I suggest using a vacuum relay at the antenna. I wouldn't want to switch a relay box even with a sequencer at a semi-QSK rate.
Vic K2VCO /4X6GP > On Dec 20, 2014, at 10:45 PM, Jim Miller <j...@jtmiller.com> wrote: > > I use and like QSK on my K3 but I'm now looking at detuning my 160 inverted > L to avoid reradiation into my beverages when in receiving. > > I'm looking at what it will take to do that and it appears that if the 160 > inv-L is just deselected by the remote DXE relay box it will just be an > ungrounded 1/4 wave which shouldn't present problems on 160. > > I could implement a sequencer in the shack to do this by interrupting the > relay select line that controls the 160 antenna on a per band basis but > that leaves the question of what to do about QSK since the relay is > specified to operate no sooner that 15mS. That will likely impact the clean > CW and be undesireable. > > I can decode the band info and get the info about whether it is in TX or RX > mode and probably inhibit the K3 until the delay has expired. > > But I'd need to kill QSK on 160 alone to do this. > > Is there a way to do QSK on a per band basis? > > 73 > > jim ab3cv > ______________________________________________________________ > 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 k2vco....@gmail.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
