[Elecraft] K3: two problems

Stewart Baker stewart at baker.nildram.co.uk
Mon Apr 28 16:57:22 EDT 2008


On Mon, 28 Apr 2008 21:10:25 +0100, Dr. Werner Furlan wrote:

Werner,
I get similar results to you. This is using the LP-100A in peak 
hold mode, where the speed of it's response is very fast.

I need a COMP setting of around 20 to get the commanded 100W peak.

With my K3 into a dummy load and looking with a scope it is 
apparent that the peak RF signal changes by around 50% over the 
range of the COMP control.

This may be the effect of the ALC, but in a well designed system 
should not happen. The ALC should respond to peak not average.

73
Stewart G3RXQ
> you are right!
> with this method I find the same performance like you.
>
> Is a maximum power output of 45 Watt peak in SSB normal?
> (mesured with a LP100)
> Power with CW is showing 100W with the same instrument.
>
>
> 73! de Werner OE9FWV




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