A Dayton police sergeant said officers were pinging the cell phone when they found the small four-door, white car at East Norman and Eastview avenues about 9:15 p.m.
To ping means to send a cell phone a signal and have it respond with the asked for information, according to communications technicians. The term is derived from SONAR and echolocation, when a technician would send a sound wave and wait for its return to locate another object.
The man robbed the woman on Vincent Street, several blocks south of where the car was found. She was not injured, the sergeant said.
A K-9 unit is being used as part of the neighborhood search for the suspect.
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