446 mhz antenna calculator software

Antennas are equipped with radio transmitters and receivers. Click on calculate and the opposite value will be displayed in feet and inches or frequency in megahertz mhz. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. The plus cost 50% more than the 888s but does it perform 50% better. Mobile online installation calculations geodata the program rmpath. The cheapest one is the polish made dipol atk5 which has 7. The measurements below are for building a simple dipole antenna. Enter the length of the antenna conductor, which is the distance around the loop. Directional antennas are typically yagi type, nondirectional are dipole type. While not as good as the first, it still shows promise and anybody could build it. Pmr446 is a type of radio that is free usable in europe where it is using 8 channels in a 6,25 khz raster in the 446 mhz band using a permanently attached antenna.

Transmitters provide oscillating electrical energy on to the antenna which radiates them as electromagnetic waves. Homebrew quagi antenna for the pmr band 446 mhz antenna from a few bucks date of the last modification. The formula and basics of yagi antenna calculator are also explained with example. A quad antenna is typically a single wire formed into a square. Dipole inverted vee antenna calculator fists cw club. Long yagi are commonly used from the 144mhz amateur band to the 2. Here is a simple antenna calculator for two popular forms of ham radio hf wire antennas. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. Antenna design calculators category is a curation of 83 web resources on, parallel square conductor transmission line calculator, analysis of antenna mast strength and bending stress, full wave loop antenna calculator. Enter the operating frequency use your mouse to clear the window then enter your frequency freq mhz. This calculator can be used to design a quarter wave ground plane antenna, with radials.

Changed antenna temperature tool nomenclature to be as per rainer bertelsmeiers effective noise temperatures of 4yagiarrays for 432 mhz eme in dubus 487. Program good for 1 500 mhz, although intended for mf hf useage. Enter the desired frequency then click on calculate and the optimum values for that combination will be displayed in feet, inches and fractions of. Yagi calculator is a windows program that also runs well on linux, ubuntu 8. Dipole antenna length calculator dipoles antennas are easy to build and can be very effective when placed half a wavelenth or more above ground. Use this calculator as a tool to understand and planning of your yagi antenna. The calculators for other antenna types such as parabolic,horn,dipole and patch are also mentioned. The dl6wu yagi is highly regarded as being easy to build with repeatable results. Here is my first reliable and still working yagi antenna for my radios pmr446, 14 elements, 2. Antenna is an electrical device used to convert electrical power in to radio waves and vice versa. Long yagis are commonly used from the 144mhz amateur band to the 2. Radio mobile rf propagation simulation software lpd. For any frequency, you can calculate the resonant wavelength by dividing 3108 or 300000000 by the frequency in hertz i.

Fitting the requirements of directionality, high gain, and portability. 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. Choose the units of measurement, english or metric. The quagi antenna was designed by wayne overbeck, n6nb, amd is a highgain antenna combining the highimpedance and easy matching characteristics of the quad antenna array and the high gain and easeofconstruction of the classic yagiuda parasitic beam array. Radio mobile is propagation simulation software free to the amateurradio community. This software can not only be used to design but also to find out antenna gain, stacking distance, and standing wave ratio swr to design the antenna, you need to go to task design yagi menu. Coax center conductor attaches to the long section feed point. Antarray the program antarray allows to study the effects of the number, distance and phase shift of several coupled antennas on the radiation pattern. Antenna, ve3sqb ham radio antenna design software programs. Mobile antenna 146 446 mhz dualband wideband txrx 140160 435465 mhz mobile antenna, black, gain. Yagi uda antenna calculator you may want to combine it with a folded dipole. Is this really what a mobile uhf446 antenna looks like. Building an 868915 mhz colinear antenna for lora ttn gateway. Works either in standard and metric units, and let you choose on material, and loop shape, as circular, square or.

Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters. The reception pattern of a directional type antenna is shown below, left. Lpd and pmr446 compared in this analysis the performance of pmr446 446 mhz and lpd 433 mhz is compared to demonstrate the performance to its potential users. In commercial application lmr600 minimum lmr1200 at best. An interesting application note about wlan discones 2. If you have no particular preference within a given ham radio band, then simply enter its center frequency i.

Added a number of other possible element material types such as 6063t832, and 6061t6 aluminium alloys as per common usage. Antenna calculator and design software electroschematics. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun. This calculator can be used to design a slim jim or a j pole antenna. Most radios are equipped with 38 ctcss tones, sometimes called subchannels.

Yagi calculator is a free antenna design and analysis software for windows. Antenna design freeware 1d and 2d arrays from mei software. This article describes an eight element quagi design with quad type driven element1. Vhf and uhf antenna systems 181 chapter 18 a yagi can be easily designed to cover any 2. Lets see some antenna calculator and antenna design software that will help you. The pattern for an omnidirectional antenna is shown on the right. The vertical element and radials are 332 or 116inch brass welding rod. This app does nothing more than the standard 468freq mhz type calculations.

The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a. To be combined with a yagi uda antenna or used as is. The slim jim, designed by the late fred judd, g2bcx, can be a great portable roll up antenna, if made out of 300. The second antenna is even simpler, consisting of only two bowed elements. In a quagi the first two elements of the antenna are quads, the directors are all simple straight wire elements, as in the traditional udayagi design.

This page covers 3 element yagi antenna calculator. In this analysis the performance of pmr446 446 mhz and lpd 433 mhz is. Antenna designing software instructions to build a beam for 40 m band, uhfshf antenna design, antenna design article collection, yagi design for 50 mhz and up, yagi design program for 144 mhz and up. This method of construction can be used on most uhf through low microwave yagis, and is especially useful for the 33, 23 and cm bands. That is about 6 mhz above the 70cm amateur radio band. Online calculator hb9cv antenna calculator changpuak. This calculator is designed to give the critical information of a particular beam antenna, in this case a three element yagi, for the frequency chosen. This calculator is designed to give the vertical length height of a particular whip type antenna, or the frequency of it. Yagi antenna calculator, yagi antenna dimensions, learn to build a yagi antenna, guide to yagi antennas. Download yagi lightweight program that provides users with a simple means of calculating various parameters pertaining to your yagiuda antenna. These antennas were made with this process, and tested on this backyard antenna range. I like to use the basic dl6wu wideband yagi designs whenever possible.

This antenna was derived from the arrl handbook information on quagis and yagis. This page can be used to calculate the element and radial lengths for a 14 wave. For advanced design look at the picture on the page for eznec software to get an idea of the shape you should be looking for. Helical antennas invented by john kraus give a circular polarized wave. I homemade this antenna spending 0, recycling two old vhf tv antennas and a broken clotheshorse and a piece of wood. Using this software, you can design and build your own yagi antenna.

There are usually four radials, three being a minimum, but you could use up to six. In this menu, you need to submit values of multiple. Llc associates program, an affiliate advertising program designed to provide a. Download hf dipole calculator 12 wave wire dipole antenna. It is by no means a replacement for antenna design software such as eznec, but should give a clue how the antenna will perform. Pmr446 stands for personal mobile radio and is a license free radio in the 446 mhz uhf band. By changing the elements to square, the antenna scales from 500 mhz to 1 mhz and is easy to build.

Yagi calculator is a program build to produces dimensions for a dl6wu style long yagi antenna. Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelength. Input the frequency in mhz where you hang out at the most. A site masters sa2500ex would be necessary, or use 2nec4. The name quagi is a simple contraction of quadyagi. Antenna calculator length of the dipole antenna calculation. Hf dipole antenna this antenna software will help you design a simple wire dipole antennas for 1 30 mhz. Enter one only one value, the desired frequency or the antenna length in any length field. Free radio frequency software, antenna design and calculators.