E Type Bi-Directional trunk amplifier, 1 port output, forward path amplifier module, 30/39dB gain, reverse path 0/18/20dB. E Type Bi-Directional trunk amplifier, 1 port output, forward path amplifier module, 30/39dB gain, reverse path 0/18/20dB. Variable ATT and EQ is available, local and remote power optional.... Features