Thanks Don. The only calibration I did for the W1 was the procedure in the manual.
Bryan, Zl1NI > Brian, > > Unless you used a very accurate wattmeter to calibrate the W1, I > would > believe the DL1. > HOWEVER: The formula in the DL1 manual is not correct. 8.97 volts > measured from the DL1 properly indicates 3.44 watts. > The correct formula for the DL1 is (Vdmm + Vdiode)^2/25. You can > measure the actual forward voltage drop of you diode in the DL1 and > substitute into the formula above, or assume the diode drop is 0.3 > volts. > > I believe an updated DL1 manual may be due with the corrected power > formula - I submitted the power formula derivation to Bob Friess (he > designed the DL1) and he accepted it. > > 73, > Don W3FPR > ______________________________________________________________ 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
