I did some checking today on my voltage to the K3 using two different routes.
I am using an Astron RS-35m power supply. It was tuned up to output slightly under 14v. Normally it mediates through a PG40s backup and switching device, connected to three 140AH backup batteries as well as the power supply. When I connect the K3 power through the PG40S distribution panel I read 13.3 volts at the K3. This drops significantly when I transmit, going down to under 12 volts. I then direct-wired the K3 lead to the Astron using ten gauge wire and a relatively short lead. Power at the K3 then reads 13.8 and drops only to 13.7 during transmit. Since I had failures attributed to erratic power supply, my conclusion is the K3 should only be run via a short, large gauge lead direct to a power supply in good order. ______________________________________________________________ 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 Message delivered to [email protected]
