If you want to see a remote antenna switch that grounds all un-selected antennas, take a look at http://www.qsl.net/ei7ba/remote.htm It is quite easy to homebrew your own remote antenna switch.
73, Don W3FPR On 2/18/2012 6:26 PM, Don Wilhelm wrote: > Clint, > > Not OT at all. Many remote antenna switches do it "the easy way", and > use SPST relays to switch in the selected antenna - there is no way with > that type relay to ground the antennas that are not currently selected. > > So yes, some type of static discharge device would be beneficial across > each antenna connector to bleed off static. Usually a 100 uHy choke (of > sufficient current capacity for your power level) or a 2 or 3 watt > carbon resistor in the range of 3000 to 30,000 ohms will provide the DC > path to bleed off any static charge. > > Imagine your antenna with a static charge - then you select that antenna > - suddenly your transceiver is subjected to whatever charge was on the > antenna. Sometimes OK, but other times, not so good. > > 73, > Don W3FPR > > On 2/18/2012 5:51 PM, Clint wrote: >> OK, this is OT, sort of. It will be connected to my K3 so.. >> >> I just bought a remote mast mounted antenna switch (Ameritron RSC-8V). It >> comes with the center conductor electrically floating when the port is OFF. >> It seems to me I would be better off (safer) if the center conductor was >> grounded (or had a gas discharge tube or choke or resistor or??? when OFF. >> >> What do ya think? >> >> One thing is for darn sure, I am going to paint the cruddy polystyrene box >> and steel brackets (with "Rust Bullet" FYI), clean off the flux and coat >> the PC board before it sees the costal weather! Caulking will be in order >> also. Salty rain and spray are nasty even 5 miles in. >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
