Like I said before, the requested power is nowhere near the power read by the tuner when tuned to a non-50 ohm load. But I am certain of the calibration of the tuner meter and when it says it is putting out 5 watts, the current draw is about 1.75 amps as I have confirmed with other K2 owners to be the draw at 5 watts.
There's some weirdness going on somewhere, that is for sure. Tom On Jul 19, 2009, at 11:12 PM, Don Wilhelm <[email protected]> wrote: > Tom, > > That is exactly what I said. In CALP, if the load is anything other > than 50+j0, the power indication will be incorrect. In other words, > the requested power may not equal the actual power. > > When you go to AUTO and do a TUNE, the forward power should be close > to the requested power. > > 73, > Don W3FPR > > Tom Campie wrote: >> I calibrated the tuner to a 50 ohm load on CALP. With the tuner >> tuned to a non-50 Ohm load, the requested power does not match the >> output power by any definition of the word. >> >> Tom >> >> On Jul 19, 2009, at 9:48 PM, Don Wilhelm wrote: >> >> >>> Tom, >>> >>> No adjustment is required. In CALP state, the tuner must be >>> working into a 50 ohm load for accurate power readings. If you >>> are connected to an antenna that has a feedpoint impedance other >>> than 50+j0 impedance, you can expect "unexpected" results. >>> When you change the ATU menu to Auto and do a TUNE, the tuner has >>> done its job of providing a 50 ohm match to the K2 and the power >>> out will be as requested. >>> >>> 73, >>> Don W3FPR >>> >>> Tom Campie wrote: >>> >>>> This has been beaten over and over I think but I haven't found >>>> anything on it yet: >>>> >>>> I just got back from the lab at work and used a very well >>>> calibrated power meter to calibrate my KAT2 power meter. Now >>>> on 40m at home, I set my power control to 5w and tuner to >>>> Pout. The tuner now reads 2.9w. Not until I tune the >>>> requested power to 8 watts or so does the tuner say I'm putting >>>> out 5 watts. Isn't there a way to adjust it so that the >>>> requested power matches the tuner output power so that the S/ >>>> Power meter reads the right value? That's the most annoying >>>> part... >>>> >>>> Tom >>>> ______________________________________________________________ >>>> 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 >>>> --- >>>> --- >>>> ------------------------------------------------------------------ >>>> >>>> >>>> No virus found in this incoming message. >>>> Checked by AVG - www.avg.com Version: 8.5.375 / Virus Database: >>>> 270.13.20/2248 >>>> - Release Date: 07/19/09 05:57:00 >>>> >>>> >>>> >> >> ______________________________________________________________ >> 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 >> --- >> --------------------------------------------------------------------- >> >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com Version: 8.5.375 / Virus Database: >> 270.13.20/2248 >> - Release Date: 07/19/09 05:57:00 >> >> ______________________________________________________________ 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
