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UT986

UT986

GNSS All-constellation Multi-frequency High-precision Timing Module
multi frequency

Brief Introduction

UT986 is Unicore's new-generation proprietary GNSS high-accuracy timing module working on all systems and multiple frequencies. The module integrates filters and linear amplifiers, providing optimized RF structure and having interference suppression capability. Combining  the adaptive anti-jamming technology and multi-path mitigation algorithm, it supports jamming detection and spoofing detection, ensuring that the module continuously provides excellent performance even in complex electromagnetic environments. UT986 delivers nanosecond-level PPS accuracy and allows multiple timing modes, including fixed-location timing, optimized-location timing, and positioning timing, enabling exceptional timing accuracy in complex signal environment.



Features

  • Based on Unicore's proprietary GNSS SoC NebulasIV that integrates RF, baseband and high-precision algorithm

  • New-generation GNSS all-constellation multi-frequency high-accuracy timing module

  • Nanosecond-level PPS accuracy, with time quality indicator output 

  • Excellent anti-jamming capability, tracking different signals by different RF channels

  • Supports jamming detection and spoofing detection 

  • Supports single-satellite timing

Technical Specifications

Performance Specifications


Channel1408 channels, based on NebulasIV
FrequencyGPS L1C/A, L2C, L5 
BDS B1I, B1C, B2a 
GLONASS G1
Galileo E1, E5a, E5b
QZSS LC/A, L2C, L5 
Positioning Accuracy (CEP)Horizontal: 1.5 m (dual system, open sky)
vertical: 2.5 m (dual system, open sky)
Velocity Accuracy (RMS)0.03 m/s (dual system horizontal, open sky)
Observation Accuracy (RMS)
GPSBDSGLONASSGalileo
Cold start-147 dBm-145 dBm-145 dBm-145 dBm
Tracking-161 dBm-160 dBm-155 dBm-155 dBm
Time to First Fix (TTFF)Cold start  < 30 s
Reacquision < 3 s
1PPS Accuracy< 5 ns(1σ)
Data Update Rate1 Hz, up to 10 Hz
Differential DataRTCM V3.X, RTCM V2.X, MSM
Data Format
NMEA 0183, Unicore,  BINEX



Physical Specifications

Packaging28 pin LCC
Dimension17.0 × 22.4 × 2.4 mm
Weight1.9 g


Power Supply

Voltage3.0 V ~ 3.6 V DC
Power consumption700 mW (Typical)


Environmental Specifications

Working temperature-40 °C ~ +85 °C
Storage temperature-40 °C ~ +95 °C


I/O Interface

2 x UART LVTTL, baud rate: 9600 bps to 921600 bps
1 x PPS (LVTTL )


RF Input

Input impedance50 Ω
Antenna gain5 dB ~ 35 dB


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