Inverted-V Antenna: Difference between revisions
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The '''inverted-V''' is a variant of the [[Dipole Antenna]] supported at a single central point, with the two legs sloping down toward the ends. It needs only one mast, which makes it a common practical compromise. | The '''inverted-V''' is a variant of the [[Dipole Antenna]] supported at a single central point, with the two legs sloping down toward the ends. It needs only one mast, which makes it a common practical compromise. | ||
== | == Configuration == | ||
The feedpoint sits at the apex (the configured height) and the legs | The feedpoint sits at the apex (the configured height) and the two legs slope down at roughly 40 degrees. The default length is 10.8 m; a length of 0 selects the resonant length for the operating frequency. | ||
== Characteristics == | == Characteristics == | ||
Latest revision as of 08:54, 5 July 2026
The inverted-V is a variant of the Dipole Antenna supported at a single central point, with the two legs sloping down toward the ends. It needs only one mast, which makes it a common practical compromise.
Configuration[edit | edit source]
The feedpoint sits at the apex (the configured height) and the two legs slope down at roughly 40 degrees. The default length is 10.8 m; a length of 0 selects the resonant length for the operating frequency.
Characteristics[edit | edit source]
- Typical gain around 1.8 dBi, a little below a flat dipole at the same apex height, because the average wire height is lower.
- Nearly omnidirectional; the sloping legs fill in the nulls a flat dipole has off its ends.
- Typical takeoff angle around 40 degrees: well suited to short and medium range ionospheric coverage.
- Slightly wider SWR bandwidth than a flat dipole.
When to use[edit | edit source]
Choose the inverted-V when simulating a station with a single support, for regional coverage, or when an omnidirectional pattern is preferred over the dipole's broadside preference. For long-distance work a high flat dipole or a Yagi performs better.