[hpsdr] GPS 1pps output

[Roger Rehr W3SZ]

Brooks Shera wrote an article for QST back in 1998 that used 1pps timing
to lock.  I built it at that time and it worked great.
http://www.a-aengineering.com/QST_GPS.pdf
http://www.a-aengineering.com/gps.htm
https://www.febo.com/pipermail/time-nuts/2013-April/075627.html

Bill Kaune W7IEQ wrote an article for QEX on a system he designed, with
good detail, in 2013.
https://www.tapr.org/pdf/DCC2014-GPS-to-Fine-Tune-Rubidium-Standard-W7IEQ.pdf

73,

Roger Rehr
W3SZ



On 6/13/2018 1:03 AM, Stephen Lee wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Gerry Sweeney, a very clever electronics tech, has coded PPS sync
> timing.  Here is a good place to start:
>
>
> https://gerrysweeney.com/build-a-10mhz-rubidium-frequency-standard-and-signal-distribution-amp-for-my-lab/
>
>
> Enjoy!   Stephen Lee, N7RV
>
> On 6/12/2018 5:50 PM, K4KV wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>> Hello,
>>
>> I have just ordered a qrp labs beacon kit with a gps unit that has a
>> 1pps output.
>>
>> I have been told that they use software to 'read' the gps and then
>> automatically
>>
>> correct the Siliconix programmable oscillator.  Granted, this takes
>> quite a while to
>>
>> get it right.
>>
>> But still, I cannot see how it can be very accurate compared to a
>> 10Mhz GPS output
>>
>> reference.
>>
>> These 1pps output modules are quite inexpensive.
>>
>> Can someone point me to a white paper where someone describes how to
>> use software
>>
>> to correct a programmable oscillator using a 1pps system?
>>
>> 73
>>
>> Glen K4KV
>>
>>
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