Novatel OEM719, Инструкция по установке и эксплуатации

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Chapter 3 OEM7 Receiver Operation
OEM7 Installation and Operation User Manual v4 69
4. Issue the following command to the cold clock receiver:
adjust1pps markwithtime
When the cold clock receiver receives the 1PPS event from the fine clock receiver, it checks to
see if a valid
TIMESYNC log has arrived within 200 ms of the last 1PPS event. If so, it sets the
cold clock receiver clock to the time of the fine clock receiver. See Figure 28: 1 PPS Alignment
on the next page.
Figure 26: Transfer FINE Time from Fine Clock to Cold Clock Receiver
Transfer FINE Time from a Fine Clock to a Warm Clock GPS Receiver
1. Connect the 1 PPS signal of the fine clock receiver to the Mark 1 input (Event1) of the warm
clock receiver as shown in Figure 27: Transfer FINE Time from Fine Clock to Warm Clock
Receiver on the next page.
2. Issue the following command to the warm clock receiver:
adjust1pps mark
The phase of the warm clock receiver clock is adjusted by the fractional measurement of the
fine clock receiver’s 1 PPS mark input event. In other words, it synchronizes the warm clock
receiver’s 1 PPS to the incoming 1 PPS of the fine clock receiver. It does not adjust the one
second TOW counter or the receiver’s week number. This procedure is used to make small cor-
rections to the warm clock receiver’s clock.