On 3/9/2012 2:24 PM, WILLIS COOKE wrote: > If you need a tuner, your > antenna does not meet this criteria so, what are you using to form > your opinion?
Weigh the tuner, then transmit continuously, measure the temperature rise, and when it's stable, calculate the heat loss [something to do with Boltzman's Constant -- the tuner *is* painted black]. What doesn't leave as heat must leave as RF. Did it years ago on a 10 KW FM broadcast transmitter [4 ea 4-1000's], and it came within one percent of the efficiency measured with the water-cooled dummy load. YMMV however. 73, Fred K6DGW - Northern California Contest Club - CU in the 2012 Cal QSO Party 6-7 Oct 2012 - www.cqp.org ______________________________________________________________ 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
