1 4 Wave Mobile Antenna Calculator

Choose from quarter wave half wave the powerful 5 8 wave 3 4 wave or full wave and calculate minimum lengths of required radials and then shop for your needs on our other pages and select from our inventory of aluminum fiberglass wire coax connectors and other parts and.

1 4 wave mobile antenna calculator.

This calculator is designed to give the vertical length height of a particular whip type antenna or the frequency of it. Enter your desired frequency mhz of operation i e. One might have seen long straight rod on the car it is known as whip antenna. This calculator is designed to give the vertical length height of a particular antenna for the frequency and wavelength chosen.

There are usually four radials three being a minimum but you could use up to six. The antenna calculator for half wave dipoles. It consists of flexible wire. Frequency calculations are based on radio waves traveling at the speed of light 299 792 458 meters per second.

7 15 for the 40 meter band. This calculator on the whip antenna mentions formula or equations used for calculations. I guess you could see it as the spike on a x mass tree. Enter one only one value the desired frequency or the antenna length in any length field.

This calculator can be used to design a quarter wave ground plane antenna with radials. Whip antenna calculator monopole antenna calculator. The radiating element is a quarter wave λ 4 and the radials are 12 longer. Of nearly all antenna designs the 1 4 wave requires the most space making it difficult to place with other antennas on a mast.

The distance between one point to another adjacent point in a wave is known as the wavelength. Both can be used with or without a 1 1 balum although the use of a 1 1 balum will change the feed point of the unbalanced coax to a balanced antenna load there by reducing the chance of radiation from. If you have no particular preference within a given ham radio band then simply enter its center frequency i e. This calculator will help you to calculate the different wavelength of antennas based on the frequency.

Use our simple calculator to determine approximate dimensions of materials needed to build a vertical antenna. A horizontal 1 2 wave length dipoles will have a feed point of about 73 ohms while the inverted vee antennas have a feed point of about 52 ohm s. Ahh the good old quarter wave ground plane. It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength.

I have been making a few 1 4 wave antennas lately mainly for uhf and the ghz bands with good success so i decided to create a calculator to simplify the process and maybe get some people who have not tried one before to give it a go.