The main feature of this unit is the signal strength meter built into the masthead unit itself. This enables you to rotate your T.V. antenna while you are up the mast to get the best signal strength before you clamp the assembly permanently in place. No more climbing up and down the ladder to check T.V. reception! The masthead unit measures 100(W) x 90Z(H) by only 30(D)mm. It has 2 x downward facing female ‘F’ type output sockets, with a drip shroud. Two rubber boots are provided to waterproof cable entry to the unit. The masthead amp comes with a mains power supply which plugs into a power inserter. The power inserter sends power up the mast to the amplifier and then provides a D.C. power free signal to your T.V. set. All connections are by ‘F’ type connectors. Apart from that, the kit includes mast “U” clamp, 9V battery power supply to show signal when installing and sundry other hardware. Features: • 4G LTE interface filter • Coax line power • Includes all mounting hardware, A.C. adaptor, injector box Specifications Impedence rating : 75.00000000? IP Rating : Dust/Particle Ingress Protection : IPX - Not rated Liquid/Moisture Ingress Protection : 7 - Immersion up to 1m Width : 100.00000000mm Height : 90.00000000mm Depth : 30.00000000mm Weight : 100.00000000g Size / Shape : 9V Type : Alkaline Batteries included : false DC Plugpack Voltage : 12.00000000V, 0.00000000V DC Current Draw : 250.00000000mA, 0.00000000A Item Connection : Barrel Plug Connection Size (Inner Diameter) : 2.10000000mm Suitable PSU Included : true Dimension details : Diameter : 35.00000000mm Amplifier Type : Masthead Number of Inputs : 1.00000000pc Input Connection : F Type Number of Outputs : 1.00000000pc Output Connection : F Type UHF Gain : 14.00000000dB, 14.00000000dB VHF Gain : 16.00000000dB, 16.00000000dB UHF Frequency Range : 470.00000000MHz, 694.00000000MHz VHF Frequency Range : 54.00000000MHz, 230.00000000MHz UHF Noise Figure : 7.00000000dB VHF Noise Figure : 7.00000000dB