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

Kevin Payne kevin_payne at frontiergeo.com
Mon Jul 22 17:24:22 CDT 2013

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 

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.


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