User Guide

12
2. Technical Specifications
2.1. Electrical Characteristics
2.2 LED INDICATOR
Chipset
General
Accuracy
Datum
Acquisition
Rate (Open Sky
& Stationary
Requirements)
Dynamic
Conditions
Power
Dimension
Weight
Items
GSP3F
Frequency
C/A code
Channels
Position
Velocity
Time
Default
Other
Reacquisition
Snap start
Hot start
Warm start
Cold start
Altitude
Velocity
Acceleration
Jerk
Main power input
Power consumption
Supply Current
Backup power
43mm L x 42mm W x 13mm H
23g
Description
SiRF StarIII technology
L1, 1575.42 MHz
1.023 MHz chip rate
20
10 meters, 2D RMS
5 meters 2D RMS, WAAS corrected
<5meters(50%), DGPS corrected
0.1 meters/second
1 microsecond synchronized to GPS time
WGS-84
selectable for other Datum
0.1 sec., average
1 sec., average
8 sec., average
38 sec., average
42 sec., average
18,000 meters (60,000 feet) max.
515 meters/second (1000 knots) max.
4g, max.
20 meters/second3, max.
5V DC input.
≈ 0.38 W (continuous mode)
≈ 75mA
3 V Lithium-Ion rechargeable battery
LED flashing 0.25Hz
LED flashing 1Hz
Signal Searching
Position Fixed
APPENDIX B
DEFAULT VALUES
The product has the following factory preset default values:
Datum:000 (WGS-84)
NMEA Enable Switch:GGA ON
GLL ON
GSA ON
GSV ON
RMC ON
VTG ON
Checksum ON
Baud Rate:4800 Baud
Elevation Mask:5 degrees
DOP Mask:DOP Select: Auto
GDOP: 20
PDOP: 15
HDOP: 8
Receiver Operating Mode:Normal Mode (without 1PPS)
Commands can be issued to the HI-204L to change the settings of the
receiver. The new settings will remain effective on next power-on as
long as the on-board rechargeable backup battery is not discharged.
After the backup battery is discharged, factory preset default settings
will be used.