This probably shows my gross lack of knowledge of the physics involved here, but what does the weight of the tuner have to do with its efficiency?
73, --Ian Ian Kahn, KM4IK Roswell, GA [email protected] K3 #281, P3 #688 On 3/9/2012 6:14 PM, Fred Jensen wrote: > 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 ______________________________________________________________ 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
