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Qtalis

K902 GNSS Module

High Precision RTK/INS Integrated Positioning GNSS Module

K902 GNSS Module

Regular price $145.00 USD
Regular price Sale price $145.00 USD
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Volume Pricing & OEM Support

Bulk pricing, OEM customization, and system integration.

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  • 1-Year Warranty
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The K902 GNSS Module integrates Qtalis’s advanced QC7820 SoC, delivering industry-leading full-constellation GNSS precision and centimeter-level positioning. Built-in IMU ensures stable GNSS/INS fusion navigation even in signal loss. With advanced anti-interference design and CAN & Ethernet interfaces, K902 delivers reliable, high-precision performance for intelligent driving, UAV, robotics, surveying & mapping, and digital construction.

Key Features

  • 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
  • Support PPP-B2b, PPP-HAS Service
  • Support GNSS+INS Navigation
  • Support CAN & Network

Certifications
CE / FCC / ROHS Certificate

Helpful Documentation

View full details

Application

Designed for high-precision positioning in demanding environments.

  • 5 stars: 5 (71%)
  • 4 stars: 2 (29%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
P
Prakash Reddy
Impressive GNSS+INS Performance

The GNSS positioning is accurate, and the integrated INS is a big advantage for our application. It maintains stable navigation performance when GNSS signals are temporarily blocked.

A
Ankit Patel
Fast and Helpful Support

The module performs well, and the technical support team was very responsive during integration. Questions were answered quickly and clearly.

R
Rahul Sharma
Works as Expected

Installed the K902 for testing and it worked right out of the box. Stable positioning, fast fixes, and no issues so far. Happy with the purchase.

R
Ryan Lee
Good Choice

The support team is wonderful, just the documentation could be improved for beginners.

Thanks Ryan! We're improving user guides to make onboarding easier.

N
Neeraj Mishra
Good accuracy, reasonable price

The module delivers solid accuracy and the GNSS+INS helps during short signal loss. Pricing is quite competitive compared to other options we tested. Documentation could be improved a bit, but overall a good experience.

L
Lukas Schneider
Fast shipping

Arrived quicker than expected, packaging was good. Plugged in and worked.

A
Alex Rivera
High performance for high-speed dynamics

We integrated the K902 into our racing telemetry system. The 50Hz output is real and stable, which is hard to find at this price point. No lag in positioning data even at high speeds. Very impressed with the hardware quality.

Hi Alex! Thank you for the professional feedback. We're proud of the K902's 50Hz capability for high-speed applications.

Channels1688
Signal TrackingGPS: 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, L5/A
NAVIC*: L5
Cold Start< 20 s (Adding Acceleration Capture Module)
Hot Start (with RTC)< 10s (Typical)
Signal Reacquisition< 1s
RTK Initialization time< 5s (D < 10km)
Initialization Reliability> 99.9 %
Velocity accuracy≤ 0.02 m/s
Time Accuracy20ns
PPP Convergence Time< 15 min
Post Processing2.5 mm + 1 ppm Horizontal
5 mm + 1 ppm Vertical
Single Baseline RTK8 mm + 1 ppm Horizontal
15 mm + 1 ppm Vertical
DGPS<0.4 m RMS
SBAS1 m 3D RMS
Standalone1.5 m Horizontal; 3 m Vertical
PPP0.1 m Horizontal; 0.2 m Vertical
ADR Position Error<3% of distance travelled without GNSS
Size (W x L x H)17 mm × 22 mm × 2.5 mm
Weight1.9 g
Hardware interfaceLGA 54 pin
Power consumption0.4 W (Anti-interference off)
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 Gain20 ~ 35 dB (Suggested)
Impedance Match50 Ω
UART2
UART3 or CAN (optional)1
PPS1
EVENT1
I2C1
SPI1
ETH1 (Corresponding Pin is 24, 25, 28, 29)
Correction data I/ORTCM 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*
- IMU Data Rate: 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 Hz*, 50 Hz*, 100 Hz*
GyroscopeRange: ± 125°/s
Bias Repeatability: 0.5°/s
Bias Stability: 5°/h
Angular Random Walk: 0.12°/√h
AccelerometerRange: ± 2g/s
Bias Repeatability: 20 mg
Bias Stability: 50 μg
Velocity Random Walk: 0.07 m/s/√h
Note:
Items marked with *are only support by specific firmware.
¹ The laboratory test results may be affected by experimental environment and are provided for reference purposes.