John, Assuming you have only the basic K2 - no KAT2, KAT100 or KPA100 installed, and you are operating into a good 50 ohm non-reactive dummy load (check it at frequency with an antenna analyzer - a simple resistance measurement will not be adequate) - then normally, the K2 power display is quite accurate. Since yours is apparently not, check all the factors above and then if still inaccurate, check R67, R68, D9, R69 and R66 on the K2 RF board. Check for value and for good soldering.
The power display for the basic K2 depends highly on having a non-reactive 50 ohm load connected, since this is a simple diode detector circuit. Given your stated observations, is there any chance that you interchanged R67 with R68? 73, Don W3FPR John wrote: > I notice the power output from the K2 reads around 15 watts on the K2 > meter but > around 4 watts on a Bird 43 meter. > Is it maybe the K2 meter is generous? I have noted correct levels on > the Bird > before. > Thanks. > John. > > ------------------------------------------------------------------------ > > ______________________________________________________________ > 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: 8.0.233 / Virus Database: 270.10.16/1930 - Release Date: 02/02/09 > 07:51:00 > > ______________________________________________________________ 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
