Antenna calculations
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Antenna calculations

Ground Plane Antenna

Formula (234 / f MHz):
/ MHz

Vertical: Feet | Radials: Feet

Halfwave Vertical

Formula (468 / f MHz):
/ MHz

Vertical element: Feet

Quad Antenna

Formula (1005 / f MHz):
/ MHz

Total length: Feet | Each side: Feet

5/8th Wave Vertical

Formula (585 / f MHz or 178.308 / f meters):
/ MHz

Vertical element: Feet

Dipole and Inverted Vee Antennas

Formula (468 / f MHz):
/ MHz
Percent smaller for Inverted Vee:


Dipole total: Feet | Each leg: Feet
Inverted Vee total: Feet | Each leg: Feet
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