2025 · Q22
As a countermeasure to drone swarm attack an effective way is to use electromagnetic (EM) drone jamming to disrupt the GPS and communication system of the drones. Which one among the following is the correct frequency range used for EM drone jamming?
General ScienceEmerging technology
- AFar-infrared frequency
- BMicrowave frequency
- CVisible frequency
- DInfrared frequency
Explanation
Drone jamming that disrupts GPS and communication links works in the microwave frequency range, since GPS signals sit in the L-band (around 1-2 GHz), which is part of the microwave spectrum. Far-infrared, visible and infrared frequencies are optical ranges and are not used for jamming radio navigation and communication systems.