LHA series CATV Distribution Amplifiers with active return are broadband indoor GaAs-Fet / PushPull distribution amplifiers designed for RF distribution systems such as those in Cable Television Apartments, Hotels, Hospitals and other applications where a high quality low noise figure amplifier is necessary to amplify the signals in both the forward and return paths. Designed with flat operational gain of 35 dB in the forward bandwidth and 18 dB in the reverse bandwidth. They have an input variable equalizer and plug-in interstage equalization feature in the forward bandwidth for balancing , a forward 20 dB gain control and a 20 dB reverse gain control. Plug in, midstage equalizer modules are available in 2dB steps from 2-26dB. The amplifiers are self powered and available in 117 and 230 volt. Features : GaAs-Fet Push Pull for high output levels with low distortions Active reverse Gain and equalization controls RFI housing Surge protection on all ports Diecast aluminium housing for heat dissipation 117 and 230 Volt power