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This page allows you to calculate the length for a half wave antenna. It uses the standard formula, 468/f MHz (142.6464/f MHz for metric) to calculate the element lengths (This is the same as that of a dipole).
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. Choose from quarter-wave, half-wave, the powerful 5/8-wave, 3/4-wave, or full-wave, and calculate minimum lengths of required radials, and then shop for your needs on our other pages and select from our inventory of aluminum ...
14 sie 2024 · Efhw Antenna Formula. The following formula is used to calculate the length of an End-Fed Half-Wave (EFHW) antenna. L = 468 / f L = 468/f. Variables: L is the length of the antenna (feet) f is the frequency (MHz) To calculate the length of an EFHW antenna, divide 468 by the frequency in MHz.
HF Antenna Calculator. Set Freq = MHz. λ = λ/2 = λ/4 = feet. m. Height = feet. m. Half-wave Dipole + Inverted-V Resonant on odd harmonics. Flat Dipole, Length = Len/2 = feet. m.
3 paź 2024 · This calculator simplifies the process of designing an EFHW antenna, providing quick results for various amateur radio bands, and helping users build efficient antennas for their specific needs.
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).
