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MODULE 01

Architecture & Comms

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STATUS: LEARNING IN PROGRESS

UAV System Architecture

Understanding the hardware and signals that keep drones in the air is the first step toward securing them.

1. The Core Triad

FIG 1.0: SYSTEM OVERVIEW

GCS

Ground Control Station

RF LINK / TELEMETRY

UAV

Flight Controller (FC)

Flight Controller (FC)

The "brain" of the drone. It contains the IMU (Inertial Measurement Unit), gyroscopes, and processes pilot inputs to control motor speed.

Ground Control (GCS)

The interface used by the pilot. Can be a physical remote, a laptop (Mission Planner), or a tablet. This is the entry point for most commands.

2. Communication Protocols

MAVLink (Micro Air Vehicle Link)

The most common protocol for drone-to-GCS communication. It packs data into efficient binary messages.

RISK: Standard MAVLink is unencrypted plain text. Anyone with a radio on the same frequency can read telemetry.

RF Links (2.4GHz / 5.8GHz / 900MHz)

Physical radio layers. 900MHz is often used for long-range telemetry, while 2.4GHz is standard for control.

3. Threat Landscape

Passive Interception

An attacker quietly listens to the video feed or telemetry stream. This reveals the drone's location and the pilot's location ("Home Point").

Protocol Injection

Injecting fake commands into an unauthenticated link. This can force a drone to land (RTL) or change course.

Regulatory & Compliance

Security testing must always be performed within legal boundaries. Tampering with RF signals can violate FCC/Aviation Authority regulations. This course focuses on system hardening, not offensive jamming.

Earn Your Credential

Complete all 3 modules and the final assessment to receive the UAV Defense Specialist Certificate.