Setup guide:Step1: Connect of attached coaxial cable to the ANT/IN connector on the back of the TV of Digital Converter Box, then plug the USV plug into the USB port of the TV of Digital Converber Box. : Hand the antenna, near the window, place it horizontally from vertically.Step 3: In the TV' 5s of STB's setup , set the tuner mode to "Antenna" from "Air" For more detailed instructions, refer to your TV manual. Step 4: In STB's TV's setup , set TV to "" for any channels. This can sometimes be referred to as auto-, auto-, channel search or channel . the TV manual for detailed instructions. Step 5: If reception is sporadic, try moving the antenna to another location and rescanning the TV until optimal position is found. Step 6: Fix the antenna at the optimal position you found.Adjustment of antenna directions.Connect the antenna to TV properly.Set TV Antenna mode.When the signal quality is low, adjust the location of the antenna's rotating direction station.You only watch the until the signal quality gets improved. Specification: 1. Working Frequency: VHF (170-240Mhz) / UHF (470-860Mhz) 2. VSWR: 5 3. impedance: 75 4.LNA Gain: 25dB 5. Reception range: 360 6.Size: 210x115x0.6mm 7. Color: Black 8.Material: ABS 9.Cable: 1.5C-2V/Lenth=3.6m 10. Connectors: Universal 11. Polarization: Linear 12.Voltage: 5V 13. Power Supply Connector: USB 14. Operation Temperature: -45 ~ 85 15. Storage Temperature: -45 ~ 85 16. Compatible with 720p, 1080i, 1080p/ATSC Package Contents: 1 x TV Antenne 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.