TETRA (Terrestrial Trunked Radio) is a Band Selective Repeater for extending the network coverage into buildings for public safety or emergency needs. DSP based architecture within TETRA repeater can handle up to 16 channels. It can amplify the whole 5 MHz TETRA band for UL and DL. The installation process for TETRA is easy and fast, so the repeater is on-air within minutes. TETRA is specifically designed for government agencies, emergency services (police forces, fire departments, and ambulance), public safety networks, rail transports and military services.