Anders: I am a QEX subscriber and have that issue but I haven't built the circuit.
The author referenced Brooks Shera as the basis for his work. He uses a Trimble Resolution T GPS for a PPS reference and an LPRO-101 Rubidium oscillator for the 10MHz. His circuit divides the 10MHz output from Rb by 100 and compares the phase of the 100kHz against the PPS. A PIC16 MCU is the controller and uses the phase data to control an external DAC to drive the Rb frequency control pin. There were a couple of other time & frequency related articles in 2013 if you decide to get the CD. Mike On 3/21/2014 09:20, Anders Time wrote:
Does anyone have a copy of the QEX 2013 november article(Bill Kaune) "Using GPS to Fine Tune a Rubidium Frequency Standard"? I´m really interested in this subject, but I can´t find this magazine in Sweden. I have contacted QEX, but it is very difficult to buy back-issues. Have any one built this frequency standard and can tell me more about the project? You can access the source code for the project here: http://www.arrl.org/files/file/QEX%20Binaries/2013/November_13/11x13_Kaune_PIC_Code.zip /Anders _______________________________________________ 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.
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