HOME BASE
By setting the HOMEBASE position you allow BroadShield to use this location as
a reference position for spoofing detection: Should BroadShield detect that the
geographic position reported by SecureSync's GPS receiver seems to move bey-
ond the set Alarm Threshold (even though SecureSync does not move), an
alarm will be triggered.
The standard use case is to make your GNSS 1 Position your HOME BASE:
1.
Should the position fields be populated (other than the Alarm Threshold),
click CLEARLOCATION (this will prevent BroadShield from issuing an
alarm once you SAVEd the new position.)
2.
Click USE in the GNSS 1 Position box to apply the settings.
3.
The default Alarm Threshold is 50 m, i.e. any detected position shift bey-
ond a 50-m circle around the HOMEBASE position will cause an alarm. You
can change this setting to adjust the sensitivity.
4. Click SAVE to accept the entered values.
A less common use case may be that you want to pre-set the unit's position for
later use e.g., if the SecureSync unit will be deployed in a different location: Set a
position manually by entering lat/long (format: xx.xxxxxx degrees) and alt. Note,
however, that this may cause a spoofing alarm, since BroadShield detects a dif-
ference between the HOME BASE position and the GNSS position.
3.3 Managing References
CHAPTER 3 • SecureSync 2400 User Manual Rev. 5.2
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