Product overview
ComNav's K825 GNSS module supports a GNSS+INS navigation option and uses a dual-antenna configuration.
ComNav lists transportation, UAVs, machine control and precision agriculture as suitable applications.
Specifications
| Specification | Value & conditions |
|---|---|
| Navigation configuration | Dual-antenna GNSS module supporting a GNSS+INS navigation optionK825; GNSS+INS as an alternative. |
| Model | ComNav K825 GNSS Module |
| GNSS signal tracking | GPS: L1C/A, L2P, L2C, L5; BDS-2: B1I, B2I, B3I; BDS-3: B1I, B3I, B1C, B2a, B2b; GLONASS: G1, G2, G3; Galileo: E1, E5b, E5a, E5 AltBoC, E6c; QZSS: L1C/A, L2C, L5, L1C; SBAS: L1C/A; NavIC: L5; L-Band |
| Navigation and antenna configuration | Dual-antenna positioning and heading; full-constellation, multi-frequency tracking; L-Band and PPP support; GNSS+INS navigation |
| Processing and interference mitigation | High-performance floating-point arithmetic; internal adaptive anti-interference algorithm |
| IMU data update rate | Up to 20 Hz; inertial navigation fusion algorithm |
| Startup and signal reacquisition times |
|
| RTK initialization | Initialization time: less than 5 s; initialization reliability: greater than 99.9% |
| Velocity accuracy | ≤0.02 m/s |
| Acceleration and overload | Acceleration: 4 g; overload: 15 g |
| Time accuracy | 20 ns |
| Attitude specifications | Azimuth: (0.15/R)°; roll or pitch: (0.3/R)° |
| Position accuracy | Horizontal: 2.5 mm + 1 ppm; vertical: 5 mm + 1 ppmPost processing. |
| Position accuracy | Horizontal: 8 mm + 1 ppm; vertical: 15 mm + 1 ppmSingle-baseline RTK. |
| Position accuracy | Less than 0.4 mDGPS; RMS. |
| Position accuracy | 1 mSBAS; 3D RMS. |
| Position accuracy | 1.5 mStandalone; 3D RMS. |
| Dimensions and mounting | 30 mm × 40 mm × 3.2 mm; surface-mounted designL × W × H. |
| Weight | 10 g |
| Hardware interface | 60-pin LGA |
| Power consumption | 1.6 WAnti-interference off. |
| Input voltage | +3.3 V ±5% DC |
| Temperature ranges | Storage: -55 °C to +95 °C; working: -40 °C to +85 °C |
| LNA power | +3.3 V to +5 V ±5% VDCExternal supply; 0–100 mA. |
| LNA gain | 20–40 dBSuggested. |
| Wiring impedance matching | 50 Ω |
| Communication ports | 3 LVTTL ports; 1 SPI |
| Timing and status interfaces | 2 event marker inputs; 1 pulse-per-second (PPS) output; 3 working-status indicator pins |
| Correction data I/O | RTCM 2.X, 3.X; CMR; CMR+CMR and CMR+: GPS only. |
| Position data output formats | ASCII NMEA-0183: GGA, GSA, GSV, RMC, HDT, VHD, ZDA, VTG, GST, GLL; ComNav Binary |
| Position data output rates | 1 Hz, 2 Hz, 5 Hz, 10 Hz, 20 Hz |
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