The Critical communications category covers communication systems used in emergency services, public safety, industry, transportation, utilities and other mission-critical environments. Topics include professional two-way radio, PoC systems, TETRA, DMR, LTE/5G-based communication, dispatcher solutions, emergency networks, redundancy, coverage planning, encryption, group calls, lone worker functions, GPS tracking and real-time voice or data transmission. The articles focus on technologies where reliability, availability, security and fast response are more important than ordinary consumer communication features.
When a rescue team enters steep terrain, radio communication becomes more than a convenience. It becomes part of the rescue system itself. A mobile phone may work in a valley village, fail completely behind the next ridge, briefly return on a wind-exposed saddle, and then disappear again inside a gully….
The Ukrainian Himera radio system is one of the most interesting examples of how modern warfare can accelerate the development of communication technology. In a conventional defense industry environment, tactical radios are usually developed through long procurement cycles, expensive certification processes and slow-moving institutional requirements. The war in Ukraine created…
Among aviation radio frequencies, few are as well known as 121.5 MHz. It is widely recognized as the international civilian emergency frequency, but its practical role is often simplified or misunderstood. In reality, 121.5 MHz is not merely a place where a pilot in trouble speaks to air traffic control….
Thanks to the rapid advancement of digital telecommunications technologies, next-generation communication systems are playing an increasingly pivotal role in meeting the special demands of security, availability, and response time. Among these, Mission-Critical LTE (MC-LTE) stands out as a modern mobile communication platform designed specifically for public safety, emergency response, healthcare,…
Hytera has brought back two well-known analogue handhelds in updated “Enhanced” versions: the licence-free TC-446SE Enhanced for PMR446 (446 MHz) use, and the TC-508 Enhanced, a tougher 400–480 MHz business radio aimed at demanding day-to-day operations. The TC-446SE Enhanced focuses on simple, reliable team comms with modern usability: 0.5 W…
Hytera presented its new P60 Smart PoC Radio at GITEX GLOBAL 2025, targeting professionals who can’t afford dropped calls or unclear audio in the field. Built with a rugged design and smart connectivity features, the P60 is aimed at users in public safety, security, utilities, and transportation. Mission-critical connectivity that…