hour time window so as to complete the GNSS survey. This occurs frequently in
areas with limited view of the sky (e.g., "urban canyons").
In Single Satellite Mode, the GNSS receiver will be considered a valid input ref-
erence as long as:
you have manually entered a valid position for your antenna location (instruc-
tions can be found under "Manually Setting the GNSS Position" on page188
and "Determining Your Position" on page189).
the GNSS receiver continues to track at least one qualified satellite.
Note: VersaSync is designed to provide the most accurate time in
Standard Mode. The Single Satellite Mode should only be used if the
GNSS receiver could not complete a survey.
3.3.3.4 Setting GNSS Receiver Dynamics
Receiver Dynamics further refine the reception characteristics for the individual receiver
modes and determine if the receiver will automatically resurvey after a reboot.
Caution: If you select a setting that does NOT resurvey, and subsequently
relocate your unit (antenna) by more than 100m, u-blox M8T receivers will
NOT detect the new position, and hence provide an incorrect time.
For more information about the GNSS Survey, see "Performing a GNSS Receiver Sur-
vey" on page183.
For more information on Receiver Modes, see "Selecting a GNSS Receiver Mode" on
page178.
To change/review the GNSS Receiver Dynamics:
1.
Navigate to INTERFACES > REFERENCES: GNSS 0.
2.
Under the Main tab of the GNSS 0 status window, the line item Receiver Dynamics
will indicate the current setting.
3.
To change the setting, click Edit in the bottom-left corner. The GNSS 0 con-
figuration window will display:
180
CHAPTER 3 • VersaSync User Manual Rev. 7.0
3.3 Managing References
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