K823 GNSS Module-OEM Board-Innovation Makes A Difference

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Introduction

Product Parameter

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Introduction

The K823 is a dual-antenna dual-frequency and full-constellation GNSS OEM board with IMU module, which delivers robust high-precision positioning & heading information.It's designed specifically for UAV, robotic system, marine system, UGV, portable terminal, deformation monitoring, GIS, and machine control.

Dual-antenna Design for Robust Heading and Positioning
GPS, BeiDou, GLONASS, Galileo, QZSS, SBAS
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

Robust positioning and heading

The K823 is designed with dual-antenna that delivers high-precision positioning and heading information for various unmanned systems.

Easy to integrate

The K823 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.

INS+GNSS navigation

The K823 is designed with an onboard high-precision IMU module, which can provide continuous and high-quality positioning data with inertial navigation fusion algorithm.

Product Parameter

Performance

Physical

Communications

Performance

Satellites tracking	GPS: L1 C/A, L2C, L2P BeiDou: B1, B2 BeiDou Global Signal: B1C, B2b GLONASS: L1 C/A, L1P, L2 C/A, L2P Galileo: E1, E5b QZSS: L1, L2 SBAS: WAAS, EGNOS, MSAS, GAGAN, SDCM L-Band
Cold start	<20 s
Hot start	<10 s
RTK Initialization time	<10 s
Signal reacquisition	<1 s
Initialization reliability	>99.9%
Velocity accuracy	4 g
Overload	15 g
Time accuracy	20 ns
Azimuth	(0.2/R)°
Roll or Pitch	(0.4/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 x W x 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
Operating temperature	-40 °C to + 85 °C
Storage temperature	-55 °C to + 95 °C
LNA Power External	+3.3V ~ +5V ± 5%VDC @ 0-100mA
LNA Gain	20 ~ 40dB (suggested)
Impedance Match	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; PTNL, PJK; PTNL, AVR; PTNL, GGK - ComNav Binary - BINEX Data: 0x00, 0x01-01, 0x01-02, 0x01-05, 0x7d-00, 0x7e-00, 0x7f-05 - Position data output rate: 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20Hz