Hello Alan, I had used a home built vacuum relay on 6m to switch between antennas, but the isolation was not good - possibly due to a problem with dirty contact in the old relay or something. Anyway, I built a very nice SPDT coaxial switch that will handle plenty of power up through 6m with low SWR, and you could easily do the same thing with a DPDT coaxial switch done the same way. In fact, mine was based on a design by WA4NFP for a durable, low loss DPDT switch to switch an amp in and out of the circuit.
You can put any type of connectors you want on it: http://www.bigskyspaces.com/w7gj/relay.htm GL and I hope you find this information helpful. VY 73, Lance On 7/30/2010 1:09 AM, Alan D. Wilcox wrote: > Hello, > > The saga of my K2 in the upstairs office and the K3 downstairs in the > shop continues. > > Solution: > 1. Run coax from the K2 into the attic; run some red/blk zip cord up too. > 2. Chop the K3 coax going to the antenna and run the K3 end into the attic. > 3. Run the remaining end of the coax from the antenna into the attic. > 4. PL-259s to the 3 wires in the attic. > 5. Connect K2, K3, ant to coax relay. > 6. Zip cord to relay (12 vdc or 110 ac); other end gets power when I > turn on the K2 supply. > > I had a Dow-Key coax relay (just what I want) on my Viking II. Both long > gone. > > Anyone have one or something that'll do the trick? Any extra PL-259's > with sleeve for smaller coax? > > Many thanks! > Alan > > Alan D. Wilcox, W3DVX (K2-5373, K3-40) > 570-321-1516 > http://WilcoxEngineering.com > Williamsport, PA 17701 > > ______________________________________________________________ > 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 > > -- Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8, E51SIX, 3D2LR) P.O. Box 73 Frenchtown, MT 59834 USA QTH: DN27UB TEL: (406) 626-5728 URL: http://www.bigskyspaces.com/w7gj 2m DXCC #11/6m DXCC #815 Interested in 6m EME? Ask me about subscribing to the MAGIC BAND EME email reflector! ______________________________________________________________ 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
