Related Clues:

• Some Dr.'s
• Some MD's
• Ship spotter
• Sub's tracking device
• Navigation aid: Abbr.
• Colorful navig. tool
• Ship-locating system
• Sub-conscious sensor?
• Tool for bats
• Positioning system
• SUV option
• Traveler's aid, for short
• Rte. suggester
• Modern dashboard attachment, for short
• Modern navigation aid, familiarly