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. There one selects only the working frequency and all relevant data, related to a 22 mm pipe as condenser, is indicated. Wa2whv amateur radio, beam antenna and dipole calculator. If you have no particular preference within a given ham radio band, then simply enter its center frequency i. Their operational area is not limited to the short wave bands. The measurements below are for building a simple dipole antenna. Free radio frequency software, antenna design and calculators. Hf dipole antenna this antenna software will help you design a simple wire dipole antennas for 1 30 mhz. The ewe antenna was compared with an ab switch with the terminated tilted folded dipole shortwave antenna, and compared favorably. A very basic program for calculating the length of each leg of a 12 wave wire dipole antenna. Download the latest full version of antenna, and take it for a free 16day test drive. 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. This calculator can be used to design a quarter wave ground plane antenna, with radials. By using relays, a single feed line could be switched to 1 of 3 elements or to all for an omni position.
It has two electric poles charged positive and negative. Transmitters provide oscillating electrical energy on to the antenna which radiates them as. Antenna, ve3sqb ham radio antenna design software programs. This app does nothing more than the standard 468freq mhz type calculations. Wire antenna calculator amateur radio station ws6x. Antenna calculator and design software electroschematics. Download antenna systems calculator a command line application that can be used by radio antenna designers. In attempts however always it resulted that mono volume dipoles were better. Microvert antenna was developed by jurgen schafer, dl7pe. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun. 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.
In terms of its performance, the microstrip patch antennas can provide dual. Yagi calculator yagi calculator, yagi calculator is a program to assist with the design of long yagi antennas. 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. The microvert antenna, designed by jurgen schafer, dl7pe, is a short, base loaded antenna that uses the coax shield as a counterpoise. Additional benefits of patch antennas is that they are easily fabricated.
My new home made microvert antenna is on the roof and ready to testing. Quite a few people who use wspr use the tiny microvert antenna whose design seems to have originated in germany. Dec 21, 2012 dl7pe microvert antenna at december 21, 2012. Eh antenna this is a picture of my eh star antenna for 80 meters. First the pocket calculator is used with the dos program mitspule. Ik heb zo een microvert antenne naar het ontwerp van dl7pe. Microstrip patch antenna calculator electrical engineering.
Here is a simple antenna calculator for two popular forms of ham radio hf wire antennas. The formula for calculating the approximate length of a quarterwave vertical antenna is. I wonder who reading this post has used a microvert antenna and. Download hf dipole calculator 12 wave wire dipole antenna. This antenna beams into three quadrants without the use of a rotator. 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. The other antenna was made by antenna specialist who are still in business and may still produce the super scanner.
John simpson, kg4zow download source code for this program moxon algorithm and diagram are from awg conversion algorithm from. Helical antenna calculator for android apk download. This does not take into consideration the type or size of horizontal reflectors, of even if there is a need for them. All you need to do is enter the desired resonant center frequency in the form below, then click calculate. 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. The microvert by jurgen schafer, dl7pe, based on foreign sources was. Design and adjustement is easy, as with the capacitor you can tune the resonance by some mhz with no effort.
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. Microvert antennas the microvert antenna, designed by jurgen schafer, dl7pe, is a short, base loaded antenna that uses the coax shield as a counterpoise. The following program will calculate the lengths needed to construct several popular wire antennas. Lfmf short vertical antenna properties calculator the easiest antenna one could build for lf and mf operation. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. It uses the coax intentionally as a counterpoise with an rf choke the right distance down the coax. I had always dismissed and therefore had not continued to consider the reports on strongly shortened, capacitive antennas micro vert as qrp plaything. 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. Ve3sqb antennas jpole, quad, dipole, discone, yagi antenna programs. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. Feeding the antenna can be done at the director or at the reflector. 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. There are usually four radials, three being a minimum, but you could use up to six. The correct lengths for the various models will be displayed in the chart. It has two cylinders made from aluminum flashing 30 12 long, wrapped around 2 2. It was written for dos many years ago and ported to.
Microvert antenna radio amateur 061998 amateur radio archive. For example, this diminutive antenna is only about 30cms long on 28mhz. 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. Result the antenna is a good variant for all, who cannot errect uncurtailed antennas. Ve3sqbantenna programs for advanced quads, dipole,skyhopper, discones and more.
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 fm antenna calculator is an online application designed to assist in fm antenna systems planning. The coax jumpers made the other 2 unactive elements. The resource is currently listed in in a single category. Works either in standard and metric units, and let you choose on material, and loopread more.
Spacing is the distance from the boom to the gammamatch. The photo on the right is the antenna version by peter, dl2fi, which is named cudgel of berlin. It is the most effective antenna when compared to other ground plane antennas. The calculator allows computation of all variables, including the eirp. It has outperformed my other antennas dipole made from two mobile whip antennas up 20 feet and a vertical wo radials. This will calculate the length of a 1 wavelength loop. 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. This calculator can be used to design a slim jim or a j pole antenna. Top 4 download periodically updates software information of antenna calculator full versions from the publishers, but some information may be slightly outofdate using warez version, crack, warez passwords, patches, serial numbers, registration codes, key generator, pirate key, keymaker or keygen for antenna calculator license key is illegal. The microvert is based on a design developed by jurgen schafer dl7pe. Wa2whv antenna beam and dipole calculator linkswb6tpu rf and highspeed interconnect site good antenna analysis programs.
Oct 26, 2014 quite a few people who use wspr use the tiny microvert antenna whose design seems to have originated in germany. Another advantage of the microstrip patch antenna is the low cost involved and relative ease in manufacturing. Dipole antenna length calculator dipoles antennas are easy to build and can be very effective when placed half a wavelenth or more above ground. Unfortunately, they are physically competing since the smaller the antenna compared to the wavelength, the smaller the radiation resistance.
Antennas are equipped with radio transmitters and receivers. Transmitters provide oscillating electrical energy on to the antenna which radiates them as electromagnetic waves. 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. 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. It uses the broad principles developed by dl6wu and printed originally in the german radio magazine vhf communications.
Quad antenna javascript calculator for cb and amateur radio. Extremely small and highly efficient these two properties of a fictious super antenna sound very attractive, not only to us radio amateurs. The t2fd averaged about 4 db lower noise figure than the ewe antenna across 5. Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters. Microvert antenna for 80 meters resource detail the. So far i had seen the micro vert only from the distance and placed myself it the question about the dimensions.
The main category is homemade projects for 80 meter antennas that is about antenna projects for 80 meters band. Pasternacks microstrip patch antenna calculator determines the length and width in millimeters of a rectangular patch antenna. It uses a matching system similar to jpole antenna. Calculate the frequency length of antennas please enter one value only and calculate the result. This calculator will calculate the radiation resistance of a marconi antenna which is short compared to the wavelength. Formulas are taken from this excellent page by on7yd. As built, the microvert is a short, baseloaded antenna that uses the coax shield as a counterpoise. An antenna analyzer facilitates the alignment very much, but its however not a condition. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. Index of popular ham linkstools worldwidedx radio forum. The microvert antenna, designed by jurgen schafer, dl7pe, is a short, base loaded antenna that. Yagi uda antenna calculator you may want to combine it with a folded dipole. Antenna is an electrical device used to convert electrical power in to radio waves and vice versa. It is usually not recommended because of the lower efficiency, compared to an invertedl or a marconi type antenna.