[time-freq] Does Tadd-3 fatten the 1pps?

Kevin Payne kevin_payne at frontiergeo.com
Mon Jul 22 17:56:16 CDT 2013


OK thanks Stanley

On 22/07/2013 3:47 PM, Stanley Reynolds wrote:
> The tadd-3 does not stretch the pulse.
>
> Stanley
>
> ------------------------------------------------------------------------
> *From:* Kevin Payne <kevin_payne at frontiergeo.com>
> *To:* time-freq at tapr.org
> *Sent:* Monday, July 22, 2013 5:24 PM
> *Subject:* [time-freq] Does Tadd-3 fatten the 1pps?
>
> We just bought a FATPPS and a TADD-3.  The FATPPS manual says it 
> stretches the 1pps to 30milliseconds.
> Does the TADD-3 do this as well, or does it just split the trigger 
> into multiple outputs?  The TADD-3 manual says it has "two RS232 level 
> outputs designed to drive the serial port of a PC".  Does this mean a 
> longer pulse?  Or do I need to use the FATPPS on the RS232 output of 
> the TADD3?
>
> We are trying to take the NEMA and 1pps of a GPS unit (Satloc SLXg3) 
> as input, and as output we want a 1PPS BNC, and a second output of 
> RS232 NEMA and fattened 1PPS.
>
> thanks
> Kevin
>
> -- 
>
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>
>
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