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US & Canada, Sept. 18, 2024 (GLOBE NEWSWIRE) -- A land mobile radio (LMR) system is a person-to-person voice communication system consisting of two-way radio transceivers with an audio transmitter and ...

German manufacturers Plisch and RFmondial have produced a VHF Band III DRM transmitter, which the companies said is the first of its kind.

All products featured on WIRED are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Learn more. Tired ...

For the first time in history, a prototype radio has been created that is claimed to be completely digital, generating high-frequency radio waves purely through the use of integrated circuits and a ...

Way back in the 1980s, when I was a young naval officer, the Global Positioning System was still in its experimental stage. If you were in the middle of the ocean on a cloudy night, there was pretty ...