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JS-ATP28-2 is a cost-effective, low-power multi-mode single-frequency GNSS module supporting GPS, BDS, GLONASS, Galileo, QZSS, and SBAS. Powered by a high-performance SoC positioning engine, it delivers high sensitivity, fast acquisition, and reliable positioning with interference suppression in challenging signal conditions.
Product Features
Based on high-performance GNSS SOC series
47aislenumber
Cold start acquisition sensitivity is -148dBm, tracking sensitivity is -165dBm
Gundam10Navigation update rate in Hz
Supports GPS, BDS, GLONASS, Galileo, QZSS and SBAS.Support AGPS
Indoor and outdoor multipath detection and compensation
Integrated 12 multi-tone active interference cancellers
Integrated TCXO, LNA, SAW and RTC
Compact size(28.0mm x28.0mmx8.6mm±0.3mm), suitable for space-sensitive applications
Support standard NMEA 0183 V3.01/4.10
Support 1PPS output
Performance
| parameter | Specification |
| Constellation frequency point | GPS/QZSS L1C L1C/A GLONASS L1 BDS B1I B1C Galileo E1 SBAS WAAS/EGNOS/MSAS/GAGAN |
| Sensitivity | Tracking and Navigation -165dBm |
| Cold start -148dBm | |
| First positioning time | Cold start 24s |
| Hot start 1s | |
| GNSS positioning accuracy | Level 2m |
| Vertical 3.75m | |
| Time pulse signal accuracy | 1PPS 10ns |
| Speed accuracy | GNSS 0.1m/s |
| SBAS 0.05m/s | |
| Operation limit | Acceleration 4g |
| Altitude 10000m | |
| Speed limit 100m/s | |
| Time pulse signal frequency | 1Hz |
| baud rate | 4800 - 921600bps (Default 115200bps) |
| Maximum navigation update rate | 10 Hz (default is 1Hz) |
Pin Parameters
| No. | name | I/O | describe |
| 1 | GND/PPS | G/O | Ground/time pulse signal output |
| 2 | GND | G | land |
| 3 | TxD | O | TTL output |
| 4 | RXD | I | TTL input |
| 5 | VCC | P | Power supply |
| 6 | VBAT/EN | I | Backup power/module power control switch |
Product Application
Automotive applications
Maritime navigation,fleet management
Intelligent logistics dispatching
Ground vehicle tracking and urban intelligent traffic management
smart robot*Formation drones
Personal travel and wilderness adventures .Emergency lifesaving
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