The AI-133 amplifier is used as subscriber amplifier to distribute the signal of CATV or MATV systems for multiple receivers.

Due to the lack of gaps in the operating band, amplifier can be used in every CATV network. It can be also used to distribute the signals of MATV systems. Amplification adjustment is related to the cable loss characteristics correction.

Amplifier is equipped with passive return channel KZ 0 - 65 MHz, what allows to connecting the cable modem to it. It is possible to use it in installations with wired remote controller extensions e.g. Power Link.