Model Number: GR-310 Brand Name: Navisys Key Specifications/Special Features: Mechine DataDimension：21 x 72 x 13.5 (mm) including USB capTechnical SpecificationsReceiver Performance DataReceiver Type：20-channel, L1 frequency, C/A code GPS:1575.42MHz

Horizontal Position Accuracy

• < 2.5m (Autonomous)
• < 2.0m (WAAS)
• (50% 24hr static, -130dBm)

Velocity Accuracy

• <0.01 m/s (speed)
• <0.01° (heading),
• (50%@30m/s)

Time To First Fix：Autonomous

Hot start：<1sec

Warm start：<35sec

Cold start：<42sec (50% -130dBm)

Sensitivity (Autonomous)

• -142dBm (acquisition)
• -159dBm (tracking)
• (-142dBm 28dB-Hz with 4dB noise figure)

Max. Update Rate：1Hz

Max. Altitude：<18,000 m

Max. Velocity：<1,852 km/hr

Protocol Support：NMEA v3.00, 4800bps N,8,1; GGA, GSA, GSV, RMC, VTG

Datum：WGS-84

SBAS Support：WAAS, EGNOS, MSAS (optional)

Dynamics：<4g

Bluetooth Data

• Version 2.0：Downward compatible with ver.1.0/1.1/1.2
• Class 2：Communication range: Up to 10 m
• Profile：SPP (Serial Port Profile)

LED Display

• Green LED：
  • Always on as position is not fixed
  • Blinks as position is fixed
• Blue LED
  • Always off w/o Bluetooth connection
  • Blinks 2s on 2s off w/ Bluetooth connection

Electrical Data

• Power Supply：3.3V~5.5 VDC
• Power Consumption：70mA/continous tracking, communicating via Bluetooth interface

Environmental Data

• Operating temperature \ Storage temperature：-20 ~ 60℃

Applications

• Vehicle navigation device
• GPS Souvenir

Features

• Compact, sleek, lightweight
• Based on SiRF’s GSC3f low power single chip
• Bluetooth version 2.0, class 2
• Both wired (USB) and wireless (Bluetooth) navigation support
• High performance: -159dBm tracking sensitivity
• Low power: 70mA at continuous tracking
• SBAS (WAAS, EGNOS, MSAS) support (optional)
• Backup battery support for faster position fix
• Green LED for GPS position fix indication
• Blue LED for Bluetooth status indication
• Sleek design for bringing as necklace or key chain
• It becomes an independent portable unit when inserted into an optional battery bank.