• GNSS for Time Sync
Timing Multi-GNSS Receiver Module

Model GT-87
  • Old Products

High sensitivity and high accuracy timing Multi-GNSS Receiver Module

The GT-87 supports TRAIM and various position modes, allowing it to output accurate and robust 1PPS synchronized to UTC time.
The GT-87 supports GPS, GLONASS, QZSS, SBAS.

New product: High robustness with dual frequency band reception of L1 and L5. The GT-100 can also deliver programmable frequency clock outputs.

  • GNSS (Timing, Automotive/Industrial)

Features

Multi-GNSS, Concurrent reception of GPS and GLONASS

Simultaneous output of time pulse (1PPS) and low jitter clock (configurable, 4 kHz to 40 MHz) synchronized with the 1PPS

Enable to output accurate and robust UTC time and 1PPS synchronized with UTC time

Single satellite tracking capable operations (except Navigation Mode)

Detect/Disable low integrity satellites (TRAIM function)

Improved Noise Tolerance

Reduces effects of internal and external noise

Embedded Flash ROM

Suitable for long-term use backed by FURUNO’s continuous support and function enhancement

Enhance performance in combination with recommended antenna

AU-300 Multi-GNSS Timing Antenna delivers both high stability and high robustness.

Specifications

General

GNSS Reception Capability

GPS L1 C/A, GLONASS L1OF, QZSS L1 C/A, SBAS L1 C/A

GNSS Reception

26 channels (GPS, GLONASS, QZSS, SBAS)

Update Rate

1Hz

Sensitivity

GPS
Tracking: -161 dBm
Hot Start: -161 dBm
Warm Start: -147 dBm
Cold Start: -147 dBm
Reacquisition: -161 dBm

GLONASS
Tracking: -157 dBm
Hot Start: -157 dBm
Warm Start: -143 dBm
Cold Start: -143 dBm
Reacquisition: -157 dBm

*Measurement platform with recommended active antenna

Position Accuracy (Horizontal)

GPS:2.5m(CEP)
GPS+SBAS:2.0m(CEP)
GPS+SBAS+GLONASS:2.0m(CEP)

*Measurement platform with recommended active antenna

1PPS Stability

15ns(1σ)

Clock Output

4 KHz to 40 MHz

TTFF (Typical)

Hot Start: <5 sec (@-130 dBm)
Warm Start: 35 sec (@-130 dBm)
Cold Start: 35 sec (@-130 dBm)

*Measurement platform with recommended active antenna

Supply Voltage

3.3VDC

Current Consumption

Acquisition Mode: 62.5 mA

Backup Supply

1.4 to 3.6VDC / 9 μA (Typ)

Operating Temperature

-40°C to +85°C

Storage Temperature

-40°C to +85°C

Package

24Pin LCC (Leadless Chip Carrier)
12.2mm×16.0mm×2.8mm

Protocol

eSIP (NMEA 0183 Standard Ver 4.10)
M12 Binary

Interfaces

UART, Time Pulse (1PPS), Clock

Anti-Jamming

Available

Multipath Mitigation

Available

Drawing

Evaluation Kit

GT-87 Evaluation Kit is available to evaluate the performance of GT-87.
The Evaluation Kit can supply power and communicate with USB interface.

FEATURES

5VDC Power supply through USB bus power
Serial communication through USB
1PPS output from the SMA connectors
SMA antenna connection
Outer size is (w) 110mm x (D) 112mm x (H) 30mm
Weight is about 260g
Accessories are USB cable, GPS-GLONASS Antenna and CD ROM containing the Communication Software, the USB driver and the documentations

Quote Request

Please fill out the quote form and our staffs will respond to you shortly.

This is a quote form only for GNSS receivers for time synchronization.
For other contents, please contact us using the respective inquiry form.

Downloads

Name Remarks

【System requirements】
OS
Windows® 7(64bit) / 10(64bit)
Display resolution
1024x768 or higher

Inquiries about GNSS Products