Hi Ron and the group, I took the KX1 out yesterday for more field testing. This time, I wrapped with a torroid the 6" unshielded lead from the external battery holder. The idea here was that RF was getting into the 6" battery lead and somehow the dirty DC was tripping the ATU controller.
Well, at first, it seemed like the problem was solved. But after about 1 hr of having the KX1 on, I started getting the problem again. (The problem with the ATU switching from TUN to CAL by itself when I start transmitting.) This time, I only saw it on 30M. But it was intermittent: when it started happening, I shut the rig off, turned it back on, switched bands, and then I wouldn't get it for a while. Again, I can make this happen when transmitting into a 300W 50 ohm dummy load. It only happend when I am on my external battery pack at 4W. I went to Halted and got a beefier power cord with a built-in torroid (from a computer power supply), and I plan to ruggedize my battery supply. Perhaps the dinky leads from the external battery to the KX1 couldn't handle the current? In any case, the problem still exists. The only thing I can do to use the KX1 reliably is to not use my external battery pack. Thanks, Mike N9OHW --- Ron D'Eau Claire <[EMAIL PROTECTED]> wrote: > Hi, Mike: > > No, you should *not* be seeing RF feedback > delivering power into a good 50 > ohm dummy load, external ground or not! __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ 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
