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ZY-12 GPS Receiver
Pulse Generation screen (Figure 3.15) by selecting PULSE GEN on Screen 4.
Table 3.14 describes the pulse generation parameters.
Figure 3.14.
One PPS Signal Characteristics
Figure 3.15.
Pulse Generation Parameters Screen
Table 3.14.
Pulse Generation Parameters
Parameter
Description
PERIOD
The period of the PPS option may be changed from a half second
up to a maximum of 60 seconds. Default is 1 second.
OFFSET
PPS may be advanced or delayed up to 500 ms in 100-nanosecond
steps. After you specify the period and offset, press
[e]
to save.
OUTPUT TIME ON A:N
B:N C:N D:N
Output time message once every second, synchronized with GPS
time (rising edge of pulse is also synchronized with GPS time)
through serial port A, B, C, or D. Message format is:
$PASHR,PPS,dddddd
where
dddddd
is the time in seconds of the week
1 to 2 ms
Rising edge
is GPS second
