Interesting review of five commercial wattmeters in March QST. Power levels from 5 to 1000 watts and frequencies from 2 to 50 MHz.
For CW: Most are within +/-10% at 100 watts. Many are way off at 5 watts (as much as 70%) and 1000 watts (up to 24%) Bottom line: Hard to measure watts accurately over a wide frequency/power range-- even with a pure resistive dummy load attached. Do you believe yours? Article notes +/-5% is typical for lab grade wattmeters. 73 de Brian/K3KO ______________________________________________________________ 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
