[time-nuts] Hanging bridge question

Bob Camp lists at rtty.us
Tue Mar 25 20:11:47 EDT 2014


Hi

If you are building a GPSDO, then the 1 pps out of the GPSDO should be much better than the pps out of the GPS. Making that happen is part of the control optimization. 

Bob

On Mar 25, 2014, at 7:46 PM, EWKehren at aol.com wrote:

> Yes if you want to use it only in a GPSDO and it is being done but if you  
> are a time nut you may want the 1 PPS..
> Bert Kehren
> 
> 
> In a message dated 3/25/2014 6:33:12 P.M. Eastern Daylight Time,  
> albertson.chris at gmail.com writes:
> 
> On Tue,  Mar 25, 2014 at 5:44 AM, <EWKehren at aol.com> wrote:
>> 
>> The  lowest cost solution is a DS chip in combination with a PIC. How  
> ever
> 
> 
> The lowest cost solution is to do the correct entirely in  software.
> After the measure the phase, simply add the  correction.
> 
> All you need to know is the phase.  There is not point  in correcting
> the pulse, you don't need a corrected pulse.  What you  want is a
> measurement of the phase.
> 
> 
> Chris Albertson
> Redondo  Beach,  California
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