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This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen.
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Use this online calculator to determine the length of a quarter-wave antenna from the frequency. Both metric and English units of measurement are supported.
5 cze 2021 · The Antenna Calculator for Half-Wave Dipoles. Enter your desired frequency (MHz) of operation (i.e. 3.55). If you have no particular preference within a given ham radio band, then simply enter its center frequency (i.e. 7.15 for the 40 meter band).
This calculator is designed to give the vertical length (height) of a quarter wave ground plane antenna, and the length of each of the four radials (often called radiators) for the frequency chosen. The normal quarter wave ground plane antenna consists of a vertical radiator which is insulated and centered between 4 horizontal surrounding ...
31 paź 2023 · Amateur Vertical Antenna Calculator. Frequency (MHz): Antenna Height (feet): Calculate. FAQs. How high should a vertical antenna be? Vertical antennas are typically effective when elevated at least 1/4 to 1/2 wavelength above the ground. For HF bands (e.g., 20 meters), this could be approximately 5 to 10 meters (16 to 33 feet).
This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen. This does NOT take into consideration the type or size of horizontal reflectors, of even if there is a need for them.
Use our simple calculator to determine approximate dimensions of materials needed to build a vertical antenna.