CONFIGURATION
001-9193-001 Version 1
Page 39 of 48
Sentry 4G 900
TM
User Manual
Typical sensitivity
-135 dBm
Reacquisition time
Less than 2 seconds
Average Cold/Warm/Hot Start time to first fix
Under 45/15/3.5 seconds
Position Accuracy
GPS Standard Positioning Service (SPS)
<15 meters
DGPS (WAAS) corrected
<3 meters
The GPS page allows the user to see the GPS status and configure remote or local delivery of GPS
position reports. Viewing the GPS data from a local or remote PC requires a UDP port listener
program be installed on the PC. Any UDP listener will work provided you can set an appropriate port
value for the program.
5.8.1
GPS Status
Figure 27 - GPS Status
Condition:
Indicates No Fix, Standard GPS Fix, Differential GPS Fix, or Estimated / Last
Known Position
Number of Satellites:
Indicates the number of satellites the GPS has locked on to. A
minimum of 3 is required to establish a position. Generally, the more satellites the GPS has
locked, the more accurate the position reporting will be.
UTC:
Time of day in
Universal Coordinated Time
Position:
Device position reported in degrees and minutes
Altitude:
Altitude from Mean Sea Level reported in meters.
True Course:
Heading, reported in degrees (0 – 360)
Ground Speed:
Reported in km/hr
