[Elecraft] K2/100 Power Calibration questiion

[Jerry Deibel]

Hi all,

Just finished my 100 watt add on to my K2 (# 4472) and I have a few 
questions on the power calibration page 45.

I am using the power meter in my Palastar tuner as a external power 
meter and I know it is not calibrated, but it reads about 12 watts when 
I drive it with my Icom 703 at 10 watts and when I had a 1000MP(sold it 
to buy the K2) I remember it being about 5  watts differnce at about 50 
watts out.  I know I can' t rely on it being accurate, but its repeatable..

Anyway, when I set power on the K2 to 50 watts and hit tune+ display I 
adjust r26  so the reading on the k2 equals the reading on the external 
pwr meter, the reading on the external pwr meter changes also.  Is this 
correct?  I know I am supposed to make small adjustments, which I do.

My reading are.
Band       K2 pwr set       external pwr meter    k2 pwr display
80           10                          15                          
10.2            
40           10                          13                          11.4
20           10                          13                          10.4
15           10                          12                          10.7
10           10                          11                          9.7
80           50                          60                          49
40           50                          54                          52
20           50                          50                          51
15           50                          48                          52
10           50                          46                          51
80           100                        102                        104
40           100                         99                         100
20           100                         92                         106
15           100                         82                         103
10           100                         79                         104
The warc bands follow a similar pattern.

I measured my current draw on 10 meters at 100w and it was about 15.4 amps.

I made a few contacts on 30 meters and had good reports.

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?

Jerry, N2UZ