This Supersonic Flat Digital TV/HDTV Antenna has a frequency range of VHF 170-230MHz and UHF 470-860MHz with no extra power required. Consists of a linear polarization with a 75 Ohm impedance. With this Flat Antenna from Supersonic you'll receive digital and analog TV broadcasts over the air. Flat Digital Antenna VHF UHF. Flat Digital HDTV Antenna with VHF and UHF Frequency Range allows you to receive digital and analog broadcast TV over the air, Ultra thin and lightweight design, Universal suction-cup stand, No extra power required, Frequency Range: VHF 170-230MHz, UHF 470-860MHz, Gain: 5dBi(max), VSWR: 3.0:1(Avg.), Impedance: 75 Ohms, Polarization: Linear, Cable: 3C-2V (1.5M), Connector: F/IEC, Dimensions: 8.30" x 4.68".