This is what I use on all my receive antennas to protect the K3S sub-receiver and preamps.
https://www.dxengineering.com/parts/dxe-rg5000hd ARRAY SOLUTIONS makes a similar device. No need for slow relays or relay control cables. I might add that K3LR uses this device to protect his contest station radios. Mark, WB9CIF -----Original Message----- From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On Behalf Of John Simmons Sent: Wednesday, March 25, 2020 15:34 Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] T/R switch for 2nd Receiver K3S Vern, I did some research a while back, and came up with this: https://toptendevices.com/products/ab-station-selector/ It has the required isolation. -de John NI0K VernonJ wrote on 3/25/2020 10:28 AM: > I need a T/R switch for my second receiver which is using its own antenna. > Looked at the MFJ, but I don't think it is what I want. I am currently > looking at this for a keying circuit: > <http://elecraft.365791.n2.nabble.com/file/t396686/TR2_%282%29.png> > I am looking at this for the relay circujit: > <http://elecraft.365791.n2.nabble.com/file/t396686/TR1_%282%29.png> > Does this look viable to protect my 2d receiver from damage. Any > suggestions appreciated. Vern K2VJK > > > > -- > Sent from: http://elecraft.365791.n2.nabble.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 > jasimm...@pinewooddata.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 markmus...@outlook.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
