Tom
In the series of sawtooth displays are these all the same M12 and if
so how did it happen that you have this result in a short time?
Thanks.
Fred
N9RKM
On Tue Jun 27 15:45 , 'Tom Van Baak' <[EMAIL PROTECTED]> sent:
.........
For example, a 25 MHz oscillator in a GPS engine allows
the processor to pick, each second, which one of 25 million
edges it wants to be the official 1 PPS edge for that second.
Now 25 MHz frequency is 40 ns period so that gives a 1 PPS
granularity of +/- 20 ns in this example. See:
[1]http://www.leapsecond.com/pages/m12/sawtooth.htm
If that makes sense, then what's sawtooth correction?
.......
In short, the sawtooth correction describes, to the best
guess of the receiver, how early or late the hardware
1 PPS was.
/tvb
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