I would vote not to make Test mode persistent. While I find it very useful,
it can be a trap for an inexperienced K3 user, to whom it might look like
the radio simply isn't working. There is no indication that the radio is in
Test mode, other than the failure to transmit.
73, andy, ae6y
----- Original Message -----
From: "Bob Cunnings" <[EMAIL PROTECTED]>
To: "Elecraft Reflector" <[email protected]>
Sent: Friday, June 27, 2008 9:00 AM
Subject: Re: [Elecraft] K3 Key-down on power-up
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
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