Agreed, it's probably reasonable to say that a real absorption wavemeter would (a) have to have a meter or some other visual indicator; and (b) likely be powered exclusively by the energy its tank circuit "absorbs." The BC221/LM boxes fall a little short of both requirements.
-- john, KE5FX Miles Design LLC > -----Original Message----- > From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob > Camp > Sent: Monday, February 13, 2017 3:47 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Vintage Frequency Measurement > > Hi > > With a VFO running, you have a heterodyne frequency meter. That is (at > least to me) > a very different device than an absorption wave meter. I know way to put > power into > a BC-221 and use it as an absorption device. > > I’m not in any way saying that the LM or the 221 are less useful. They are > still > to this day > great little boxes. The just aren’t (by my understanding) wave meters. That > term describes > a different device that works a different way. > > Bob _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
