In a moment the radio crackled and there was a voice.

The radio crackled and a voice said, 'Clear so far.

A few seconds later, the radio crackled back to life.

There was a silence, then the radio crackled to life.

As they took their places at the controls, the radio suddenly crackled.

There was a pause then the radio crackled one last time.

A few hours later, we heard shots far off in the distance, then the radio crackled to life.

The radio crackled just as he picked up the microphone.

The radio on the desk in front of Webster crackled.

He said something to the officer and then Carr's radio crackled to life.