ComNav K708 GNSS OEM board with green circuit board and silver shielding

K708 GNSS OEM Board (End of Life)

The ComNav K708 GNSS OEM Board combines full-constellation, multi-frequency tracking with triple-frequency RTK for high-precision positioning. Its compact board integrates 8 GB of memory, Webserver service and serial, USB and Ethernet connectivity. Advanced QUANTUM Technology supports RTK positioning, while multiple correction and position-output formats provide flexible data interfaces.

ComNavDrone GPS

GNSS signals: GPS: L1 C/A, L2C, L2P, L5; BeiDou: B1, B2, B3; BeiDou Global Signal: B1C, B2a; GLONASS: L1 C/A, L1P, L2 C/A, L2P; SBAS: WAAS, EGNOS, MSAS, GAGAN, SDCM; Galileo: E1, E5a, E5b; QZSS

Product overview

The ComNav K708 GNSS OEM Board provides full-constellation, multi-frequency reception for high-precision positioning applications. It tracks GPS, BeiDou, GLONASS, Galileo, QZSS and SBAS, with support for BeiDou global signals B1C and B2a. Triple-frequency RTK uses advanced QUANTUM Technology, while the board also supports post-processing, DGPS and standalone positioning. Single Baseline RTK accuracy is 8 mm + 1 ppm horizontally and 15 mm + 1 ppm vertically; post-processing accuracy is 2.5 mm + 1 ppm horizontally and 5 mm + 1 ppm vertically.

The 100mm × 60mm × 9mm board weighs 45g and incorporates 8 GB of onboard memory, two 22-pin male I/O connectors and a 50 Ω MMCX female antenna connector. Serial, USB and Ethernet interfaces accompany Webserver service, PPS outputs and an event marker input. Position data output rates extend to 20Hz. The K708 accepts +3.3 V ~ +5.5 VDC and consumes 1.7 W, with an operating temperature range of -40 °C to + 80 °C and humidity of 95% without condensation.

Flight control & navigation

Specifications

K708 GNSS OEM Board (End of Life) specifications
Specification	Value & conditions
Product	ComNav K708 GNSS OEM Board
GNSS signals	GPS: L1 C/A, L2C, L2P, L5; BeiDou: B1, B2, B3; BeiDou Global Signal: B1C, B2a; GLONASS: L1 C/A, L1P, L2 C/A, L2P; SBAS: WAAS, EGNOS, MSAS, GAGAN, SDCM; Galileo: E1, E5a, E5b; QZSS
RTK technology	Triple-frequency RTK with advanced QUANTUM Technology
Service and smoothing function	DP-Filter Smooth Function; Webserver Service
Start times	Cold start: less than 50s; warm start: less than 45s; hot start: less than 15s Cold, warm and hot starts, respectively.
RTK initialization time	Less than 10sRTK initialization.
Signal reacquisition	Less than 1.5s
Initialization reliability	Greater than 99.9%
Velocity accuracy	0.03 m/s
Acceleration and overload	Acceleration: 4g; overload: 15g
Time accuracy	20ns
Post-processing accuracy	Horizontal: 2.5 mm + 1 ppm; vertical: 5 mm + 1 ppmPost processing; horizontal and vertical components.
Single Baseline RTK accuracy	Horizontal: 8 mm + 1 ppm; vertical: 15 mm + 1 ppmSingle Baseline RTK; horizontal and vertical components.
DGPS accuracy	Less than 0.4m RMSDGPS; RMS.
SBAS and standalone accuracy	SBAS: 1m 3D RMS; standalone: 1.5m 3D RMSSBAS and standalone positioning, respectively; 3D RMS.
Dimensions and weight	100mm × 60mm × 9mm; 45gDimensions in length × width × height.
Board connectors	I/O: 2 × 22 pin male connector; antenna: 1 × MMCX female, 50 Ω
Memory	8 GBOnboard memory.
Humidity	95%No condensation.
Temperature ranges	Operating: -40 °C to + 80 °C; storage: -55 °C to + 95 °COperating and storage temperatures, respectively.
Power	Input voltage: +3.3 V ~ +5.5 VDC; power consumption: 1.7 W
Serial communications	3 LV-TTL ports; 1 RS-232; baud rates up to 921,600 bps
USB and Ethernet	1 USB port; 1 LAN Ethernet port with HTTP, TCP and Ntrip protocol
CAN Bus	2Reserved CAN Bus.
Timing and event interfaces	2 Pulse Per Second (PPS) outputs; 1 Event Markers input
Status indicators and oscillator input	3 LED indicators show working status; external oscillator input
Correction data I/O	RTCM 2.X, 3.X; CMR (GPS only); CMR+ (GPS only)CMR and CMR+ support GPS only.
ASCII output formats	NMEA-0183 GSV, RMC, HDT, VHD, GGA, GSA, ZDA, VTG, GST; PTNL, PJK; PTNL, AVR; PTNL, GGKASCII position data output.
Binary output	ComNav Binary update to 20Hz; BINEX: 0x00, 0x01-01, 0x01-02, 0x01-05, 0x7d-00, 0x7e-00, 0x7f-05ComNav Binary and BINEX data output.
Output rates	1 Hz, 2 Hz, 5 Hz, 10 Hz, 20HzPosition data output.