I caught a couple of questions regarding leaving the power on, on a K2. #0771 has been powered on, almost continuously, for about 5 years, and had plenty of on-time before that. It is run from a bank of three paralleled 100 amp-hour AGM batteries, floated on a Samlex SEC-1223 (that's a trickle charger for a 300Ah deck!). Most of that time, it's been on 40CW with FL2 on; mine's at 1.10 kHz width, 610 Hz center.
The radio, and other '12V' shack accessories such as lighting, simply do not go off. The desk light filaments will fail before my K2 is likely to, and, in all this time I've not had so much as a suggestion of trouble. If I was having the problem of mystery filter mode changes, I'd suspect the switch itself. The contacts might be 'bent' together and just a temperature gradient might couase them to 'bump' and activate the debounce routine in the PIC. It is easy enough to test this idea (for me, anyway) ... just unsolder the switch and leave the power on for a while. If the filter mode changes without the switch in place, then look elsewhere (such as an inadvertant low-impedance path from that line to something else). Otherwise, simply put a new switch in (you've already removed the old one). Steve KZ1X/4 PS: saw Eric, Lerma, and others at the Elecraft booth in Orlando. They were right around the corner from Icom, across from TenTec, and on the opposite side from Flex Radio. Just steps between my favorite toys! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
