Self-repeating radios are based on digital spread spectrum communication technology. By using same-frequency forwarding for radio data and multi-hop relay for radio voice, they effectively resolve the conflict between power consumption and transmission distance.

Compared to traditional wireless communication, this solution enables ultra-long-distance transmission with low power consumption, making it highly suitable for application scenarios such as tunnels and basements.

 

 

AMBE Vocoder Technology                Individual Call/Group Call/All Call

Support for Unlimited Hops                 Voice Encryption

Time-out Timer (TOT)                       Emergency Alarm

VOX (Voice Operated Exchange)              Call Priority Setting

Squelch Level Adjustment                    Low Power Mode, Low Battery Indication

Self-repeating radios utilize advanced narrowband voice codec technology. They feature a built-in repeater function and support multi-hop relay. Even in fringe areas with poor signal coverage, users can still obtain clear voice and maintain efficient communication. This solution effectively addresses communication dead zones, extends communication distance, and expands coverage range. With a comprehensive supporting system, it enables quick and flexible emergency deployment, offering significant advantages in forests, tunnels, and basements.

 

 

Self-repeating radios support frequency bands: UHF (400~480MHz), VHF (136~174MHz), with a channel spacing of 250KHz and an operating voltage of DC 7.4V. Equipped with a specially designed 50Ω impedance loaded long antenna, they offer stronger signal penetration and can still deliver clear voice even when interfered with by same-frequency signals. Featuring a built-in high-purity, large-capacity lithium battery and multi-level intelligent power-saving functions, they provide nearly 40% additional operating time compared to traditional analog radios, ensuring longer endurance.