Antenna modeling for beginners is an introductory guide to using modeling software for designing and evaluating. Eznec arrl lies within business tools, more precisely general. 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. Dec 14, 2019 eznec was developed to work on windows xp, windows vista, windows 7, windows 8 or windows 10 and is compatible with 32bit systems. Intel cpu is required on xp and vista systems but not on windows 7 and later. Review of new sdrplay rspdx softwaredefined radio sdrplay, a maker of black box sdr radios, has just introduced its midrange rspdx to replace its rsp2 and rsp2pro receivers.
No longer the domain of a few dedicated hackers and experimenters, this book is recommended reading for anyone interested in sdr, and considering the purchase of an sdr radio. Forum software in amateur radio eznec arrl version. Qso today interview with roy lewallen, w7el about eznec and. Eznec modeling of alphadelta dxee, multiband dipole antenna.
Eznec pro 4 has an identical user interface to eznec pro 2 and with identical features except that it offers the additional options of internal single or double precision nec 4. Relative to the overall usage of users who have this installed on their pcs, most are running windows 7 sp1 and windows 10. You can then run multiple eznec test cases while autoez automatically changes one or more variables between runs. Eznec modeling of alphadelta dxee, multiband dipole.
About eznec antenna analysis the resource is currently listed in in a single category. Software defined radio is intended for radio amateurs, short wave listeners, and anyone interested in the future of this exciting and fast developing area of radio. Contesting user interfaces of the future contests log due dates new hf operators things to do. Eznec versions eznec versions calculating engine segments price eznecarrl nec2 20 eznec 5. Cocoanec free nec software for the mac osx tiger operating system by w7ay. 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.
Roy is the creator of eznec, the popular antenna modeling software, and the author of many articles on radio and transceiver design, baluns, antennas, and inductors. Yagio is similar to lpcad, it uses keyboard commands instead of a mouse menu. Mmana free software based on mininec from dl2kqeu1tt. The nashua area radio society has been using a 3element wire beam antenna for field day for the last several years.
Eznec update, fccosha document in context, and more conversation. If necessary you can download a free maintenance update. The arrl antenna book is an excellent source on the various techniques and software used as part of our design process. Endfire 70 spacing total field azimuth plot cursor az 0. May 25, 2018 ability to use formulas and variables to construct and modify eznec wire models. Antenna modeling software and other utility programs by dan maguire, ac6la autoez automated use of eznec.
Its primary purpose is to enable viewing and analysis of the example antennas included with the antenna book. Amateur radio emergency service ares skywarn amateur radio network. View antenna display, showing the wires making up the model of the fiveelement beam, with currents and 2d slice superimposed to show orientation. Antenna modeling for beginners over the last decade, computerized antenna modeling has advanced greatly with inexpensive and even free modeling software now available. Describe your experience with the eznec antenna design software by w7el and tell us why you give it the rating you did required. This link is listed in our web site directory since tuesday oct 31 2000, and till today eznec antenna analysis has been followed for a total of 27026 times. Megans law search peoplesmart search orange county minimaker fair saturday, august 17th, 20. I highly recommend that anyone considering an antenna and tower system project like ours spend some time reading the relevant chapters of this book before undertaking the design process. It operates as a normal eznec demo program except when a specially signed eznec description file included on the.
Antenna modeling for beginners is an introductory guide to using modeling software for designing and. Hence, all of the files in the arrl antenna book, generated by the arrl supported eznec, are available for read, and, modification into 4nec2. Software defined radio american radio relay league. All versions of eznec, with the exception of pro 4, use the nec2 engine, the latest public domain version. Even without the eznec files, the arrl antenna book is a bargain, but the files make it even more so. The most popular versions among the program users are 5. Apr 05, 2006 on the site, there is a variety of software, including some programs that are free. If you went with multiple conductors emerging right from the source and didnt use the tiny center feed conductor trick. Our antivirus analysis shows that this download is safe. His contributions to the amateur radio hobby and advancing the state of art puts roy at the head of. In its purest form, and sdr receiver might consist simply of an analogtodigital convert chip connected to an antenna. The antenna uses three invertedv style elements separated by a little over 50 ft. The american radio relay league arrl is the national association for amateur radio, connecting hams around the u. 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.
Linux, software radio and the radio amateur qst october 2002, pp. The latest version of the software can be installed on pcs running windows xpvista7810, 32bit. Makegif make a gif jpeg png file from a clipboard copy free. Modeling, a powerful tool in amateur radio, can help you design antennas and optimize their performance. Autoez works in conjunction with the eznec antenna modeling program and allows you to use variables to control diverse aspects of the model. Using eznec to design a compact 23 cm band yagi array rick campbell march 2015 on the home eznec screen, enter the frequency.
First tower part 4 towerantenna system analysis and design. Eznec was developed to work on windows xp, windows vista, windows 7, windows 8 or windows 10 and is compatible with 32bit systems. Dec 24, 2014 antenna modeling for beginners over the last decade, computerized antenna modeling has advanced greatly with inexpensive and even free modeling software now available. Yagio runs under windows 2000, xp, vista, win 7 and likely win 8. Antenna modeling for beginners k3rrr kilo three triple r. I try to simulate every antenna i get in my fingers. And other em electromagnetic modelling software based on mesh engines such as feko em, ansys hfss, sonnet em which do cost a pretty buck.
That will require some diddling with the software but it should be doable. Starting eznec modeling 1 ctu, dayton, 2011 how to start modeling antennas using eznec greg ordy, w8wwv ctu, contest university dayton, may 19, 2011 version 1. Eznec pro 2 is a complete, easytouse analysis program which uses an integrated version of nec2 for calculations. At the entry level, there is a free package with all of the features of the commercial version, but limited in the complexity of the model. Shareware junction periodically updates pricing and software information of eznec arrl v. His contributions to the amateur radio hobby and advancing the state of art puts roy at the head of the class in amateur radio. Software defined radio attempts to place much or most of the complex signal handling involved in communications receivers and transmitters into the digital dsp style. Here i take a look at all three radios in their current lineup, the rsp1a, the rspdx, and the rspduo, with emphasis on the rspdx and its new lowband capabilities. Eznec, in and of itself, serves as a conduit to pass information to the nec core. The setup package generally installs about 17 files and is usually about 3. We turn to eznec antenna modeling software to see that the old rule of thumb of one half wavelength is correct. You could do this as well for some of the 5 band beam antennas or for a steppir. I modified my ameritron rcs4 a few years ago to try and make it auto band switching. A test case generator and execution environment to vary model parameters and graph the results calculations run by eznec.
It is a cleaver antenna switch that uses 4 states to switch 4 antennas using only the coax as a signal line to the remote switch. Qso today interview with roy lewallen, w7el about eznec. Apart from these there are yo, ao and also necwin plus, nec2go. The main category is antenna analysis software that is about software,antenna analysis software, for ham radio operators and hams. Software defined ham radio monday, december 28, 2009. The big 3 in ham antenna modelling software are eznec, 4nec2 and mmanagal. Dec 14, 2009 you could do this as well for some of the 5 band beam antennas or for a steppir. Click on the image to the left to see a screen shot from eznec v. Next, click on the wires tab to enter a set of wires as shown on the following page.
Split sources are used when you must place the source at the junction of multiple wires and then theyre placed at either 0% or 100% of the conductor length or iow at one end or the other. Here is a small collection of eznec files of antennas i have interest in. Starting eznec modeling 3 ctu, dayton, 2011 the eznec 1 software, created and marketed by roy lewallen, w7el, can be obtained from. Xlzizl picture the rest of your antenna system free. Using eznec to model antennas arlington amateur radio. Eznec modeling of alphadelta dxee, multiband dipole antenna jim andrews, kh6htv 19 march 2014 fig. Radiation pattern shown is typical figure8 pattern. Eznec varies from some other programs in that roys incorporated a version of nec directly into the application.
We turn to eznec antenna modeling software to see that the old rule of thumb of one. Free antenna modeling software kb6nus ham radio blog. An automatic optimizer that can adjust the parameters of an antenna model in eznec to optimally meet a defined set of performance goals. Autoez can take full advantage of all the features in eznec v. There are other, non nec or mininec kernel based programs. It took a little futzing around getting a cable made to match my lpt pin out but the. First tower part 4 towerantenna system analysis and. And, once they are translated, you can modify the card format, and, turn them into variable based models for optimization. The various forms of the eznec 3 product family are probably the most popular modeling packages used by the amateur radio community. A softwaredefined radio for the masses by gerald youngblood, ac5og this series describes a complete pcbased, softwaredefined radio that uses a sound card and an innovative detector circuit. While specially created to work with the eznec arrl program which also comes with the antenna book, theyre also standard eznec files which work normally with eznec v. On the site, there is a variety of software, including some programs that are free. Soon i hope to be able to switch 2 sets of antennas using 2 of the unified micro boards on the same lpt port giving the ability of switching up to 20 antennas in a band follwing format. Its from his software that the band following data is generated and it is through his program the lpt data is delivered into bcd format capable of running amplifiers and switch drivers that speak yaesu.