Product overview
The ComNav K726 GNSS OEM Board is a high-precision positioning and orientation board from ComNav Technology Ltd. Built around the company's self-developed SNB1008 ASIC baseband chip, it uses dual antenna inputs to process observations for multi-constellation RTK positioning and heading. Its civilian applications include UAVs, precision agriculture and intelligent transportation systems requiring accurate position and heading information. The K726 supports centimeter-level positioning and high-precision heading in both static and dynamic environments.
The K726 tracks GPS, BeiDou and GLONASS signals, with SBAS support also available. Its interfaces include serial communication, USB, a pulse-per-second output and event marker inputs, while supported data formats include NMEA-0183 and ComNav Binary. These connections provide positioning data and timing signals for integration into other equipment. CAN interfaces are unavailable; the CAN bus connections are reserved. Heading and roll or pitch accuracy depend on the distance between the two GNSS antennas.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | ComNav K726 GNSS OEM BoardPositioning and orientation board |
| UAV application | High-precision positioning and attitude measurementDesigned for UAVs and other industries requiring these capabilities |
| Baseband chip | Self-developed SNB1008 ASICK726 board architecture |
| CAN interfaces | UnavailableAs stated in the supplied product specification |
| Model | K726GNSS module |
| Positioning and heading | Multi-constellation RTKObservations from both antenna inputs are processed. |
| Documented applications | Precision agriculture, UAVs and intelligent transportation systemsApplications requiring high-accuracy positioning and heading. |
| Model and architecture | K726 GNSS OEM board; dual antenna, dual frequency |
| Supported GNSS signals |
|
| Start times |
|
| Initialization | RTK initialization time: less than 10 s; initialization reliability: greater than 99.9% |
| Signal reacquisition | Less than 1.5 s |
| Velocity accuracy | 0.03 m/s |
| Acceleration and overload | Acceleration: 4g; overload: 15g |
| Orientation accuracy | Azimuth: (0.2/R)°; roll or pitch: (0.4/R)° |
| Post-processing accuracy | Horizontal: 2.5 mm + 1 ppm; vertical: 5 mm + 1 ppmPost processing. |
| RTK accuracy | Horizontal: 8 mm + 1 ppm; vertical: 15 mm + 1 ppmSingle-baseline RTK. |
| DGPS accuracy | Less than 0.4 m RMSDGPS; RMS. |
| SBAS accuracy | 1 m 3D RMSSBAS; 3D RMS. |
| Standalone accuracy | 1.5 m 3D RMSStandalone; 3D RMS. |
| Dimensions | 71 mm × 48 mm × 9 mmLength × width × height. |
| I/O connector | 2 × 22-pin male connector |
| Antenna connectors | 2 × MMCX female, 50 Ω |
| Weight | 27.2 g |
| Humidity | 95%No condensation. |
| Temperature limits | Operating: -40 °C to +80 °C; storage: -55 °C to +95 °COperating and storage. |
| Input voltage | +3.3 V to +5.5 VDC |
| Power consumption | 1.96 W |
| Serial interfaces | 3 LV-TTL ports; 1 RS-232; baud rates up to 921,600 bps |
| USB and CAN interfaces | 1 USB port; 2 CAN Bus interfacesCAN Bus reserved. |
| PPS output | 1 pulse-per-second output |
| Event marker inputs | 2 |
| Status indicators | 4 working-status LEDs |
| Correction data I/O | RTCM 2.X, 3.X; CMR; CMR+CMR and CMR+ support GPS only. |
| Position output formats | ASCII: NMEA-0183 GSV, RMC, HDT, VHD, GGA, GSA, ZDA, VTG, GST; PTNL, PJK; PTNL, AVR; PTNL, GGK; ComNav Binary; BINEX: 0x00, 0x01-01, 0x01-02, 0x01-05, 0x7d-00, 0x7e-00, 0x7f-05 |
| Output rates | 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 HzPosition data output. |
| Processing features | QUANTUM technology; DP-Filter smoothing |
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