When talking on the radio, hold the microphone _____ inches from your mouth.

Holding the microphone about 2 inches from your mouth is optimal for clear communication over a radio. This distance allows for the best sound quality, as it minimizes interference from background noise while still capturing your voice effectively. Being too close or too far can distort the audio, leading to misunderstandings or unclear transmissions, which is critical in emergency situations where clarity is paramount. The microphone needs to be positioned in a way that balances volume and clarity without causing distortion from proximity, making 2 inches the most effective choice.