K3 Suggestion

[Jim Garland]

This may have been covered before, but I'd really like the K3 to allow band-specific power settings. Since there's no provision for amplifier ALC, it would be helpful to set the power output on a band-by-band basis. In other words, if an amplifier takes 40Watts drive on 40m but 60 Watts on ten meters, one could adjust the power output on each band once and then have the K3 remember the settings. Solid state amps, especially, often have frequency-dependent gain.

73,

Jim W8ZR
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[Iain MacDonnell - N6ML-2]

4CX250B wrote:
> This may have been covered before, but I'd really like the K3 to allow band-specific power settings. Since there's no provision for amplifier ALC, it would be helpful to set the power output on a band-by-band basis. In other words, if an amplifier takes 40Watts drive on 40m but 60 Watts on ten meters, one could adjust the power output on each band once and then have the K3 remember the settings. Solid state amps, especially, often have frequency-dependent gain.

Hi Jim,

Set "CONFIG:PWR SET" to "PER-BAND".

HTH,

     ~Iain / N6ML

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[Dick Dievendorff]

Does CONFIG:PWR SET to the "PER BAND" choice meet your needs?

Dick, K6KR


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of 4CX250B
Sent: Monday, January 26, 2009 3:55 PM
To: [hidden email]
Subject: [Elecraft] K3 Suggestion

This may have been covered before, but I'd really like the K3 to allow
band-specific power settings. Since there's no provision for amplifier ALC,
it would be helpful to set the power output on a band-by-band basis. In
other words, if an amplifier takes 40Watts drive on 40m but 60 Watts on ten
meters, one could adjust the power output on each band once and then have
the K3 remember the settings. Solid state amps, especially, often have
frequency-dependent gain.

73,

Jim W8ZR
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[Don Wilhelm-4]

Jim,

Per Band Power Control has been in the firmware since MCU 1.99/DSP 1.76
(June 4, 2008).
If you are using older firmware, you will have to upgrade - you should
find a menu entry for CONFIG PWR SET - set the parameter to PER BAND.

The K3 does have ALC input provisions,  It was positive going ALC which
did not work with most amplifiers.  There is a mod on the Elecraft
website to change that to negative going ALC.  Please observe the
informational items about the use of ALC, it is NOT intended to be used
as a power limiting mechanism, and driving an amplifier into ALC will
create undesirable signal compression, distortion and splatter.

73,
Don W3FPR

4CX250B wrote:

> This may have been covered before, but I'd really like the K3 to allow band-specific power settings. Since there's no provision for amplifier ALC, it would be helpful to set the power output on a band-by-band basis. In other words, if an amplifier takes 40Watts drive on 40m but 60 Watts on ten meters, one could adjust the power output on each band once and then have the K3 remember the settings. Solid state amps, especially, often have frequency-dependent gain.
>
> 73,
>
> Jim W8ZR
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[Jim Garland]

________________________________________
From: Dick Dievendorff [[hidden email]]
Sent: Monday, January 26, 2009 5:09 PM
To: 4CX250B; [hidden email]
Subject: RE: [Elecraft] K3 Suggestion

Does CONFIG:PWR SET to the "PER BAND" choice meet your needs?

Dick, K6KR

It does indeed!  I missed that in the config menu.  Many thanks, and sorry for wasting the bandwidth.

Jim W8zr
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