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 Ct-G551 (1.8V) |
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The Ct-G551 GPS module is a high sensitivity, low power, Surface Mount Device (SMD) that
fully utilized SiRFstarV upgraded features. This 48-channel Global Positioning System (GPS)
and Global Navigation Satellite System (GLONASS) receiver is designed for a wide range of
OEM applications and is based on the GPS signal search capabilities of the SiRFstarV
CSRG05e ROM chipset, SiRF’ s newest chipset technology. The Ct-G551 provides flexible bus
interfaces (UART).
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| Feature |
Item |
Description |
| Chipset |
GSD5e/ROM base |
SiRF starV low power single chipset |
| General |
Frequency GPS |
L1, 1575.42 MHz |
| Frequency GLONASS |
L1, 1602~1615 MHz |
| C/A code |
1.023 MHz chip rate |
| Channels |
48 |
| Sensitivity GPS |
-164 dB |
| Sensitivity GLONASS |
-161 dB |
| Accuracy |
Position |
<2.5 meters |
| Velocity |
0.01 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)
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Reacquisition |
0.1 sec., average |
| Snap start |
1 sec., average |
| Hot start |
1~2 sec. |
| Warm start |
9~15 sec. |
| Cold start |
25~35 sec. |
Dynamic Conditions |
Altitude |
18,000 meters (60,000 feet) max. |
| Velocity |
515 meters/second (1000 knots) max. |
| Acceleration |
4g, max. |
| Jerk |
20 meters/second3, max. |
| Power |
Main power input |
1.71 ~ 1.89 VDC input |
| Power consumption |
Average 60mA (Tracking Mode) |
| Backup Power(V_RTC) |
1.71 ~ 1.89 VDC input |
| Serial Port |
Electrical
interface |
Default UART |
| Protocol messages |
NMEA-0183@4800 bps |
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