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| GSM Specifications | |
| GSM | Normal MS-SMS data only |
| 900/1800/1900 | Class 4 (2W) at 900 MHz (EGSM)
Class 1 (1W) at 1800 MHz (GSM 1800)
and 1900 MHz (GSM 1900 PCS)
| | SIM | 1.8V/3V |
| Type Approvals | FCC Part 15, FCC Part 24, CE MARK, E Mark |
| GPS Specifications |
| General | L1 (1575.42 MHz) frequency, C/A code 12-channels, 48 correlators |
| Sensitivity | Minimum -136.0 dBm Acquisition without external assistance |
| Accuracy | Horizontal
Altitude
Velocity |
<6 meters (50%)
<11 meters (50%)
0.06m/sec | |
| Acquisition | Signal Power
Hot Start (50%)
Warm Start (50%)
Cold Start (50%) |
-130.0 dB
<24 sec
<38 sec
<90 sec |
-136.0 dB
<400 sec |
| Dynamics | Acceleration
Motional jerk |
4g (39.2 m/sec2)
20 m/sec3 | |
| Datum | WGS-84 | | |
| Environmental Specifications |
| Temperature |
Operating |
-20°C to +55°C |
| Humidity |
5% to 95% RH non-condensing at +40°C |
| Casing | IP 66 standard |
| Vibration * |
0.008 g2/Hz
0.05 g2/Hz
-3 dB/octave |
5 Hz to 20 Hz
20 Hz to 100 Hz
100 Hz to 900 Hz |
| Shock * |
Operatinal
Non-operatinal |
40g for 11 milliseconds
75g for 6 milliseconds |
| Physical Specifications |
| Assembly | TBD |
| Size | 170 mm x 170 mm x 60 mm
350 mm x 95 mm x 50 mm |
| Weight | 1500 gram |
| Electrical Charactestics |
| Primary Power | |
| Battery life | Up to 24 month, (10 reports/day, GSM coverage, -130 dBm GPS) |
| Connectors | Optional |
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Operation time Graph
The graph below is a worst case scenario with very bad GPS conditions and GSM conditions, there is also a safety margin added to the operation time of 1.5.
Under normal circumstances operation time is longer then stated in the Graph below.
Power discussion:
The TrailTrac unit is available in two versions, either with alkaline batteries or Lithium batteries. The difference between them is:
Alkaline
- Cheap
- Lower capacity 18 Ah
- Does not work in temperature below -5 Deg C
Lithium
- Expensive
- Higher capacity 26 Ah
- Works in low temperature, down to -50 Deg C
Power Facts
- Every time the TrailTrac computes and transmits a position it consumes approximately 4,3mAh under worst condition
- The TrailTrac consumes approximately 0,05 mA in sleep mode (in between the fixes)
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