Hi Steve, There is no documented method to set a lower TUNE power when a non-Elecraft external ATU is used or when no external matching unit is present. The TUNE button on the K2 keys the transmitter at the requested TX power set by the POWER control, e.g. 100 watts, in the absence of a connected Elecraft ATU.
To fool the K2 into using a lower TUNE power setting than the POWER control displays, one would need to reverse engineer the AUXBUS protocol to make the K2 think an Elecraft ATU is connected. The K2's MCU would have to communicate with the spoofing unit in such a way as to make it appear that the spoofing unit is an Elecraft ATU. The AUXBUS protocol has not been made publicly available to the best of my knowledge. 73, Mike, K8CN ______________________________________________________________ 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