Bill,
What is the results if you connect the antenna to the K3 (without the KPA500). Even though it may show a DC short, that may be only at the DC measurement. At RF, what is the impedance. An antenna analyzer measurement may be helpful in determining the actual impedance at frequency. Bottom line - if the antenna analyzer indicates something near 50 ohms resistive, either the K3 or the KPA500 should operate into it with no problem. Look for coax connections that are not tight - finger tight is not good enough for UHF connectors. What will be OK at low power levels may not be OK when the power is increased to 100 or 500 watts. 73, Don W3FPR On 8/27/2011 9:34 PM, Bill Drobnes wrote: > I am trying to temporarily use a 20 m Hamstick on my > Outbacker tripod. The base I am using checks out fine with > nothing attached. In other words, the top where the antenna screws in shorts > with the pin on the UHF connector on the bottom of the base and is isolated > from the tripod. When I connect a non-terminated coax to the base connector > everything continues to check out as above. However, as soon as I connect the > other end of the coax to ANT 1 of the K3, everything is shorted together (the > top where the antenna screws in shorts with the tripod) and the KPA500 shows > infinite SWR. The Hamstick folks couldn’t figure it out and HRO here in > Phoenix > was kind enough to exchange the Hamstick for another, with no effect. Any > ideas > and/or explanations? Thanks and 73, Bill N4IEZ / F4WAE > ______________________________________________________________ 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
