[Elecraft] KPA-1500 power reading?

Jim McCook w6ya at cox.net
Sat Feb 6 18:54:01 EST 2021


Good points, Ray and Jim,  I should have been more detailed with what I 
posted. I checked The Bird 43 with two other Bird 2500w slugs from 
friends and they were all reading the same with a dummy load at 1500w.  
I did the KPA1500 calibration using the Bird with a high power dummy 
load, then checked again with my antennas in band segments where they 
present no significant reflected power and near 1:1 SWR.  At those 
points they were in sync.  Most of my antennas are flat on CW segments 
at specific spots without using the tuner in the KPA1500.  I operate 99% 
CW and realize that when the load changes from 50 ohms the Bird reads 
wildly high and cannot be trusted.  - Jim W6YA


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