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Query: beam antenna
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Online javascript antenna calculator designed to give the critical information of a particular beam antenna, in this case a seven element Yagi, for the frequency chosen. -
A suitable high gain 70cms antenna for SOTA operation was sought that did not have the drawbacks of a long Yagi antenna, principally a narrow beamwidth and bandwidth. -
A javascipt online calculator for 2 and 3 element beam antennas. Just input frequency and will diplay element dimensions and spacing. Measurements in Feet and Meters by G4VWL -
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The document provides information on the Maria Maluca Antenna by dl8ncr, a small beam antenna fed with VHF ribbon line consisting of a dipole and a director adjusted for the desired band. It offers details on the construction and usage of this HF multi-band directional antenna. -
7 dB for 7 Bucks, a 2 meter beam antenna for the cost of a fast food meal! -
A 7 elements yagi beam monoband antenna for 14 Mhz by VE3GK -
Animated quad and yagi comparison. You can see antennas' characteristics behavior in a vertical plane with changing of the height. -
The Charles Gizmotchy high performance horizontal and vertical beam antennas. Two, Six, Ten and eleven meters antennas -
How to homebrew an hex beam antenna for 20 17 15 12 10 meters band by VA7ST -
Article by Ed Bathgate, N3SDO as published in CQ VHF Magazine July, 1988 -
BEAM_DX is a free windows software for radioamateurs or radio listeners usage. It allows to point a directionnal antenna towards an azimuth, a locator, an international prefix or any other geographical position on earth predefined by its latitude and its longitude -
A compact Beam Antenna That Can Be Built At Home. Made with lightweight wooden "X" frame with two folded and linear loaded wire elements. The two elements are approximately a half-wave each. -
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Hexagonal wire beams for all hf bands, technical resource, EZNEC files, tools for antenna modeling and documentation. You can also order parts to build your own antenna. -
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Located in France, DXBeam designs and manufactures a range of monoband, dual band and triband antennas, rotary dipoles, Moxons and Yagis -
A two elements beam antenna tunable from 6 to 20 meters, based on the Maria Maluca antenna project by DB9EX, in german -
The Upside-Down Umbrella Antenna by Don Keith N4KC -
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Here is an antenna for the nineties. It's strong, computer designed, and has lots of gain. It is a full size, four element beam on 10, and three elements on 15 meters -
A simple beam antenna offering good performances on 3 bands by 9m2mso -
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The "Tiny 2" is a great little 2 meter beam. It has some really interesting properties and it is a fantastic first time antenna project for the beginner. -
This design was adapted from an article in the ARRL Handbook and built with simplicity and duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db. -
G3TXQ pages focuses on understanding the HexBeam antennas. Basics, dimensions, multi band issues, antenna modeling. -
VA3EXT 5 element beam antenna for 6 meters band -
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Solves antenna matching problem with two phased antennas. Stacked rotary beams are popular. However, connecting two 50 Ohm antennas together presents some problems. -
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 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. -
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 -
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 -
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. -
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