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Re: K2: PSK-31 Power Settings

Posted by Don Wilhelm-4 on Apr 29, 2010; 2:14am
URL: http://elecraft.85.s1.nabble.com/K2-PSK-31-Power-Settings-tp4975238p4978012.html

Bob,

As I stated in my original reply to Jon, that is not the best solution
(in fact it can lead to trouble) for any transceiver that controls the
power output by altering the BFO injection level to the balanced
modulator ( the K2 does that).  Transceivers that control the output
*after* the balanced modulator stage will operate nicely as you state,
but the K2 (and K3) control the output level prior to the balanced
modulator, and will have trouble if used that way.  Set the power to the
level that is desired and then adjust the audio for no ALC for digital
modes.

73,
Don W3FPR

Robert Mcgraw wrote:

> Don etc.
>
> May I suggest setting the K-2 to maximum output power, say on CW, and
> then adjust the TX level from the Signalink to produce about 30 watts
> output.  Do not change the power level on the K-2.  FYI - This should
> work very satisfactorly for any radio.
>
> With a PSK signal there will be some variation in output level depending
> on if one is looking at idle data or text data.
>
> 73
> Bob, K4TAX
>  
>
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