K902T GNSS Module
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Introduction
Product Parameter
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Introduction
The K902T GNSS module, powered by QC7820 SoC, delivers 5ns timing accuracy and multi-constellation support (GPS, BDS, Galileo, etc.). Featuring advanced anti‑interference and PPP‑B2b/HAS, it is ideal for 5G base stations, server time synchronization, power systems, and traffic dispatch.


  • Support GPS, BDS-2, BDS-3, GLONASS, GALILEO, NAVIC, QZSS and SBAS
  • RF&BB Integrated High-Precision GNSS SoC Chip
  • Brand New Dual Core CPU Structure
  • 5ns Timing Accuracy
  • Support PPP-B2b, PPP-HAS Service
01
Next-Gen QC7820 SoC Technology
The K902T incorporates ComNav's QC7820 SoC, an advanced multi-frequency GNSS processor designed for reliable signal tracking across all operational navigation constellations. The chipset's innovative architecture ensures robust performance in diverse signal environments.
02
High Precision Timing Technology
The K902T GNSS module provides nanosecond-level timing precision for mission-critical infrastructure. With advanced multi-band technology, it achieves <5ns timing accuracy in open-sky conditions without relying on external services.
03
Multi Anti-Interference Technologies
The K902T module features an advanced internal adaptive anti-interference system incorporating wideband reception, narrowband suppression, and continuous-wave rejection technologies. Its intelligent algorithm effectively mitigates all types of RF interference, ensuring high-quality observation data even in the most challenging electromagnetic environments.
04
Easy Integration
With its space-saving SMT package and ultra-low power operation, the K902T maintains full pin compatibility with industry-standard GNSS modules, simplifying design-in and reducing development time.
Product Parameter
Performance
Physical
Communications
Performance
  • Signal Tracking
    GPS:  L1C/A, L2P, L2C, L5, L1C
    BDS-2: B1I, B2I, B3I
    BDS-3: B1I, B3I, B1C, B2a, B2b
    GLONASS: G1, G2, G3*
    Galileo: E1, E5b, E5a, E5 AltBoC*, E6c*
    QZSS: L1C/A, L2C, L5, L1C
    SBAS: L1C/A, L5
    NAVIC*: L5
  • Cold Start
    < 20 s (Adding Acceleration Capture Module)
  • Hot Start (with RTC)
    < 10s (Typical)
  • Signal Reacquisition
    < 1s
  • Initialization Reliability
    > 99.9 %
  • Velocity accuracy
    ≤ 0.02 m/s
  • Time Accuracy
    5ns
  • PPP Convergence Time
    < 15 min
  • Post Processing
    2.5 mm + 1 ppm Horizontal
    5 mm + 1 ppm Vertical
  • DGPS
    <0.4 m RMS
  • SBAS
    1 m 3D RMS
  • Standalone
    1.5 m Horizontal; 3 m Vertical
  • PPP
    0.1 m Horizontal; 0.2 m Vertical


Note: Items marked with *are only support by specific firmware.

Physical
  • Size (W x L x H)
    17 mm × 22 mm × 2.5 mm
  • Weight
    1.9 g
  • Hardware interface
    LGA 54 pin
  • Power consumption
    0.4 W 
  • Input voltage
    + 3.3 V ± 5% DC
  • Working temperature
    -40 °C to + 85 °C
  • Storage temperature
    -55 °C to + 125 °C
  • LNA Power(Exernal)
    +3.3V ~ +5V ± 5%VDC @ 0-100mA
  • LNA Gain
    20 ~ 35 dB (Suggested)
  • Impedance Match
    50 Ω
Communications
  • UART
    2
  • UART3 or CAN (optional)
    1
  • I2C
    1
  • PPS
    1
  • EVENT
    1
  • SPI
    1
  • ETH
    1
  • Correction data I/O
    RTCM 2.X, 3.X
  • Position data output
    - ASCII (NMEA-0183): GGA, GSA, GSV, RMC, HDT, VHD, ZDA, VTG, GST, GLL
    - Binary: ComNav Binary
    - Position Output Rate: 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 Hz*, 50 Hz*



Note: Items marked with *are only support by specific firmware.


Download
  • SinoGNSS K902T GNSS Module_EN.pdf(2.31MB)
    2026-05-22
    DOWNLOAD
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