What is UHF (Ultra High Frequency)?

UHF (Ultra High Frequency) refers to the radio frequency range from 300 MHz to 3 GHz, commonly used in public safety, two-way radios, and emergency responder communication systems (ERRCS). In DAS (Distributed Antenna Systems) and ERRCS, UHF bands—particularly 450-512 MHz and the 700/800 MHz public safety bands—are used to ensure strong, reliable indoor coverage for firefighters, police, and emergency personnel. UHF signals are highly effective at penetrating buildings, making them critical for in-building radio systems and mission-critical communications.