You might use a diode, such as a 1N914, 1N4148 or (preferably) a 1N5711 to rectify the voltage developed across the load and then measure the DC out of the diode. With a high Z load such as a DMM, the DC voltage will be close to the RF peak voltage.
A standard DMM, even a good one, will not provide usable results above a few hundred KHz, unless it's a specialized instrument intended for RF measurements. Jack K8ZOA Ron Bower wrote: > I have searched the archives and have not been able to find a definitive > answer. > > > > I've now completed the construction of the basic KX1 and would like to have > a fairly reasonable measurement of the output power on 20M and 40M > > > > I have a very decent dummy load but do not have a very accurate RF Power > meter. I do have a decent DMM and could measure the voltage drop across the > 50 ohm dummy load - I'm not sure how accurate the DMM would be at 7 or 14 > MHZ. > > > > Is there a recommended method to measure the power output without an RF > power meter ? > > > > Thanks in advance, > > Ron, AC2C > > > > ______________________________________________________________ > 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
