I didn't enter the FMT due to the lack of an HF antenna, but my original plan was to downconvert the signal with a GPS-locked LO, then run it through a logamp and a very narrow CW filter and straight into my 5370B without any demodulation at all. As long as there were no interferers within the CW filter's bandwidth -- which it sounds like there may have been -- that should have worked about as well as any other technique.
Does the 3586C have an AGC-controlled IF output? A BFO synthesizer would be a good idea, but it might not be necessary if you can filter and measure the IF directly. -- john, KE5FX > > One of my plans is to build a BFO synthesizer to replace the crystals > and thereby eliminate any frequency offset. Having done that I should > be able to directly determine frequency by measuring the output tone. > > John > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
