Antops New generation digital technology dual Omni-directional complete coverage reception pattern: 360 horizontal, 360 vertical. Smart pass amplifier, exclusive Antop technology, uses an all-in-one design allowing easier connection while delivering the correct balance between short and long range reception. 4G LTE filter built into all Antop amplified TV antennas, blocks 3G and 4G wireless signals for noise-free digital reception. High gain reception technology, shielded for minimum interference. Durable exterior, waterproof design with UV coating. Supports VHF/ UHF digital signals. 7)Mounting accessory options. Technical specification frequency range: 87-230mhz, 470-790mhz receiving range: VHF/UHF gain: 20dB or 30dB power supply: DC 12-Volt via power adapter by following the simple tips below, you can enjoy free TV with you Antop antenna: - scan channel monthly to find all available channels including newly added or changed. - do not put or hide the antenna in/behind any metallic objects. - install the antenna as high as possible and near the window for better reception. - keep the antenna away from any high power consumption devices to avoid interference, such as air-condition, power station, elevator etc.