G3C09: Scatter propagation: What type of propagation allows signals

Q: What type of propagation allows signals to be heard in the transmitting station’s skip zone?

The correct answer is B: Scatter. The correct answer is B: Scatter. The type of propagation that allows signals to be heard in the transmitting station's skip zone is scatter. Scatter propagation occurs when signals are scattered by ionospheric irregularities into the skip zone (the area between ground wave and first skywave return). For amateur radio operators, this explains how signals can be received in areas that normally wouldn't receive them. Understanding this helps explain scatter propagation.

Updated: Dec 9, 2025 | Source: 2023-2027 Question Pool | Topic: G3C

G3C09G3C

What type of propagation allows signals to be heard in the transmitting station’s skip zone?

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Deep Dive: G3C09

The correct answer is B: Scatter. The type of propagation that allows signals to be heard in the transmitting station's skip zone is scatter. Scatter propagation occurs when signals are scattered by ionospheric irregularities into the skip zone (the area between ground wave and first skywave return). For amateur radio operators, this explains how signals can be received in areas that normally wouldn't receive them. Understanding this helps explain scatter propagation.

Why Other Answers Are Wrong

Option A (Faraday rotation): Incorrect. Faraday rotation is the rotation of polarization in the ionosphere, not a propagation mode that fills the skip zone. It doesn't explain skip zone reception. Option C (Chordal hop): Incorrect. Chordal hop is a type of multi-hop propagation, not a mode that fills the skip zone. It's a different propagation mechanism. Option D (Short-path): Incorrect. Short-path is the direct route, not a mode that fills the skip zone. Short-path doesn't explain skip zone reception.

Exam Tip

Skip zone reception = scatter propagation. Think 'S'kip 'Z'one = 'S'catter 'Z'ones. Scatter propagation allows signals to be heard in the skip zone through ionospheric irregularities. Not Faraday rotation, chordal hop, or short-path - just scatter.

Memory Aid

Real-World Example

You transmit on 20 meters, and your signal is received 200 miles away - within your skip zone (too far for ground wave, too close for normal skywave). This is scatter propagation - your signal is scattered by ionospheric irregularities into the skip zone. Scatter is the only propagation mode that fills the skip zone.

Source & Coverage

Question Pool: 2023-2027 Question Pool

Subelement: G3C

Reference: 2023-2027 Question Pool · G3 - Radio Wave Propagation

Key Concepts

Scatter propagation Skip zone Ionospheric irregularities Propagation modes

Verified Content

Question from the official FCC General Class pool. Explanation reviewed by licensed amateur radio operators and mapped to the G3C topic.