[Elecraft] K3 keying at turn-on

[Vic K2VCO]

Ken,

This sounds like your K3 is configured for DTR keying. Go to the CONFIG menu and look for 
the PTT-KEY parameter. If it is set for DTR keying, then when the computer boots, its BIOS 
raises the DTR line a few times which keys the radio.

Unless you are normally keying your radio this way, you should set the menu parameter to 
OFF OFF.

I find it easier to turn it off between contests than to remember to go into test mode or 
unplug the cable every time I boot the computer.

On 4/1/2010 11:35 AM, Ken Kopp wrote:
> Perhaps related ....
>
> I don't see the short output of RF that's being described.
> (S/N 56 w/latest firmware).
>
> I -do- note seven evenly-spaced +/- one second full power
> key-ups as my computer boots up when I forget to unplug
> the USB cable from the radio ... or initiate MODE/TEST.
>
> I have no contest or control software running that would
> initiate these seven key-ups, so I assume this is the utility
> polling the radio as it is launched during the computer's
> boot-up.
>
> I do have a Tokyo Hi-Power PA, but it's seldom on and
> wouldn't be turned on -before- the K3 is turned on.
>
> 73! Ken Kopp - K0PP
>         ElecraftCovers at rfwave.net
>         http://tinyurl.com/7lm3m5


-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/