[time-nuts] 1pps to 10khz PIC stuff

[Robert Atkinson]

Hi Ashley,
Reading between the lines, are you trying to subsitute a 1pps output GPS for use in the  G3RUH 10kHz GPSDO design? If this is the case youwould be better off "biting the bullet" and going for a design that uses 1pps directly. An example is the classic Brooks Shera design, 
http://www.rt66.com/~shera/index_fs.htm
While it's simple to build, there are limitations to the G3RUH design. Adding extra circuitry to generate the 10kHz is most likely to degrade the perfomance. A good overview of GPSDO's can be found here, 
http://www.ko4bb.com/Timing/FrequencyReference.php
Timing grade Motorola Oncore GPS's are availble cheaply on ebay.
 
Regards,
Robert G8RPI.

--- On Mon, 22/2/10, ashley40 at aol.com <ashley40 at aol.com> wrote:


From: ashley40 at aol.com <ashley40 at aol.com>
Subject: [time-nuts] 1pps to 10khz PIC stuff
To: time-nuts at febo.com
Date: Monday, 22 February, 2010, 2:13



Hi.....has anyone experiemented with programming a PIC to get 10khz out of 1pps GPS pulses ?  If so, maybe a link or two please , or some info .

Thanks





Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th Avenue
Cornelius, Oregon
97113


W7DUZ


www.kiss-electronics.com
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