[Elecraft] Tips on setting transmit drive for PSK31

[Don Wilhelm]

Doug,

Do not use the power output as an indication for mic drive on data modes 
(PSK31 for example).
The proper indicator is the "ALC" bargraph - adjust the audio input for 
4 bars with an occasional flicker of the 5th bar.

At that level, it is not an indication of ALC action nor compression.  
The ALC does not start until the 5th or 6th bar is illuminated - the 
lower 4 bars are an indicator of the audio level (sort of like a Vu meter).

If you set the audio drive too low, the K3 will attempt to develop more 
power to maintain the power output level you have chosen - that is the 
reason things seem so 'touchy'.

73,
Don W3FPR

Doug Person wrote:
> I'm trying to get my K3 running on PSK31.  Everything seems fine so 
> far.  I'm using line in/line out into mic and headphone on my laptop. 
> Copy is very good. Transmit drive is touchy and I'm wondering if anyone 
> has any tips on setting the correct amount of audio drive. My power is 
> set to 20 watts, compression off. Audio gain is 6. Transmit gives me 
> about 10 watts or so.  Should I increase gain until I get 20 watts?
>
> Thanks for any input,
>
> Doug -- K0DXV
>
> PS: UPS just handed me another white box.  Its my third K2 and its 
> number 6798. Time to warm up the iron.
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