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StarsNav series GPS module
MTI-3/MTI-3T (patch on top) is a high sensitivity ultra low power consumption
cost efficient, compact size; plug & play GPS module board designed
for a broad spectrum of OEM system applications. This product is based
on the proven technology found in NEMERIX chipset solution. The GPS module
receiver will track up to 16 satellites at a time while providing fast
time-to-first-fix and 1Hz navigation updates. Its far-reaching capability
meets the sensitivity & accuracy requirements of car navigation as
well as other location-based applications, such as AVL system. Handheld
navigator, PDA, pocket PC, or any battery operated navigation system.
The MTI-3/MTI-3T design utilizes the latest surface mount technology and
high level circuit integration to achieve superior performance while minimizing
dimension and power consumption. This hardware capability combined with
software intelligence makes the board easy to be integrated and used in
all kinds of navigation applications or products. The module communicates
with application system via RS232 (TTL level) with NMEA0183 protocol. |
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Main Feature
Build-high performance NEMERIX chipset.
Average Cold Start
is in less than 45 seconds.
Low power consumption.
16 channels "All-in-View"
tracking.
On chip 4Mb flash
memory.
TTL level serial
ports with one for GPS receiver command message Interface, and one for
RTCM-104 DGPS input
Compact Board Size
MTI-3 ( 26.5 x 26.5 x 3.0 mm )
MTI-3T ( 26.5 x 26.5
x 7.0 mm ) for easy integration into hand-held device.
Reacquisition Time
: 0.1 seconds
Support Standard
NMEA-0183 and NEMERIX Binary protocol
Option Accurate 1PPS
Output Signal Aligned with GPS Timing
Multi-path Mitigation
Hardware
Optimum clock drift
adjustment
Technical Specifications
Electrical Characteristics
| General
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| Frequency |
L1, 1575.42 MHz |
| C/A code |
1.023 MHz chip rate |
| Channels |
16 |
| Accuracy |
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| Position |
7 meters CEP (90%) horizontal, SA off.
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| Velocity |
0.1 meters/second |
| Time |
1 microsecond synchronized to GPS time
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Datum
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| Default |
WGS-84 |
| Other |
Support different datum by request |
| Acquisition
Rate (Open sky, stationary requirements) |
| Reacquisition |
0.1 sec, average
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| Snap start |
2 sec, average |
| Hot start |
10 sec, average
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| Warm start |
38 sec, average |
| Cold start |
45 sec, average
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| Dynamic Conditions |
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| Altitude |
18,000 meters (60,000 feet) max |
| Velocity |
515 meters/second (1,000 knots) max |
| Acceleration |
4g, max |
| Jerk |
20 meters/second, max |
| Power |
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| Main power input |
3.3 ±5% VDC input |
| Power consumption |
511mW (Continuous mode)
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| Supply Current |
MTI-3 27 mA @ 3.3V(Continuous mode) |
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MTI-3 30 mA @ 3.3V(Continuous mode) including LNA |
| Serial Port |
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| Electrical interface |
One full duplex serial communication, TTL interface
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| Protocol message |
NEMERIX binary and NMEA-0183, version 3.0 with a baud rate selection
and NMEA sentence sequence / update rate.
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| Default NMEA |
GGA, GSA, GSV, RMC and VTC. 9600 baud rate, 1 start bit, 1stop
bit, no parity bit.
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| Time-1PPS
Pulse |
| Level |
TTL |
| Pulse duration |
100ms |
| Time reference |
At the pulse positive edge |
| Measurements |
Aligned to GPS second, +-1 microsecond
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Environmental Characteristics
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| Operating temperature range |
-40 deg. C to +80 deg. C |
| Storage temperature range |
-55 deg. C to +100 deg .C |
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Physical Characteristics
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| Dimension: MTI-3 |
1.043"x1.043"x0.11 (26.5x26.5x3.0mm) |
| MTI-3T |
1.043"x1.043"x0.27 (26.5x26.5x7.0mm) |
| Weight: MTI-3 |
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| MTI-3T |
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| Antenna connector: |
1.27 mm pitch 3 pin board to board |
| Interface connector |
1.27 mm pitch 10 pin / 6 pin board to board |
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Mechanical Dimensions
1. MTI-3
2. MTI-3T
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