[Elecraft] TX Gain Calibration Error?

[Jeff Cochrane - VK4BOF]

Hi everyone,

I am attempting to do a TX Gain Calibration and every time that I have attempted it so far, I get the following response from the K3 Utility. 

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Starting 5 watt calibration

Calibrating at 1.900 MHz

Calibration power settled at "13.5 V ;"

Elapsed time: 12 seconds

Tx Gain calibration failed because transmit power did not reach the expected value

5 watt calibration failed


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I get the same error if I bypass the 5 watt test and go straight to the 50Watt test.
I have tried it with the radio running on a battery and with a regulated power supply.
I am using the latest  version of the K3 utility.

Any idea's?

Jeff Cochrane
VK4BOF
East Innisfail QLD
Australia