[Elecraft] K2 Power ouput on 160m

[Don Wilhelm]

Bill,

Normally there is greater than 12 watts output on 160 meters - most will 
do 15+.  However, that is into a 50 ohm dummy load.  The drive is 
usually plentiful on 160, and there is not really much you can do to 
increase it.  You might modify the Transmit Buffer C150 value to get 
more gain on 160, but that would upset other bands too.

I suspect the input to your amp is not a 50 ohm load.  If you have the 
KAT2, try doing a TUNE into the amp, or adjust the L and C manually with 
the ATU menu until you find a good combination.

73,
Don W3FPR

On 6/12/2012 12:11 PM, Bill W4ZV wrote:
> Thanks to Don KI4D I finally got an N0SS T-R Relay kit for my K2.  In
> checking it out with my Alpha 76PA I got ~400 Watts on 160 and ~600 Watts on
> 80.  I tried adjusting L3&  L4 to optimize 160 but cannot seem to get more
> than 10+ Watts from the K2 even when driving the amp via the KAT2.
>
> 1.  Is 10+ Watts on 160 and ~15 Watts on 80 about normal for the K2?
> 2.  Is there any way to increase power on 160 other than peaking L3&  L4?
>
> 73,  Bill  W4ZV
>