After lugging my HP8640 up the stairs again last night (ugh) to act as a source for doing some feedline loss measurements I thought again about getting an XG3 for this purpose. I have an XG2 but its max output is only -73dBm. I downloaded the manual and looked at it and the schematics and realized there is no output filtering rather a square wave is emitted.
So if used with a broadband power meter (like the PIC Power Meter) the PPM would receive not just the fundamental but the whole spectrum emitted by the XG3. So if used for loss measurements it would seem that a short bit of cable might allow the harmonics to contribute meaningfully to the received power yet a long cable would attenuate the higher harmonics to a greater degree and give an incorrect impression of the loss at say 7Mhz. Seems like this device is only useful then with a tuned receiving device. Do I have this correct? tnx jim ab3cv ______________________________________________________________ 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
