Msdos antenna maker it allows to quickly calculate dimensions for quads antennas, yagi antenna, inverted vees antennas as well as jpoles and traps to. Using this software, you can design and build your own yagi antenna. Ya antenna software is really good for designing yagi antennas i have used ya many times to do most of the yagi designs, and i have gotten extremely good performance with all the antennas i have built. This calculator requires only the entry of the center of the frequency range your cubical quad antenna will be used at. Building a 4 element cubical quad iw5edi simone hamradio.
First you can taylor it to the needs of your communication local or dx and optimize it for the frequency you talk on and to the needs of your environment make it strong if you live in a harsh one where ice and wind is a problem. Cubical quad antenna calculator in java script let you calculate elements size and spacing in inch and meters. Order practical antenna handbook with cd rom by joseph j. Here is a simple antenna calculator for two popular forms of ham radio hf wire antennas. Its coinductive secret was that it used a folded dipole to feed the quad. Long yagi are commonly used from the 144mhz amateur band to the 2. Antenna maker antenna design program for quads, yagis, inverted vees, jpoles, trap dipoles and more. It is just as pointless the quad beam we discussed in an earlier chapter constructed for hf. The gain of an an antenna with parasitic elements varies with the spacing and tuning of the elements, and thus for any given spacing there is a tuning condition that will give maximum gain this spacing. Hexbeam construction page by k4kio excellent hexbeam site by leo shoemaker, k4kio.
Logarithmic periodic dipole antenna calculator microstrip patch antenna calculator. Yagi calculator is a program to assist with the design of long yagi antennas. Antenna calcpack is the latest offering from mogpie. The web site below contains a free download software tool for designing a. In this menu, you need to submit values of multiple. Cubical quad antenna javascript calculator for cb and amateur radio communications. The purpose of the calculator is to give you the needed sizing to construct a good multielement cubical quad antenna for amateur radio use. Coax calculator for windows cubical quad antenna calculator kd6dks.
A good way to adjust a yagi antenna, is by facing the antenna straight up, so the reflector is parallel to the ground or in this case at an angle. It is quite possible, that other calculators deliver slightly different results. Emmcap software for modeling of arbitrarily shaped wire structures and the computation of their electromagnetic behavior, including radiation and scattering problems. Yagi calculator is a program build to produces dimensions for a dl6wu style long yagi antenna. The gain of an an antenna with parasitic elements varies with the spacing and tuning of the elements, and thus for any given spacing there is a. This can be provided by any good antenna manufacturer, often it is already found in their adds. Hence here is the double biquad antenna and biquad antenna calculators for handmade antenna based on average data.
The plot below shows only the 20 meter elevation pattern. This is a collection of valuable antenna design calculators including quad design for a quad beam, antcalc for common antenna types, inductor calculator and a r esonance calculator for calculating the resonance of a tuned lc circuit or trap. Enter center frequency to be calculated for a quad. Enter the desired frequency then click on calculate and the optimum values for that combination will be displayed in feet, inches and fractions of. Ok well start with a specification of my present quad 2 element. Quad antenna javascript calculator for cb and amateur radio. Horizontal or vertical polarization of an cubical quadantenna is determined by placement of the feed point feed gap on the driven element parasitic elements need to be mounted in the same orientation as the driven element. A program that lets you see what the polar diagram of your relatable beam antenna actually looks like. Avanti antennas produced a little quad called the pdlii. A quad antenna is typically a single wire formed into a square. At the back of the antenna,is a length of pvc pipe placed there to keep the antenna from spinning. All models are built using only the finest materials available, including but not limited to cast aluminum alloy spiders, and only the finest quality fiberglass spreader arms. Signal engineering antennas worldwidedx radio forum. N1los notepad tower page mark lowell n1lo, has a page on putting up antennas on towers.
Quoting from william orr, whereas parasitic beams having twenty or thirty parasitic directors are efficient, high gain antennas, it would. Antenna software antenna design software, 2 element beam, quarter wave. Having had a gem quad hf 201510m for a few years, back in the early 80s, i can testify to the quads slight advantages over a tribander yagi with the same. Antenna efficiency calculator antenna efficiency calculator, parabola antenna antenna eirp calculator enter power, antenna type, frequency, coax type, coax lenght, press for eirp antenna gain vs height this calculator computes the gain and elevation angles for various. Jul 14, 2014 hence here is the double biquad antenna and biquad antenna calculators for handmade antenna based on average data. The optimum gain of any antenna with parasitic elements varies with the spacing and tuning of the antenna s elements. Yagicad is a fully integrated analysis and design package primarily intended for vhf yagi aerials. Some are based on lookup tables, some completely hide their algorithms.
The most popular book on antennas ever written, widely known as the antenna builders bible, joseph j. Antenna design freeware 1d and 2d arrays from mei software. This link is listed in our web site directory since tuesday apr 18 2000, and till today quad calculator has been followed for a total of 61597 times. The frequency scaling formulas for cubical quad antennas are shown in this picture. There are many reasons you should considering building your own antenna. Long yagis are commonly used from the 144mhz amateur band to the 2. Uhf quad antenna calculator revisiting rectangular loop. However, adding quad elements produces diminishing returns. This design can then be optimised or scaled to suit particular requirements.
Small beam antenna maco yquad dual polarity quality that lasts. This was the only test were a quad lost against a beam. This quad,fed by 2 coax lines, was able to work both vertical and horizontal. This calculator is designed to give the critical information of a particular beam antenna, in this case a seven element yagi, for the frequency chosen. It uses the graphs and principles developed by dl6wu and printed originally in the german radio magazine vhf communications march 1982. We can clearly see the gain of two broadside elements 14 wave apart is barely over 1 db, and this is what the antenna models using modern software show. This quad, fed by 2 coax lines, was able to work both vertical and horizontal. Enter the desired frequency then click on calculate and the optimum values for that combination will be displayed in feet, inches and fractions of inches, and in meters. Dec 29, 2015 yagi calculator is a program build to produces dimensions for a dl6wu style long yagi antenna. Building and experimenting with antennas can be an interesting part of the radio hobby. Cubical quad antenna js calculator iw5edi simone hamradio. This page covers 3 element yagi antenna calculator. Antenna software at large collection of radio related software at web site antenna solver provides much greater flexibility in the construction, analysis, and interpretation of radiating structures using a rewritten nec module. The name quagi is a simple contraction of quadyagi.
Listed under the antennas antenna calculators category that is about antenna design calculators. It is just as pointless the quad beam we discussed in an. The only thing you need to know is the vertical or horizontal beam with of the single antenna. Hf dipole antenna this antenna software will help you design a simple wire dipole antennas for 1 30 mhz. Hex beam construction page by k4kio excellent hex beam site by leo shoemaker, k4kio. Free radio frequency software, antenna design and calculators. Horizontal or vertical polarization of an cubical quad antenna is determined by placement of the feed point feed gap on the driven element parasitic elements need to be mounted in the same orientation as the driven element. Well in the early days of amateur radio nearly everything was matched by either, a gamma match, beta match, hairpin match, 75 ohm 14 wave coax match, or one of a few hundred other home made matching devices. These include calculators for dipoles, loops, verticals, inductance, resonance tuned circuit and a complete quad beam antenna.
The formula and basics of yagi antenna calculator are also explained with example. The article was titled extremely long yagi antennas. A 3element cubical quad has more gain than a 3element yagi. Simple gain antenna for the beginner qst august 1981, pp. If you have no particular preference within a given ham radio band, then simply enter its center frequency i. The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a useful pattern. The optimum gain of any antenna with parasitic elements varies with the spacing and tuning of the antennas elements.
The main category is antenna design calculators that is about antenna design calculators. The spacing of each element is the same and all directors are the same size. The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a. A new trend in antenna modeling software is to build antennas that are resonant. Click on calculate to display the critical antenna measurements in both inches and centimeters. Small beam antenna maco y quad dual polarity quality that lasts. The cubical quad antenna calculator for citizens band cb radio and amateur radio communications to calculate the spacing between the reflector and driven elements and directors.
Yagi calculator is a windows program that also runs well on linux, ubuntu 8. However i highly recommend to follow my instructions, which are based on computer antenna simulation software 4nec2, to maximize performance. The many discussions i had on the ham bands regarding the yagi beam vs. Chameleon antenna an innovative antenna design for fixed portable or mobile use, and covering 680 meter. This software can not only be used to design but also to find out antenna gain, stacking distance, and standing wave ratio swr to design the antenna, you need to go to task design yagi menu. Yagi calculator is a free antenna design and analysis software for windows. His location was a farm field in tennessee, back in the mid 1960s, so there was really not much in the way of obstacles to perturb signals arriving at one antenna versus the other, except of course when the.
This is a beam antenna facing to the right or east if you prefer. Here we have collected some links to building instructions for 11m antennas on the internet. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. A collection of antenna design calculators for the diy enthusiast or professional antenna designer. This tool will help you dynamically to calculate the spacing between the reflector, driven element and directors. In a quagi the first two elements of the antenna are quads, the directors are all simple straight wire elements, as in the traditional udayagi design.
The 2element quad has almost the same gain as a 3element yagi. With yagicad it is possible to enter a base design from scratch or use one of a number of saved well known designs. Antenna, ve3sqb ham radio antenna design software programs. Cubex currently offers cubical quad antennas for 70 centimeters through 40 meters. The yagi is 2 elements at 50 ft and the center of the 2 element quad is at 50 ft. The maco vquad is a directionalcombined verticalhorizontal polarization plus high gain of 11 db 14 db stacked makes the vquad an ideal inexpensive beam for pushup mounting stacks, too. About quad calculator the resource is currently listed in in 3 categories.
The quad at very best barely has 1 db gain over a dipole, and at worse has loss. Note that frequency is measured in megahertz mhz and the total length of each element is measured in feet ft. A comprehensive guide to the construction, design, and performance of. Carrs practical antenna handbook, third edition is a work for anyone, ham radio operators, shortwave radio listeners anyone with an interest in antennas, from the newest of novices to the. This calculator requires only the entry of the center of the frequency range your quad antenna will be used in. Welcome to cecils amateur radio home page cecil moore w5dxp, ex wn5dxp, of tyler tx, has a. This antenna used to be called the vq2 quad for a long time just to signify that is. I wanted to know exactly which antenna i should keep as the ultimate. This gave the antenna more gain than a simple quad. The yagiuda antenna is the most recognized antenna. Antenna calculator and design software electroschematics.
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