In 1929, which city deployed the first one-way radio car?

In 1929, which city deployed the first one-way radio car?

• A. Detroit
• B. Chicago
• C. Boston
• D. Philadelphia

Answer: (A)

This question tests knowledge of an early milestone in police communications. In 1929, Detroit became the first city to equip a patrol car with a one-way radio, meaning officers in the field could receive dispatches directly from the station. This innovation cut response times, reduced reliance on manual calls and messengers, and improved coordination among units. It represented a major step forward from wired telephones to wireless coordination in the field and set the stage for two-way radios that soon followed, which allowed officers to both send and receive messages. While other cities advanced radio use later, Detroit is recognized for this inaugural deployment.

This question tests knowledge of an early milestone in police communications. In 1929, Detroit became the first city to equip a patrol car with a one-way radio, meaning officers in the field could receive dispatches directly from the station. This innovation cut response times, reduced reliance on manual calls and messengers, and improved coordination among units. It represented a major step forward from wired telephones to wireless coordination in the field and set the stage for two-way radios that soon followed, which allowed officers to both send and receive messages. While other cities advanced radio use later, Detroit is recognized for this inaugural deployment.