Spacing is the distance from the boom to the gammamatch. Antenna calculator and design software electroschematics. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. Calculate the frequency length of antennas please enter one value only and calculate the result. Ve3sqbantenna programs for advanced quads, dipole,skyhopper, discones and more. I wonder who reading this post has used a microvert antenna and. This will calculate the length of a 1 wavelength loop.
Here is a simple antenna calculator for two popular forms of ham radio hf wire antennas. Their operational area is not limited to the short wave bands. The microvert is simply the recreation of the tunable output circuit of that little 40meter transmitter, enhanced in such a way that it radiates as much rf as possible. So far i had seen the micro vert only from the distance and placed myself it the question about the dimensions. A quarterwavelength antenna is easy and inexpensive to build and can be an effective antenna with a low angle of radiation that is, power is radiated out, not up.
This link is listed in our web site directory since tuesday apr 20 2010, and till today microvert antennas by dl7pe has been followed for a total of 1710 times. Dec 21, 2012 dl7pe microvert antenna at december 21, 2012. The calculator allows computation of all variables, including the eirp. It uses the broad principles developed by dl6wu and printed originally in the german radio magazine vhf communications. Ve3sqb antennas jpole, quad, dipole, discone, yagi antenna programs. Lfmf short vertical antenna properties calculator the easiest antenna one could build for lf and mf operation. It has outperformed my other antennas dipole made from two mobile whip antennas up 20 feet and a vertical wo radials. This calculator can be used to design a quarter wave ground plane antenna, with radials. Additional benefits of patch antennas is that they are easily fabricated.
It has two electric poles charged positive and negative. All you need to do is enter the desired resonant center frequency in the form below, then click calculate. 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. Wa2whv antenna beam and dipole calculator linkswb6tpu rf and highspeed interconnect site good antenna analysis programs. It is the most effective antenna when compared to other ground plane antennas. The measurements below are for building a simple dipole antenna. 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. Yagi calculator yagi calculator, yagi calculator is a program to assist with the design of long yagi antennas. The ewe antenna was compared with an ab switch with the terminated tilted folded dipole shortwave antenna, and compared favorably. Download the latest full version of antenna, and take it for a free 16day test drive. The t2fd averaged about 4 db lower noise figure than the ewe antenna across 5. The microvert antenna, designed by jurgen schafer, dl7pe, is a short, base loaded antenna that. The other antenna was made by antenna specialist who are still in business and may still produce the super scanner. In terms of its performance, the microstrip patch antennas can provide dual.
There one selects only the working frequency and all relevant data, related to a 22 mm pipe as condenser, is indicated. Design and adjustement is easy, as with the capacitor you can tune the resonance by some mhz with no effort. The microvert by jurgen schafer, dl7pe, based on foreign sources was. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board.
My new home made microvert antenna is on the roof and ready to testing. 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 antennas that are mounted over a perfect or lossy ground. While the microvert doesnt perform as well as a dipole antenna, it can get you on the air where large antennas are not suitable or allowed. Microvert antenna for 80 meters resource detail the. Unfortunately, they are physically competing since the smaller the antenna compared to the wavelength, the smaller the radiation resistance. I had always dismissed and therefore had not continued to consider the reports on strongly shortened, capacitive antennas micro vert as qrp plaything. Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters.
Transmitters provide oscillating electrical energy on to the antenna which radiates them as. It has two cylinders made from aluminum flashing 30 12 long, wrapped around 2 2. The following program will calculate the lengths needed to construct several popular wire antennas. It uses a matching system similar to jpole antenna. The first test was when i checked into the weekly ares net statewide ares ne for south texas, usually have to check in from an alternate net control due to a weak signal. Antenna, ve3sqb ham radio antenna design software programs. Dipole antenna length calculator dipoles antennas are easy to build and can be very effective when placed half a wavelenth or more above ground. The formula for calculating the approximate length of a quarterwave vertical antenna is. Doug vk3um was a friend from our days at unley high school during the mid 1950s, a common interest was that of radio and electronics leading to our introduction to ham radio through the 288mhz band now no longer part of australian allocations. It was written for dos many years ago and ported to. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun.
John simpson, kg4zow download source code for this program moxon algorithm and diagram are from awg conversion algorithm from. Eh antenna this is a picture of my eh star antenna for 80 meters. This antenna beams into three quadrants without the use of a rotator. This calculator will calculate the radiation resistance of a marconi antenna which is short compared to the wavelength. Apr 23, 2014 download helical antenna calculator apk 4. Download hf dipole calculator 12 wave wire dipole antenna. It was written for dos many years ago and ported to win32. The slim jim, designed by the late fred judd, g2bcx, can be a great portable roll up antenna, if made out of 300. Wire antenna calculator amateur radio station ws6x. It uses the coax intentionally as a counterpoise with an rf choke the right distance down the coax. An antenna analyzer facilitates the alignment very much, but its however not a condition. Index of popular ham linkstools worldwidedx radio forum. Free radio frequency software, antenna design and calculators. Quite a few people who use wspr use the tiny microvert antenna whose design seems to have originated in germany.
Effective jan 2016 i will be changing web hosting providers and as such a complete redesign of my website using a content management systemcms to better design and host the site. In attempts however always it resulted that mono volume dipoles were better. The coax jumpers made the other 2 unactive elements. Formulas are taken from this excellent page by on7yd. The fm antenna calculator is an online application designed to assist in fm antenna systems planning. This app does nothing more than the standard 468freq mhz type calculations. Works either in standard and metric units, and let you choose on material, and loopread more. Microvert antenna radio amateur 061998 amateur radio archive. Wa2whv amateur radio, beam antenna and dipole calculator. The correct lengths for the various models will be displayed in the chart.
Helical antenna calculator for android apk download. If you have no particular preference within a given ham radio band, then simply enter its center frequency i. Result the antenna is a good variant for all, who cannot errect uncurtailed antennas. It is usually not recommended because of the lower efficiency, compared to an invertedl or a marconi type antenna. This calculator can be used to design a slim jim or a j pole antenna. Hf dipole antenna this antenna software will help you design a simple wire dipole antennas for 1 30 mhz. Microstrip patch antennas gains an advantage over other microwave antennas in the area of portability as these antennas are lighter, and dont take much space. There are usually four radials, three being a minimum, but you could use up to six. The microvert antenna, designed by jurgen schafer, dl7pe, is a short, base loaded antenna that uses the coax shield as a counterpoise. Firefox morse addon fcc radio or device documentation satellite info if anyone has a suggestion for threads that can be added to this, please post below, and i will update the list from time to time. As built, the microvert is a short, baseloaded antenna that uses the coax shield as a counterpoise.
Microvert antennas the microvert antenna, designed by jurgen schafer, dl7pe, is a short, base loaded antenna that uses the coax shield as a counterpoise. Microstrip patch antenna calculator electrical engineering. Microvert antenna was developed by jurgen schafer, dl7pe. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. The resource is currently listed in in a single category. Pasternacks microstrip patch antenna calculator determines the length and width in millimeters of a rectangular patch antenna. Feeding the antenna can be done at the director or at the reflector. For example, this diminutive antenna is only about 30cms long on 28mhz. Download antenna systems calculator a command line application that can be used by radio antenna designers. By using relays, a single feed line could be switched to 1 of 3 elements or to all for an omni position. The microvert is based on a design developed by jurgen schafer dl7pe. This calculator is designed to give the vertical length height of a particular antenna, for the frequency and wavelength chosen. Transmitters provide oscillating electrical energy on to the antenna which radiates them as electromagnetic waves. This link is listed in our web site directory since tuesday apr 20 2010, and till today microvert antenna for 80 meters has been followed for a total of 747 times.
Of course, this antenna is probably not the right choice for the dxhunter, but a very cheap, small and easy to build antenna and ideal for travelling and portable operation. The main category is homemade projects for 80 meter antennas that is about antenna projects for 80 meters band. Ik heb zo een microvert antenne naar het ontwerp van dl7pe. Yagi uda antenna calculator you may want to combine it with a folded dipole. First the pocket calculator is used with the dos program mitspule.
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