I couldn't locate the GM3SEK article (is it still there?), but this is also useful: http://www.w8ji.com/building_a_current_meter.htm
And I believe that QST and/or the ARRL Handbook has information on this, also. 73, doug On 18-Dec-11 19:17, Jim Wiley wrote: > > As everyone knows, "real" RF ammeters are becoming scarce, or very > expensive. Does anyone out there have info on where to find a circuit > that is relatively inexpensive that I could use as a substitute? > Something using a toroid core plus diode, or something like that, would > be what I am looking for. Not too complicated in any case, and > absolute accuracy is not needed - a relative indication would be fine. > The application is measuring RF current for a trailing wire antenna > from an airplane. Transmitter power is in the 100 watt range. > > > Thank in advance > > > - Jim, KL7CC > > > ______________________________________________________________ > 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
