I've always wondered why TEST mode wasn't persistent - if I put the K3 into TEST to prevent inadvertent keying, it comes back up on next powerup in normal mode.
Bob NW8L On Fri, Jun 27, 2008 at 9:57 AM, Dave Hachadorian <[EMAIL PROTECTED]> wrote: > I've got my K3 set up for cw on Field Day with a laptop usb port driving a > usb to serial converter. Rig control and cw keying are done over the serial > cable, using the K3's built-in ability to send cw from pin 4(?) of the > rs-232 cable. > > Everything works fine, but I got quite a scare when I turned on the K3 and > it came up keyed-down 120 watts into no antenna. It seems that if the > laptop is not running the logging program, rs-232 pin 4 can very well be in > a key-down state. I don't see any way to prevent this event from happening > again, except to unplug the rs-232 cable, turn the rig on, make sure vox is > off, turn off the K3, plug in the rs-232 cable, and then turn the K3 back on > again. > > Once it happens to you, you get gunshy about turning the rig on with rs-232 > connected. Maybe there could be some sort of inhibit to prevent this from > happening? Or maybe someone can suggest an easier way to prevent this from > happening. On my old TS-850, there was an actual switch to disable vox, and > I always disabled vox before turning on the rig. > > My permanent setup back home uses LPT keying, so I can leave the computer > key jack unplugged. > > Thanks. > > Dave Hachadorian, K6LL > Big Bear Lake, CA > _______________________________________________ > 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 > _______________________________________________ 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
