As I travel around the Medford area I see many different street lights. Some of the street lights have something that looks like control boxes with radio antennas on the top of them. What are these radio antennas and lights used for?

As I travel around the Medford area I see many different street lights. Some of the street lights have something that looks like control boxes with radio antennas on the top of them. What are these radio antennas and lights used for?

­— Matthew K., Medford

Those boxes help police do what they do best: Lock up bad guys.

What you're seeing, Matthew, is the Medford Police Department's communications system. The antennas bounce frequencies that run their radios and in-car computers.

"They place the antennas strategically throughout the city to allow for the best coverage with the fewest antennas," said Master Police Officer Don Lane.

Communication is a cop's best friend when it comes to dangerous situations.

"Without this system we would not be able to function," Lane said.

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