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GT-100 Image

The GT-100 from Furuno is a Multi-GNSS Timing Receiver Module that supports L1/L5 band reception. It delivers three outputs, including 1 pulse per second (1PPS) synchronized with UTC as well as user-programmable frequencies. The outputs can be set as required to 10 MHz, 2.048 MHz, 19.2 MHz, etc., commonly used in a variety of wireless communications systems. It has best-in-class time stability of less than 4.5 ns (1 sigma) and is equipped with Dynamic Satellite Selection™ (DSS) which is a 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. This module is compliant with G.8272 PRTC-A and PRTC-B.

The GT-100 supports short-term holdover, which maintains constant performance even if GNSS satellite signals are interrupted for a short period of time. This module mitigates the effects of jamming signals automatically and provides real-time notification to the user of the jamming signal frequency and signal strength. It enhances receiver security and identifies the source of jamming during the operational phase of a customer's system. This module also implements a detailed algorithm to verify the correctness of GNSS signals and can detect and eliminate spurious signals that are not broadcast from the satellites. The GT-100 also has the ability to operate only on L5 if L1 is jammed, or only on L1 if L5 is jammed.

The GT-100 has 62 channels for GNSS reception, an acquisition sensitivity of -147 dBm, and a tracking sensitivity of -165 dBm. It requires a DC supply of 3.3 V and consumes 55 mA of current. This module is available in a 47-pin LCC package that measures 18.00 x 17.80 x 3.11 mm. It is suitable for use in 5G RAN, radio systems, and time servers.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
    FURUNO Electric Co., Ltd.
  • Description
    High-Stability L1/L5 Band GNSS Timing Receiver Module

General Parameters

  • Type
  • Technology
    SBAS, QZSS, GPS, GLONASS, Galileo, BeiDou, NavIC
  • Band
    E1B, L1OF, L1 C/A, E5a, E1B/C, B2a, B1I, B1C, L5, E1C
  • Integrated Antenna
  • Channels
  • Tracking Sensitivity
    -165 dBm
  • Acquisition Sensitivity
    -147 dBm
  • Cold Start
    35 s
  • TTFF Hot Start
    2 s
  • Supply Voltage
    3.3 V
  • Current
    55 mA
  • Interface
  • Application
    5G, Satellite


  • Dimension
    18.0mm × 17.8mm × 3.11mm


  • Operating Temperature
    -40 to 85 Degree C