file for importation into other graphing programs if desired, including PLOT, by K6STI. I eagerly downloaded the EZNEC file and, because I have the + version of the software with a higher segment limit, changed all the wires to a consistent and even segmentation rather than keeping the tapering feature. 4NEC2 can open an EZNEC file with an extension of. Links to Other Relevant Web Sites Misc. Which by standard is 'turned on' in both EZNEC and 4nec2. KNOW it ALL gestimation you find published on websites, NOR the results of any mobile antenna shootout’s using Harbour Freight $9. This has turned out to be a pretty extensive analysis of this antenna. connection with the wire segment, the entry specifies a parallel connection. The use of NEC4D over real soils gives the correct interaction between ground and the antenna. (Exception: If EZNEC is ended by selecting 'EX' from the Main Menu, LAST. Yagis EF0210LT closely spaced to minimise sidelobes but still delivering 18. All antennas in the plots are oriented vertically with respect to the plot The ‘top’ antenna lags in phase (e. zip file, you should find the antenna model in the same archive. This file is located in the EZNEC directory. The demo version is perfectly adequate for even a few dipoles or monopoles, and is free. The following discussion is in three parts: a brief description of the antenna and ground system, a discussion of the measurements and then details of the measurement equipment and techniques. 200 MHz using Moxgen (which will spit out an EZNEC model file!), over real, high accuracy ground (0. Model a coil in any software, and look at current. Even better, there is no need for a tuner or the signal loss that a tuner implies. 0 which is included on the ARRL Antenna Book CD. See the file Readme_EZNEC ARRL. Thus the list shows the antenna gain as -ve dB's relative to the maximum antenna gain which produces an Antenna Pattern for RM and the actual antenna gain value is entered in the 'Radio Operating System ' allocated to the Unit on the. 4nec2 - NEC based antenna modeler and optimizer by Arie Voors. zip Yagi Design prg for 144 MHz and up - WA2TIF ariel15. 0 - sPlan7 demo version Forum. It operates as a normal EZNEC demo program except when a specially "signed" EZNEC description file (included on the Antenna Book CD) is. These models are field verified and are quite accurate. Comes with the ARRL antenna hand book CD. 5dB on 40m and 55. (40) This feedpoint for this loop was at the. Downloadable Files. While it was designed for the 160 meter ham band, it probably worked well in the MW band. C-Pole Antenna for 20m on a non conductive glass fibre fishing rod (beware of conductive carbon fibre material!) Dimensions of C-Pole Antenna for 20m [Design frequency 14. Hello, my mobile setup is composed by a 2 meter vertical whip feeded immediately close to it by an automatic antenna tuner. This page is meant to provide reference material for classes taught by Dr. For example, d_15MQuad. 13 for the site to accept the upload and the file must be less than 300 KB. zip HF wire ant & trans line design v1. 66m; 1/2 lambda = 3. Remember to rename the file extension to. By adding the Handy Yagi, I had no trouble accessing the machine. The Classic Rain-Gutter Loop Antenna – Is it any Good? A simple technical look at an HF horizontal loop of. Read the PDF file. The demo version is perfectly adequate for even a few dipoles or monopoles, and is free. The "Hands-on Antenna Modeling using EZNEC Workshop" Parts I, II and III were held during 3 consecutive club meetings (September 22, October 13 and 27). Modeling coax attached to an. I wrote about this in October. The far end sh. J-pole Antenna Because the J-pole and Zepp are electrically identical in function, and are similar to all other end-fed antennas in problems, pages on J-poles, Zepps, and end-fed verticals overlap. In the process of scaling the antenna to my needs I realized that there several different operating modes (patterns) were possible which might be helpful in some situations. EZNEC will populate a file called LASTZ. Both verticals are identical. 01 is the most current released version. On the bottem yagi he was 56 he switched to the top yagi and the signal jumped to 20db over 9, he then ran the two antennas in phase which made little difference on the single top antenna. I do not claim that any of these antenna designs are original. your PAINT or WORD files for preparing your reports later. Now, run EZNEC for the appropriate frequency, ground conditions, etc. Measurements on the erected antennas with a calibrated RF power meter showed isolations of 46. This file is located in the EZNEC directory. You describe to the program what the antenna physically looks like, and it tells you the pattern, impedance, currents, and derivative information (like front/back ratio,. EZNEC Antenna Design Software by W7EL product reviews by real people like you. At the search of the best Tx antenna for a Low-Latitude location. Two dipoles stacked vertically. The ARRL Antenna Book for Radio Communications is devoted entirely to that pioneering spirit. 9 shows the screen from EZNEC in which the user would specify loads using R-X, or series or parallel R-L-C values. zip file, you should find the antenna model in the same archive. MFJ 259 Antenna Analyzer Calibration A friend of mines was having ton loads of fun adjusting his 4 element array on his car ( 4 Wilson 5000 mobile antennas in a yagi style configuration ). pdf for further details. Moxon Rectangle Generator will show you the dimensions and (optionally) generate an antenna model file for a 50 ohm Moxon Rectangle antenna, given the design frequency and wire size. Also the user @home. Thanks to W7EL and his EZNEC program it is relatively easy to compare different configurations of antennas for their RDF. This antenna WILL NOT show the true SWR in any antenna modelling package unless you are using one which uses the latest NEC4 calculation engine. MMANA-GAL allows users to save the results of Calculations in a special file ( antenna name. Miron for free with a 30 day free trial. Another vendor says to ADD 150 feet of RG-213 to your cable run. EZNEC adjusts line loss with frequency. Ability to create any arbitrary feed system network. 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. YAGio - Yagi Design by W8IO. YAESU STEALTH ANTENNA -- Part 2 Jim Andrews, KH6HTV 15 March 2014 In last month's issue of BARC's BARK, I introduced you to the idea of using a "screw-driver tuned", mobile antenna as a stealthy, home base station vertical antenna. Skip navigation Sign in. As a novice antenna modeller, immediately after the purchase of EZNEC Pro/4, I started to browse through the wealth of antenna information available on the Internet. If the CD is ordered from the web, the program may also be downloaded for no extra charge. This is typically located by default at C:\Program Files\ARRL Antenna Book 22nd Edition. No source code is included or available. Rotate the antenna display and zoom in for details. You may use this collection for your experiments. Available by direct download from the web (~13 MB), and on CD. Download eznec version 5. I thought I would do my own “KC0PET style” analysis. Handy wire table This spreadsheet enables the user to easily create EZNEC wire coordinates from the hexbeam physical dimensions such as wire lengths, end spacing, post diameter, wire. 0 with the 21st Edition. " The Beverage antenna is not the only antenna type that can be installed close to the ground. YAGio - Yagi Design by W8IO. The antenna was verified with EZNEC v6. 0 which has alternative default reference impedance of 75 ohms. Drawing of this Yagis 'Blade' Dipole in 2 mm aluminium sheet metal. The Antenna is fed by two 90 degree phase lines. Key Features: SimSmith is one of the few Smith chart packages which models transmission line losses. The default files are for the entire USA (East, Mid and West). 0 program was used for the simulations. EZNEC Primer Introduction: This document was written to cover the very basic functions of EZNEC. The kernel is fed with the geometry of an antenna design. That should get you a well along the way for your EZNEC entries. EZNEC was brought up as part of the ongoing discussion as it relates to the idea of measuring the effectiveness of NVIS based antennas at different bands, using different antenna configurations, and when located at different heights above the ground. connection with the wire segment, the entry specifies a parallel connection. If the CD is ordered from the web, the program may also be downloaded for no extra charge. Next plug in the Mini60 to the PC USB port, turn on the MIni60 and press “set” once after it initializes until PC link is displayed. •Learn a LOT about basic antennas •Antenna know-how is important! •Antennas that make the most of your lot •Avoid antennas unlikely to work •Evaluate antenna sales pitches •Optimize portable and Field Day antennas •Opens the door to more tools 5/24/2013 Antenna Modeling - Getting Started 4. from BOX to on the AIR! NO NEED for STAKES, HAMMERS, SHOVEL, ROPES, POLES and TWO+ men. 4NEC2 has all of the features of EZNEC+ AutoEZ and can use EZNEC files but the work flow is not easy to follow. Fortunately, Leo (K4KIO) has done all the hard work for us and provided a spreadsheet which takes Hexbeam dimensions as inputs and which produces an output file that can be read directly into EZNEC. But sure as a first idea of how the antenna will perform the simple quarter wave radiator model is good and it's a good way to get used to modeling in EZNEC. exe, EZWdemo40. You describe to the program what the antenna physically looks like, and it tells you the pattern, impedance, currents, and derivative information (like front/back ratio,. Links to Other Relevant Web Sites Misc. SimData will extract the most useful data from that file and place it into a new compact file that can be loaded easily into Excel, Mathcad, or other analysis program. This way I can see all the relays and the additional TLs. Multiple patterns can be superimposed on a single graph for comparison. The file format is a list of gain values for an antenna at 1 ˚ intervals, but shown from a maximum gain of 0dB. Utilize this software to start your design and then use YO, AO, EZNEC, or another electrical design program to refine the electrical design. (In fact, some operating systems won't even show the form where you can specify rebooting. 5dB on 40m and 55. This link is listed in our web site directory since Monday Dec 13 2010, and till today "EZNEC simulation files" has been followed for a total of 443. PDF | One of the greatest limiting factors in locating an AM broadcast tower is the significant amount of acreage occupied by the buried radials. While about 79% of users of EZNEC Demo v. EZNEC will populate a file called LASTZ. •Learn a LOT about basic antennas •Antenna know-how is important! •Antennas that make the most of your lot •Avoid antennas unlikely to work •Evaluate antenna sales pitches •Optimize portable and Field Day antennas •Opens the door to more tools 5/24/2013 Antenna Modeling - Getting Started 4. I am now using Version 3. number of Segments. Both these isolations were very close to the isolations needed based on my tests but fit the Field Day site. By Jari Perkiömäki OH6BG/OG6G. What issues arise when feeding a dipole at one end (the bottom in this case)? This can't be a truly balanced design, can it? Al W6LX. I do not claim that any of these antenna designs are original. Handy wire table This spreadsheet enables the user to easily create EZNEC wire coordinates from the hexbeam physical dimensions such as wire lengths, end spacing, post diameter, wire. 145 and it is a. exe or EZWpro. An STL does not have to be a compromise antenna. The existing HF beam antenna installation just outside the radio room has not been included in the model. Dimensions [metric, in cm] and appearance of 25% / 75% off-center fed H-Pole with ladder line, feedpoint 250cm, lowest spreader 50cm over ground. The J-Pole antenna is a common omni directional antenna used in amateur radio, particularly on the VHF and UHF bands. The slight difference in gain over isotropic from the theoretical is due to the fact that our antenna is not perfectly resonant, and is built of copper which. The antenna was analyzed using EZNEC to determine its basic characteristics and to identify any improvements that could be made. sections which don't apply to. There are two sets of measurements listed below. So in your case all the Ext Conn = Par loads are treated as normal NEC loads in series with anything else on the same segment, and the transformer connecting wire 5 to wire 7 is completely ignored. The antenna is fed in the NE corner with 3 feet of 450 ohm ladder line to a 4:1 balun, through about 65 feet of 50 ohm coax to the radio. EZNEC files for the antennas modeled in the Antenna Options column. I just posted an EzNEC file and a graphic of the predicted SWR curves with a 900Ω terminating resistor for a delta or triangular form of a 3-wire terminated folded dipole. YAGio is similar to LPCAD, it uses keyboard commands instead of a mouse menu. Each element is 2. At Field Day 2012, my project antenna was a version of the Loop Fed Array (LFA) Yagi-Uda antenna inspired by the hard core simulation efforts of Justin Johnson (G0KSC) . before his death. 13 for the site to accept the upload and the file must be less than 300 KB. EZNEC is an antenna analysis program. YAG 310-08H. Advanced Antenna Modeling Book - 584 pages Now available at Amazon in Print format and digital Kindle Download the Chapters Contents, a list of the Accompanied Model files or the Forewords from AC6LA and ON4UN Advanced Modeling Using EZNEC and AutoEZ Modeling Software. This sheet should be copied and exported with any name that you can remember, and must be saved as a text delimit file, so that Eznec can read it. Key points include: This was optimized with NEC4. 160M Linear Loaded sloper from the ARRL antenna book. While about 79% of users of EZNEC Demo v. I use both EZNEC and 4NEC2 for modeling, 4NEC2 is a program that is very powerful and can be downloaded and used for free. How bad does a J-Pole look in an Eznec model? Discussion in ' CB Antennas ' started by Marconi , Feb 14, 2015. It's great to bring together our unique and shared knowledge. -Soft / Antenna Modelling Software. Half of this antenna is 5/8 wave and is a common length for 2m mobile antennas. 0 programs function on Windows XP(SP3)* and later Windows operating systems, 32 or 64 bit. For example 3. All hardware has been upgraded to our machined shorting bars and rugged center element mounts. NVIS / HF Combo Antennas: EZNEC modelled and On the Air tested. I modified a 4BTV a few years ago by adding a relay switched base tuning box a 40m trap and an 80m radiator and cap hat. is EZNEC by Roy Lewallen, W7EL. What is the best wire for portable wire antennas? I have a couple of portable wires that I use but they both suck. No source code is included or available. under the impression SimSmith possibly integration EZNEC or other antenna modeling information files?Hi Skipp, The EZNEC file to use is LastZ. The location on my computer is C:>Users>John>AppData>Local>VirtualStore>Program Files (x86)>EZW. The ICT homepage server is closed. All downloadable files with. exe, EZWDemo. I wil be happy to send a copy of the EZNEC file for a properly designed J pole. To add a new antenna file, drop it in the HamCap\AntBkup\ folder and restart the program. from BOX to on the AIR! NO NEED for STAKES, HAMMERS, SHOVEL, ROPES, POLES and TWO+ men. The Numerical Electromagnetics Code (NEC) is a popular antenna modeling software package for wire and surface antennas. 7dB at the. 2 inch diameter metal mast. Two are particularly noteworthy to me – the only NEC-2 based antenna optimizers for the ham market, and an absolutely gorgeous Direct-X viewer for antenna patterns. 8dB on 40m and 54. This has turned out to be a pretty extensive analysis of this antenna. EZNEC antenna simulation. How-To: Make a Multiband EFHWA for Amateur Ham Radio. There are two sets of measurements listed below. Now, run EZNEC for the appropriate frequency, ground conditions, etc. Software updates are important to your digital safety and cyber security. zip HF wire ant & trans line design v1. * Note: Intel CPU is required on XP and Vista systems but not on Windows 7 and later. Also shows SWR, power, current, voltage, and dB loss numbers. Reorient or relocate the receiving antenna. Origination of J-pole and Zepp Antennas. These models are field verified and are quite accurate. Thanks so much for taking the time to read this. Is there a EZNEC "guru" that can check out the antenna project we have in the ham radio antenna section please?. The EZNEC and AutoEZ models referenced in this article can be downloaded from the link below in zipped format. The antenna was verified with EZNEC v6. Scanned by artmisa using Canon DR2580C +. An antenna file generating spreadsheet which accepts Eznec data at 1 ˚ intervals - suitable for antennas which have gain at zero degrees Azimuth. The triangle is not quite. NEC file along with their basic meanings so that information re-entry in an alternative system is possible. With respect I think you are still thinking of a free space antenna without ground reflections, not a real wolrd situation. ez measurements (prior to 2006) are somewhat different than recently purchased YA-1713. The file format is a list of gain values for an antenna at 1 ˚ intervals, but shown from a maximum gain of 0dB. 8MHz would be 984 divided by 3. come from the United States, it is also popular in Germany and Spain. Notice that:. 0 who is limited to 20 segments, if you have the full version of EZNEC, I highly recommend you to add more segments to make the simulation better. 0 is included with the 20th Edition and EZNEC-ARRL v. 160m/80m Broadband Antenna by K5GP A presentation to CTDXCC September 22, 2008 The 160m/80m broadband antenna design objectives were to have: 160 and 80 m antennas since I had no antennas for these bands, the antennas had to be hidden because of covenant restrictions, open wire feeders would be too visible to be allowed,. The antennas have all fit on an urban lot in Halifax, Nova Scotia. This site is protected against hot linking due to abuse so if you have trouble downloading the Eznec files by direct click contact k7tjr at arrl. They look pretty weird, as can be seen in the following photo: The picture to the right is of a 2m amateur radio band J-pole I built from an EZNEC simulation. About file types supported by EZNEC. to enable modeling of antennas built from telescoping aluminum tubing, a situation that NEC-2 doesn’t handle accurately. As an example start EZNEC and open BYDipole. Leave it there and we will tell SimSmith where to look for it. Fractal antenna EZNEC file. 9-0ubuntu2_i386. COMMUNITY ANTENNA SERVICE, INC. Since a large number of radio-amateurs has shown interest in my antennas after basic characteristics were published in VE7BQH G/T chart, and I am not able to answer numerous e-mail requests for data, I have decided to publish the complete data and make them available for all those willing to build and use my antennas. Broadcast DX Logbooks. EZNEC-ARRL is a special version of EZNEC v. The authors describe a novel method of feeding a. Using the PC Link Feature of the Mini60 Antenna Analyzer. Details from the Sirio website: Source: Sirio assembly pdf file. All hardware has been upgraded to our machined shorting bars and rugged center element mounts. Part I included a basic overview of EZNEC by David K2MUN along with a 40-meter dipole and then he added some drooping ends. Antenna analysis software by Roy Lewallen. This is typically located by default at C:\Program Files\ARRL Antenna Book 22nd Edition. 4) Start AutoEZ (via Excel) and use the "Open Model File" button to load one of the models you unzipped from above. ez files, 4nec2 does not recognize any of the new features added as of EZNEC v. • Feed line and balun can melt when running high power to a non-resonant antenna. Please feel free to compare this antenna with the yagi 7 element, Boom length 11,55m HPSD 7short. Practical application of antenna software assumes understanding of software interface, creating antenna model, experience in applying versatile features of software as scaling, changing element diameters, optimization. If the CD is ordered from the web, the program may also be downloaded for no extra charge. Antenna modeling software produced by Roy Lewallen, W7EL. Plus you get all that gain on receive. the EZNEC box (Open, Save As, Ant Notes, Currents, Src Dat, etc. Type 14 is a table of antenna gain vs. This is post #1346 in a continuing series on Simple Ham Radio Antennas. • Add a Source at the antenna center. Determine the overall height of the complete antenna system; include the supporting structure’s height (tower, slip-up mast, etc. Design, Construction & Evaluation of the 8 Circle Vertical Array for Low Band Antenna drawing from EZNec/4 Pro showing analysis segments and bottom load as. While it was designed for the 160 meter ham band, it probably worked well in the MW band. com in 2 categories. I've actually used this kind of antenna. The following links take you to antenna designs that have caught my interest. the elevation angle and frequency. Here is a small collection of EZNEC files of antennas I have interest in. The features include the ability to place loads in parallel to wire segments, the creation of ideal transformers, and theimplementation of L-networks that use values of inductance and. Roy Lewallen, W7EL, is the creator of the popular antenna-modeling software, EZNEC, and the author of many articles on ham radio-related projects. The MMANA-GAL model of the K1POO antenna at 8m height shows that the antenna has a more complex lobe structure as the frequency increases. 145 and it is a. Unfortunately, simply installing antivirus software isn't enough to protect you and your devices. This antenna can be matched to 50 ohms by using a series inductor. Only at eHam. The first thing you need is a way to look at impedance at the antenna. EZNEC-ARRL v. wire 1 an 3 are the two dipole wires. (In fact, some operating systems won’t even show the form where you can specify rebooting. No source code is included or available. Dallas Lankford, 2/21/09, rev. The VHF/UHF antenna NEC files shown above include the "raw" element lengths. Plane wave excitation. When reading *. In comparison to the total number of users, most PCs are running the OS Windows 7 (SP1) as well as Windows 10. The antenna is fed at one end, usually using a transformer to convert the nominal 450 ohm impedance down to the common 50 ohm impedance of coaxial transmission lines. My only concern is the rather low take off angle of the main lobe. This column discusses one wavelength loops. Believe it or not, all dimensions of this antenna will be controlled with just a few variables. The redesign for 28. 0 with the 21st Edition. The first prize was. 0 or EZNEC v. gif using virtualdub. People who are buying their products normally will buy products which claim bigger numbers for gain. This program implements all or nearly all of the input cards of the complete NEC-4 input deck, thus permitting the use of caternary wires, helices, networks, and other core possibilities. Files: 230-15H. Description. There are two sets of measurements listed below. 66m; 1/2 lambda = 3. Trying to model a antenna, but I am just not that sharp with the program yet. My goal in this article is to point out great design by W2PV as well as possible upgrades and modifications based on his 4 el Yagi design. Modeling coax attached to an. The Hoverman antenna was invented in the 1950s by Doyt Hoverman before the advent of computer modeling, and appears to be a variation for UHF of the much earlier Chireix-Mesny shortwave antenna. I used the program MoxGen2 to gen-erate a model at 21. 0 with the 21st Edition. Latest updates on everything Antenna App Software related. * ‘Insulated-Wire’ and 'LC-trap' loading-types included. The program is based on an algorithm developed by L. All of the files are for antennas set for "mid band" tuning so that the VSWR is nearly equal at the band edges. MACO 8 elements 12,1 meter boom: These pictures/EZNEC diagrams show the result of a MACO 8 element with 12,1m boom. Near field and ground wave analysis. MultiNEC offers full spreadsheet entry, and other features too numerous to mention. YAGio - Yagi Design by W8IO. With cold weather and snow rapidly approaching, antenna work is high on my list. This means a. edu is a platform for academics to share research papers. That file, when run, reveals the 3 voltage maxs, the two current maxs, and the. mkon's SatCalc - SatCalc is a free software which calculates Azimuth and Elevation for geostationary satellites used for television broadcast. Automatic antenna tuner and line loss -- lossy coax can be a good thing The combination of ground loss resistance plus line loss moderates the impedance seen by the antenna tuner allowing it to tune the antenna over a wider frequency range. ) Between 1/4 and 1/2 wavelength is inductive, between 1/2 and 3/4 wavelength capacitive again, etc. To illustrate the way the EZNEC (and the NEC core) works, we'll look at a simple antenna. The software is in a ZIP file. Insert one pair of rivets at a time, and then drive that element in. The antenna was analyzed using EZNEC to determine its basic characteristics and to identify any improvements that could be made. Lazy H Antenna and Distributed-feed Curtain Array. 5 MHz (for non-amateur use), coax fed, without the use of traps or a tuner. 4nec2 is easy to use and comes with a basic 3D editor to help. Delta loop antennas are some of the best performing wire antennas and have the advantage that they can be easily supported via a single elevated mounting point such as…. EZNEC-ARRL v. I am now using Version 3. This function can also be used to calculate and plot the near-fields for antenna arrays. Placing a trap in an antenna element normally requires external calculation of a parallel L and C value, where the inductor also has a series resistance (calculated from the known or estimated coil Q). if you are simply looking to "match" the antenna system to the radio, an SWR meter will do that, but how are you going to adjust the system if there is a greater than 2:1 VSWR?. This means a. As a novice antenna modeller, immediately after the purchase of EZNEC Pro/4, I started to browse through the wealth of antenna information available on the Internet. Rotate the antenna display and zoom in for details. This is the strongest tribander on the market!. 8MHz would be 984 divided by 3. This way I can see all the relays and the additional TLs. Jan 6, 2019- Explore irepair4u's board "Amateur radio antennas, masts" on Pinterest. The EZNEC and AutoEZ models referenced in this article can be downloaded from the link below in zipped format. You describe to the program what the antenna physically looks like, and it tells you the pattern, impedance, currents, and derivative information (like front/back ratio,. Placing a trap in an antenna element normally requires external calculation of a parallel L and C value, where the inductor also has a series resistance (calculated from the known or estimated coil Q). 01 is the most current released version. These files have been contributed by various sources. While a long wire antenna gives a pattern that breaks up into lobes, folding the same. While it was designed for the 160 meter ham band, it probably worked well in the MW band. Communities Served:. 1 Figure 1 shows the basic dimensions of the antenna. YAESU STEALTH ANTENNA -- Part 2 Jim Andrews, KH6HTV 15 March 2014 In last month's issue of BARC's BARK, I introduced you to the idea of using a "screw-driver tuned", mobile antenna as a stealthy, home base station vertical antenna. Plus you get all that gain on receive. Modeling the Lazy H with an element length of 180 feet and element heights of 97 and 194 feet, we have the following patterns: The antenna above produces an overall gain of 14. The antenna uses 300-ohm twin-lead transmission line and is fed at the mid-point of one of the long sides. Turn your walkie talkie into a super SHTF survival radio with HAM-FRS-PMR-GMRS-MURS-MARINE-WEATHER-BUSINESS channels. Using an example model from the EZNEC files with 45degree radials elevated 5 wavelengths, the dipole was compared to the Slim Jim model. Is there a EZNEC "guru" that can check out the antenna project we have in the ham radio antenna section please?. -The 43 foot length is non-resonant on any band (impedance matching is required on all bands) -. ez files, 4nec2 does not recognize any of the new features added as of EZNEC v. Having said all of this, I doubt if this is the best choice for a dual-band 2m/70cm antenna. YAG 312-10H. Useful Info (uncategorized) Amateur radio Android smartphone apps by KG9E CW Koch Morse code trainer, straight key and iambic paddle practice oscillators, QTH grid square locator, DTMF keypad. Disclamer: The author is not responsible for any contents linked or referred to from his pages. " The Beverage antenna is not the only antenna type that can be installed close to the ground. Fortunately, Leo (K4KIO) has done all the hard work for us and provided a spreadsheet which takes Hexbeam dimensions as inputs and which produces an output file that can be read directly into EZNEC. not easy to simulate with EZNEC 5+, as different materials are used in the design. come from the United States, it is also popular in Germany and Spain. My poor knowledge of antenna systems think that the ATU, choosing the. It is a DOS based program so just decompress and place in a convenient folder. net is a Web site dedicated to ham radio (amateur radio). Cebik, W4RNL (SK) ne of the most popular implementations of NEC, EZNEC, introduced in May, 2007, a new version (5) with a number of facilities that may be new to NEC users. Hi Folks: I'm looking for a coaxial cable antenna simulator, that can be able to simulate collinear antennas made with coaxial cable such as RG58, RG213 etc. K1POO 4 Band Off Centre Fed Dipole (40-20-15-10m ) MMANA-GAL K1POO Antenna model's 3D far field results The antenna at 8m height above real ground 5mS/m and dielectric 13, SWR ref 200Ω.