Which technique is used to mitigate signals by exploiting terrain features?

Which technique is used to mitigate signals by exploiting terrain features?

• A. Terrain masking
• B. Low power/Brevity codes
• C. Directional antenna
• D. Horizontal boundary (Two Divisions)

Answer: (A)

Terrain masking uses the natural landscape to hide or reduce emissions by blocking the line-of-sight path between a transmitter (or sensor) and potential observers. By placing radios, antennas, or operations behind hills, ridges, or in valleys, the direct path to enemy radars or detectors is obstructed or attenuated, making it harder for signals to be detected or geolocated. This creates a shielded “signal shadow” that improves survivability and concealment in tactical environments. For example, operating in a valley can prevent an opposing radar from getting a clear view of your transmissions, even while you remain able to communicate within your unit. The other techniques adjust how the signal is emitted or rely on different concepts, not the terrain-based concealment this method provides.

Terrain masking uses the natural landscape to hide or reduce emissions by blocking the line-of-sight path between a transmitter (or sensor) and potential observers. By placing radios, antennas, or operations behind hills, ridges, or in valleys, the direct path to enemy radars or detectors is obstructed or attenuated, making it harder for signals to be detected or geolocated. This creates a shielded “signal shadow” that improves survivability and concealment in tactical environments. For example, operating in a valley can prevent an opposing radar from getting a clear view of your transmissions, even while you remain able to communicate within your unit. The other techniques adjust how the signal is emitted or rely on different concepts, not the terrain-based concealment this method provides.