[Elecraft] Re: K3 Key-down on power-up [Solution?]

[wayne burdick]

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.


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