Product overview
The DM712D provides satellite positioning and heading as an embedded module for UAV navigation and other precision equipment. Its receiver supports BDS, GPS, GLONASS and Galileo signals, with optional QZSS and SBAS reception. Dual-antenna heading calculation complements RTK, DGNSS and PPP positioning modes. For integration planning, the module combines 384 receiver channels with built-in multipath mitigation and interference detection and suppression. Its role is a navigation component within a larger vehicle system, rather than a flight platform or airframe kit.
The physical module measures 30mm × 40mm × 3.2mm (±0.2mm) and weighs 7.8g, allowing installation within compact electronics assemblies. Integration connections comprise three UART ports and one each of I2C, PPS, SPI and EVENT. The DC supply range is 3.0–3.6V, with average RMS power consumption of 1W; antenna feed voltage is 3.3–5.5V depending on input voltage. Operating limits include −40°C to +85°C and 95% non-condensing humidity. RTK initialization specifications apply to a 10km baseline, while the stated positioning, heading, timing and velocity accuracies use RMS qualifications.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | Changsha Jinwei Integrated Circuit Co., Ltd DM712D all-system positioning and heading module |
| Receiver channels | 384 |
| Positioning modes | RTK, DGNSS and PPP |
| BDS signals | B1I/B2I/B3I/B1C/B2a/B2b |
| GPS signals | L1CA/L1C/L2C/L5 |
| GLONASS signals | L1/L2 |
| Galileo signals | E1/E5a/E5b |
| QZSS and SBAS signals | QZSS L1/L2; SBAS L1Optional signal support. |
| Single-point positioning accuracy | Horizontal ≤1.5m; vertical ≤3.0mRMS. |
| DGNSS accuracy | Horizontal ≤0.3m+10ppm; vertical ≤0.6m+10ppmRMS. |
| RTK accuracy | Horizontal ≤8mm+1ppm; vertical ≤15mm+1ppmRMS. |
| Heading accuracy | ≤0.2°/mRMS. |
| Timing accuracy | ≤20nsRMS. |
| Velocity accuracy | ≤0.05m/sRMS. |
| Cold-start time | ≤45s |
| Reacquisition time | ≤1s |
| RTK initialization time | ≤5s10km baseline. |
| RTK initialization reliability | ≥99.910km baseline. |
| Supported protocols | RTCM2.X, RTCM3.X, NMEA-0183 |
| Dimensions | 30mm×40mm×3.2mm (±0.2mm) |
| Weight | 7.8g |
| Supply voltage | 3.0V–3.6V DCDC supply. |
| Average power consumption | 1WRMS. |
| Antenna power feed | 3.3–5.5V; 0–200mAAntenna feed voltage depends on input voltage. |
| Humidity | 95%Non-condensing. |
| Operating temperature | −40°C to +85°C |
| Storage temperature | −45°C to +125°C |
| Functional interfaces | 3 × UART, 1 × I2C, 1 × PPS, 1 × SPI, 1 × EVENT |
| Heading architecture | Dual-antenna heading calculation |
| Multipath and interference handling | Built-in multipath mitigation with interference detection and suppression algorithms |
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