALC and PTT > RCA connections. The K3S has PTT In and Key Out RCA connections. > > > 73, > Mark WU6R > __ > 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 > Message delivered to n...@widomaker.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 Message delivered to arch...@mail-archive.com
Re: [Elecraft] Connect K3S to Non-elecraft Amp (WU6R)
On 10/18/2020 4:54 PM, Mark Wheeler via Elecraft wrote: How do I connect my K3S to a non-Elecraft amp? The amp has an ALC and PTT RCA connections. The K3S has PTT In and Key Out RCA connections. Key Out to PTT on the amp. Do NOT use ALC -- it's a recipe for splatter and clicks. Always set amp power by adjusting power out on the transceiver. 73, Jim K9YC __ 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 Message delivered to arch...@mail-archive.com
[Elecraft] Connect K3S to Non-elecraft Amp (WU6R)
How do I connect my K3S to a non-Elecraft amp? The amp has an ALC and PTT RCA connections. The K3S has PTT In and Key Out RCA connections. 73, Mark WU6R __ 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 Message delivered to arch...@mail-archive.com
