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

Powered by u-blox 7: Low power, high-sensitivity GNSS chip for excellent signal stability
Multi-constellation support: Choose between GPS/QZSS (default) or GLONASS
Ultra-high sensitivity: Tracking sensitivity up to -162 dBm
High update rate: Default 1Hz, supports up to 10Hz for real-time tracking
Interfaces: USB, RS232, TTL with a variety of connectors (PS/2, RJ45, DB9, USB, Microfit)
PPS output: Precise Pulse Per Second support including PPS over USB
SBAS support: WAAS, EGNOS, and MSAS
Time Service: High-precision PPS time output – GPS RMS 30ns, GLONASS RMS 50ns
Operating Voltage: Supports both 12V and 24V input
Built-in magnet for secure mounting
Status LED for position fix indication
AGPS support (OMA SUPL compliant) for faster fix
Compatible with GPSD PPS (GR-701W model)
OS Compatibility: Full support for Linux, Android, and Windows (as a Windows Location Sensor)
Durable & weatherproof: IPX7-rated enclosure, waterproof and dust-resistant
External backup power pin: Ideal for extended temperature or power-critical environments

Typical Applications

🚗 Fleet and vehicle navigation systems
📡 Time synchronization for industrial networks or telecom
🚛 Automatic vehicle location (AVL)
🚧 Precision positioning for remote or embedded systems
🛰️ 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

GR-701 GPS Receiver Unit
USB or selected interface cable (customisable)
Integrated backup battery
Built-in magnet base
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

GPS Systems, Mapping Software and Accessories