Download yagi designer software for windows for free. In this tutorial we will look at how you can build a yagi beam antenna for 2 meter ham radio out of a tape measure and a few easy to find parts. This link is listed in our web site directory since monday feb 18 2008, and till today 7db tape measure yagi beam for rdf has been followed for a total of 4039 times. A yagi is a directional antenna made of up elements. Simply rotate the tape till the tab of the spring can be slid through the slot in the tape. Yagi antennas may suffer in performance if mounted elsewhere, like the center of the boom. If you pull the tape past its end, youll find that its connected to a spring. How to build a yagi antenna out of a tape measure ham. The traditional 2m tape measure beam the plans that i offer on my site, a common one performed remarkably well receiving arissat1, as well as ao51 and so50. In my case, my nephew and i used the plans from wb2hol, but we worked through the math to come up with element lengths. In this article well take that design two steps farther. Since ive built a ton of jpoles and wire antennas, ive wanted to build something different. So out comes the tape measure yagi from the garage.
Driven element is excited directly via feedline, all other elements excited parasitically. Tape measure vhfuhf yagi antenna one of the most fun amateur antenna projects is a pvc measuring tape antenna. This link is listed in our web site directory since sunday jan 26 2014, and till today tape measure yagi antenna has been followed for a total of 625 times. Now its time to step it up just a little bit and fabricate a bigger antenna. Yagi in the 1920s did not receive full acclaim in the united states until 1928. The formula and basics of yagi antenna calculator are also explained with example. There is room for flexibility in the construction techniques you can use. G0ksc simple to build, high performance yagi and quad. Joes site has a lot of details regarding the derivation, pattern, and gain properties of this antenna. The foxhunting receiver rox2a we used had a simple 3 element yagi with elements made of steel tape measure. The 2 meter tape measure antenna k4ive version are you looking for an easy kid friendly project.
But the tape measure is far away from being circular. Jan 08, 2012 using the traditional 2m tape measure beam performs very poorly on so50 or receiving any cubesats with a weak downlink. Consider a yagiuda consisting of a reflector, driven element and a single director as shown here. The tape measure isnt supposed to snap into the holder. It contains formulas you can use to calculate element lengths and spacing, as well as boom length. During this session, well also be building a 2meter tape measure yagi using joe leggios, wb2hol plans. John portune, w6nbc any hams have made 2 meter lape hunting. To scale this antenna for any other vhfuhf frequency, read the arrl article. Simply twist the tape so it disconnects from the spring. It looks like the tape measure that i have is a little more than 58in.
Education software downloads yagi designer by goforth laboratories and many more programs are available for instant and free download. How to build a yagi antenna out of a tape measure ham radio. Hurst amateur radio club uhf tape measure yagi foxhunt antenna. Yagi calculator is a program to assist with the design of long yagi antennas. The yagi, jpole and nvis dipole and a glance at antenna design using 3d em software brian mileshosky n5zgt high desert amateur radio club 15 feb 20. It is quite possible, that other calculators deliver slightly different results. But it was getting a little bit scuffed and the cable was all ratty.
Hurst amateur radio club uhf tape measure yagi foxhunt. Free online engineering calculator to find the dimensions of a yagi uda antenna for a given frequency range and length. I used 1ss103 pin diodes i purchased at a flea market. This antenna is designed for twometer operations, which, for a newbie ham. Cheap and light portable 2m yagi 9 db gain for less than 9 pounds build in march 2006 by maik, m0run in february 2006 i took part in my first ever foxhunt and there i had the idea to build this antenna. This morning, i ran across a couple more 3d printing projects for ham radio that i thought id pass along. The foxhunting receiver rox2a we used had a simple 3 element yagi with elements made of. Oct, 2017 in this tutorial we will look at how you can build a yagi beam antenna for 2 meter ham radio out of a tape measure and a few easy to find parts. Today i want to share with you a great yagi uda antenna modeling software for amateur radio operator and enthusiast. The article was titled extremely long yagi antennas.
Yagicad is a fully integrated analysis and design package primarily intended for vhf yagi aerials. The beam as provided in the kit is good for 2m but it has also been successfully scaled for use on other frequencies including 121. The flexible measuring tapes make it easy to transport, and the pvc comes apart to make it even easier to carry. The idea of using measuring tape is pretty ancient too and there is a successful manufacturer of motorized adjustable antennas. To assist in the design i used a shareware computer aided yagi design program written by paul mcmahon vk3dip. About 7db tape measure yagi beam for rdf the resource is currently listed in in 3 categories. Its an antenna built out of pvc pipe, a tape measure and a handful of hose clamps. Ive taken what i learned from the gmrs continue reading homebrew 5 element vhf yagi. To assist in the design i used a shareware computer aided yagi design program written by paul. The wb2hol tape measure beam is one of the standards for transmitter hunting.
This design is an adaptation of the wb2hol tape measure project. This lightweight antenna is perfect to use for fox hunts or as a portable directional antenna for. Simply download the yagi cad program and put the tape measure beam design file in the same directory. This project is unusual, so its something that will certainly capture the attention of anyone, particularly a kid. The spring will recoil into the case and the tape will be ready for trimming. It allowed me to optimize the antenna for the cleanest pattern combined with the best front toback ratio. This page covers 3 element yagi antenna calculator. Dec 08, 2016 the idea of using measuring tape is pretty ancient too and there is a successful manufacturer of motorized adjustable antennas. Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray.
Tape measure yagi beam antenna parts list 1 25 foot 1 inch wide steel tape measure 1 10 foot piece of 34 inch schedule 40 pvc tube 2 34 inch pvc cross connectors 2 34 inch. Simply download the yagicad program and put the tape measure beam design file in the same directory. Which is to say you can use the plans to build a perfectly workable antenna, or, you can use the formula for a yagi antenna to modify the design. Wc7i provides a calculator for a 3 element yagi design. So we started with the moxon antenna, then we made the 3 element tape measure yagi beam which was also successful. Using the traditional 2m tape measure beam performs very poorly on so50 or receiving any cubesats with a weak downlink. The best diodes for use in the antenna are rf pin diodes. One of the easiest and most fun amateur antenna projects is a pvc measuring tape antenna. First, well reduce cost and then well add oscar sat ellite mode j capacity. Disassemble the tape measure by pulling the tape out of the case. Due to material, i decided on a 5 element yagi built for vhf since all i would have to buy is more 38. This will be the director of the antenna and will attach to the front of the antenna. Jul 19, 2015 dual band tape measure yagi antenna july 19, 2015 amateur satellite, antennas, ham radio amateur radio, antenna, ham radio, satellite, saudisat 1c, so50, yagi michael while i wait for my arrow antenna to arrive, i thought i would experiment and build a dual band tape measure yagi since i already had most of the parts on hand.
Listed under the antennasvhf uhf category that is about antennas for vhf uhf bands. I decided on a 3 element yagi built for gmrs that is directly fed with 50ohm coax. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. For completeness this is not the only diy tape measure yagi on instructables. A portable yagiuda antenna for use at 144 mhz 2 m, with segments of yellow tapemeasure ribbon for the arms of the driven and parasitic elements. This design can then be optimised or scaled to suit particular requirements. For more information on tape measure yagis, check out the following links. The tape measure antenna is a home brew 2 meter antenna made out of pvc pipe and a steel tape measure. Most antenna simulation programs used by radio amateurs allow only to enter circular elements. Using the moxgen software the calculated dimensions for the elements were.
These tape measure sections allow the yagi antenna, which is normally a large. If you would like to experiment a bit with this program, the yagi specification file for this tape measure beam is available for download here. For completeness this is not the only diy tape measure yagi on instructables so also check out fn64s 2 m band radio direction finding antenna for vhf and manukas 70 cm band 433. Element lengthsdiameters and element spacing determine antenna behavior. With yagicad it is possible to enter a base design from scratch or use one of a number of saved well known designs.
About tape measure yagi antenna the resource is currently listed in in a single category. One of the things that i keep telling myself that i need to learn how to do is 3d printing. The 2 meter band tape measure beam antenna is a 3 element yagi with about 7. Since the design for the tape measure antenna is available online we are sharing with you the design for the 6 element moxon. Jan, 2014 for completeness this is not the only diy tape measure yagi on instructables so also check out fn64s 2 m band radio direction finding antenna for vhf and manukas 70 cm band 433. Construction plans for a tape measure yagi antenna, used to find hidden transmitters and fox transmitters. This lightweight antenna is perfect to use for fox hunts or as a. After a couple of failed yagis and the help of another ham on forums, i finally built a yagi that works. This is where you input the center frequency in megahertz. July 19, 2015 amateur satellite, antennas, ham radio amateur radio, antenna, ham radio, satellite, saudisat 1c, so50, yagi michael. Feb 07, 2017 the 2 meter band tape measure beam antenna is a 3 element yagi with about 7. The main category is ham radio directional yagi antennas that is about yagi antennas for ham radio use, manufacturers, plans and design.
Building the wb2hol foxhunting beam by g3zoi updated 32005 the design of the wb2hol 2m tape measure yagi shows a great piece of lateral thinking, it is also is proven to be highly practical for foxhunts and ardf. Tape measure yagi antenna construction easy to follow. Some other useful sites with information on yagi design include, w4rnl antenna articles, gm3sek vhfuhf long yagi workshop and k7mem vhfuhf yagi antenna design design software written in javascript. You will then be able to experiment with the design. It uses the graphs and principles developed by dl6wu and printed originally in the german radio magazine vhf communications march 1982. I am copying a design made by nt1k with a couple of changes. Are you looking for a project to encourage a new generation of ham radio operators. Would like to play with yagi models in design software, using tape measure elements as wires. Our results are optimised for gain, but others may be optimised for bandwidth. Measure and cut the four lengths you will need for this antenna cutting chart. This antenna uses the g0ksc opdes design on both 40m and 20m to provide fullband coverage on each. The main category is antennas for vhf uhf bands that is about antennas for vhf and uhf radio bands. While i wait for my arrow antenna to arrive, i thought i would experiment and build a dual band tape measure yagi since i already had most of the parts on hand. This antenna is designed for the 2 meter amateur radio band.
The calculators for other antenna types such as parabolic,horn,dipole and patch are also mentioned. Most diodes have a band which shows which end is the cathode. This antenna evolved during my search for a beam with a really great. What this software allows you to do is to designdraw an antenna using x,y,z. Tape measure beam work the oscar ham satellites or go transmitter hunting with this inexpensive portable dual band handheld tape measure yagi. If you are going to mount the antenna, set it up so the antenna will be forward of the mounts. Some are based on lookup tables, some completely hide their algorithms. The tapemeasure antenna is a simple, handheld 2 meter yagi. The most interesting part of the software is, it can help you to improve your design by projecting the antenna radiation pattern and estimating the radiation resistance impudence at any given frequency. Software modeling programs show that this antenna should have a gain of 7. Camden county amateur radio society georgia ccars inc.
1479 731 549 46 953 1481 697 1483 794 486 1059 1482 728 140 1527 478 646 1619 80 1187 154 910 92 630 200 106 80 274 1166 963 1323 1422 888 244 352 331