Yes you have to modify the K3S. Check the archives, this was answered last month by Wayne. I reposted a portion of his answer below:
John KK9A You need to solder one end of an 1/8th-watt resistor to an SMD, and the other end to a via nearby. Or you could send it to us to do the work. Wayne N6KR From:Bob Novas Sat May 21 14:35:16 EDT 2016 Say, just for the sake of the argument, that I were to purchase a K-pad. If I want to power it from the K3S over the cable connected to the plug on the bottom of the K3S, do I have to modify the K3S to get power to the K-pad? If so, how much do I have to take apart? Would it make any sense to purchase any other stuff at this juncture because the K3S is going to be apart, like the KDV3? Thanks, Bob - W3DK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com