All,
I have been trying to get a handle on how well my K2 controls output power
for a long time. I have finally acquired an LP-200 Wattmeter/Dummy load
combination in order to provide a reasonable measure of this characteristic.
The results are below:
For a setting of 5 watts
MHz PWR
3.50 4.76
4.00 12.5
7.00 5.01
7.30 2.34
10.10 7.07
10.15 7.03
14.00 4.31
14.35 1.95
18.068 6.06
18.168 6.24
21.00 6.41
21.45 5.5
24.89 6.59
24.99 6.47
28.00 9.45
28.75 6.22
For a setting of 10 watts
MHz PWR
3.50 4.47
4.00 12.1
7.00 16.1
7.30 8.74
10.10 13.2
10.15 13.1
14.00 17.6
14.35 12.0
18.068 11.7
18.168 12.0
21.00 12.8
21.45 11.9
24.89 11.9
24.99 11.7
28.00 11.1
28.75 10.6
Of greatest concern to my are the main bands 10, 15, 20, 40 and 80 meters.
Where the readings look reasonable at one end of the band, they are way off
at the other end. I am wondering what might be causing such problems with
power regulation?
The rig only had the SSB, NB and Analog Audio filter options installed when
these measurements were made.
I very much need some advice on where to start looking and troubleshooting
this problem.
Thanks,
Fran
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