Digital TV Antenna HDTV Antenna DTMB TV Antenna The products are shipped according to the color or size of the main image on the product page. Product Features: Improve the strength and quality of the digital / analog signals. An indispensable tool for DVB-T disk U. Offer a clear vision extra from your PC / laptop. Installation of the magnetic base. Reception of TV standards: analog TV signals, digital TV signals CMMB / DVB-T / DMB-T, etc. The assembly with the magnetic base is more easy to place. Suitable for DVB-T digital terrestrial TV receiver. Easy to install, simply connect to the DVB-T stick. Suitable for indoor and outdoor use. Product specifications: Frequency range: range 470-860Mhz Bandwidth Bandwidth-MHz band: 390 Gain Gain: 30dbi voltage standing wave ratio VSWR: 1.5 nominal impedance nominal-? impedance: 75 Polarization: Vertical Vertical maximum power-W maximum power: 50 Noise factor NoiseFactor: ?1.5dbi current and voltage consumption: DC5V Current power: ?20mA coaxial cable concentric cable: RG174 Cable length-m cable length: 5 meters Connector Type Connector: IEC Supports TV standard: Asia: DVB-T How to use: Step 1: Connect one end (female) of the coaxial cable connector attached to the ANT / IN to the back of the television or DVB-T tuner. Step 2: In the TV setup menu, set the tuner mode to "antenna" or "air." For more detailed instructions, please refer to the manual for your TV. Step 3: In the TV setup menu, set the TV channel as "scanning". This can sometimes be classified as automatic programming, auto scan, channel search or scan chains. For detailed instructions, refer to the TV manual. Step 4: If the reception is sporadic, try moving the antenna to another location and rescan the TV until you find the best location. Step 5: Attach the antenna in the best position you find. Packing list: 1 x antenna with amplifier 1 IEC adapter Remarks: Due to the manual measurement, please allow minor deviations. Due to differences in lighting and displays, product color may be slightly different from the image.