GT-86 GNSS Module

Furuno | GNSS Timing Module
GT-86 GNSS Timing Module

High sensitivity and high accuracy timing GPS module.

The GT-86 is a high-sensitivity, high-accuracy timing GPS receiver. It supports TRAIM and Various position modes, allowing it to output accurate and robust 1PPS synchronized with UTC time.
The GT-86 supports GPS, QZSS, SBAS, Active Anti-Jamming and Advanced Multipath Mitigation Functions.


  • Supports GPS, QZSS and SBAS
    •  In addition to high position accuracy, GV-86 achieves a superior performance to regular GPS Receiver Modules such as fast TTFF, highly improved Noise Tolerance
    •  Galileo Ready. The software can be upgraded to support concurrent Multi-GNSS reception with GPS, Galileo, QZSS and SBAS
  • Simultaneous output of time pulse (1PPS) and low jitter clock (configurable, e.g. 10MHz) synchronized with the 1PPS
  • Enable to output accurate and robust UTC time and 1PPS synchronized with UTC time
    •  1PPS accuracy: < 15 nsec (1σ) (@-130 dBm)
  • Suitable for system synchronization with low jitter clock in addition to high accuracy time pulse
    •  Configurable clock output (e.g. 10MHz), coherent with time pulse (1PPS)
  • One satellite tracking is enough to output precise 1PPS (Position Hold Mode)
  • Selectable Position Mode based on use case
    •  Position Hold Mode
    •  Position Survey Mode
  • TRAIM function detects low-integrity satellites and satellites to disregard for positioning
    •  Suitable for infrastructure developments which need high integrity.
  • Improved Noise Tolerance
  • Reduces effects of internal and external noise
    •  Active Anti-Jamming
    •  Advanced Multipath Mitigation
  • Embedded Flash ROM
  • Suitable for long-term use backed by FURUNO’s continuous support and function enhancement


GNSS Reception Capability
  • GPS L1 C/A, SBAS L1 C/A, QZSS L1 C/A
  • (Available by software update) Galileo E1B/E1C, QZSS L1-SAIF
GNSS Reception
  • 16 channels (GPS, SBAS, QZSS)
Update Rate
  • 1Hz
Sensitivity (*1)
  • GPS
    • Tracking: -161 dBm
    • Hot Start: -161 dBm
    • Warm Start: -147 dBm
    • Cold Start: -147 dBm 
    • Reacquisition: -161 dBm
1PPS Timing Accuracy
  • 15ns(1 σ)(@-130 dBm)
  • 50ns(1 σ)(@-150 dBm)
TTFF(Typical) (*1)
  • Hot Start: <5 sec (@-130 dBm)
  • Warm Start: 35 sec (@-130 dBm)
  • Cold Start: 40 sec (@-130 dBm)
Supply Voltage
  • 3.3V DC
Power Consumption
  • Acquisition Mode: 68 mA
Operating Temperature
  • -40°C to +85°C
Storage Temperature
  • -40°C to +85°C
Package Size
  • 12.2mm × 16.0mm × 2.8mm
  • 24Pin LCC( Leadless Chip Carrier)
  • eSIP (NMEA 0183 Standard Ver. 4.10)
  • Available
Multipath Mitigation
  • Available
  • (*1) Measurement platform with recommended active antenna