GT-8536 GPS Timing Module

Furuno | GPS Timing Module
The GT-8536 features an identical footprint to the Motorola M12M device for all applications requiring a highly accurate timing device operating in a M12 protocol environment. It surpasses the Motorola M12M. It is a GPS timing product based on the Opus 5 device
The GT-8536 has excellent 1PPS output with position hold and automatic site survey software, T-RAIM Select, T-RAIM Alarm and Status messages.


  • Identical footprint to the Motorola M12M device
  • Excellent 1PPS output
  • Position hold
  • Automatic site survey software
  • Highly accurate


GNSS Reception Capability
  • GPS L1 C/A, SBAS L1 C/A
GNSS Reception
  • 14 channels (GPS, SBAS)


  • GPS
  • Tracking: -159 dBm
  • Acquisition: -147 dBm
1PPS Timing Accuracy
  • 15ns (1σ) ( @-130 dBm)
  • 50ns (1σ) ( @-150 dBm)
TTFF (Typical)
  • Hot Start: <5 sec (@-130 dBm)
  • Warm Start: 70 sec (@-130 dBm)
  • Cold Start: 70 sec (@-130 dBm)
Supply Voltage
  • 3.3VDC
Power Consumption
  • Acquisition Mode: 52 mA
Backup Supply 
  • 2.2 to 3.6VDC / 20μA (Typ) (VCC=0V)
Operating Temperature
  • -40°C to +85°C
  • 40mm x 40mm x 5.8mm 
  • M12 Binary