Dave,
I wanted to run a possible solution past you.
I could prevent the rig from being keyed (by any method) during the
first couple of seconds that it's powered up. Instead, it could detect
this case, and display a repeating message (something like: "KEYLINE IS
ACTIVE") until you either remove the source of the keying or turn power
off.
Thoughts on this?
73,
Wayne
N6KR
Dave Hachadorian, K6LL 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.
---
http://www.elecraft.com
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