Chris, Careful. What you are contemplating can be very addicting.
I am not familiar with the units you mentioned but I have used the HP 10811. They can be had for not much money on occasion but seem to be around $100 now days. One such example is 350335841291 on e..y. I have also used an HP 105B which is a stand alone system that includes power supply, battery back up, and puts out 5 MHz, 1 MHz and 100 KHz. Both used Brooks Shera's controller card and seemed to work ok. It offers rather easy integration with the GPS controller card as well as the ability to remain on and fairly stable once disciplined. I suspect this would be good as well, 180399463609, on e..y. The Trimble Thunderbolt needs +5 VDC, +12 VDC and -12 VDC but is a self contained GPSDO putting out 1 PPS and 10 MHz. Not much construction required with this but needs a computer to monitor function. How do you plan to discipline the oscillator? Joe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Saturday, May 01, 2010 2:28 PM To: [email protected] Subject: [time-nuts] oscillator choice question I'd like to build a GPS disciplined frequency standard. I am slowly gathering up pieces. I have a Trimble Resolution T GPS card that appears to work, and an antenna for it. I'm thinking now of the oscillator part. I have two Racal 1992 counters with the stable oscillator option (probably 04E since these are former military units). I also have an old Schomandl ND-100M Frequenzdecade signal source with an (I assume) ovenized oscillator w/unknown properties. I'm wondering if I could use an oscillator from one of these gizmos instead of shelling out real money on ebay? Speaking of which, it seems like half the people in China are selling oscillators. I assume some of them are good for this application and some not so good? The usual suspects from HP and Agilent are there, and they seem to command a pretty good (high) price. Which is why I'm eyeing the Schomandl. Chris w0ep _______________________________________________ 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.
