1. With the design of the folding oscillator, five units and V reflectors, it has a strong directional and wide frequency band 2. The printing plate impedance matching device can effectively receive and transmit digital TV signals 3. It is convenient for users to install and use the cylindrical support rod in different diameter 4. The number of compatible dvb-t/H, dvb-t 2, DMB- T/H, isdb-t, atsc-t, ADTB- T, etc TV format 5. Signal output interface: English F female head Technical parameters: Signal receiving parameters: Frequency range: 470-860(MHz) Output impedance: 75 Ω The standing wave ratio: less than or equal to 2.0 Ratio: greater than or equal to 10 dB Support bar diameter: Φ 30 mm - 45 mm Interface form: English F female head Polarization mode: horizontal Working temperature: - 40 ℃ - 70 ℃ Relative humidity: 5%-95% Air pressure: 86kPa-106kPa Product size: 420mm x 325 mm x 245 mm Colour:As Shown Material:Metal Package Contents: 1 * 100Miles Amplified Yagi Antenna kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.