DBSPECTRA's DS7TMD17C, 799 – 816 MHz, 17 MHz passband compact tower top amplifier. Use with DSX7PDU receiver multicoupler / power distribution unit ordered separately. The built-in window filter provides 65 dB of system insolation at transmit frequencies. This TTA and the DSX7PDU multicoupler / PDU together provide 110 dB of transmitter and receiver isolation at 700 and 800 MHz bands. TTA includes dual redundant quadrature-coupled LNAs that provide a low noise figure of 2.0 dB or less. Redundant LNA and automatic amplifier bypass during an alarm event or loss of power. Compact and stable weatherproof housing, lightning protection on all ports.