Specifications include, but are not limited to: Substantially similar unit successfully in service for at least 6 months by a law enforcement agency. Each radio capable of transmitting on LTE-FDD/TDD bands in addition to UMTS, CDMA2000 and GSM/GPRS/EDGE technology. Simultaneous amplification of each radio must have peak power of 100 W. Unit capable of locating in LTE mode, and direction finding while remaining in LTE mode. Unit capable of completing all-carrier network scan in under 10 minutes. Base station and amplifier must be capable of being controlled over wifi or wired Ethernet. System must be powered from one DC-to-AC inverter to the amplifier, which supplies power to the base station. Direction-finding equipment must be able to be integrated with the base station or stand-alone. Handheld direction-finder must have amplitude and phase identification. Include all antennas, cables and connectors. Minimum of six radios. Each radio operable on frequencies from 600 MHz to 2,500 MHz Unit capacity to operate on frequencies from 400 MHz to 4 GHz with modification.