GM-77 is a GPS Mouse receiver build-in well-known SiRF StarIII GPS chipset. GM-77 provides customer high position, velocity and time accuracy performances as well as high sensitivity and tracking capabilities. Customers benefit from the strength of both companies. Thanks to the low power consumption technology, the GPS-Mouse receiver is ideal for many portable applications such as PDA, Tablet PC, smart phone etc.
Features
Built-in high performance SiRF Star III low power chipset.
Current consumption 40mA
20 channels parallel.
Average Cold Start in 42 seconds.
-159 dBm sensitivity in tracking mode
NMEA0183 compliant protocol
Extreme fast TTFF at low signal level
Applications
Automotive
Personal/Portable Navigation (PDA)
Geographic Surveying
Sports and Recreation
Marine Navigation
Fleet Management
AVL and Location-Based Services
Specifications
General |
Accuracy |
| GPS Chip |
SiRF Star III LP chipset |
Position |
| Frequency |
L1, 1575.42MHz |
10 meters, 2D RMS
7 meters 2D RMS, WAAS corrected
1-5 meters, DGPS corrected |
| C/A Code |
1.023MHz chip rate |
|
0.1 m/sec |
| Channels |
20 CH |
Time |
1ms synchronized to GPS time |
| |
Datum |
| |
WGS-84 |
Sensitivity |
Dynamic Conditions |
| To ¡V 159Bm Tracking, Superior Urban Canyon Performance |
Altitude |
<18,000 m (60,000 feet) |
Acquisition Rate |
Velocity |
<515 m/sec (1,000 knots) |
| Cold Start |
42 sec, average |
Acceleration |
<4g |
| Warm Start |
38 sec, average |
Motional Jerk |
<20 m/sec |
| Hot Start |
6 sec, average |
GPS Protocol |
| Reacquisition |
0.1sec, average |
Default: NMEA-0183,
GGA(1), GSA(1), GSV(1), RMC(1), Band rate 9600 bps,
Data bit : 8, stop bit : 1 |
| Accuracy |
Snap start 2 sec, average |
Power |
| Operation Power |
3.5~5.0 VDC+10% |
| Current Consumption |
70mA |
Device Size |
| |
3.3V |
|
Environmental |
| Operating Temperature |
- 20 °C to + 80 °C |
Accessories |
No |
| Relative Humidity |
5% to 95% non-condensing |
|
Hardware Interface
The GM-77 includes an antenna in a unique style waterproof gadget. We can manufacture four kinds of Connector cable to suit your demands.
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