[hpsdr] GPS 1pps output

[Achim Vollhardt]

Glen,
THE obvious explanation how to do it is written by Rick Hambly (W2GPS):

http://www.gpstime.com/

Lots of articles there..

73s Achim, DH2VA


On 13.06.2018 22:27, hpsdr-request at lists.openhpsdr.org wrote:
> Message: 1
> Date: Tue, 12 Jun 2018 20:50:43 -0400
> From: K4KV <k4kv at k4kv.com>
> To: hpsdr <hpsdr at lists.openhpsdr.org>
> Subject: [hpsdr] GPS 1pps output
> Message-ID: <d6b797d6-08cb-63b2-6ae7-0d9060beee00 at k4kv.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> 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