RL-GNSS-001 · Navigation · KAMAL NAV GM1
System overview
Signal paths, onboard interfaces, RF front-end blocks, and antenna operation.
01Signal paths#
The module has two main signal paths. The GNSS receiver sends position, velocity, time, and fix data over UART. The magnetometer sends compass data over I2C. Both share the same 5 V supply and ground through the JST SH connector.
The USB-C connector exposes a configuration and logging interface for u-center workflows without rewiring the flight-controller harness. The onboard active patch antenna is suitable for compact builds, while the U.FL connector supports an external dual-band active antenna for better placement.
02Block-level architecture#
| Block | Device or function | Purpose |
|---|---|---|
| GNSS receiver | u-blox DAN-F10N | Dual-band L1/L5 multi-constellation position, velocity, and time output |
| Magnetometer | MEMSIC MMC5983MA | 3-axis compass heading over I2C |
| RF front-end | SAW-LNA-SAW + LTE B13 notch | Rejects out-of-band interference before the receiver |
| Flight-controller connector | 6-pin JST SH 1.0 mm | 5 V, GND, UART RX/TX, I2C SDA/SCL |
| Configuration interface | USB-C | u-center configuration, diagnostics, and logging |
| Antenna path | Onboard patch + U.FL | Integrated or external active antenna operation |
03Antenna options#
Use the onboard patch for compact airframes with clean sky view. Use the U.FL connector when the GNSS module must sit near noise sources or inside a constrained enclosure.