Antenna Here is a Dipole - ARRL - Home
Within limits, however, resonance isn't necessary for a dipole to be effective, as I'll explain a bit later. Resonant half-wave dipoles range in size from about 16 feet for the 10-meter band (28-29.7 MHz) to 260 feet for the 160-meter band (1.8-2 MHz). See Table 1. The lowest frequency at which a dipole is resonant is known as its fundamental
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