K827 GNSS Board

K827 is comnav’s best-in-class K8 series board. It is a multi-frequency GNSS receiver featuring reliable positioning performance with two independent RTK engine on one board. It can offer centimeter positioning accuracy in harsh environment. It's designed specifically for applications in land surveying, autonomous driving, precision agriculture, machine control, robotics, and UAV.

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Features

Full-constellation multi-frequency

support GPS, BDS-2, BDS-3, GLONASS, Galileo, IRNSS, QZSS and SBAS

Maximum availability in complex situation

Support INS+GNSS navigation

Support L-Band

Support CAN protocol

50Hz data output

1.8W power consumption

Dual-engine RTK Technology

Observations from primary antenna and secondary antenna are transferred to two processors where RTK are computed independently, so the robustness of system is improved.

Full-constellation & Multi-frequency

K827 can track all the current and planned GNSS constellations, including GPS, BDS-2, BDS-3, GLONASS, Galileo, IRNSS, QZSS and SBAS.

On Board IMU

K827 combines GNSS and IMU to deliver precise positioning in challenging environment. It can keep centimeter-level positioning in 3s and meter-level in 10s during lock-lose.

Strong Compatibility

K827 is compatible with mainstream GNSS boards from physical to data format, ensuring a seamlessly replacement for customers who use boards on worldwide standard 20pins to 28pins.

Specifications

Performance	Channels	1930
	Satellites tracking	GPS: L1C/A, L1C, L2P, L2C, L5 BeiDou: B1I, B2I, B3I,B1C, B2a, B2b GLONASS: G1, G2, G3* Galileo: E1, E5b, E5a, E5 AltBoC*, E6c QZSS, IRNSS, L-Band SBAS: WAAS, EGNOS, MSAS, GAGAN, SDCM
	Post Processing	Horizontal: 2.5 mm + 1 ppm Vertical: 5 mm + 1 ppm
	Single Baseline RTK	Horizontal: 8 mm+1 ppm Vertical: 15 mm+ 1 ppm
	Initialization time	<5 s
Physical	Size (L x W x H)	46mm×71mm×10mm
	Weight	15.0 g
	Hardware interface	2x14 pin
	Power consumption	1.8 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 ~ 35dB
	Impedance Match	50 Ω
Communications	LVTTL ports	3
	SPI	2
	Event Markers input	2
	Pulse Per Second (PPS) output	1
	Indicator pins show tde working status	3
	Correction data I/O	RTCM 2.X, 3.X, CMR, CMR+
	Position data output	NMEA-0183, ComNav Binary, BINEX