Re: K3: RF Calibration / RF output
Posted by
Bill W4ZV on
Mar 13, 2012; 11:39am
URL: http://elecraft.85.s1.nabble.com/K3-RF-Calibration-RF-output-tp7367721p7368184.html
Edward R. Cole wrote
I obtained a brand-new calibrated 25H element for my Bird43 power
meter, today. I checked power out on my K3/10 set to 12.0w.
80m = 11w
40m = 11w
20m = 11.5w
15m = 11.5w
10m = 11.5w
all measurements into a Bird 25w coaxial termination
Bird accuracy is +/-5% of full scale (25W for your slug) or +/- 1.25 Watts, so the above is within spec. If you want better accuracy, consider the LP-100A which is +/- 5% of reading. At 12 Watts, this would be +/- 0.6 Watts or twice as good as a Bird...and probably cheaper as well considering the cost of a comparable set of slugs.
http://www.telepostinc.com/lp100.html73, Bill