[hpsdr] GPS 1pps output

[Stephen Lee]

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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