Note:
Behavior (a.) applies to most Trimble
®
receiver types, while behavior (b.)
applies to u-blox
®
receivers.
Verifying GNSS Survey Progress
To see if NetClock's GNSS receiver is performing a survey and if so, verify its progress:
1.
Navigate to
INTERFACES > REFERENCES: GNSS 0
.
2.
The survey status (ACQUIRING, COMPLETE, or progress in percent) is displayed under
the line item Survey Progress.
Note:
Once a survey has been initiated, the Survey Progress may not be
displayed right away until the receiver has completed its initialization pro
cess.
3.3.3.6
GNSS Receiver Offset
The
Offset
setting in the GNSS configuration window (
INTERFACES
>
GNSS 0
> "
Edit
") allows
you to enter an offset to the GNSS time and 1PPS reference in order to account for antenna
cable delays or other latencies (entered and displayed in nanoseconds).
By setting the correct
Offset
value, you can offset the system’s
on-time point
by the
Offset
value
to compensate for the antenna and in-line amplifier delays. Under typical conditions, the expec
ted cable and amplifier delays are negligible. You can calculate the delay based on the man
ufacture’s specifications.
The offset range is ±½ seconds (= ±500 ms, or ±500 000 000 ns). The default value is 0 nano
seconds, and the resolution is 1 nanosecond.
Configuring a GNSS receiver offset
3.3 Managing Input References
CHAPTER
3
•
NetClock User Reference Guide
Rev.
16
195
Summary of Contents for NetClock 9400 Series
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Page 4: ...Blank page II NetClock User Reference Guide...
Page 16: ...BLANK PAGE XIV NetClock User Reference Guide TABLE OF CONTENTS...
Page 42: ...BLANK PAGE 1 11 Regulatory Compliance 26 CHAPTER 1 NetClock User Reference Guide Rev 16...
Page 160: ...BLANK PAGE 2 17 Configuring Outputs 144 CHAPTER 2 NetClock User Reference Guide Rev 16...
Page 238: ...BLANK PAGE 3 5 Managing the Oscillator 222 CHAPTER 3 NetClock User Reference Guide Rev 16...
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