The 15MHz out surprised me to. I haven't traced out the circuits but from a couple of the components, I am guessing that they do something like take the 3rd harmonic of the 10MHz OCXO and dividing that by 2. However, it also looks like it should be easy to bypass that stuff and get right to the 10MHz if you want.
I'm planning to ditch the enclosure and put both the m-XO and m-Rb packages in a 1U rack chassis, using jumpers to get the appropriate signals from the boards to each other and to the front panel. John ---- Bill Hawkins said the following on 12/26/2006 11:06 PM: > John, > > Many thanks for posting the photos. Now I know that there are > no card edge connectors and no need to find a card rack. The > connectors are not all that difficult to trace. The arrow > pointing to +24 is a help. > > What's all this about 15 MHz out? > > Bill Hawkins > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of John Ackermann N8UR > Sent: Tuesday, December 26, 2006 3:32 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] RFTG-m-XO disassembly photos > > Nope, haven't fired it up yet. I'm not sure when that will actually > happen; too many projects going on in the basement! I wanted to get the > pics up to assist anyone else who may be working out the interface > information, so did that before anything else. > > John > ---- > > Didier Juges said the following on 12/26/2006 04:12 PM: >> John, >> >> Nice pics! >> >> Did you at least run it to see if it works and what kind of >> performance you could get out of it? >> >> Didier KO4BB >> >> John Ackermann N8UR wrote: >>> My RFTG-m-XO arrived today, and the first thing I had to do was rip >>> it apart. I've put a series of pictures of the thing in various >>> stages of disassembly at > http://www.febo.com/time-freq/hardware/Lucent_GPSDO/. >>> The pictures are full resolution so you should be able to zoom in to >>> look at circuit details if you'd like. >>> >>> When my -Rb arrives, I'll add pictures of it, as well. >>> >>> I'm planning to repackage both units into a 19 inch rack chassis, so >>> the disassembly is toward a good end... >>> >>> John >>> >>> >> >> _______________________________________________ >> time-nuts mailing list >> time-nuts@febo.com >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> >> > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > > _______________________________________________ > time-nuts mailing list > time-nuts@febo.com > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
