Timing Synchronization
Furuno’s GPS/GNSS receiver chips and modules are designed for accurate positioning and precision timing applications. The products support major global GNSS constellations making them truly universal solutions.
The new GT-100-based chips and modules are capable of L1 and L5 dual band support for exceptional reception and precision timing and location detection.
Please contact us for more information.
About Furuno Electronic Co.
Founded in 1951, Furuno Electric Co., Ltd., is a worldwide leader in navigation and remote management technologies. The company’s GNSS/GPS chips and modules support precision timing and positioning solutions. The products support all major navigation satellite constellations such as GPS, Galileo, BeiDou, GLONASS, QZSS and SBAS.
Timing Synchronization Accessories
To order accessories for Juniper Networks’ precision timing synchronization system, please click “Order Now” below.
Documentation & Software
Visit the Furuno download page to access additional product documentation and software.
Timing Products
GT-100/GT-9001/GT-90 Timing Multi-GNSS Receiver Module
The world’s highest stability, less than 4.5 ns (1sigma) and lowest degradation of stability in harsh urban environments.
- Unrivalled performance for 5G RAN, Radio Systems, Time servers
- Dual band, supporting all constellations (GT-100)
- Highly precise time & ultra-low jitter 1pps synchronized with UTC
- High Robustness – guaranteed performance even if only L1 or only L5 are used
- Programmable frequency clock outputs synchronized with UTC (GT-9001 & GT-100)
- Excellent performance even in harsh environments
Features
- The GT-100, GT-9001 and GT-90 are a new generation of GNSS receiver modules for time synchronization that enable GNSS reception worldwide.
- GT-100 is full-featured highly robust model, supporting dual-frequency band reception (L1 and L5).
- GT-9001 supports L1 and delivers high stability 1PPS and programmable clocks on three channels.
- GT-90 supports L1 and provides a 1 PPS high stability output.
- All models feature the world’s best-in-class time stability of less than 4.5 ns (1 sigma) and are equipped with Dynamic Satellite Selection™ (DSS). DSS is the leading multipath-resistant algorithm developed by NTT that minimizes degradation of time performance even when the antenna is installed in urban areas or near a window.
GT-88 Timing Multi-GNSS Receiver Module
Extremely high stability of 4.5ns (1sigma) using a single band receiver
The GT-88 is the high-stability, high-accuracy timing Multi-GNSS receiver.
It incorporates Dynamic Satellite Selection™, which is a new satellite signal selection algorithm developed by NTT. Thanks to that GT-88 permits GNSS antennas to be mounted more freely than ever before including wall mounting and window mounting installations.
GT-87 Timing Multi-GNSS Receiver Module
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.
GF-8801/02/03 Multi-GNSS Disciplined Oscillator
Ultra-small size form factor featuring atomic clock level frequency stability with 24h holdover
GF-88 series is a full-featured multi-GNSS disciplined oscillator (GNSSDO), embedded with multi-GNSS receiver, OCXO, LDO regulator and antenna detection circuit in a compact pin-header module.
It provides outputs of one-second pulse (1PPS), synchronized with Coordinated Universal Time (UTC), and reference frequency (10MHz) signal.
Combined with ultra-miniature OCXO, GF-8802 / 8803 (approx. 34mm x 27mm) builds up a holdover function which can maintain within 10μs / 24 hours(ex.GF-8803) in case that GNSS falls into unlock. There is also low-profile module called GF-8801 embedded with TCXO on the same form factor. 3 available models save significant time and effort during product design.
TB-1 Field Time Sync Generator
Just connect to your usual instrument.
Light, fast, accurate! Palm sized “Atomic Clock”
With an embedded high precision OCXO, TB-1 is designed as a portable GNSS reference signal generator for RF system maintenance and R&D in the field.
It provides a 1 pulse per second (1PPS) and a 10MHz reference frequency, both synchronized with UTC, which can be used in digital broadcast, 5G and V2X system field testing for time synchronization and frequency measurement purposes.
Downloads
GPS (GNSS) Antennas
AU-18 Multi-GNSS antenna
Antenna for GPS signal (L1 band) and GLONASS (G1 band) reception
Features
- Suitable for use with GN-87, GV-87, and GT-87 receiver modules.
- The antenna assembly consists of a patch antenna for receiving GNSS signals and a preamplifier for signal amplification.
- Power supply to the antenna preamplifier must be provided by the application on the same RF signal trace as the GNSS RF signal is carried to the application.
- Available with a choice of antenna connector type. The choice is SMA, BNC, GT-5 or SMB.
- The antenna has an internal magnet so that it can be fixed on a metallic surface.
- Easy to use antenna. Does not require RF or antenna knowledge.
AU-15 GPS Antenna
Antenna for GPS signal reception
This antenna is designed especially for Automotive and industrial GPS receiver.
Features
- Antenna for GPS signal reception (L1 band)
- For timing applications and with high noise resistance, Multi-GNSS antenna AU-217 offers the best solution.
The antenna consists of the antenna for receiving GPS signal and the preamplifier for signal amplification. - Power supply for preamplifier operation is supplied by overlapping the signal line.
- The antenna connector type consists of BNC, GT-5 and SMB.
- The antenna has an internal magnet so that it can be fixed on a metallic surface.
AU-217 Multi-GNSS antenna (For Timing)
Antenna for GPS, GLONASS, Galileo and QZSS reception.
Ideal for use in difficult site enviorments including urban areas, weather and RF interference areas
The AU series is a GPS/GNSS antenna for Timing that is intended for installation on buildings. The AU-217 has excellent weather and interference resistance, and has the capability to filter radio waves that adversely affect the GNSS receiver (such as radio waves for broadcasting and satellite communications). The AU-217 is multi-constellation compatible and can receive signals including GPS (USA), GLONASS (Russia), Galileo (Europe) and QZSS (Japan). When combined with a GNSS receiver that supports these satellite constellations, it is also suitable for use in urban areas with poor sky visibility.
Features
- Supports longer antenna cable lengths
- High 40dB gain and wide range of power voltages from 2.5 to 16 VDC
- IP67 compliant waterproof and dustproof
- Standard TNC Connection
- Easy installation with an optional antenna mounting bracket
- Developed specifically for GPS/GNSS Timing applications
- Timing GNSS receiver module: GT-87/GT-88
- GNSS Disciplined Oscillator: GF-87 series/GF-88 series
Downloads
GPA-017 GPS Antenna (For Timing)
Antenna for GPS, Galileo and QZSS L1 (1575.42MHz) reception.
Ideal for outdoor installation in harsh weather conditions.
The GPA series is a GPS/GNSS antenna for Timing that is intended for installation on buildings.
GPA-017 is a compact and lightweight package designed to withstand harsh outdoor environments including rain, wind, sunlight and temperature changes.
Features
- Standard type GPS antenna
- Standard TNC Connection
- Easy installation with optional use of antenna mounting bracket
GPS Antenna (For Timing) Model GPA-014
Antenna for GPS, Galileo and QZSS L1 (1575.42MHz) reception.
Ideal for use in location with frequent/heavy snowfalls
The GPA series is a GPS/GNSS antenna for Timing that is intended for installation on buildings.
GPA-014B is designed to withstand harsh outdoor environments including rain, wind, sunlight and temperature changes, and is also equipped with a radome that prevents signal attenuation due to snow accumulation.
Features
- GPS antenna for snowy areas
- Standard BNC Connection
- Water resistant equivalent to JIS C 0920 IP-X6
- Easy installation with optional use of antenna mounting bracket
- Recommended Timing GPS
- Timing GNSS receiver module: GT-8777
Antenna Fixing Bracket
CP20-01111/CP20-00403/PM-001
GPS/GNSS antenna can be firmly fixed to the building
When using the GNSS receiver at a fixed point for a time synchronization application, use this dedicated antenna mounting bracket. Provides a firm mounting to the building.
Features
- The necessary parts for installing the antenna are packaged.
Recommended antenna
| GNSS Antenna | Antenna Fixing Bracket |
|---|---|
| AU-217 | CP20-01111 or PM-001 |
| AU-117 | CP20-01111 |
| GPA-017 | CP20-01111 |
| GPA-014 | CP20-00403 |
Downloads
Coaxial lightning arrestor Model TVA-03C/TVA-03V
TVA-03C/TVA-03V
Protect GPS/GNSS receiver from lightning surges
The coaxial lightning arrestor covers GPS (L1), GLONASS (L1), and Galileo(E1). It supports combination with GPS receivers as well as multi-GNSS receivers. It demonstrates safe lightning surge performance that clears IEC61000-4-5 and JIS C 5381-21.
Features
- Protect GPS/GNSS receiver from lightning surges.
- TVA-03C supports direct lightning surges, and TVA-03V supports induced lightning surges.
- The best lightning surge performance can be achieved by combining two models with proper grounding.
- Recommended products
- For all Furuno GPS/GNSS receivers.
Downloads
TVA-03C Hardware Specifications
TVA-03V Hardware Specifications
