OK, you understood ‘cops’ that is not a word we usually use here in the UK. We Brits historically often refer, politely, to our ‘boys in blue’ as ‘bobbies’ or ‘the old bill’.
Anyway, given that, I’m about to presume that you’re wondering about the United states police and their longstanding enterprise with the Motorola Corporation. OK, here goes…
According to Motorola’s own internet site,
“Law enforcement communications and police communications are essential assets to the safety and security initiatives in any community. Advancing police communications allow law enforcement to be more mobile and more rapidly respond to issues. Motorola offers an extensive product line to enhance law enforcement communications with less paperwork and faster, highly reliable performance”.
Motorola built vehicle radios as early as the 1920’s and United states law enforcement and the fire brigade used some of those, but it really wasn’t until 1930 that the 1st police car two way radio was developed and developed by Motorola. According to the official web site,
“Sales of Motorola police radios began in November 1930. Among the first customers (all in the U.S. state of Illinois) were the Village of River Forest; Village of Bellwood Police Department; City of Evanston Police; Illinois State Highway Police; and Cook County Police in the Chicago area. As more police departments used radios, challenges emerged. Rough roads, engine noises, interference, high power consumption, and frequency instability led Paul Galvin to recognize that police departments needed a radio specifically engineered for patrol cars”.
In 1936, the Motorola Law enforcement Cruiser Two way radio was built. It was a hit and Motorola are a trusted brand name by United states Police since. In 1939, engineer Don Mitchell created the Cell T6920 AM Transmitter. It had been another accomplishment, becoming a rational choice for the law enforcement as,
“This complete Motorola two-way radio system was priced about one-fourth as much as the competition’s, and the transmitters could be installed in cars that already had receivers in the same frequency band. In 1940 the Police Department in Bowling Green, Kentucky, became the first customer for a complete Motorola AM two-way radio system. The radios were so well-designed that Galvin Manufacturing produced the same models for several years, until FM technology replaced them in the 1940s”.
Evidently, the United states police have a very extensive and fruitful connection with the Motorola Corporation. This clearly applies to walkie-talkies also. It makes good sense to use a trusted, easy to work with brand for successive generations of officers, who often have to respond swiftly and intuitively to various problems.
The first police force to use radios were actually Australian, but following the Second World War, mobile radios grew to becomte standard issue in nearly all 1st world countries.