160-80-40m End Fed Antenna G0CSK iss 1.1.pdf - arkansas ares ...
160-80-40m End Fed Antenna G0CSK iss 1.1.pdf - arkansas ares ...
160-80-40m End Fed Antenna G0CSK iss 1.1.pdf - arkansas ares ...
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END FED INVERTED “L” ANTENNAFOR <strong>160</strong> – <strong>80</strong> – 40 METRES1.91MHz PlotsNote: The Red & Blue colours are used simply to emphasisethe vertical & horizontal components of the antenna current.The “X” marks the position of the traps.3.55MHz PlotsLooking at the current distribution, it will be seen that the1.92MHz Frequency does not cause either of the two traps tobecome activated & the antenna behaves as a long wire.n7.05 MHz PlotsHere the 3.55MHz frequency causes the <strong>80</strong>m trap to operateand electrically shorten the antenna. The current in the lastsection of the antenna is significantly reduced<strong>G0CSK</strong> EA5AVLHere the 7.05 MHz frequency causes the <strong>40m</strong> trap to operateand further electrically shorten the antenna. The current inthe last two sections is thus significantly reducedG8ODE OCT 2008 <strong>iss</strong>1.1
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