Antenna modeling software and other utility programs. Mmana gal eznec with spreadsheet antenna definition. The basic idea is to take a folded 14wave ground plane antenna whose overall length is set to be resonant at the lowest. Steve will tell which antenna modeling programs are free or. The w8io wb0dgf antenna site antenna modeling links. Our antivirus analysis shows that this download is virus free. Simulation of wire antennas using 4nec2 a tutorial for beginners version 1. To download the product you want for free, you should use the link provided below and proceed to the developers website, as this is the only legal source to get 4nec2.
Yagio runs under windows 2000, xp, vista, win 7 and likely win 8. Antennamodeling programs are computer programs that use mathematics to. Modeling a 58 wavelength linear loaded antenna for the cb band and tuning it in the modeling software. The package comes with a number of example models, and there is an extensive indexed help 2 facility with information on all aspects of the program. A balun isnt a nec primitive, it would have to be modelled. Describe your experience with the eznec antenna design software by w7el and tell us why you give it the rating you did required. Intersecting volumes, shortthick wires at sharp angle, unequal segmentation for parallel wires, too low hight, large radius or length changes at. Yagio is similar to lpcad, it uses keyboard commands instead of a mouse menu. Its primarily geared to the use of eznec demo programs, specifically the version 5 demo. On the other hand, some guidelines to simulate multiband and wideband antennas. With a sample version and a full paid version of the book, the reader will start from downloading and installing 4nec2, learning the 4nec2 user interface, build a 20m dipole and analyze it at various heights above real ground then view the different antenna patterns.
A page showing some of the antenna modeling software out there a person can use to help model an antenna for performance on many levels. Only when someones test driven the best freeware out there does it make sense to recommend a paid piece of software. All basic software like mmana 4nec2 eznec am etc all provide within the limitation the same result logical but all have more or less the same borders. We have looked at the 43 foot antenna available from dx engineering and zero five alongside the bigir product from steppir. Sep 14, 2015 4nec2 is a freeware antenna simulation software program.
The geometry tab in the 4nec2 edit window is where you will define your antennas structure. Radiation pattern shown is typical figure8 pattern. An nec4 license must be obtained before purchasing eznec pro4. You simply double the applied voltage if that matters for actual total power, and divide the impedance by 4 afterwards. This article summarizes some useful advices for efficient antenna simulation with programs based on the nec2 algorithm, developed by the lawrence livermore laboratory. Antenna modeling for radio amateurs foothills amateur radio. Nec visualization, optimization and sweeping tool the 4nec2 tool is a windows and nec2 or nec4 based tool for both the starting and experienced antenna modeler that can be used to create, view and check your antenna geometry structure and generate, display and compare near and farfield radiation patterns.
The number of false positive virus reports has been steadily increasing for various files in all versions of eznec, including ones which have been in use and unchanged for many years. Antenna modeling software and other utility programs by dan maguire, ac6la autoez automated use of eznec. Software piracy is theft, using crack, password, serial numbers, registration codes, key generators, cd key, hacks is illegal and prevent future development of eznec arrl v. Available antenna design software eznec and 4nec2 are based upon the numerical electromagnetics code, or nec, which is a popular antenna modelling system for wire and surface antennas originally written in fortran in. Each line will be assigned a reference number, a number of segments, and a radius. The program can be used to model an antenna, and then determine through simulation properties such as the radiation pattern and swr of the modelled antenna. Autoez works in conjunction with the eznec antenna modeling program and allows you to use variables to control diverse aspects of the model.
There are two eznec pro programs, eznec pro2 and eznec pro4. It is very useful for those designing home made antennas for their rtlsdr or other radio, or for those just trying to understand how antennas work. What is the best software used for antenna design and simulation. I spent a couple of days installing the software and reading the tutorials. The w8io antenna site nec benchmarks 2 may 2019 4nec2 software benchmarks. Though it is not as accurate with antenna temperature and gt as the tant program in combination with reading the 3d pattern from eznec or 4nec2. When a halfwave dipole is close to ground, the impedance is lowered to near 50 ohms. I try to simulate every antenna i get in my fingers.
The two leaders are eznec not free of charge and 4nec2 completely free. As its been 7 years since ive done so, i surveyed the available software again and found eznec 5. Eznec features an innovative 3d pattern display that allows you to highlight any azimuth or elevation slice and directly read the gain at any angle with a fully positionable cursor, or. To see the antenna radiation pattern and take off angle. In the past ive used eznec, and elnec before that having purchased that software from w7el, and have always been very happy with the. How to produce a nec antenna file and what software to. In order to calcualte the agt in enzec you need to run a 3d plot in freespace both are the same thing. Eznec or 4nec2 are the most popular start with the best basic features, get fancy later. How to produce a nec antenna file and what software to use it with. However, we must warn you that downloading 4nec2 from. What is the best software used for antenna design and.
Starting eznec modeling 3 ctu, dayton, 2011 the eznec 1 software, created and marketed by roy lewallen, w7el, can be obtained from. Apr 02, 2019 relatively fast, often low cost or free software and offers an easy entry into antenna simulation. The big 3 in ham antenna modelling software are eznec, 4nec2 and mmanagal. Design model build compare 52420 antenna modeling getting started 12 design compare model build. Jul 24, 2019 eznec features an innovative 3d pattern display that allows you to highlight any azimuth or elevation slice and directly read the gain at any angle with a fully positionable cursor, or. Web research shows that this is also affecting many other programs. Learn how to use 4nec2 in the design and analysis of antenna systems. Especially designed for antenna modelers, 4nec2 is a simple tool for designing, optimizing and verifying 2d or 3d geometry structures. The big 3 in ham antenna modelling software are eznec, 4nec2 and mmana gal. Learning models or a poor workman always blames his tools.
Eznec or 4nec2 are the most popular start with the best basic features. As agt is calculated in freespace on the amount of power loss from a 3d plot. Ive downloaded qantenna and 4nec2 to try and model my antenna and see what i can do, however neither of these programs allow you to make an antenna as far as i can tell they require you to import an nec file. Here is a small collection of eznec files of antennas i have interest in. In any nec2 program, such as 4nec2, you define your antenna by first building a series of lines.
Eznec antenna software by w7el ordering information. Shareware junction periodically updates pricing and software information of eznec arrl v. Eznec was developed to work on windows xp, windows vista, windows 7, windows 8 or windows 10 and is compatible with 32bit. Since nec is available to so many, it got the nod for this project. Available antenna design software eznec and 4nec2 are based upon the numerical electromagnetics code, or nec, which is a popular antenna modelling system for wire and surface antennas originally written in fortran in the 1970s. Eznec is on par with any number of other professional for sale pieces of software, but it doesnt make sense to recommend it first. It is very useful for those designing home made antennas for their rtlsdr or other radio, or for those just trying to understand how. View antenna display, showing the wires making up the model of the fiveelement beam, with currents and 2d slice superimposed to show orientation. Thanks for downloading and reading this definitive guide to the widely popular 4nec2 antenna modeling software. Qradiopredict qradiopredict is an experimental software for vhfuhf propagation prediction and radio coverage anal. My antivirus software says eznec is infected with a virus. Using eznec to model antennas arlington amateur radio. The most popular versions among the software users are 5. While more elaborate antennas than those discussed here can be modeled and the program will run them, on very.
Relatively fast, often low cost or free software and offers an easy entry into antenna simulation. If you find mistakes in this book, they are all mine. This document was written to cover the very basic functions of eznec. It provided results beyond nec which i tend to find accurate due to testing done. Jul 11, 2019 especially designed for antenna modelers, 4nec2 is a simple tool for designing, optimizing and verifying 2d or 3d geometry structures. This is a 3 rd party book and is not connected to arie in any way.
However, we must warn you that downloading 4nec2 from an external source releases fdm lib from any responsibility. As a user of eznec 3, 4, and 5 pro, i had never even seen raw nec code before. The advices and rules of design have been collected from the users manuals of some programs and from technical articles about antenna simulation. Best software for ham antenna simulation time owned. Either 4nec2, mmana gal, or eznec models would be appreciated. I also know eznec, which is free and very simple to use. Marconis eznec model for the as super magnum 12 wave gp. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. There are many times when you have a large modeling problem or you have many smaller problems and you need the fastest system possible to solve the problem quickly. Of the numerous front ends available to run nec, eznec and 4nec2 seem to be at the top of the stack. Using eznec to model antennas a hands on demonstration of the basic concepts of using the eznec application.
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