Related Clues:
- System for detecting things in either direction?
- Palindrome tracker?
- Detection system with blips
- Control tower installation
- Speed gun technology
- Pitch-tracking device
- Up or down detector
- Only major character in MASH portrayed by the same actor in the film and TV versions
- Speed detection device
- Two-way device?
- Robert Watson-Watt led the practical development of this location system
- Weather bureau tool
- Aviation equipment boom involving commercial for oxygen
- Pitch tracker
- Air traffic control equipment