Dec 29, 2015 a very basic program for calculating the length of each leg of a 12 wave wire dipole antenna. This calculator provides quick estimation of antenna size required for a given gain and frequency. Jhdhv4 horizontal half wave dual dipole band iii flat panel antenna. Jampro jfwd band ii folded dipole antenna 305broadcast. This software can not only be used to design but also to find out antenna gain, stacking distance, and standing wave ratio swr. The results are conveniently displayed in inches, centimeters, feet and meters. The simplicity of the jlcp design give low power stations the flexibility needed to meet their individual requirements. The alan dick jampro model jfwd is a broadband folded dipole fm broadcast antenna that requires no tuning from 88108 mhz and has an n type input connector. This calculator will help you to calculate the different wavelength of antennas based on the frequency. 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. The jampro jmpc antenna is the medium power version of the penetrator antenna, which has become an industry standard for quality and performance. Cem or electromagnetics and can be obtained from a local sales.
The slim jim, designed by the late fred judd, g2bcx, can be a great portable roll up antenna, if made out of 300. Using this software, you can design and build your own yagi antenna. Also, the antenna design includes stainless steel with a brass inner conductor. Jampro antennasrf systems, inc digital broadcasting. Classroom licenses are available at a low cost for institutions giving courses in or relating to antennas i. Antenna systems calculator is a simple to use piece of software that you can run from the command line and perform different antenna calculations with. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun. When you want more than just a tv broadcast antenna, jampro delivers. The fm antenna calculator is an online application designed to assist in fm antenna systems planning. Long yagis are commonly used from the 144mhz amateur band to the 2. It uses a matching system similar to jpole antenna. The te11 cutoff frequency should be lower than 2412 mhz and the tm01 cutoff should be higher than 2462 mhz.
It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength. Vertical dipole fm broadcast antenna jampro antennas inc. Antenna magus classroom is a special version limited to a few useful and practical antennas that was created for teaching about antennas in a classroom environment. Jampro jlcp low power circular sidemount 305broadcast. Clicking on the links below will open another tab on your web browser. Yagi uda antenna calculator you may want to combine it with a folded dipole. The jampro vertical dipole fm broadcast antenna provides a balun fed vertical dipole. This does not take into consideration the type or size of horizontal reflectors, of even if there is a need for them. Learn about working at jampro antennas, inc join linkedin today for free. It is through this knowledge and use of the aerial that the reader and user can discover for themselves the many features the eh antenna has over conventional aerials.
The basic configuration of a small magnetic loop consists of the main loop, coupling loop, and capacitor fixed or variable. Download hf dipole calculator 12 wave wire dipole antenna. The first benefit you get from using a good antenna design program is a much better understanding of all the parameters and compromises that go into the design of an antenna system. If the antenna is to be placed outside, do not use brass. The jampro calculators and converters page is back again. Rated at 10 kw maximum input, each bay consists of a penetrator style radiating element with a 1 58 inch shunt feed line. The worlds leading manufacturer of fmtv broadcast antennas, combiners and filters. All you need to do is enter the desired resonant center frequency in the form below, then click calculate. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. Alan dick jampro jfwd broadband folded dipole antenna fm. 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. Jhdlv2 horizontal dual dipole band 1 flat panel antenna. The jampro jlcp is a low power antenna design specifically for omnidirectional low power applications such as lpfm, translator and booster stations.
Many consider antenna modeling programs to be overkill for most if not all ham radio antenna experimenters needs. The antenna calculator is a very simple and easy piece of software. It is the most effective antenna when compared to other ground plane antennas. Jampro juhd broadband uhf panel antenna the juhd broadband uhf panel antenna is designed as either a sidemount or a topmount antenna. Many configurations exist when constructing the main loop and secondary loop. Like all jampro products, the antenna is completely assembled, tuned and tested before shipping, and comes with a twoyear warranty. The jampro jlcp is a low power antenna designed specifically for omnidirectional low power applications such as lpfm, translator and booster stations. This calculator can be used to design a slim jim or a j pole antenna. The correct lengths for the various models will be displayed in the chart. The eh antenna concept is covered by three 3 patents. Aug 02, 2017 vhfuhf quad antenna iw5edi simone hamradio vhfuhf quad antenna the information in this article has come from many amateur sources, the most notable was from wa6tey sk 1985 ray frost, who was a pioneer of vhf quad designs and one of the best southern california transmitter hunters of the 1980s. The jfwd folded dipole antenna handles rf power up to 250 watts and is sealed for long term durability in all weather conditions.
Antenna design calculators category is a curation of 83 web resources on, magnetic loop excel sheet, parallel square conductor transmission line calculator, analysis of antenna mast strength and bending stress. The following program will calculate the lengths needed to construct several popular wire antennas. This calculator is designed to give the vertical length height of a particular antenna, for the frequency and wavelength chosen. This app does nothing more than the standard 468freq mhz type calculations. The simplicity of the jlcp helix design gives low power stations the flexibility needed to meet their i. Mar 16, 2020 yagi calculator is a windows program that also runs well on linux, ubuntu 8. Calculatorsconverters provided by jampro antennas inc. Also a power divider, and heliax coaxial feed lines.
The distance between one point to another adjacent point in a wave is known as the wavelength. Jampro has shipped tv broadband slot antennas for 50 years. The measurements below are for building a simple dipole antenna. Antenna calculator software free download antenna calculator top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. It has two electric poles charged positive and negative. Combining two tv antennas for better hdtv reception duration. The antenna calculator above uses this formula as a starting point to calculate wire lengths for the dipole. Stainless steel and hot dipped galvanized steel construction yields long life. This formula to obtain the length of a halfwave dipole antenna will give a good ballpark value to start with. Please just close the tab to return to the main jampro website. Yagi calculator is a free antenna design and analysis software for windows. 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.
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