Home > Leadtek LR9548SX GPS Receiver
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LEADTEK
LR 9548SX(SiRF STAR III/LPx)
| Feature |
Item |
Description |
| Chipset |
GSC 3f |
SiRFstarIII low power single
chipset |
| General |
Frequency |
L1, 1575.42 MHz |
| C/A code |
1.023 MHz chip
rate |
| Channels |
20 |
| Accuracy |
Position |
10 meters, 2D RMS |
| 5 meters 2D RMS,
WAAS corrected |
| <5meters(50%) |
| Velocity |
0.1 meters/second |
| Time |
1 microsecond
synchronized to GPS time |
| Datum |
Default |
WGS-84 |
| Other |
selectable for
other Datum |
Time to First Fix (TTFF)
(Open Sky & Stationary
Requirements) |
Reacquisition |
0.1 sec., average |
| Snap start |
1 sec., average |
| Hot start |
1 sec., average
typical TTFF |
| Warm start |
38 sec., average
typical TTFF |
| Cold start |
42 sec., average
typical TTFF |
| Dynamic
Conditions |
Altitude |
18,000 meters (60,000 feet) max. |
| Velocity |
515 meters/second
(1000 knots) max. |
| Acceleration |
4g , max. |
| Jerk |
20 meters/second
3, max. |
| Power
|
Main power input |
3.3 ~ 5.0 VDC input |
| Power consumption |
≈165 mW
(continuous mode) |
| Supply Current |
≈49 mA |
| Backup Power |
1.65 ~ 5.0 VDC
input. |
|
Serial
Port |
Electrical
interface |
Two full duplex
serial TTL interface. |
| Protocol messages |
NMEA-0183@4800
bps (Default) |
| Time-1PPS Pulse
|
Level |
TTL |
| Pulse duration |
The 1PPS pulse
width is 1 μs, this 1PPS is NOT suited to steer various oscillators
(timing receivers, telecommunications system, etc). |
| Time reference |
At the pulse
positive edge. |
| Measurement |
Aligned to GPS
second, ± 1 microsecond |
| Environmental
Characteristics |
Operating temperature range |
-30 °C to +85 °C |
| Storage temperature range |
-55 °C to +100 °C |
| Physical
Characteristics |
Length |
24 mm ± 0.1mm ( 0.94in) |
| Width |
20 mm ± 0.1mm ( 0.79 in) |
| Height |
2.9 mm ± 0.1mm ( 0.11 in) |
| Weight |
2.5g |
| Software |
Core of firmware |
SiRF GSW 3.2.2 |
| Baud rate |
4800, 9600, 19200, 38400 or 57600 bps (default
4800) |
| Code type |
NMEA-0183 ASCII |
| Datum |
WGS-84 |
| Protocol message |
GGA(1sec), GSA(5sec), GSV(5sec),
RMC(1sec),VTG(1sec) |
| Output frequency |
1 Hz |
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