All you need is two rabbit ear antennas from radio shack, two catv baluns, four feet of 34. This sketch shows a semiexploded view of the antenna. Laniq sdr features stand alone software defined radio 30. Im thinking to do a 3element 2m and a 5element 70cm design, and id like to make the entire thing no more than 36 long. Homemade yagi beam antenna for could be very useful, particularly for fixed emplacements in lieu of field phones or readily available encryption. Antenna, ve3sqb ham radio antenna design software programs.
The yagi antenna is a narrowband antenna designed to work only on fm channel. Obviously the result of a model calculation using the program by kuo and strait will. Amateur radio, communication antennas, yagi antenna for homebrewers, software programming and developement, electronics do it yourself and online shopping. A well designed yagi antenna as per the design given below can cover a line of site distance of even 5 kms with just 1 watt rf power. Yagi 6 element 7 element yagi calculator resource detail the dxzone a 2 element direct feed yagi for multiple bands by nno s.
The amsat sa 2 m 70 cm dualband yagi antenna is now available. Hi guys and gals, im looking to buy a directional antenna for gmrs that will also work on vhf when i get the tech license. Optimized for 144 145 mhz or 144146 mhz and 432 434 mhz or 430 440 mhz. This page covers 3 element yagi antenna calculator. Please post a comment if you know other great software or links with information about antenna calculator and design programs.
Online shopping from a great selection at electronics store. Building a multiband yagi lee jennings amateur radio zl2al. Your choice can be a leopack antenna system distributed by amsat. The yagiuda antenna is the most recognized antenna.
When i have completed the dual band yagi, it will replace my 3 elements hb9cv for 2m. A powerful but very easytouse program for modeling and analyzing nearly any kind of. Due to material, i decided on a 5 element yagi built for vhf since all i would have to buy is more 38. The radiation pattern could be a two dimensional array of size i. According to the aos manual, ao provides two methods for characterizing. If you have no particular preference within a given ham radio band, then simply enter its center frequency i. The line of yagi antenna products can ship the same day across the world.
Design and fabrication of crossed yagi antennae for dual frequency satellite signal reception at ground. Long yagis are commonly used from the 144mhz amateur band to the 2. Feeding a dualband uhf and vhf yagi antenna amateur. Although the rest of this article is about yagi antennas, the generalisation to any. This band is a special case in a rural area where man made noise is practically. Im planning to build the wa5jvb cheap leo yagi, which is basically a 2m and a 70cm yagi on the same beam for handheld or tripod use. Increase your range by selecting cushcrafts 2m70cm wideband yagi beam antennas. Lets see some antenna calculator and antenna design software that will help you. Yagi antennas from international supplier and manufacturer pasternack enterprises.
A lot of the 2m70cm antennas i have seen are for satellite use with the one yagi vertical and the other one horizontal, but this one has both yagis in. This program uses different formulae for 2, 3 or multielement designs and includes element tapering. The design of the yagi uda antenna for the vhf band has been presented. Antenna calculator calculate your dipole, 3 element yagi etc find the length of a dipole. This is the software perite used to design the perite 850 and 900 yagis. My question is would you be wiling to share with me all of the measurements for the multiband antenna you built, so that i can have a chance at a successful build for my.
Since then we have become the largest manufacturer of amateur, cb, and scanner antennas and accessories in the uk we are also the largest local authorised dealer for alinco, kenwood, icom, yaesu and wouxun. Log periodic directional yagi antenna 15dbi gain for 3g 4g lte xlte aws iden pcs 698mhz2700mhz wide band full band. The calculators for other antenna types such as parabolic,horn,dipole and patch are also mentioned. Lets see some antenna calculator and antenna design software that will help you design faster and better. Vhf and uhf are the two bands carrying all ota television broadcasts. Building a yagi antenna for uhf jtech engineering, ltd. Cushcraft 2m70cm wideband yagi beam antennas a27010s. Now its time to step it up just a little bit and fabricate a bigger antenna. It has 5 elements widespaced on 2 metres and 9 elements on 70 cm. About dual band yagi antenna the resource is currently listed in in a single category.
Nowadays, in the 64bit era, with the advent of windows 7 and higher, running a old. Online calculator yagi uda antenna based on nbs tn 688. Bazooka calculator calculate double bazooka for win3win95 by w4bej. Build the 3 x 5 elements 2m70cm dualband yagi dw1zws. Download yagi designer software for windows for free. The design and simulation is done using simulation software know as antenna. The amsat sa 2 m 70 cm dualband yagi antenna is now. We offer a huge selection of yagi antennas, including crosspolarized and circularly polarized, from top brands like m2 antennas, cushcraft, mfj, and diamond antenna. When you design a new antenna using a computer software, you may be. The antenna includes a mounting kit that can be used to mount the antenna on to roof or pole. Design and fabrication of crossed yagi antennae for dual frequency. It has the best gain for its sizes and a correspondingly narrow main lobe beam. This link is listed in our web site directory since saturday sep 17 2005, and till today vhfuhf yagi antenna design has been followed for a total of 144948 times. This will direct more of your output power when transmitting, while at the same time reducing interference and increasing signal strength when receiving.
Yagi optimizer is an old dos program made more than 20 years ago bya k6sti made to analyze and design antennas its very suitable to vhf antenna modelling and even if it is very old it is still very popular. A good yagi design is as easy to build as a poor one. A portable 2element vhf yagi iw5edi simone hamradio. These antennas are perfect for packet applications and assembly is a snap with cushcraft. An easy dualband vhfuhf vertical antenna made with a tv twin lead an. While there are plenty of high performance antenna designs. The amsat sa yagi is manufactured in one of his factories in vereeniging. The main category is antennas for vhf uhf bands that is about antennas for vhf and uhf radio bands. So need the source code for design and simulation procedures. The dl6wu yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a useful pattern. Nowadays, in the 64bit era, with the advent of windows 7 and higher, running a old msdos program is very hard, but fortunately someone thought to us. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. Receive is good outside the band both above and below the 2 meters. This omni antenna is designed for outdoor, industrial use.
It is possible to design a dual band antenna using a single driven element in order to avoid the use of a diplexer note the correct term for this device. It is quite possible, that other calculators deliver slightly different results. With yagicad it is possible to enter a base design from scratch or use one of a number of saved well known designs. Looking at the lower right uhf chart, anything below about 50dbm will be. The antennas described in this article were built as the result of several discussions between kent and a cuban radio operator. Pasternack yagi antennas are part of over 20,000 rf, microwave and fiber optic components in stock 99% of the time. Computer design of very high gain yagi antennas sm 5 bsz. Im still searching from some software that can handle dual band, single feed. Experiments tweaked by audionut 14 dbi, 11 element hiband pdf. Education software downloads yagi designer by goforth laboratories and many more programs are available for instant and free download.
However i highly recommend to follow my instructions, which are based on computer antenna simulation software 4nec2, to maximize performance. I have a dual band yagi, 1gy1144430m14 from evertime enterprise co. Using the moxgen software the calculated dimensions for the elements were. It produces maximum gain but requires tweaking for the number of elements. Cheap yagi antennas for vhfuhf by kent britain, wa5vjb edited by john maca, ab5ss editors notes. You can point the antennas at stations while you are in qso with them. If you want to put this thing outdoors, do not use brass, as it gets brittle. Its very suitable to vhf antenna modelling and even if it is very old it is still very popular. Whether youre operating on 2 meters or you work in the 1. A handle was added on the boom end which makes it more comfortable to hold and further isolates the antenna from the handler. The formula and basics of yagi antenna calculator are also explained with example. Build your own 2m70cm 3 elements vhf by 5 elements uhf yagi antenna with excellent gain for both vhf and uhf operation.
This design can then be optimised or scaled to suit particular requirements. Yagi calculator is a windows program that also runs well on linux, ubuntu 8. Design and fabrication of two crossed dipole yagi antennae have been accomplished. Yagi calculator is a program to assist with the design of long yagi antennas. Each band has its own reflector and director elements. This link is listed in our web site directory since tuesday jan 20 2015, and till today dual band yagi antenna has been followed for a total of 1223 times. Mmanagal free antenna design and modelling software. Yagi calculator is a program build to produces dimensions for a dl6wu style long yagi antenna. Ive taken what i learned from the gmrs continue reading homebrew 5 element vhf yagi. Also references arrls yw antenna modeling software, and use hdsdr to demo the build.
An easy handheld dual band 2 m70 cm yagi satellite antenna for working the so50 and other fm amateur radio satellites. Yagicad is a fully integrated analysis and design package primarily intended for vhf yagi aerials. About vhfuhf yagi antenna design the resource is currently listed in in 2 categories. Following the successful software design, a stepwise precise hardware fabrication was taken up. Design and fabrication of crossed yagi antennae for dual. This antenna is designed for amateur band frequency for both vhf 2m and uhf 70cm. I may build it and add a few elements if i can model the antenna somehow. I am relatively new at ham radio and i have just read your article on the multiband yagi you constructed from an old spider beam antenna, and i am intrigued to say the least. The list will grow with your help so lets start and share the knowledge. Listed under the antennasvhf uhf category that is about antennas for vhf uhf bands. The evaluation of the designed antenna shows that the yagiuda antenna designed by using minkowski curve model successfully reduces antenna size up to 9. Pdf optimal design of yagiudi antenna for vhf band.
From this two element design i decided to experiment on adding another band for. Hence here is the double biquad antenna and biquad antenna calculators for handmade antenna based on average data. Dw1zws panda antenna original handcrafted philippines. Compact and effective 2m70cm dual band antenna for satellite operation building the uhf cheap yagi for satellite communication station buy motorized crossed yagi antennas solution is the best solution but certainly not the cheaper. Calculate safety distance from your antenna icnirp is a calculator software.
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