Homemade short-wave antenna amplifier ----- SW antenna

Keywords: short-wave receiving antenna, short wave antenna production Homemade powerful anti-interference short wave receiving antenna Many friends will be confused by interference when listening to radio. Especially the same frequency interference, here you introduce a remedy to reduce interference, you may wish to try it. I. One antenna of material short-wave radio (2cm shorter than the radio antenna, can also be replaced by other wires), one piece (area about 30x60cm) small hook four tin foil (also replaced by other conductive materials), size than radios A slightly larger small wood (4x4x2cm) wire two paragraphs (approximately 10 cm) small screws, two eraser ports. Procedure 1. Ping the two tin waves in the graph in the three-pin plate (tin paper) Can't intersitive). The four hooks were nailed to the tin paper of the spinning tone (used to fix the radio). 2. Drill a hole with the bottom diameter of the antenna on the wooden block. Insert antenna, the bottom is connected to the wire. The other end of the wire is secured to the tin paper of the spinning machine with a screw. Secure the wooden blocks on the three-pin plate as shown in the figure. 3. Fix a head of the wire with a screw on another tin paper, and the other is wound around the antenna of the radio (as shown). 4. Put the radio on the tin paper as soon as described in the figure, and cross the radio on the board with two rubber band cross. At this time, the antenna and the second antenna of the radio are at the same time in the vertical three-in-plane. All the radiites are all pulled out, and the height of the second antenna should be slightly lower than the radio. In this way, the system is complete. 5. Turn the radio to the frequency you are listening, then place it in a relatively empty place (such as the window). Rotate the angle of the trihep until you find the best listening effect. When rotating, you cannot touch tin foil, radio and antenna. 6. The above method is less than a good listening effect, but also adjust the angle of the radio antenna before rotating. So the best listening effect is obtained. If a frequency is not, it is necessary to adjust to another frequency, repeat the above steps to achieve the best listening effect of the optimum frequency. Note: If the interference signal from the broadcast signal comes from the same direction, this system is difficult to effectively

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