All important functional units are fully integrated on the PCB, frequency range forward 40/85-1006 MHz, active return channel 5-65 MHz, return channel on/off/active/passive. Return channel gain 32 dB. Rotary switch in 1 dB steps for attenuation and line equalization (0-15 dB). Jumpers for attenuation and line equalization (forward + reverse), integrated test sockets.