The procedure in the handbook is incomplete and misleading. This has been mentioned before.
First set CONFIG: TUN PWR to nor with the VFO A knob. Next follow the procedure. When you get to "Hold TUNE" etc you will notice that the display changes from the CONFIG:WMTR display to what looks like the normal TUNE display and you lose the parameter reading. At this point you can still turn the VFO A knob and the output power will change and you can match it to your external LP-100. When you exit TUNE you will note that the parameter value has probably changed. Regards, Mike VP8NO On 09/11/2012 21:09, Randy Farmer wrote: > During SS I noticed that my K3 transmitter seemed to be in need of > calibration, as the output power measured by my LP-100A (which I trust) > seemed to be a bit higher than expected from the radio's setting and I > was also observing some power "creep". > > This afternoon I finally got an opportunity to look into this and indeed > the transmit output is slightly high. 5W setting produces about 5.7W and > 50W setting produces around 60-62 watts. I used the K3 utility to do a > TX gain calibration and this seemed to only level the power on a band to > band basis. 50W requested now gets me about 62W on every band. > > It looks as if the calibration is (understandably) using the internal > wattmeter to set the power. Therefore, I concluded that I needed to do > the wattmeter calibration first to see if that corrected the power set > error. Unfortunately, the procedure in the manual doesn't seem to work. > Firstly, it says something about calibrating in Tune mode. I tried doing > the cal with both the front panel Power set to 5W and 50W and with the > Tune power set to these values. The procedure tells me to hold the Tune > button in the adjust menu and appears to say I should be able to adjust > the output power with the VFO A knob. This doesn't work. As soon as the > Tune button is held the rig drops out of Menu display and I just get the > normal Tune mode behavior. > > Am I reading the instructions wrong? They seem pretty ambiguous to me, > and no variant of what I think they could say seems to work. Has anyone > successfully done a TX Cal in the field? If so, how did you proceed? > > 73... > Randy, W8FN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
