Technical Specification; Basic Specification; Acquisition Time (Averaged); Receiver Accuracy - Holux GR-231 User Manual

HOLUX GR-231 Bluetooth GPS Receiver Manual

4. Technical Specification

4.1. Basic Specification

Chipset：
Channels： 12 parallel satellite-tracking channels.
Frequency： 1575.42 MHZ.
Receiver： L1, C/A code.

4.2. Acquisition Time (averaged)

Reacquisition： 0.1sec.
Snap start： < 3 seconds (at < 25 minutes off period)
Cold start： < 45 seconds.
Warm start：< 38 seconds .
Hot start： < 8 seconds
Update rate： 1 second continuously

4.3. Receiver Accuracy

Normal： 5-25 meters CEP without SA.
Enable EGNOS or WAAS：(Only for the standard software)
Position:
Velocity： within 0.1 meters / second
Time： 1 microsecond synchronized GPS time

4.4. Use Limitation

Altitude： < 18,000 meters (60,000 feet)
Velocity: ：< 515 meters / second (700Knots)
Acceleration： 4 G.
Jerk： 20 meters / second, max

4.5. Power Supply

External Voltage: 5VDC +/- 10%
Batteries：
Main Power: Built-in rechargeable Lithium-ion for system power.
Backup Power: Rechargeable Lithium-ion battery for memory & RTC backup.
Working voltage: 80-90mA (Normal mode).
Working period (In Battery full power status):
Protection circuit on GR-231 should stop charging the cell when
SiRF Star IIe/LP chipset
< 2.2 meters, horizontal 95% of time
< 5 meters, Vertical 95% of time
30mA (Power Saving).
> 9 hours on Continue mode.
> 16 hours on Power Saving mode.
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