Introduction
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Introduction
As the advanced model of K825, it supports L1, L2, L5, mitigates ionospheric impacts. With GNSS+INS navigation, the dual-antenna GNSS module is suitable for UAV, robotics, marine systems, UGV, portable terminals, deformation monitoring, GIS, and machine control applications.


  • Dual-antenna Design for Robust Heading and Positioning
  • Full-constellation multi-frequency tracking
  • Support L-Band and PPP
  • Support GNSS+INS navigation
  • Surface-mounted design and small size for integration
  • High-performance floating-point arithmetic
  • Industry-leading low power consumption
  • Internal adaptive anti-interference algorithm
01
Robust positioning and heading
The K825 is designed with dual-antenna that delivers high-precision positioning and heading information for various unmanned systems.
02
Easy to integrate
The K825 is a 30mm×40mm×3.2mm module with surface-mounted design and is ideal for users to integrate. The power consumption is lower to 1.6W .
03
INS+GNSS navigation
With up to 20HZ IMU data update rate and inertial navigation fusion algorithm, K825 can provide continuous and high-quality positioning data in harsh environments such as tunnels, buildings and forests.
Performance
Physical
Communications
Performance
  • Signal Tracking
    GPS: L1C/A, L2P, L2C, L5
    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
    NavIC: L5
    L-Band
  • Cold Start
    < 20s
  • Hot Start
    < 10s
  • Signal reacquisition
    < 1s
  • RTK Initialization time
    < 5s
  • Initialization reliability
    > 99.9 %
  • Velocity accuracy
    4 g
  • Time Accuracy
    20 ns
  • Overload
    15g
  • Azimuth
    (0.15/R)°
  • Roll or Pitch
    (0.3/R)°
  • Post Processing
    2.5 mm + 1 ppm Horizontal
    5 mm + 1 ppm Vertical
  • Single Baseline RTK
    8 mm + 1 ppm Horizontal
    15 mm + 1 ppm Vertical
  • DGPS
    <0.4 m RMS
  • SBAS
    1 m 3D RMS
  • Standalone
    1.5m 3D RMS
Physical
  • Size (L × W × H)
    30 mm × 40 mm × 3.2 mm
  • Weight
    10 g
  • Hardware interface
    LGA 60 pin
  • Power consumption
    1.6 W (Anti-interference off)
  • Input voltage
    +3.3 V ± 5% DC
  • Storage temperature
    -55 °C to + 95 °C
  • Working temperature
    -40 °C to + 85 °C
  • LNA Power External
    +3.3V ~ +5V ± 5%VDC @ 0-100mA
  • LNA Gain
    20 ~ 40dB (suggested)
  • Impedance Matching
    Wiring 50 Ω impedance matching
Communications
  • LVTTL ports
    3
  • SPI
    1
  • Event Markers input
    2
  • Pulse Per Second (PPS) output
    1
  • Indicator pins show the working status
    3
  • Correction data I/O
    RTCM 2.X, 3.X, CMR(GPS only), CMR+(GPS only)
  • Position data output
    - ASCII: NMEA-0183 GGA, GSA, GSV, RMC, HDT, VHD, ZDA, VTG, GST, GLL;
    - ComNav Binary
    - Position data output rate: 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20Hz



Download
  • SinoGNSS K8 Series GNSS Module Comparison Table.pdf(3.77MB)
    2024-05-30
  • SinoGNSS K825 GNSS OEM Module.pdf(0.87MB)
    2024-05-30
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