Furuno GF-8803 Multi-GNSS Disciplined Oscillator Module

Linkwave Part Number: 4620-01

GF-8803 outputs 1PPS synchronized with UTC as well as 10MHz coherent to 1PPS.

UTC time-synchronized signal performance to meet 5G requirements is obtained without any changes to existing single-band GNSS antennas.

It also incorporates Dynamic Satellite Selection™, which is a new satellite signal selection algorithm developed by NTT. Thanks to that GF-8803 permits GNSS antennas to be mounted more freely than ever before including wall mounting and window mounting installations.

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 (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.

Specifications:

Additional information

Dimensions 34 × 27 × 20 mm
Manufacturer

Furuno

Region

Global

Location Technology

SBAS, GPS, GLONASS, GNSS, QZSS

Sensitivity

GPS Tracking: > -162 dBm, GPS Acquisition: > -148 dBm, GLONASS Tracking: > -158 dBm, GLONASS Acquisition: > -144 dBm, Galileo Tracking: > -146 dBm, Galileo Acquisition: > -136 dBm, QZSS Tracking: > -147 dBm, QZSS Acquisition: > -131 dBm

Initial Stabilization Time

< 5 minutes

1PPS Output (Lock State)

1PPS Accuracy: < ± 40ns (vs UTC), 1PPS Stability: < 4.5ns(1 σ)

Power Voltage

3.7 VDC

Operating Temperature

-40ºC to +85ºC

  • Generates UTC-synchronized 1PPS (pulse per second) and continuously disciplined 10 MHz
  • Coherent behaviour between time pulse (jitter less 1PPS) and frequency (10 MHz)
  • Concurrent reception of GPS/GLONASS/Galileo/QZSS/SBAS
  • Extremely high stability of 4.5ns (1sigma) using a single band receiver
  • In conformity with G.8272 PRTC-A, PRTC-B
  • GNSS antennas can be mounted on walls and windows of tall buildings
  • Industry-leading holdover performance
  • Wide product range in terms of size and holdover performance
  • Suitable for various communication and broadcasting applications
  • Single satellite tracking capable operations (except Navigation Mode)
  • Time Synchronization
  • Synchronization with external pulse
  • Antenna Connection Status Check Function
  • Antenna Power Supply Function
  • Backup Power Supply
  • Wide operation temperature range
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