The NaviSys GR-701 is a rugged, high-performance USB GPS receiver built for industrial, automotive, and precision-timing applications. Powered by the u-blox 7 chipset, this compact smart antenna offers ultra-sensitive tracking, multi-interface support, and fast acquisition times—even in challenging environments.
Designed for flexibility, the GR-701 supports USB, TTL, or RS232 mini-DIN connections and is built to withstand harsh outdoor or industrial conditions with IPX7 waterproofing and an extended operating temperature range from -40°C to 85°C.
Key Features
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Powered by u-blox 7: Low power, high-sensitivity GNSS chip for excellent signal stability
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Multi-constellation support: Choose between GPS/QZSS (default) or GLONASS
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Ultra-high sensitivity: Tracking sensitivity up to -162 dBm
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High update rate: Default 1Hz, supports up to 10Hz for real-time tracking
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Interfaces: USB, RS232, TTL with a variety of connectors (PS/2, RJ45, DB9, USB, Microfit)
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PPS output: Precise Pulse Per Second support including PPS over USB
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SBAS support: WAAS, EGNOS, and MSAS
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Time Service: High-precision PPS time output – GPS RMS 30ns, GLONASS RMS 50ns
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Operating Voltage: Supports both 12V and 24V input
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Built-in magnet for secure mounting
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Status LED for position fix indication
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AGPS support (OMA SUPL compliant) for faster fix
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Compatible with GPSD PPS (GR-701W model)
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OS Compatibility: Full support for Linux, Android, and Windows (as a Windows Location Sensor)
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Durable & weatherproof: IPX7-rated enclosure, waterproof and dust-resistant
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External backup power pin: Ideal for extended temperature or power-critical environments
Typical Applications
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🚗 Fleet and vehicle navigation systems
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📡 Time synchronization for industrial networks or telecom
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🚛 Automatic vehicle location (AVL)
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🚧 Precision positioning for remote or embedded systems
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🛰️ Custom GNSS integration and development
📈 Technical Specifications
Parameter |
Specification |
Receiver Type |
56-channel GNSS (GPS & QZSS L1 C/A; GLONASS L1OF) |
SBAS Support |
WAAS, EGNOS, MSAS |
Horizontal Accuracy |
2.5 m (GPS), 4.0 m (GLONASS), 2.0 m (SBAS) |
Velocity Accuracy |
< 0.1 m/s; Heading: < 0.5° @ 30 m/s |
Time To First Fix |
Hot: 1s; Warm: 28s; Cold: 30s (GPS @ -130 dBm) |
Tracking Sensitivity |
-162 dBm (GPS), -158 dBm (GLONASS) |
Acquisition Sensitivity |
-148 dBm (GPS), -140 dBm (GLONASS) |
PPS Signal Accuracy |
RMS: 30 ns (GPS), 50 ns (GLONASS) |
Max. Altitude |
50,000 m |
Max. Velocity |
< 1,852 km/h |
Data Output |
NMEA 0183 v2.3 (GGA, GLL, GSA, GSV, RMC, VTG, TXT) |
Serial Interface |
UART 9600 bps, 8N1 |
Update Rate |
Default: 1Hz, Max: 10Hz |
Connector Options |
PS/2, RJ45, DB9, USB, Microfit |
Cable Length |
0.1 m to 15 m |
Power Supply |
12V / 24V, backup battery included |
Operating Temperature |
-40°C to +85°C |
Waterproof Rating |
IPX7 (fully waterproof when submerged up to 1m) |
📦 Package Includes
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GR-701 GPS Receiver Unit
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USB or selected interface cable (customisable)
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Integrated backup battery
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Built-in magnet base
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Documentation & interface guide
🧭 Why Choose the GR-701?
The NaviSys GR-701 is an ideal solution when performance, durability, and versatility matter. Whether you're building custom vehicle systems, tracking critical infrastructure, or deploying timing devices in the field, the GR-701 delivers industrial-grade precision with plug-and-play ease.
🔧 For technical support, email: service@navisys.com.tw
🌐 Visit: www.navisys.com.tw
Manufacturer Address:
2F, No.56, Park Ave. II, Science-Based Industrial Park, Hsinchu 300, Taiwan (R.O.C.)
Tel: +886-3-5632598 | Fax: +886-3-5632597