| Feature |
Item |
Description |
| 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 |
| Hot start |
1 sec., average typical TTFF |
| Warm start |
38 sec., average typical TTFF |
| Cold start |
42 sec., average typical TTFF |
| Snap start |
1 sec., average |
Dynamic Conditions |
Altitude |
18,000 meters (60,000 feet) max. |
| Velocity |
515 meters/second (1000 knots) max. |
| Acceleration |
4g, max. |
| Jerk |
20 meters/sec.3 max. |
| Power |
Main power |
+3.3 ~ 5.0 V |
| 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 |
| Protocol |
NMEA-0183@4800 bps (default) |
| Time-1PPS Pulse |
Level |
TTL |
| Pulse duration |
The 1PPS pulse width is 1μs, this 1PPS is NOT suited to steer various oscillators (timing receivers,telecommunications system, etc. |
| Time reference |
At the pulse positive edge |
| Measurements |
Aligned to GPS second, ± 1 microsecond |
Ct-T30
