What Is a UHF Antenna?

A full-channel antenna refers to an antenna system that can receive all 82 channels in the very high frequency (VHF), ultra high frequency (UHF) and frequency modulation (FM) bands.

China's TV broadcasting frequency band is divided into very high frequency bands (

A full-channel antenna has the following characteristics:

1. A full-channel antenna is generally used as

For TV users who use single-channel receiving antennas, it is inconvenient to change one antenna for another channel. While using

An antenna that can better receive multiple channel TV signals is called

A full-channel television antenna, including a UHF antenna, a VHF antenna, and a UHF antenna for a remote control: four vibrators of the director 1 are arranged on the bracket 11 at an equal distance of 100 mm from left to right, each of which is 170 mm in length and is vertically connected by the connecting skeleton 13 The bracket is fixed on the bracket 11 and the lengths of the vibrators on both sides of the bracket are equal. The last vibrator of the guide 1 is further 70 mm to the right. The X-shaped vibrator 14 of the butterfly skeleton is fixed at an angle of 30 ° ~ 45 °, 4 vibrators each 150mm in length, 110mm to the right, fixed to a reflector 3 on the bracket 11 by connecting the skeleton 13 vertically, the vibrator length is 320mm, the total length of the bracket 11 is 1000mm; VHF antenna: two dedicated antennas A remote steering gear 6 is fixed between the connecting point 5 and the guide 7. The guide 13 is fixed on the bracket 12 from left to right through the connecting skeleton 13. The vibrator is 580 mm long, and the bracket 12 is 240 mm to the right. X-shaped vibrator 8 with a skeleton of 30 ° 45 °. Each of the four vibrators is 760mm long, and the bracket 12 is 350mm to the right. By connecting 13 skeletons, the reflector 9 is 850mm long, and the bracket 12 is right. 230mm, by connecting the skeleton 13, the reflector 10 is fixed, the vibrator is 1000mm long, and the 12 with a total length of 850mm; each of the above-mentioned vibrators is a 8 12 hollow aluminum tube, and the brackets 11 and 12 are square aluminum tubes. The skeleton, the vibrator and the bracket are fixed with tapping screws; The left end of the antenna bracket 12 is horizontally docked, and the joint 5 is tightly fixed and fixed with an aluminum square tube. The flat feeder 15-ends the UHF antenna butterfly skeleton, and the other end connects the circuit board 19 of the mixer 4 and the flat-end feeder 16-end of the VHF antenna. The butterfly skeleton, the other end of which is connected to the circuit board 19 of the mixer 4, and the mixer 4 is fixed behind the reflector 3 on the bracket 11. ^[3]