70cm yagi calculator download

The recent addition of an elecraft xv222 transverter and homebrew yagi completes my coverage up to 70cm. Long yagis are commonly used from the 144mhz amateur band to the 2. Yagi calculator this is where you input the center frequency in megahertz. Printed or written template with antenna dimensions. Yagi uda antenna calculator you may want to combine it with a folded dipole. Ive taken what i learned from the gmrs continue reading homebrew 5 element vhf yagi. Since my article on simple wideband yagis appeared in september ar i have had a number of people contact me advising that it would be better to use the grey electrical conduit rather than the orange version i did. Build a 4 elements yagi dw1zws panda antenna original. Typical tubing diameters for the 2m and 70cm bands are from 0. Yagi calculator is a free antenna design and analysis software for windows. Virtually no ham antenna article today lists all the materials, tools and speci. Yagi with 5 elements on 2 m, 8 elements on 70cm and one feedpoint. One wooden square, 1 cm per side, 50 cm long 70 cm for the 20 element antenna. This is the four line lcd version, currently using internal calculations to track the moon.

Dl6wu style yagis for vhfuhf updated 7 october 2019. To assist software writers i have created a dll that will work with delphi and c compilers under windows and linux to do all the moon calculations for amateurs. The following text contains some basic yagi design concepts aimed toward. Cheap yagi for 70 cm build this cheap and easy satellite. Download yagi calculator this is an application designed to generate data for the construction of long yagi antennas for vhf and uhf use in a. If you take the vk3um eme calculator and take a 4 yagi group with a gain of 20 dbd and a preamp of 0. I have seen many antenna designs here but none met my needs. A unique method of fastening and isolating the elements to the boom is detailed and presented to the builder. This program calculates the focal length and x, y coordinates for a parabola of any diameter and depth. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. Yagi calculator is a program build to produces dimensions for a dl6wu style long yagi antenna. This is a very low number for a 4 yagi system on 70 cm.

Long yagi are commonly used from the 144mhz amateur band to the 2. It produces maximum gain but requires tweaking for the number of elements. The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a. A few contacts with the uk showed that the antenna is working great. A computer optimized uhf 70 cm yagi antenna for radioamateurs, transmitting and receiving on 420 mc 430 mc 440 mhz to 450 mc with this beam in high gain. This is an excel spreadsheet template to design dl6wu yagi antennas based.

Printing time for this project is quite extensive but you will not regret either the filament used or the time spent printing for one moment. Cheap yagi for 70 cm build this cheap and easy satellite downlink antenna by richard f. Simple wideband yagis for 2m and 70cm errata and extra pictures. The calculators for other antenna types such as parabolic,horn,dipole and patch are also mentioned. Antenna, ve3sqb ham radio antenna design software programs. The boom, plastic inserts are all from a broken tv antenna.

I started this project after building my first mono band moxon for 15 mtr band. This program uses different formulae for 2, 3 or multielement designs and includes element tapering verticals covers all the common types with a coil calculator built in for the antennas that require them. To be combined with a yagi uda antenna or used as is. It is quite possible, that other calculators deliver slightly different results. Yagi calculator download it performs the calculations needed to. The cubical quad antenna calculator for citizens band cb radio and amateur radio communications to calculate the spacing between the reflector and driven elements and directors. The dl6wu yagi is highly regarded as being easy to build with repeatable results.

The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a useful pattern. Yagi calculator is a windows program that also runs well on linux, ubuntu 8. The yagi is optimized for the cwssbparts of the bands, but usuable for the full bands. For the complete 2mdata see the 5elementultralightyagi. Low profile 6 meter cubical quad nc4fb amateur radio. The yagiuda antenna is the most recognized antenna. 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. Camden county amateur radio society georgia ccars inc. If you decide you really need a yagi with more elements, here are the lengths of them. No physical connection between the 2m and 70cm elements. Antenna for 70 cm 432440 mhz category is a curation of 55 web resources on, experimental patch antenna, 432 mhz 5 elements yagi, dg7ybn gtv 702m. The boom is a piece of conduit with holes drilled in the appropriate.

The gain of an an antenna with parasitic elements varies with the spacing and tuning of the elements, and thus for any given spacing there is a. A 400wacgenerator or 2x100ah lead acid batteries gives the power for several hours of. Now its time to step it up just a little bit and fabricate a bigger antenna. This page shows a 7 element, yagi beam antenna built out of spare parts for the 70 cm band. Yagis ohne weitere anderungen elemen te hinzuzufugen oder wegzulassen. Yagi calculator will help any radio enthusiast to design and build hisher own dl6wu yagis for vhfuhf, meeting the criteria developed from. The below image is the measurements of the antenna.

It is not hoisted yet, still to do, design and complete the. A simple 4 element 2 meter yagi made from coathangers or other common materials by pete rimmel n8pr. The end project is a professional looking antenna that looks and works well. The separation will remain the same for all the elements and the lengths of these extra directors will all be the same as the 1st director. If you want to put this thing outdoors, do not use brass, as it. I elementsthe yagi antennas basic design is a resonant fed dipole the fed dipole. 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. Even though the publication of the first works dl6wu yagi been more than 30 years, his approach yagi antenna. Although the gamma match is originally for 3 elements yagi antenna uhf this will also work with this 4 elements uhf yagi antenna. An application designed to generate data for the construction of long yagi antennas for vhf and uhf use. Also, it makes an excellent school, club or boy scout project. The mast has a height of 8m and can be erected easily without any helpers. To scale this antenna for any other vhfuhf frequency, read the arrl article. They can be made using various materials and in varous sizes.

The spacing are the same between the elements and when built successfully it will. A simple 4 element 2 meter yagi made from coathangers or. Tommy gober built this yagiuda antenna that has some handy design features. In this menu, you need to submit values of multiple. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. The formula and basics of yagi antenna calculator are also explained with example. Calculator 3element yagi maple leaf communications. To build the 4 elements yagi you may follow the direction for building the 3 elements yagi except that you will add an additional parasitic element director which is about 5% shorter than the last element of the 3 elements yagi. I figured the gain, frontback isolation, impedance, and other stuff that takes a rocket scientist to figure out, or at least someone smarter than me, hihi with yagimax 2. Build your own three element yagi the calculations for these antennas are from n3dnos antenna calculator. Using this software, you can design and build your own yagi antenna. Due to material, i decided on a 5 element yagi built for vhf since all i would have to buy is more 38. Model elements boom length ft mhz range gain dbi mount position polariz.

This page covers 3 element yagi antenna calculator. Dont forget the driven element red is cut in the centre. Yagi calculator is a windows program that also runs well on linux. Simple wideband yagis for 2m and 70cm errata and extra. Figure 2 shows a screen shot of an example 70cm dl6wu yagi design in inch. The antenna is bearing 25 degrees north north east and will be used.