The BIDA 100A-30 amplifier is configured for two-way operation with a passive sub-channel return path for 5 to 36MHz bandpass. The return gain is about 20dB when it is in active mode. Lower operating gains can be achieved by adjusting the variable attenuator. This model can be attenuated over a range of 10dB in the forward path and 18dB in the return path. Gain and slope controls are located on the front panel for easy set-up and adjustment. Two -30dB back-matched test points are provided to allow testing without service interruption.