enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Police radio - Wikipedia

   en.wikipedia.org/wiki/Police_radio

   Portable radios introduced in the 1960s made radio communications widely accessible to all officers. Early portable radios were heavy and had short battery life, an issue that gradually disappeared as technology advanced. [2] Modern police radio systems are often augmented by mobile data terminals to effectively manage units and assignments.

3. Walkie-talkie - Wikipedia

   en.wikipedia.org/wiki/Walkie-talkie

   A walkie-talkie, more formally known as a handheld transceiver, HT, or handheld radio, is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald Hings, radio engineer Alfred J. Gross, Henryk Magnuski and engineering teams at Motorola. First used for infantry, similar ...

4. Project 25 - Wikipedia

   en.wikipedia.org/wiki/Project_25

   Several hand-held Project 25 radios used around the world. Project 25 (P25 or APCO-25) is a suite of standards for interoperable digital two-way radio products. P25 was developed by public safety professionals in North America and has gained acceptance for public safety, security, public service, and commercial applications worldwide. [1]

5. Martin Cooper (inventor) - Wikipedia

   en.wikipedia.org/wiki/Martin_Cooper_(inventor)

   He developed products including the first cellular-like portable handheld police radio system, produced for the Chicago police department in 1967. [15] [16] By the early 1970s, Cooper headed Motorola's communications systems division. [4]

6. Two-way radio - Wikipedia

   en.wikipedia.org/wiki/Two-way_radio

   Naval air traffic controller communicates with aircraft over a two-way radio headset A variety of portable handheld two-way radios for private use. A two-way radio is a radio transceiver (a radio that can both transmit and receive radio waves), which is used for bidirectional person-to-person voice communication with other users with similar radios, [1] in contrast to a broadcast receiver ...

7. AN/PRC-152 - Wikipedia

   en.wikipedia.org/wiki/AN/PRC-152

   The AN/PRC-152 Multiband Handheld Radio, is a portable, compact, tactical software-defined combat-net radio manufactured by Harris Corporation. [1] It is compliant without waivers to the Joint Tactical Radio System (JTRS) Software Communications Architecture (SCA). [2] [3] It has received NSA certification for the transmission of Top Secret data.