[Elecraft] K2/100 Power Calibration questiion

[n2uz]

Thanks to Don and Ron or their responses and everyone else also.

I used my scope with the 10x probes and measured the peak to peak 
reading from a tee connection going to the dummy load. Squared that and  
divided by 400 to get the power out, can't get too more accurate than 
that. Now the K2 putts out 100 on all bands and only drops abt 3 watts 
on 10 meters,  not bad.  Of course,  my external wattmeter on the tuner 
was 20 higher at 100 watts,  15 watts higher at 50 watts and about 9 
watts higher at 10 watts out, so much for that  power  meter.

To make sure my scope is calibrated I measure a brand new  (in a pack) 
AA battery with my Fluke DVM and use that to make sure the scope is 
right on,  so I am fairly confident about the scope calibration.

Everything is all fine and finished and I even  made a few contacts last 
night at 40 watts.
Love my K2.

Jerry, n2uz

snip..

The power drops from 102w at 80 meters to 79w on 10meters, is this 
normal?  

I also measured with a textronix scope at 50w on 80 meters and read 124v 
p-p using a precison dummy load , giving me 39 watts out.  Should I use 
the scope to do the adjustments?