[Elecraft] KPA1500 LO GAIN FAULT

[Ed gilliland]

Well I spoke too soon.

I still have a KPA1500 problem.  I am not getting the LO GAIN FAULT and 
I do have RF out but I cannot get 1500 watts output with 50 watts drive.

I connected the KPA1500 to a dummy load and loaded the the latest 
version of the KPA1500 utility.

With 20 watts drive the utility displays the following readings.

INPUT             20W

PA VOLTAGE        53V

PA CURRENT        19A

EFFICIENCY        21%

POWER OUTPUT      254W



With 50 watts drive the utility displays the following readings.


INPUT           50W

PA VOLTAGE      53V

PA CURRENT      34A

EFFICIENCY      40%

POWER OUTPUT    715W

Ed