Thanks for both comments. I am very embarrassed by this, and want to make sure I don't do it again!!
I do have the sub receiver, which as far as I know was off during that time (not really sure of anything right now). My last contest contact was at 1405, next was 1538. During that time I did stop for breakfast, but that seems a longer delay than I remember. So quite possible I was calling in the period after 1405, to no available for maybe 20 minutes. (I must have thought my propagation at 8AM Colorado time was real bad!). I have never had the problem before, and didn't have it later. So best guess is that I inadvertently selected split (with sub off). And transmitted on VFO B. Then when I got back from breakfast, somehow the split got turned off. My K3 is s/n 14xx, which has all factory mods that I know of. -- View this message in context: http://elecraft.365791.n2.nabble.com/Operated-K3-SSB-in-CW-band-not-sure-why-tp6097259p6098449.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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

