[time-nuts] NEO-M8N vs. NEO-M8T

Mark Sims holrum at hotmail.com
Mon May 21 16:24:47 EDT 2018

One thing to look out for when messing with sawtooth messages is the question of does the message come out before or after the PPS pulse...  good look finding the answer in the receiver documentation...

"After" seems to be the most common answer.  That makes hardware/delay line compensation rather tricky.  Sometimes you can use the antenna cable delay / pps offset commands to shift the pulse before the true position (assuming that they support negative offsets) and use a longer delay line to add the tweak back in.

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