Related Clues:
- System for detecting things using radio waves
- Instrument to detect distant objects
- The sound of a banner, perhaps, that gets the signal
- Up and down on the screen
- Electric eye, e.g
- Radar gun, for one
- Type of gun for a trooper
- Automatic-door feature
- Doppler --
- Thermostat component
- Device for catching speeders
- Part of a security system
- M*A*S*H character
- Cockpit device
- "M*A*S*H" corporal