Related Clues:
- Navigational aid
- What some detectors detect
- Source of waves at sea
- It may give a reflection on a highway
- Ship salvager's aid
- Antisub device
- Fuzzbuster's finding
- Submarine detector
- It hunted for Red October
- Trooper's trapper
- ''M*A*S*H'' character
- Bat's navigation aid
- Traffic cop's tool
- Echo finder
- Weathercaster's tool