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Building and Using Dipole Antennas
Simple Vertical Antennas
6 other sections not shown
1/4 wavelength 50 ohms 80 meters adjust amateurs antenna element antenna feed point antenna of Fig antenna performance antenna resonance antenna system ARRL balanced feed line balun transformer band bandwidth beam antenna capacitance capacitor circuit coaxial cable coaxial feed line coaxial line coil form collinear collinear array conductor core delta loop diameter dip meter driven element electrical enameled wire erect example feed impedance feet FS meter gain ground rod ground screen ground system half wavelength half-wave high above ground inches inductance inductor insulators ladder line length loading coil long wire losses mast matcher maximum multiband obtain an SWR ohms open-wire operating frequency preamplifier radiation angle radiation pattern ratio reactance RF energy RF power RF voltage stub SWR bridge SWR meter tower Transmatch transmission line transmitter trap vertical tribander tubing tuned feeders velocity factor vertical antenna watts wave wavelength wire antenna Yagi Zepp