When removing jitter from a signal that's accurate over the long term, we can do better than just averaging. By letting a counter run (e.g. from the oscillator we're trying to discipline) and latchi
There is a problem which will limit us to MS100 or slower anyway. It's that we have considerable difficulty compensating for the number of *milliseconds* delay through our transmitters and our recei
When removing jitter from a signal that's accurate over the long term, we can do better than just averaging. By letting a counter run (e.g. from the oscillator we're trying to discipline) and latchi
time" (GPS time even better the software/hardware). Surely, if the 1us jitter is a function of clock timing synchronisation then by averaging over many 1s periods, as the Brooks Shera design does, e
time" (GPS time even better the software/hardware). Surely, if the 1us jitter is a function of clock timing synchronisation then by averaging over many 1s periods, as the Brooks Shera design does, e
Oh! That's bad news. I checked the Laipac data sheet and the 1PPS accuracy is +/-1 microsecond - about 20 times worse than the UT+... It's good enough to be used as a bit clock but probably not good
Another alternative is Motorola Oncore UT+ which was designed specifically for timing applications. It has a "Site Survey" function which, if started, calculates the average of 10000 position measur
