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_.webp "JS-RK26-U")
The JS-RK26-U is a dual-band (L1, L5) GNSS module with an integrated inertial navigation device, offering high performance and low power consumption. Its advanced low-power design optimizes multi-band and multi-mode signal tracking while enhancing positioning and TTFF with anti-multipath and interference technology. Ideal for rail, marine, drone, and automotive navigation applications.
Product Features
Based on high-performance SOC series
Built-in inertial navigation
Supports IMU integrated navigation function
Low power consumption , high performance
Indoor and outdoor multipath detection and compensation
Features 200 tracking channels and a dedicated search engine
Update frequency up to 10Hz
Intelligent interference detection and suppression
Supports AGPS
Support SBAS
Small size ( 16.2mm*12.2mm*2.3mm±0.3mm ), lightweight (<1.1g)
Supports standard NMEA 0183 protocol and RTCM 3.X
Supports adaptive installation
Performance Indicators
| Category | Specification |
| Constellation Frequency | GPS L1 L5 |
| BDS B1I B1C B2I B2B B2A | |
| Galileo E1 E5 | |
| GLONASS G1 | |
| QZSS L1 L5 | |
| IRNSS L5 | |
| Sensitivity | Tracking and navigation: -165 dBm |
| Re-acquisition: -159 dBm | |
| Hot start: -159 dBm | |
| Cold start: -148 dBm | |
| First positioning time | Cold start: 28 s |
| AGPS: 1.5 s | |
| Warm start: 1 s | |
| Positioning accuracy | Single point positioning<br>Horizontal: 1.0 m CEP<br>Vertical: 2.0 m CEP |
| RTK<br>Horizontal: 1.0 cm + 1 ppm CEP<br>Vertical: 1.5 cm + 1 ppm CEP | |
| Speed accuracy | 0.1 m/s CEP |
| Tracking Channels | 200 |
| INS | GNSS signal loss within 120 seconds: Inertial navigation error 5% |
| Application Permission | Dynamic ≤ 4 g |
| 20,000 m in height | |
| Speed 500 m/s | |
| Baud Rate | 90 – 921600 bps (default 115200 bps) |
| Maximum update rate | 10 Hz (default 1 Hz) |
Pin Parameters
| Pin number | Pin Name | I/O | Description |
| 1 | BOOT | - | Reserved |
| 2 | D_SEL | - | Reserved |
| 3 | TIMEPULSE | O | 1PPS, pulse per second (keep on if not in use) |
| 4 | EXTINT | - | Reserved |
| 5,6,7,15,16,17 | RES | - | Reserved |
| 8 | RESET_N | O | Reset pin (low activation, stays open when not in use) |
| 9 | VCC_RF | O | Output voltage RF band (keep it on if not in use) |
| 10,12,13,24 | GND | - | Ground |
| 11 | RF_IN | I | GNSS signal input |
| 14 | LNA_EN | - | Reserved |
| 18 | SDA | I/O | IIC is for internal inertial navigation use only. |
| 19 | SCL | I/O | IIC is for internal inertial navigation use only. |
| 20 | TX | O | TTL output (keep on when not in use) |
| 21 | RX | I | TTL input (keep on when not in use) |
| 22 | V_BAT | I | Backup voltage power supply |
| 23 | VCC | P | Main power supply |
Product Application
Emergency Rescue
Automotive Applications
AVL and location-based services
Maritime navigation and fleet management
Intelligent logistics scheduling
Drone applications
Rail transit applications
UAV
Protocols
| Protocol | Type |
| NMEA 0183 | Input/Output, ASCII |
| Binary | Private binary protocol |
| RTCM3.X | Input/Output, MSM4 or MSM7 (configurable) |
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