[Elecraft] Antenna sharing question
Hi all, I have 6m on the K3, 2m on my XV144 and 4m to come. I use only 1 antenna with these, a Create log periodic. Is there a simple way to connect all three to the aerial without using a switch? 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Antenna sharing question
Ian, May I suggest coax relays. If you are using the K3 transverter band data outputs to activate the proper transverter, you can derive lines to activate the proper relay at the same time as the transverter. 73, Don W3FPR Ian Maude wrote: Hi all, I have 6m on the K3, 2m on my XV144 and 4m to come. I use only 1 antenna with these, a Create log periodic. Is there a simple way to connect all three to the aerial without using a switch? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
[Elecraft] Antenna sharing question
I have 6m on the K3, 2m on my XV144 and 4m to come. I use only 1 antenna with these, a Create log periodic. Is there a simple way to connect all three to the aerial without using a switch? Ian, The standard (no-switch) approach to connect a single broadband antenna to three separate transceiver ports that operate on different bands is to use a triplexer. A triplexer is something like three separate band-pass filters that take energy in separate bands and routes the energy to three separate physical ports. You can find triplexer products if you Google the term. Your issue is quite unique however with the 4m band. There may be a European triplexer source but since this band isn't available here the US manufacturers are unlikely to have a suitable product. You might be able to build your own triplexer but you may really be better off with relays automatically driven from a combination of K3 band decode and the 4M rig PTT circuit. I am assuming the K3 drives 6M and the XV144 on 2M and the 4M rig is separate transceiver. You might find a commercial diplexer that handles the 2M and 6M bands leaving you with a hardware switch or relay for 4M operation. Triplexers need to be built with substantial port-to-port isolation, this might prove difficult in a homebrewed unit, don't know for sure as I have never built one. If you live in an area with risk of lightning strikes then you have something else to add to the homebrew worries. eHam reviews a long list of antenna switches at: http://www.eham.net/reviews/products/2 Good luck. Mike Scott AE6WA Tarzana, CA K3/100 SN508 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] Antenna sharing question
Mike Scott wrote: I have 6m on the K3, 2m on my XV144 and 4m to come. I use only 1 antenna with these, a Create log periodic. Is there a simple way to connect all three to the aerial without using a switch? Ian, The standard (no-switch) approach to connect a single broadband antenna to three separate transceiver ports that operate on different bands is to use a triplexer. A triplexer is something like three separate band-pass filters that take energy in separate bands and routes the energy to three separate physical ports. Thanks Mike, I had wondered about the triplexer route but as you say, 4m is a problem. I would need to do a lot of research to build my own I think and even then it may not be satisfactory. I will go with a switch for now but possibly RF relays are the way to go. Many thanks to you and everyone for the reponses. 73 Ian -- Ian J Maude, G0VGS SysOp GB7MBC DX Cluster Member RSGB, GQRP K2 #4044 |K3 #455 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
