The Johansson Smart Amplifier allows you to combine up to 4 TV antennas for Full HDTV reception. Channels broadcast on the same frequency can be amplified in and re-located to the LTE band (switchable). The Smart Amplifier scans all channels, amplifies the weak signals, while keeping the strong channels. The Smart Amplifier is programmable to relocate adjacent channels with all output channels having an equal and stable output power. Experience a fully automatic channel scan and process function upon double power start-up. Provides a fully automatic recognition of the applied channel plan. SAW filters for LTE (5G) protection on all inputs. Outdoor weatherproof mast-head housing. DC Power over coax. All ports ESD protected. Includes smart preamplifier, power supply, wall clamp, and instructions.