Method for making several easy-pull tank TV antennas, TV Antenna
Keywords: several easy-pull tank TV antennas
Method for making several easy-pull tank TV antennas
First, the first simple antenna production method: First, in the outer side of the easy-pull can open, take a hole, pass through a screw, and fix the two easy-pull tanks on an insulating slat (this slat can be used Plastic ruler replacement), then take - section 300Ω feeder (length as needed, generally two meters around), respectively, on the two screws on the insulator, and connect the matching device (75-300 Ω). The distance between the two purchases is 60 to 80 mm. Finally, find a beautiful wine bottle as a base, a hole in the wine bottle cover and the insulating strip is fixed. Debug method: 1 The position of the movable antenna 2 can rotate the antenna debug 3 can adjust the angle of the antenna.
Second, the second simple antenna production method: use 6 easy pull tanks, L roots 90 cm long thin copper tube (or No. 8 steel), 5 insulating slats. 1 putting 5 insulating slats, securing the cap screw, making a screw (42 cm long side of the pulley, 12 cm wide). 2 Tag 3 groups of easy pull can be fixed in parallel with a cap screw on the bracket. AB, CD, EF spacing (referred to as easy pull can) is 10 cm; AC, CE, BD, and DF spacing are 20% from G, H is the midpoint of CE and DF (ie 10 cm), and fine copper tube (Or copper wire) is bent into a ring (25 cm diameter), which is fixed to G, H tied with a borrowing fan, and the copper wire is perpendicular to the bracket. 3 Connect the two heads of the flat feed on the cap screw column of the CD group easy to pull, and fix it with a nut. The two short wires (normal power cord) are used, and the DH is connected well fixed, that is, the two screw columns of the middle set of easy pull can connect with the two heads of the copper ring. 4 Place a small wooden stick in the middle of the frame "O", fix it with the wood screw, and insert the small wood into - bamboo poles and hold. A satisfactory effect can be received on the roof or balcony, to the primary television launch tower to the primary television station to the main TV station. This full-channel easy tank TV antenna is especially suitable for remote mountainous areas.
Third, using the aluminum easy pull can be slightly assembled, which can be made into a well-received television antenna as shown. Mainly two diameters of 10 mm, 85 mm aluminum tube. The angle of the two main pipe is 90 °, and the A and B terminals are fixed to the insulating plate D by the screw, and the fixing is enhanced with the insulator tube L. The branch of 6 long 14 cm is welded on each main pipe, and the angle of branch and the main pipe is 45 °. Upload the TV with a 300 / 75Ω impedance converter with a 300 / 75Ω impedance conversion plug. The mounting of the tank is: one hole in the upper and lower cover of the tilates, and then set on the branch and secure it with a grace. When used, place the antenna in the direction of the television station on the top or obstachable, then watch the position (orientation) of the TV edge adjustment, and adjust to the optimal position to fix it. This antenna has a good reception effect on the 1-38 channel.
Fourth, the TV antenna made of 12 easy pull cans, the effect of receiving the TV signal is better than the other antenna of the homemade. Canned various beverages can easily get aluminum easy pull cans are the main materials for the antenna. Generally, a "T"-shaped wooden bracket is used to secure 6 of the easy pull can be fixed on the beam. Drill holes at both ends of the easy pull can, the holes are 1 ~ 2 mm, just wear the copper core line peeled off the outer skin. The wire is wanted to be a slightly thick wire. The puls jar of the wearing is tightened, the core is fixed on the iron nail, and it is made according to the drawings. In order to firmly, the tank can be tied to the beam with a wire, from the copper wire on the two iron nails to the television.
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