and for SAASM units, the minimum number of satellites is normally 4 (four). Hence, it
would be prudent to set the Minor Alarm Threshold to 8, and the Major Alarm Threshold to
6.
Note:
While GPS Notification Alarms can be used in
Mobile GNSS receiver
mode
, it is not advisable.
To determine
how many satellites
your VelaSync unit is currently receiving, navigate to
INTERFACES > REFERENCES: GNSS 0
. See also
.
To
set
the GPS Alarm Thresholds:
1.
Navigate to
MANAGEMENT > OTHER: Notifications
, and choose the
GPS
tab.
2.
At the bottom of the window, locate the
ALARM THRESHOLD
panel:
3.
In the
Minimum Satellites
fields enter the minimum number of satellites that must
be available before the alarm is triggered. The alarm will be triggered when the num-
ber of satellites available is
BELOW
this number.
4.
In the
Duration Below Threshold (s)
fields, enter the time
in seconds
that the sys-
tem must be below the threshold set in the
Minimum Satellites
field before an
alarm is triggered. The alarm will be triggered when this time is reached.
By default, this timeout value is set to 0 seconds: As soon as the receiver drops
below the minimum number of satellites, the associated alarm is triggered. A delay
of e.g., 5 seconds, however, would not trigger an alarm if the number of received
satellites drops below the specified number for only 3 seconds.
You can configure this event to cause either a Minor alarm, or a Major alarm, or both.
To learn more about Minor and Major alarms, see
"Minor and Major Alarms" on page 208
Note that the GNSS receiver must initially be tracking more than the configured number of
satellites in order for this alarm to be triggered (the alarm is triggered when the receiver
falls below the number of
Minimum Satellites
you specified above).
4.4 Notifications
CHAPTER
4
•
VelaSync 1232 User Manual Rev. 4
171
Summary of Contents for Spectracom VelaSync 1232
Page 2: ......
Page 4: ...Blank page II VelaSync 1232 User Manual...
Page 12: ...BLANK PAGE X VelaSync 1232 User Manual TABLE OF CONTENTS...
Page 28: ...16 CHAPTER 1 VelaSync 1232 User Manual Rev 4 1 7 The VelaSync Web UI...
Page 34: ...BLANK PAGE 1 9 Regulatory Compliance 22 CHAPTER 1 VelaSync 1232 User Manual Rev 4...