Yes large diameter cable is required if you want to keep the TX voltage high. I also replaced the Elecraft 12ga? supplied cable with 10 gauge when using the small switching power supply while traveling. I use 8 gauge at home since my cable is longer but it was tricky stuffing this into the tiny PowerPole connector.
John KK9A Jim Brown said: Fri Mar 10 01:42:27 EST 2017 On Thu,3/9/2017 9:29 PM, George Thornton wrote: > From what I am learning the K3 needs a strong, stable power supply to be reliable. ANY ham rig needs that. :) At 100W, the K3 draws about 20A keydown. Do Ohm's Law on the wiring between the power supply and the K3. The simple answer is short, fat copper, straight from the supply to the radio. AND good quality connectors. Those power distribution strips can easily drop a volt or so. I run #10-2 to my radios. 73, Jim K9YC ______________________________________________________________ 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]

