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📏 Wavelength Calculator
Calculate wavelength and antenna element lengths from frequency.
Frequency
Unit
Hz
kHz
MHz
GHz
Velocity factor:
(1.00 = free space; coax ~0.66–0.85)
Full Wave (λ)
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Half Wave (λ/2)
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Quarter Wave (λ/4)
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5/8 Wave
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Free-Space Wavelength (no VF)
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Common Amateur & SDR Frequencies
Band / Use
Frequency
λ/4 (free space)