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Query: beam
Links: 255 | Categories: 5
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A project for a homemade multiband Hexbeam antenna for 10, 12, 15, 17 and 20 meters -
In these slides, differences between spiderbeam antenna and hexbeam antennas are explained comparing performances and measurements. -
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An interesting modification to improve the gain of your 5 element Tonna Yagi beam for 50 MHz by roughly 3 db! -
Draws a world map centered on your QTH. Type in a DX station's call sign to get the beam aim azimuth and distance to the station. -
Mapping software which links a Garmin GPS receiver to your Macintosh. Includes Maidenhead grid squares and beam-pointing maps. -
An antenna originally planned in the sixties, a two element beam antenna tunable on several band, in french -
A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands. -
NEC4WIN is a 32 bits commercial antenna simulation software based on MININEC3 developed by the Naval Ocean Systems Center in the 70s and 80s. It runs under Windows and can be used to simulate, analyze and optimize wire antennas, beams, verticals, etc. NEC4WIN has limitations. They are the same as Mininec3 on which the engine is based. -
An Attic version for limited space applications by NW9T -
Electronically controlled HF antennas. General coverage. Top features on all ham bands. Very advanced materials and state of the art technology. -
A 4 yagi beam VHF antenna made with PVC easy to carry in a backpack for portable operations -
The Vee Beam antenna project presents a versatile solution for hams, enabling operation across all eight High Frequency bands (80m to 10m) with significant gain on 20m to 10m. This easy-to-construct antenna utilizes two long wires at an angle, enhancing directional performance and minimizing ground losses. With a low visual profile, it is discreet and effective for various applications. The design allows for optimal leg lengths and included angles, ensuring robust performance while maintaining simplicity in construction and operation. The V Beam antenna is an aerial that you can use on all eight High Frequency amateur bands (80, 40, 30, 20, 17, 15, 12 and 10m) with an antenna tuner, and which gives significant gain on the five bands from 20 to 10 meters band. -
Description of the 80m antenna used at CN2WW in the ARRL-DX CW 2007 -
Shortwave Radio Schedules from Eibi/AOKI combined lists. Includes Google maps showing beam directions and long paths. -
Nowdays lots of people are putting up antennas to either beam in different directions at the same time or just to stack them and get a lower angle of radiation. Use this stackmatch to match you array. -
Notes on moxon antennas for VHF and HF bands. Main characteristics, gain and f/b ratio by DK7ZB -
Design for a 5 element 2 Metre beam with a forward gain of 8dBD and a front to back ratio of over 24dB. -
In the long history of beam aerials there has persistently existed the claim that certain types of aerials perform better than yagis. -
The HB9CV is a well known two element antenna of a directional beam type with a forward gain of 4 to 5 dBd. This one is for two metres but it can be scaled, from the dimensions in the diagram, for other bands I have also made them for four and six metres -
how to make a gamma match for a antenna. The Gamma match is the most used matching device used for yagi beams. -
Amateur radio propagation studies (science, research, engineering, operating) and the BeamFinder propagation analysis software -
Building a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. -
A 4 elements handitenna for 70 cm band. This is my version of the K5OE Handitenna. This one is a four Element instead of three, as I had less of a crunch on space than he did. The 1st three elements (Reflector, Driven Element, and Director 1) are the same dimensions as his were. -
Dedicated to State-of-the-Art lightweight portable radio. Sotabeams produces and sells amateur radio products dedicated to ham radio portable operations. Antennas, supports and masts, filters, wires and more accessories for amateur radio. -
A 21 MHz Four Square Beam Antenna This popular antenna for the lower bands, can also work well on 15 meters, QST Article -
VectorFox is a software born to incorporate a PC into the fox hunting environment. VectorFox is able to take inputs from up to 5 sources, such as a 2m beam, a 2m signal meter, a TDOA, etc, and display the results on the screen. VectorFox also accepts Agrelo inputs. From these results the operator can choose which indication is best and have a line drawn on the map in the direction of the signal. -
Six metre enthusiasts might like to experiment with this ‘Zig-Zag’ four-element vertical for lofts. Brian Williams, GW0GHF -
A ATU for beam and vertical antennas by PA0FRI -
The Yagi-Uda antenna, information on basic design, project and measure of Yagi-Uda antenna, include free repository/sample of beam antenna. -
Cushcraft X7 20-15-10 Meter 7 element beam Assembly & Installation -
Here are some lengths and spacings for various direct connect beams. -
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About the clemens match for beam antenna, as an alternative to common gamma matching techniques -
Exagonal Beam antenna cover 20-17-15-10 meters By KE4NU -
A web site dedicated to hex beam homebrewing. The hexagonal beam has become a wildly popular antenna. It is a directional antenna that provides great performance and does not require a full scale, expensive tower. -
An antenna project for a beam antenna for 7 Mhz -
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The Gizmotchy high performance horizontal and vertical beam antenna for 2/6/10/11 meter bands -
5-element antenna, with which G0JJL has worked lots of EU crossband, and won the RSGB Christmas Cumulatives 70MHz section twice in a row. -
An homebrew project for a 3 element coil-loaded Yagi beam antenna for 40 Meter band -
Antenna dealer, antenna masts, towers, mounts, antenna rotators, steppir and optibeam inrad dealer -
Design and build an 6 m dipole antenna from aluminum, tubing, that resembles the active element of a yagi beam antenna. -
Article describing how to homebrew a yagi antenna for 50 MHz, includes plans for a four and five elements yagi beam and details how how match impedence with a gamma match -
A homemade 10 element Yagi Beam Antenna for 50 Mhz by Rod Mackintosh, a NBS Yagi on a 13.2 metre boom. -
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Ground Plane - 1/4 wave vertical, J-Pole, 3 Element Yagi Beam and simple antenna supports -
Fabricates baseplate components, and provides hardware kits for DIY hex beam, spiderbeam and moxon antennas.