![]() However, the actual resulting frequency of resonance and feed-point impedance of a dipole will depend on. This formula to obtain the length of a half-wave dipole antenna will give a good ballpark value to start with. The results are conveniently displayed in inches, centimeters, feet and meters. The antenna calculator above uses this formula as a starting point to calculate wire lengths for the dipole. To fully understand the results obtained by this calculator, please take a few minutes to read the explanation below it.īe prepared to trim the ends of the inverted V dipole if the final frequency of resonance ends up being too low for your needs when the inverted V is installed in its permanent position. If you have no particular preference within a given ham radio band, then simply enter its center frequency i. Enter your desired frequency MHz of operation i. Here is a simple antenna calculator for two popular forms of ham radio HF wire antennas: the horizontal dipole and the inverted "V". ![]()
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