Re: [Elecraft] KX3 - calibration SWR 99.9-1 is too high for calibration

John, Another thing - you could have a bad coax between the KX3 and the dummy load - overlook nothing, especially simple things like that which are often forgotten. Make no assumptions about the 'goodness' of cables and any adapters. Substitute a known good cable, or disconnect it from the

Re: [Elecraft] KX3 - calibration SWR 99.9-1 is too high for calibration

John, Try to run the TX Gain Calibration manually. See the KX3 manual page 33. That will tell you whether it fails on only some bands, but not others. The Utility program quits after the 1st error. If the manual calibration succeeds, then you might want to try the Utility process again, but i

[Elecraft] KX3 - calibration SWR 99.9-1 is too high for calibration

Hello Just finished updating firmware; using latest utility pgm; radio works fine - 'tune' into dummy load gives 1.1-1. Calibration from utility instantly fails at 1.900 99.9-1 SWR. Can't think of anything to try - commercial dummy load directly connected. Thanks 72 John VE3NFK -- View