setting K3 drive level to KPA500

[Dick Frey]

I am bringing up a new (to me) K3.

What makes the drive level track between bands without the nasty ALC
overshoots? The drive from the K3 sometimes also takes a while to settle
down when coming up on a new band. This drives me crazy in changing bands
and modes while chasing W1AW/# stations.

What to invoke to make the output of the K3 go back to 100W when the KPA is
off or stby? It presently stays at the ~30W needed for 500W out. Is this a
KPA or K3 issue?

--
Dick - K4XU
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[Cady, Fred]

Hi Dick,
If you have the "15-pin" cable that comes with the KPAK3AUX cable set, you can set the K3's CONFIG:PWR SET to PER BND and that will do what you want to do.
Have a look at the intro_guide at http://www.ke7x.com/home/k-line-introduction-and-set-up-guide

The slow to come up to power might be caused by how you have your ALC set up.  It is not used to control power.

Cheers,
Fred KE7X

"The Elecraft K3: Design, Configuration and Operation 2nd ed"
"The Elecraft KX3 - Going for the summit"
www.ke7x.com<http://www.ke7x.com> or www.lulu.com<http://www.lulu.com>
KPA500 and KAT500 Quick Set Up Guide
http://www.ke7x.com/home/k-line-introduction-and-set-up-guide
(Coming soon: "The Elecraft KPA500 and KAT500 - the K-Line Dream Station")

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Dick Frey
Sent: Sunday, March 23, 2014 10:32 AM
To: Elecraft list
Subject: [Elecraft] setting K3 drive level to KPA500

I am bringing up a new (to me) K3.

What makes the drive level track between bands without the nasty ALC overshoots? The drive from the K3 sometimes also takes a while to settle down when coming up on a new band. This drives me crazy in changing bands and modes while chasing W1AW/# stations.

What to invoke to make the output of the K3 go back to 100W when the KPA is off or stby? It presently stays at the ~30W needed for 500W out. Is this a KPA or K3 issue?

--
Dick - K4XU
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[AC6SL]

> What to invoke to make the output of the K3 go back to 100W when the KPA is
> off or stby? It presently stays at the ~30W needed for 500W out. Is this a
> KPA or K3 issue?

If you have the Aux Cable to connect the K3 to KPA500, then in the K3
Config menu, PWR SET PER_BAND. While still in that menu, the "1" key
locks/unlocks the Power knob, and it notices whether the KPA500 is in
Operate, or not.

I set my K3 to be 100W on each band when KPA500 is not in Operate, and
the appropriate level to drive the KPA500 when it is in operate.

This is adequate for normal operations, but I do wish that the Tune
button would still function, even when ATU is in Bypass mode.

-John AC6SL
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[Jack Brindle-2]

Others have answered the power-per-band issue. If you are seeing power overshoot from the K3 then you should do a recalibration of the K3 power.

JackB, W6FB

Sent from my iPad

> On Mar 23, 2014, at 9:31 AM, Dick Frey <[hidden email]> wrote:
>
> I am bringing up a new (to me) K3.
>
> What makes the drive level track between bands without the nasty ALC
> overshoots? The drive from the K3 sometimes also takes a while to settle
> down when coming up on a new band. This drives me crazy in changing bands
> and modes while chasing W1AW/# stations.
>
> What to invoke to make the output of the K3 go back to 100W when the KPA is
> off or stby? It presently stays at the ~30W needed for 500W out. Is this a
> KPA or K3 issue?
>
> --
> Dick - K4XU
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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