075-2000-30 rev 1.5 Orion Electronics Limited 19
Chapter 6 HT550 Javelin Confi guration
6.3.2 GPS Settings
The HT550 Javelin has 3 different modes of operation: Real Time, Low Power Real Time, and User
Initiated.
1. Real Time
The Javelin records and transmits fi xes based on changes in speed, position and bearing as well as regular
intervals if the unit is not in motion. To confi gure the parameters for Real Time Mode select the Advanced
Settings button within the GPS Settings dialog.
Advanced Settings (Figure 6.3.1)
Default Real Time Fix Interval: This number defi nes how often the
Javelin will record and transmit a GPS fi x when neither the Maximum
Distance or Maximum Bearing are exceeded. Minimum value is 1 second
and maximum value is 120 seconds. (Default setting is 30 seconds)
Maximum Distance Between Fixes: Select the maximum distance the device can travel before it records
and transmits a GPS fi x. Minimum value is 1 meter, maximum value is 1 kilometer. (Default setting is 15
meters)
Maximum Bearing Change: Select the number of degrees in bearing change by the device to have the
Javelin record and transmit a GPS fi x. Minimum value is 2 degrees and the maximum value is 180 degrees.
(Default setting is 7 degrees)
2. Low Power Real Time
The unit records and transmits fi xes at the specifi ed time interval. If an external GPS antenna is connected the
GPS receiver will power down between fi xes. The maximum time interval is 24 hours and the minimum is 2
minutes. Enter the desired time interval in the Interval dialog boxes (Figure 6.3.2).
3. User Initiated
In user initiated mode ( Figure 6.3.3) the unit records and transmits fi xes when the user triggers the input
switch. If an external GPS antenna is connected the GPS receiver will power down between fi xes.
Figure 6.3.1
Figure 6.3.2
Figure 6.3.3
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