All, As I said, question shows my lack of knowledge of physics. :-)
Thanks, everyone, for the explanations! 73, --Ian Ian Kahn, KM4IK Roswell, GA km4ik....@gmail.com K3 #281, P3 #688 On 3/9/2012 6:30 PM, Ian Kahn - Ham wrote: > 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 > km4ik....@gmail.com > 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:Elecraft@mailman.qth.net >> >> 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
