What is a Licensed Spectrum?

Licensed spectrum refers to specific frequency bands that require government authorization for use, ensuring minimal interference and dedicated bandwidth for carriers and critical communications.

• Cellular Networks: Mobile carriers like AT&T, Verizon, and T-Mobile operate in licensed spectrum bands, typically ranging from 600 MHz to 5 GHz, with 5G expanding into mmWave (24 GHz – 100 GHz) for ultra-high speeds and low latency. Lower bands (e.g., 600 MHz, 700 MHz) offer better coverage and building penetration, while mid-band and high-band frequencies (e.g., 2.5 GHz, 3.5 GHz, and mmWave) provide faster speeds but cover shorter distances.
• ERRCS (Emergency Responder Radio Communication Systems): First responder networks use dedicated licensed frequencies in bands like VHF (150-174 MHz), UHF (450-512 MHz), and the 700/800 MHz public safety bands to ensure strong and interference-free communication inside buildings and in emergencies.

Licensed spectrum is tightly regulated to maintain reliability and efficiency, preventing overcrowding and ensuring secure transmissions for critical applications.