Related Clues:

• Speed demon's undoing
• "M*A*S*H" company clerk
• Couple of artists looking back and forth at director for direction of Con Air perhaps
• "M*A*S*H" guy who heard choppers before anyone else
• Aid in detecting speeders
• Pitching scout's tool
• Measuring device that locates distant objects
• Tool for meteorologists
• Speeder's undoing
• Echolocation apparatus
• Storm-finding system
• Storm-tracking device
• Astronomer's tool
• Tracking system
• Tracker's tool