4nec2 Forum

When I put it in a system in windows7 and registered registry, I was usable smoothly. digitalhome. 4NEC2 is a freeware antenna simulation software program. Input port and input output port declaration in top module 2. Egal ob Ärger mit der Hardware oder einfach nur eine Tarifberatung beim Anbieterwechsel. The horizon is shown on the 4NEC2 graphs as 90 degrees. Radioamator. What the Cable TV and Satellite Compies will Never Tell You - posted in General Chat: Hello all! I am an electronics specialist who likes experimenting with electrical technology. For example, the uglier the antenna, the better it works. The main attraction of 4NEC2 is the graphical entry of antenna models. Just wondering if it is useful to the small time antenna experimenter. This video is the first in the series of NEC software development videos giving a bit of the background of an issue I found with the 4NEC2 software evolve functionality. bat file and corresponding model files for running under 4Nec2 based on the model defined in model. 4NEC2 este un program relativ simplu şi prietenos cu o paletă bogată de exemple din care se pot învăţa multe aspecte din tainele antenelor şi ale propagării. Post 3090005 - The Digital Forum is the place to discuss the latest in home automation, home computing, home theatre, hdtv, satellite radio and more. 1 f/D unit, sorry for the typo in my previous post). This is a general topic for all antenna and grounding and radio accessories discussions. The horizon is shown on the 4NEC2 graphs as 90 degrees. 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. It's easy to simulate with e. 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. I cannot figure out how to model a phase shifted antenna. Hello I am working on circular antennas RHCP and LHCP. Generally, software analysis is not a substitute for field tests. I use Eznec from years ago. We do not use outdated, amateurish programs like EZNEC Pro/4 - NEC4. Furthermore, EZNEC in comparison to 4nec2 indicates that the antenna needs to be slightly longer, namely: 40. In MMANA GAL the phases are perfectly opposed which makes me wonder if it's accurate. We are currently a members of the local San Diego SANDRA and ECRA radio clubs and normally monitor The SANDRA Otay Mountain Repeater, 146. I am pretty familiar with 4NEC2. MAILBAG - SolderSmoke114. Page update of 7 August 2019 Over several decades, Barry Booth (W9UCW) and a group of fellow hams, have done an incredible amount of well-documented and systematic, repeated tests to assess the performance of various. CocoaNEC Free NEC software for the Mac OS-X Tiger operating system by W7AY. As with the half-square, I am interested in low height placement of the system because that is what I am going to do at my QTH. 4NEC2 Free NEC-2 software with excellent GUI - new web site 3-1-13. Since you prefer a minimalist approach to test equipment, as an. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. 4nec2 antenna modeler 4nec2 is a completely free nec2, nec4 and windows based tool for. These models have varying degrees of accuracy. Raw Gain and Net Gain were within 0. 4NEC2 is my personal favourite. 4nec2 tutorial | QRZ Forums. AJW-Referent unseres Distriktes, haben für den 16. About the Book. The model is in NEC-4. 4NEC2 are şi dezvoltări mult mai sofisticate care însă se vor descoperii pe măsura utilizării lui şi a consultării documentaţiei şi a discuţiilor pe forum. I used vector phasing to obtain a. inp` and the other one with `*. net antenna forum and the QRZ. It was designed with 4nec2 NEC based antenna modeler and optimizer for 145/220/440MHz bands. The program can be used to model an antenna, and then determine through. It is very useful for those designing home made antennas for their RTL-SDR or other. Some variations of the simple bow tie antenna optimized using computer modeling can work quite well for those living in good signal areas. Have a question regarding wire antennas for general coverage. 1 … Go to page. Does anyone know where I can find some good tutorial/guide to get a basics of how to use 4nec2. The cable coming from the housing appears to be 300 Ohm balanced line. The 4nec2 output is shown in the thumbnails below. Hier findest du Rat. How to Build Portable Go-Boxes For Your Home And Abroad. The third and last version of the long wire portable antenna uses a unun so that you can connect the antenna to the tuner with coax. International Electronic Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service. As you see, this is inherently lossy design (14% structural loss) and been so low above the ground, the antenna efficiency is even less in far field (Radiat-eff. I'd like to say hi to everybody. A coax cable is about 0. 1 f/D unit, sorry for the typo in my previous post). I am slowly learning. Horizontale Schnitte durchs Diagramm 2. Just google 4nec2 or eznet examples. la similitude de resultats EZNEC et 4NEC2 m'a convaincu d'utiliser 4NEC2 (les avis éclairés de participants du forum aussi, merci a eux) Je ne suis pas encore un expert de nec, mais je progresse 73's. 4nec2 ermöglicht die Darstellung von Strahlungsdiagrammen in 3 Varianten: 1. This is a general topic for all antenna and grounding and radio accessories discussions. All requests will be deleted and a forum infraction issued. Antenna Simulation Tutorials using 4nec2. electronic) A place to show and share your electronics schematic drawings. Experimental prototype antennas always work while the production versions never seem to work as well. But for optimization purposes 4NEC2 is far better than Eznec. Any azimuth or elevation slice can be highlighted. It was designed with 4nec2 NEC based antenna modeler and optimizer for 145/220/440MHz bands. Experimental prototype antennas always work while the production versions never seem to work as well. What is a Balun and why do I need one? Within this section we will look at the various methods and requirements of a balun in the hope that you will be better placed to make the right choice for your antenna. net is a Web site dedicated to ham radio (amateur radio). The 3 element Yagi was designed on 4NEC2. It is an excellent antenna modeling system which does for antenna modeling what RMDLX does for wireless link modeling. exe) 4nec2 (zip-file). I cant seem to figure out how to get it to figure a 90 degree phase shift stub. cc - generate a {4Nec2}/models/model. The 4NEC2 results are from simulations described in the immediately previous post. pw/download?file=4nec2+examples Read Online 4nec2 examples: http://qcg. 4NEC2 va tres bien. I invite all members who are good in theoretical knowledge, or have good measurement skills & equipment, or have made a DIY CoCo and have good/bad experience of making their CoCo to. Dipole Antenna Calculator. source code to generate. net forum and model tuning I have got quite close to actual measurements. As for 40m dipole at this height, it doesn't work very well, and finally I became curious enough to overcome my laziness and did some modeling in 4nec2 (4nec2 is popular free antenna modeling software -- get your copy). ICT is a developer of design & photo and productivity software. Contact Author. Open SCAD is software for creating solid 3D CAD objects. Was wondering if lets say I have an antenna of fifty feet on each leg, and, you attach 3 lengths of ten feet each just hanging down from each half of the dipole spaced equally will it become an eighty foot wire antenna on that half of the antenna electrically?. To back this up, the modelled antenna measures roughly 10cm x 10cm and so has an aperture of about 100sq. If you have a tip you want to submit, please either contact us, or become an advocate for this application. I thought of trying the antenna design I had in mind to put it in 4nec2 for simulation. even do it without 4NEC2 or other antenna modeling program. Finite Element Method Magnetics, free finite element analysis program by Dr David Meeker (thanks to Dr Duncan Cadd, G0UTY, for the link). I understand that everyone else in the world uses Metric, You can convert these … Continue reading "Open Stub J-Pole Project - Completed (Many times)". Based on UHF Hourglass Loop posted by oneolddude in www. As with the half-square, I am interested in low height placement of the system because that is what I am going to do at my QTH. com antenna forum as well. You’ll find some discussion of antenna design on the Lumenlab forum. Anybody tried 4nec2 on Vista ? 9. Install under C:\4nec2 or another folder. Describe your experience with the 4NEC2 freeware antenna modeller and optimizer and tell us why you give it the rating you did (required). Here, an exponential function is used for the taper profile. 4NEC2 are şi dezvoltări mult mai sofisticate care însă se vor descoperii pe măsura utilizării lui şi a consultării documentaţiei şi a discuţiilor pe forum. On 17/10/2018 08:51, Spike wrote: To bring this back to the issue at hand, I claimed that "I'd have to say that none of what you say refutes my original contention that the. It just happens at 1/4 wavelength long the folded section that is grounded is an inverse of the section that goes from the feedpoint to the far end and the folded grounded section is transparent to the radio and it simply operates as a 1/4 wave monopole. A description of my other short 20 m dipoles (2x 3 m / 2x 10 ft fishing poles and 2x 2½ m / 2x 8 ft) is on this page. 1 f/D unit, sorry for the typo in my previous post). Interior Design Studio. The DFW Measure numbers are a summary of actual measurements at 25 ft from a location in Garland TX (described in a previous post). 2020 Physics Forums. 1 f/D unit (it's not f/D unit, but 0. As for 40m dipole at this height, it doesn't work very well, and finally I became curious enough to overcome my laziness and did some modeling in 4nec2 (4nec2 is popular free antenna modeling software -- get your copy). I know myself and quite a few others would love to see this feature but I know it's not okay to request it on the BI forums. 4nec2 discussion forum. 1 … Go to page. 4nec2\exe" folder, in your Word or Wordpad text editor. I use the 4nec2 to simulate my antennas but i think that 4nec2 can calculate correctly the axial ratio of antennas. 2 engine, 4NEC2, EZNEC, YO or AO when designing antennas. 4nec2 ermöglicht die Darstellung von Strahlungsdiagrammen in 3 Varianten: 1. This page contains links to files submitted by manufacturers, along with a number of other antenna-modeling files from various sources. The 150-175 nm max range is not very encouraging, as other antennas give 250-275 nm max range. Re: Helical Antennas The PWS one is better. I have done some changes in impedance matching arrangement and then simulated the new design with 4nec2 data in the country where this forum is hosted. inp` and the other one with `*. 4nec2 forum. That's not really useful. source code to generate. Each line will be assigned a reference number, a number of segments, and a radius. The NEC files may be used with any of the NEC-2 or NEC-4 programs such as 4NEC2, GNEC or cocoaNEC, however some of them with tapered elements may only be simulated accurately by NEC-4 or other MININEC-based software. IcnirpCalc. [BTW: I will be uploading 4nec2 Analysis for an IMPROVED HHH "soonish", which improves Hi-VHF Gain and esp. Tried to run msiexec Setup_4nec2 from the directory containg the. Mit Ubuntu 7. com antenna forum as well. 2D/3D Wireless Ray Tracing Educational Land A dissertation submitted to the University of Manchester for the degree of Master of Science by Research/Master of Enterprise in the Faculty of Engineering and Physical. net antenna forum and the QRZ. Along with the directory, the WRTH authors often review the latest shortwave listening hardware including SDRs and give out awards to the best units. Time for an update on 4nec2: I finally got into contact with Arie Voors, the author He is a very friendly person and actually sent me the source code of 4nec2, what a treat! I pointed out some minor bugs to him and he already updated his software to reflect that, could be some of you noticed that already:. Basically my idea was to cast a bunch of rays from an emitting object (in my code it is a 1 m^2 plate), find where they intersect a surface, reflect the rays off of this surface and see if. I would love to generate a 3D rendition of the coverage patterns made by the various antennas we use in our enterprise, (especially to use in presentations to the management) but I can't figure out how to do it. Anexo quer o meu ficheiro 4NEC2 quer o diagrama para construcao da antena. All requests will be deleted and a forum infraction issued. I will start an NEC thread on the forum and will try to respond to any questions. Variante gibt es die Möglichkeit, den Antennengewinn in Abhängigkeit von der Polarisationsebene darzustellen (horizontal oder vertikal oder Betrag. This strange looking antenna is a combination of Coupled-Resonator principle by K9AY and ¼ stubs to achieve low angle radiation pattern. In MMANA GAL the phases are perfectly opposed which makes me wonder if it's accurate. Antenna Modeling With 4NEC2. Robert BERRANGER F5NB (Article publié dans Radio-REF de janvier 2003) En janvier 2002, F5HUP décrivait une antenne du type « W3HH » qu’il nommait « Folded. 2-6m or 17-20ft). You can then compile the files while running NEC2D in a DOS window (Start:Run under 2000 and XP) or from 4NEC2 itself. NEW from Hi-Q-Antennas: HOW GOOD IS a Hi-Q Antenna? Follow one 24/7/365. 2020 Physics Forums. AJW-Referent unseres Distriktes, haben für den 16. 2D/3D Wireless Ray Tracing Educational Land A dissertation submitted to the University of Manchester for the degree of Master of Science by Research/Master of Enterprise in the Faculty of Engineering and Physical. Harmony and Power: Could Betty Have Heard Amelia Earhart on a Harmonic? (Revised August 2006) by Bob Brandenburg TIGHAR #2286. Install under the same folder as entered above. pw/read?file=4nec2+examples 4nec2 manual. But is this an accurate model? One limitation of 4nec2 (or better: the nec-2 algorithm) is, that the segment length must be greater than 1/1000 of the wave length. The script helps too but its the actors, who deliver the lines well, who drive the movie into emotional levels. Per A-D Specs and my 4nec2 Model of CM4228HD (with my HHH Interconnect Harness), the DB-8e has LESS Gain than either alternative, so I would recommend the LESS EXPENSIVE CM4228HD. Above: Screen shots from several EZNEC v. A 4nec2 model is also available. Register for a free QRZ account. Wire loss of 0 can be simulated in practice by regeneration. exe and the cutting edge nec4 is available only for purchase. It looks like he has a 30 dB better link, some of the other numbers don't feel like they. NEC based antenna modeler and optimizer. I was expecting 2 dounuts in the respective angles. It is an excellent antenna modeling system which does for antenna modeling what RMDLX does for wireless link modeling. Kan designen verkligen vara så urkass, eller är det fel på min modell/simulering i 4NEC2? Klarar kanske 4NEC2 inte att simulera på så små detaljer?. * Intel CPU is required on XP and Vista. I saw the plans for this on the internet (link to plans) by Allen Lowe (N0IMW). I understand that everyone else in the world uses Metric, You can convert these … Continue reading "Open Stub J-Pole Project – Completed (Many times)". This last step will add the 4nec2X. io group will be used for all discussion about the book. Si on connait bien Nec pas de probleme avec 4Nec2. nec file for simulation. Nikiml's Python Optimization Scripts were used to find the best values for ALL of the SYmbol variables in Dnes original 4nec2 file which would provide highest Raw Gain consistent with low SWR and good F/B & F/R Ratios. Below are images of the results of 4NEC2 analysis Top Image shows Gain in dBi (recall dBi=dBd+2. The world wide web's premiere hub for all things Virtual Reality. Hello! I am trying to design an antenna that is focused in the near-field. After it finished the winecfg form opened. I cannot visualize the physical costruction of segmented. I cant seem to figure out how to get it to figure a 90 degree phase shift stub. exe program installed with step 2. In vederea respectarii Regulamentului (UE) 2016/679 privind protecția persoanelor fizice în ceea ce privește prelucrarea datelor cu caracter personal și privind libera circulație a acestor date, incepand cu data de 25 mai 2018 la Radioamator. For sake of discussion assume 85 MHz (channel 6 VHF-Lo 82-88MHz). I must say I am quite impressed with the real-world accuracy of the 4nec2 antenna modeling software mentioned at the beginning of this thread. 7 cm in diameter. Brian -- Brian Howie. The design was carried out with the 4NEC2. Information. I never saw cyberFlyer's antenna. And everything for free. Other recommended sources for NEC related informations are the Nec-2 and Nec-4 user-manuals and. Werde jetzt Teil der Community!. As with the half-square, I am interested in low height placement of the system because that is what I am going to do at my QTH. 4nec2 forum. Antenna Modeling Links, Stealth Antennas, LPCAD, APRS, Cycling and Huskers may be used with any of the NEC-2 or NEC-4 programs such as 4NEC2, GNEC or cocoaNEC. Well, I was hopeing someone else would read them for him as I am not so sure I understand what I see there. This proves your power supply is state-of the-art switching type with good voltage regulation (i. Some variations of the simple bow tie antenna optimized using computer modeling can work quite well for those living in good signal areas. Può essere interfacciato a HFwin32. Antennas that are more expensive, bigger, and in violation of local building ordinances, work the best. Disclaimer: The opinions, beliefs, and viewpoints expressed by the various authors and/or forum participants on this website do not necessarily reflect the opinions, beliefs, and viewpoints of Digi-Key Electronics or official policies of Digi-Key Electronics. Other recommended sources for NEC related informations are the Nec-2 and Nec-4 user-manuals and. 5 I'll e-mail you directly as the answer might be a little long for this forum. Ich hab heute auf meinem Laptop die neueste Version von Ubuntu Linux (7. a little 4nec2 help? 11. CM Antennacraft FM6, original model by K6STI, converted to 4nec2 by holl_ands, 21Apr2015 CM Free Space, 98 MHz, 39 6063-T832 wires, inches CM holl_ands mods: Add FR/RP Cards & Rsrc. A folded dipole is an efficient TV antenna that is easy to construct. I must say I am quite impressed with the real-world accuracy of the 4nec2 antenna modeling software mentioned at the beginning of this thread. If you measure the A5000CP, you'll find its gain varies quite dramatically with frequency. exe program to the default 4nec2. Just google 4nec2 or eznet examples. 7'), a height of 66', sloping to 33' and 14 gauge antenna wire. Eugene Mah is on Facebook. In trying to model a stacked folded dipole and reflector I hit a problem trying to model this in 4nec2. After installed, I opened the bulid. 4nec2 advice sought 8. 4nec2里有建好的模吧。。。. The world wide web's premiere hub for all things Virtual Reality. International Electronic Discussion Forum: EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service. com antenna forum as well. The required inductance came out to about 10 uH. electronic) A place to show and share your electronics schematic drawings. The reflector was the killer. Phased Array Design Toolbox v2. 640, - offset, 107. 75 m (55 ft), VSWR is hardly influenced by ground quality. Forum Numerical Electromagnetic Code (NEC) based antenna modeler and optimizer by Arie Voors: 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and. 4NEC2 has an edit menu item to edit the NEC input file. Does anyone know where I can find some good tutorial/guide to get a basics of how to use 4nec2. The “Geometry” tab in the “4nec2 Edit” window is where you will define your antenna’s structure. NEC based antenna modeler and optimizer. First image a 5 meters vertical lead in wire connected to a 8 meters horizontal wire. These models have varying degrees of accuracy. Antenna builders: DIY SWR meter and ATU? I use 4NEC2 which will simulate your design so you have a good idea if your antenna will work. Experimental prototype antennas always work while the production versions never seem to work as well. I am slowly learning. Model of a 7MHz whip on a vehicle. modeling capacitance hat with 4nec2 for w8jk design to wrk 40m. Install under the same folder as entered above. There is a Yahoo Group dedicated to this book. I generally post those on the digitalhome. I'm using 4nec2 for my modelling. The 4NEC2 results are from simulations described in the immediately previous post. Forum Numerical Electromagnetic Code (NEC) based antenna modeler and optimizer by Arie Voors: 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and. The horizon is shown on the 4NEC2 graphs as 90 degrees. Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. I'd really like to fully understand and be able to visualize how the stub changes the impedance. Time for an update on 4nec2: I finally got into contact with Arie Voors, the author He is a very friendly person and actually sent me the source code of 4nec2, what a treat! I pointed out some minor bugs to him and he already updated his software to reflect that, could be some of you noticed that already:. When I put it in a system in windows7 and registered registry, I was usable smoothly. ICNIRPcalc permette di calcolare le distanze di sicurezza delle antenne rispetto ai limiti. Interior Design Studio. thank you very much for your interest in 4nec2 the definitive guide. I suppose to verify the above simulation results some convergence tests and average gain tests should be run. Antenna Simulation Tutorials using 4nec2. QRZ Forums - Antennas, Feedlines, Towers & Rotors for Sunday 30 July 2017 Showing 1-1 of 1 messages. This is a discussion forum of China Amateur Radios. The diagrams above illustrate the radiation patterns of two possible receiving antennas. (I mostly use 4NEC2), I had the. 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. A folded grounded ground plane is a parallel transmission line that is shorted at one end. bat file and corresponding model files for running under 4Nec2 based on the model defined in model. UHF Hourglass Loop analyzed using 4nec2 after finding "best" dimensions using nikiml's Optimizations Scripts. 4nec2 software to a group of hams at the OARC. 4NEC2 Antenna Simulator by Arie Voors • Based on the NEC2/4 Fortran Kernel • Uses the classic Method of Moments • Free, users forum, updated frequently. It is an excellent antenna modeling system which does for antenna modeling what RMDLX does for wireless link modeling. The reflector was the killer. All requests will be deleted and a forum infraction issued. Über das Forum Das LTE-Forum ist seit 2010 ein Begegnungspunkt für LTE-Nutzer. Yes,you're right it must be vertically polarised, no landrises here (the netherlands). Non rien a voir MMANA est basé sur MiniNEC, voir des tas de post à ce sujet dans ce forum. When I put it in a system in windows7 and registered registry, I was usable smoothly. As of June 2013 W6HIQ is an official HFN Pilot Station! Under W6HIQ call letters. This is a general topic for all antenna and grounding and radio accessories discussions. even do it without 4NEC2 or other antenna modeling program. Je to systém založený na 3D kartézské soustavě souřadnic. Then we'll use a handler to translate the geometry into a. I downloaded the 4nec2 software & the 3D plugin, but the application is not intuitive at all. At an impedance of 200 ohms it gives high swrs on all the bands. Antenna simulation tools based on NEC Fortran Program Eznec 4NEC2 (free) including optimizer and tuner design Transmission Line Utility (TLDetails, Dan Maguire, AC6LA ) Antenna Tuner Utility (included in 4NEC2) Slideshow 5479828 by yahto. That requires quite a bit more time and knowledge, but it can be done. If you measure the A5000CP, you'll find its gain varies quite dramatically with frequency. It contains articles about Amateur Radio by our members. 4nec2, Free Download by ICT. There are many other factors that come into play in antenna design, and computer programs like 4nec2 that can be used to design better antennas. 4NEC2 Antenna Simulator by Arie Voors • Based on the NEC2/4 Fortran Kernel • Uses the classic Method of Moments • Free, users forum, updated frequently. Post 3090353 - The Digital Forum is the place to discuss the latest in home automation, home computing, home theatre, hdtv, satellite radio and more. 1 dB, whether 0. by Arie Voors 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. exe program installed with step 2. Physically, what I think is happening is simply that regeneration increases the current flowing in the loop, which increases the radiation from the loop, which bends the local EM field lines towards the antenna to direct more energy into it. 4nec2 Antenna Sims by holl_ands Antenna Simulation analyzes using the (FREE) 4nec2 program, a control and presentation "shell" that can use either NEC2 (FREE) or NEC4 (NOT FREE) Method-Of-Moments Calculation Engines:. 4nec2 optimiser or equivalent. MMANA Free software based on MININEC from DL2KQ-EU1TT. Other recommended sources for NEC related informations are the Nec-2 and Nec-4 user-manuals and. 4Nec2 için söylenebilecek birçok şey var ancak kısaca özetlersek Öğrenmesi yaklaşık 1 hafta süren, uzmanlaşması bir ömür alacak bir program. I can't really comment on the best tutorial since there were none when I started using it. I entered the parameters of the OCF dipole listed in the latest Antenna Book and ran it on 4nec2 modeling software, using specified lengths (45. While I'm not one who has learned to do antenna modeling in 4nec2. This venerable program, originally written in Fortran, used to cost thousands of dollars and was classed as a munition - making it illegal to export (without permission). It's easy to simulate with e. Since then a couple of users have created good free or low cost front ends for it. 4nec2 Antenna Sims by holl_ands Antenna Simulation analyzes using the (FREE) 4nec2 program, a control and presentation "shell" that can use either NEC2 (FREE) or NEC4 (NOT FREE) Method-Of-Moments Calculation Engines:. Any suggestions?. by Arie Voors 4nec2 is a completely free Nec2, Nec4 and windows based tool for creating, viewing, optimizing and checking 2D and 3D style antenna geometry structures and generate, display and/or compare near/far-field radiation patterns for both the starting and experienced antenna modeler. Interior Design Studio. After installed, I opened the bulid. This proves your power supply is state-of the-art switching type with good voltage regulation (i. I'd like to post a full parametric 4NEC2 model of a single element (just for now) delta loop antenna which includes a gamma match. (I mostly use 4NEC2), I had the. First image a 5 meters vertical lead in wire connected to a 8 meters horizontal wire. antenna simulation in 4nec2. 7 cm in diameter. This is done by Simulation of antenna without matching stub. I invite all members who are good in theoretical knowledge, or have good measurement skills & equipment, or have made a DIY CoCo and have good/bad experience of making their CoCo to. The input file `*. nl/~arivoors. It was not possible. MMANA Free software based on MININEC from DL2KQ-EU1TT. Will you put dx8vb. ez' extension it is assumed you selected an EZnec type input file and you are asked if this file has to be converted to 4nec2 format. 1 f/D unit, sorry for the typo in my previous post). I downloaded the 4nec2 software & the 3D plugin, but the application is not intuitive at all. Facebook gives people the power to share and makes the world more open and connected. ro - un site al radioamatorilor romani de pretutindeni. I used 4nec2 to calculate the required resonating inductance for a short dipole made of aluminum pipe and with two large capacity hats. 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. The program can be used to model an antenna, and then determine through. Often forums, Facebook pages and other “free-speech” places offer food for thought about many details related to our hobby. After failure of experiment of twin lead, the accuracy of complex simulations by 4nec2 has become doubtful, unless confirmed by experiment. 4NEC2 Free NEC-2 software with excellent GUI - new web site 3-1-13. Since I had a Metal Fabrication background, I thought this would be an easy build.