By: KA5WNX
The Short V Beam Antenna
An All Wire Beam
The Short 'V' Beam antenna is generally composed of two or more elements arranged to provide a directional aerial where space is at a premium yet yields a very low angle of RF radiation and high gain is required.
This design of the broad-band V Beam yields a forward gain of 6dbi. This is an amazing antenna when used for shortwave broadcast listening and Ham Radio because it has an ideal side-to-side RF rejection ratio.
This design of the broad-band V Beam yields a forward gain of 6dbi. This is an amazing antenna when used for shortwave broadcast listening and Ham Radio because it has an ideal side-to-side RF rejection ratio.
Once we have the Inverted V established, we can then run a non-conductive rope from the driven element to a pole in the desired direction. We will use the normal Yagi element spacing for this antenna.
The Formulas for the Inverted V driven element is: 234/frequency in MHz = Feet & inches on each leg.
Parasitic Elements (Director elements): 225/frequency in MHz.
Spacing between Driven Element and 1st Director: 98.4/frequency in HMz.
Spacing between 1st Director and second: 123/frequency in MHz.
Spacing of all other Director elements: 148/frequency in MHz.
The Formulas for the Inverted V driven element is: 234/frequency in MHz = Feet & inches on each leg.
Parasitic Elements (Director elements): 225/frequency in MHz.
Spacing between Driven Element and 1st Director: 98.4/frequency in HMz.
Spacing between 1st Director and second: 123/frequency in MHz.
Spacing of all other Director elements: 148/frequency in MHz.
