> "One factor that affects IMD is power supply voltage variation under load. The standard PS cable that comes with the K3 drops several tenths of a volt at max power. Add that to power supply regulation and internal voltage drop in the K."
In addition to lowering the AWG size, I am using a Lambda linear supply with remote Hi-Z sensing terminals (A pair of #12 AWG for supply, and #22AWG for sense). The PS detects the IR drop at the load, then compensates for the duration of the IR sag back at the PS. It works quite well for CW and PSK, although I have not performed any tests to measure the Lambda's response time to the supply line IR drop. So, the sensing lines may or may not be keeping up with the instantaneous sag in order to be of any benefit in SSB TX mode. Paul, W9AC _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
