1 4 Wave Antenna Length
The distance between one point to another adjacent point in a wave is known as the wavelength.
1 4 wave antenna length. Bulkhead mount weatherproof zeus coax surge suppressors. The normal quarter wave ground plane antenna consists of a vertical radiator which is insulated and centered between 4 horizontal surrounding. The most widely used formula to calculate the approximate overall length of wire required for a dipole is. Vhf 5 8 wave cutting chart 3db frequency mhz.
Ground radials should be at least this long 1 4 wave. The results are conveniently displayed in inches. Click on calculate and the opposite value will be displayed in feet and inches or frequency in megahertz mhz. It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength.
Divided by frequency in mhz. This calculator is designed to give the vertical length height of a quarter wave ground plane antenna and the length of each of the four radials often called radiators for the frequency chosen. This calculator will help you to calculate the different wavelength of antennas based on the frequency. The half wave dipole antenna.
The radiating element is a quarter wave λ 4 and the radials are 12 longer. Here is a handy chart for determing 1 4 wave verticals 1 2 wave dipoles and full wave loop lengths. Ahh the good old quarter wave ground plane. This calculator can be used to design a quarter wave ground plane antenna with radials.
The antenna calculator above uses this formula as a starting point to calculate wire lengths for the dipole. There are usually four radials three being a minimum but you could use up to six. All antenna lengths in the information below are in feet and are the results based on the standard formula of 468 fmhz total length in feet. Your vertical antenna s approximate length is.
Enter one only one value the desired frequency or the antenna length in any length field. Always use a quality standing wave meter or antenna analyzer to check the final installed system. The formula for calculating the approximate length of a quarter wave vertical antenna is. 71 5 frequency in mhz.
1 4 wave 1 2 wave 5 8 wave 3 4 wave full wave. This calculator is designed to give the vertical length height of a particular whip type antenna or the frequency of it.