4. Technical Specification
4.1. Basic Specification
Chipset
：
SiRF Star III chipset
.
Channels
：
20 parallel satellite-tracking channels.
Frequency
：
1575.42 MHZ.
Receiver
：
L1, C/A code.
4.2. Acquisition Time (averaged)
Reacquisition
：
0.1sec.
Cold start
：
< 42 seconds.
Warm start
：
< 38 seconds .
Hot start
：
< 1 seconds
4.3. Receiver Accuracy
Normal
：
5-25 meters CEP without SA.
Enable EGNOS or WAAS
：
Position: < 2.2 meters, horizontal 95% of time
< 5 meters, Vertical 95% of time
Velocity
：
within 0.1 meters / second
Time
：
1 microsecond synchronized GPS time
4.4. Use Limitation
Altitude
：
< 18,000 meters (60,000 feet)
Velocity:
：
< 736 meters/ second (1000Knots)
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: 75-85mA (Normal mode).
30mA (Power Saving).
Working period (In Battery full power status):
> 10 hours on Continue mode.
> 16 hours on Power Saving mode.
Protection circuit on DA-80200 should stop charging the cell when
over-temperature condition --50 occurs.
6
Summary of Contents for DA-80200
Page 1: ...User s Guide DA 80200 ...
