Product overview
The Bynav X8-M2 Series is a positioning box built around integrated high-precision positioning modules. Its role in a UAV installation is to provide positioning and, in the dual-antenna variants, heading information. The enclosure carries an IP65 rating, while L1, L2 and L5 reception, L-Band and CLAS support, and anti-jamming capability define its signal-processing features. Connections include 4G LTE, Bluetooth and USB. The free By Center Android app supports Bluetooth connection, RTK configuration and setup for mapping or testing.
Configuration depends on the selected model. X8-M20D and X8-M21D use two antennas and specify heading accuracy of 0.2°/1m; the other three variants use one antenna and have no heading-accuracy value specified. Maximum GNSS message rates are 10 Hz for X8-M20 and X8-M20D, and 5 Hz for the remaining variants. X8-M21, X8-M21D and X8-M22 additionally specify 100 Hz INS messages. Their optional dead-reckoning function requires wheelspeed input, making that input a concrete integration requirement when this capability is selected.
Across the series, horizontal RTK positioning accuracy is 1 cm + 1 ppm RMS and vertical RTK accuracy is 1.5 cm + 1 ppm RMS. Single-point accuracy is 1.5 m horizontally and 2.5 m vertically, both RMS. Typical first positioning times are 30 seconds from a cold start and 5 seconds from a hot start. Variant selection also affects dead-reckoning accuracy: X8-M21 and X8-M21D specify 0.8% at 2σ, while X8-M22 specifies 0.2% at 2σ, with the wheelspeed-input requirement applying.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity and architecture | Bynav X8-M2 Series GNSS/INS Positioning Box, with integrated Bynav high-precision positioning modules. |
| Supported frequency bands | L1, L2 and L5. |
| Additional signal support and interference capability | Anti-jamming capability; L-Band and CLAS support. |
| Connectivity | 4G LTE, Bluetooth and USB. |
| Enclosure protection | IP65. |
| Model variants | X8-M20, X8-M20D, X8-M21, X8-M21D and X8-M22. |
| Tracked satellite systems | GPS, BDS, GLO, GAL, QZSS and NavIC. |
| Horizontal positioning accuracy | 1.5 m.Single-point positioning; RMS. |
| Horizontal positioning accuracy | 1 cm + 1 ppm.RTK positioning; RMS. |
| Vertical positioning accuracy | 2.5 m.Single-point positioning; RMS. |
| Vertical positioning accuracy | 1.5 cm + 1 ppm.RTK positioning; RMS. |
| Heading accuracy |
|
| Dead-reckoning accuracy |
|
| Number of antennas |
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| GNSS message rate |
|
| INS message rate |
|
| First positioning time | 30 s (Typ.).Cold start; typical. |
| First positioning time | 5 s (Typ.).Hot start; typical. |
| Configuration software | By Center supports Bluetooth connection, RTK configuration and mapping/testing setup.By Center Android app for X8-M2; free with X8-M2. |
| Tracking management | Web management platform with instant location tracking at centimeter-level accuracy. |
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