I have completed my attempts to measure the power output from my K2 using an
o'scope. I must say that my attempts were not successful. For some reason
when set to 10 watts I get about twice the voltage as when set for 5 watts.
At 15.2 I get about 3 times. This does not make sense because of the V*V
term would indicate 9 times the 5 watt output when set for 15 watts. I know
that this cannot be true!
Now I do have a KAT2 installed and as I understand it this should improve
the accuracy of the power output because of the more accurate power
measurement. I set the K2 to display output power and got the following
results:
MHz Req=5.0 Req=10.0 Req=15.2
3.6 6.4 12.6 16.1
7.1 6.2 10.7 15.6
10.1 5.5 11.5 15.5
14.1 5.6 11.0 16.6
18.1 5.2 11.1 14.8
21.1 5.7 10.8 14.1
24.9 5.7 11.0 14.4
28.1 5.7 11.0 14.1
It certainly makes sense that when requesting 15.2 watts I get only 14 watts
at higher frequencies, but why would I ever get readings that are
significantly above the requested output power?
I thought that this reading is what tells the controller how much power to
output.
This is certainly a puzzle to me.
Fran
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