Radio Waves Characteristics and Modulation Knowledge Requirements

In plain language

You need to understand how radio waves travel, which frequencies are legal in Canada, what causes signal attenuation or reflection, and how to maximize signal strength.

Requirement as structured

TCCA guidance specifies that RPA pilots operating within level 1 complex operations must be able to explain radio wave propagation, Canadian frequency bands, attenuation, multipath propagation, Fresnel zones, and signal maximization.

Original regulatory text

The RPA pilot operating within level 1 complex operations must be able to: - Explain the principles of a radio wave inverse-squared relation with respect to power and distance. - Explain the radio frequency spectrum and how it is divided up. - Explain what frequency bands are allowed for RPAS use in Canada, and when approval for frequency use is required. - Explain the characteristics of radio waves and radio wave propagation. - Describe the meaning of attenuation and how signals can be affected. - Explain environmental conditions that can affect C2 link integrity. - Explain how multipath propagation and signal reflection can affect C2 links. - Explain the expected effect of spatial diversity on C2. - Describe the Fresnel zone area surrounding a C2 link and its vulnerability. - Explain the basic measures to follow to maximize signal strength during long range missions. - Identify the principal frequencies and types of modulation used for RPAS C2 links. - Describe benefits and drawbacks of different types of C2 links.

Applies when

country

Canada

operation type

level_1_complex_operations

regulatory category

Specific