Related Clues:

• It locates aircraft coming or going
• Airspace monitoring device
• Airspace monitor
• Speed tracker
• Position detector using radio wave pulses
• Storm locator
• Friend of Hawkeye and B.J
• Perception, figuratively
• Awareness, metaphorically
• Weather team's need
• Stage school runs system to identify high-fliers
• Means to track bishop with grasp of computer language
• Get out of the rag trade - it's something the traffic police like to point out
• Instrument to detect and track distant objects
• Airplane tracking device