UAV IC

I. Core Components of the Remote Control Link (Ground → Aircraft, Transmission of Control Commands)

1. Airborne Remote Control Receiver (RX)

2. Ground-Based Remote Control Transmitter (TX RF Transmitter)

3. Dedicated Remote Control Antenna

4. Remote Control Power Amplifier Module (PA)

Used in the industry for retrofitting long-range drones to amplify RF transmission power and extend communication range;

Equipped with filters to prevent high-power signals from interfering with the onboard video transmission, GPS, and ESC.

II. Core Components of Video Transmission Links (Aircraft → Ground, Video Feed + Telemetry)

Divided into analog video transmission components (FPV racing drones) and digital HD video transmission components (aerial photography / commercial drones)

(1) Analog Video Transmission Components (5.8 GHz Analog FPV)

(2) Digital HD Video Transmission Components (DJI OcuSync, Lightbridge, Open-Source Digital Video Transmission)

(3) Complete 4G/5G Public Network Video Transmission Components (Long-Range Beyond-Line-of-Sight (BLoS) Industrial Drones)

(4) Satellite Video Transmission / Short Message Communication Modules (Special-Purpose Drones)

III. General-Purpose RF Components (Shared by Remote Control and Video Transmission)

1. Filters (SAW Filters)

2. Duplexers / Combiner

3. Power Dividers, Diversity Switches

4. Shielding Enclosures, Absorptive Materials

5. Coaxial Feedlines (RF Coaxial Cables)

IV. Components Specific to Data Telemetry (Standalone Data Transmitter)

Primarily used in large-scale crop protection and fixed-wing surveying drones, operating independently from the video transmission system

1. Airborne Data Transmitter (433/900 MHz)

Two-way serial communication; transmits only GPS coordinates, battery status, fault alerts, and flight path commands; does not transmit video;

V. Auxiliary Circuit Components

1. LDO Voltage Regulator IC

Provides a clean, regulated 3.3V/5V power supply to the RF module and receiver; voltage fluctuations can cause signal instability;

2. TVS (Transient Voltage Suppressor) Diodes

Protect the RF interface to prevent electrostatic discharge from damaging the RF chips;

3. Pin Header / Terminals, Shielded Cables

Use shielded cables for video signal lines and RF control lines to reduce interference;

4. Indicator LEDs, Push-Button Switches

For channel switching, power adjustment, and signal status indicators.

2. Ground Data Transmission Radio

Connects to a ground station computer to send flight paths and receive operational data;

3. Compatible Data Transmission Antennas: Coil antennas, Yagi directional antennas.