Kuma Matrix 12v/24v 12 volt Omni-Directional Portable Digital HD TV Antenna with Permanent Base for RV, Caravan, Truck and Boat An Omni-directional Touring Aerial. Ideal for permanent roof mounting on your RV, Caravan, Motorhome, Boat, Truck or Horsebox. lectrical Specifications: Frequency Band: VHF, UHF Frequency: VHF:174~233MHz, UHF: 470~870MHz Gain: 202dBi Working Voltage: 10~24V Impedance: 75ohm Radiation Pattern: Omni-directional Coax Cable: 3C-2V, L=4 m Connector: PAL-Male Material: Copper, aluminium and plastic