Somewhat like Bob (Stewart) I've spent my life in IT with a little background in Ham Radio. Now, infected with the Time Bug, I'm slogging through tf.nist.gov, wenzel, and leapsecond to try and level up.
I'd like to ask Bob (Camp) if he has a readily available link for a suitably quite homebrew mixer, similar to the one whose parts list he was discussing? Thanks to Magnus for his links (later in this thread), to which I'd like to add the following for those on the list, like me, who are neophytes. Fundamentals of Time and Frequency: http://tf.nist.gov/general/pdf/1498.pdf Using a Time Interval Counter to Measure Frequency Stability: http://ipnpr.jpl.nasa.gov/progress_report/42-90/90S.PDF The later link, while a little dated, still does a good job of covering concepts. Thanks again, Jimmy... N5SPE > On Feb 6, 2014, at 8:57 PM, Bob Stewart <[email protected]> wrote: > > I think I see the problem. I was wondering about using the 1PPS output from > my Rb in a test. Cobbling all that together would be a quick bit of work for > you, but I spent my life in IT. I'm good with a soldering iron, but I > readily admit my shortcomings at hardware tinkering. > > > Bob > > > > >> ________________________________ >> From: Bob Camp <[email protected]> >> To: Tom Van Baak <[email protected]>; Discussion of precise time and >> frequency measurement <[email protected]> >> Sent: Thursday, February 6, 2014 7:43 PM >> Subject: Re: [time-nuts] Rb as source for ADEV? >> >> >> Hi >> >> My intent was certainly not to stop anybody from doing anything with what >> they have. My concern is that this is a lot of work for modest return. A >> simple single mixer setup for $20 would dramatically change things…. >> >> $3 mini circuits double balanced mixer >> $3 op amps x 2 >> +/- 15 V supply you already have (hopefully). >> $5 for a piece of perf board >> $3 for 3 BNC connectors. >> $3 left over for resistors and capacitors. >> <snip> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
