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ANTENTOP- 01- 2013 # 017

Antennas UA6AGW

 

 

The antenna fed by a coupling loop. For simplicity of the design the coupling loop made from the feeding coaxial cable. Figure 3 shows the coupling loop before it is circulated to loop. Length of the coaxial cable to be used for the coupling loop is 200- mm. Plastic from the length of the coaxial cable is removed on to 10– mm in the center and from two ends. Then braid of the coaxial cable is removed at the center. Inner conductor is soldered to the braid at the far (right) end of the length.

Then the cable is turned to loop. Far end of the length is soldered to the first (left) side of the prepared cable. (In Russia the method of the making the coupling loop sometimes is named “method of the DF9IV”) The coupling loop is fastened to the upper part of the antenna’s loop with help of a Scotch. Figure 4 shows the picture of the antenna. Capacitors are in the plastic box. Horizontal wires have diameter 2... 3- mm. Copper strand wire or antenna cord may be used for those ones.

 

 

Figure 3 Preparation of the Coupling Loop for the Antenna UA6AGW for the 40-m Band

(Dimensions in mm)

 

 

 

Figure 4 Picture of the Antenna UA6AGW for the 40-m Band

 

 

 

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May 1, 2016 23:06

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