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Query: Quad
Links: 205 | Categories: 4
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Dutch Antenna and Tower Manufacturers from Slimline Square Triangular Round Towers. Antennas production include Yagi Monoband/Dipole/HF Quad /50MHz and 70MHz Yagi-Quad, VHF-UHF yagi-Quad and Comby antennas VHF/UHF/SHF -
A portable 4 elements quad antenna for 144 MHz, 9 to 10 DBd forward gain, 30 DB front-to-back ratio, and 33 DB front-to-side ratio -
A Quadrifilar Helix Antenna for 137 MHz By George Goodroe, KF4CPJ -
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A 2,4 GHz 13cm band quadrible qiad antenna with reflector offering a 14dbd gain -
Plans and drawings of common amateur radio antennas, like jpoles, copper cactus, super jpole, omnidirectionals and quads -
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A five element quad antenna for 144 MHz DIY Project. This 2 Meter 5 Element Quad antenna was modeled using EZNEC, with a boom from a UHF TV antenna and CPVC pipe for spreaders. Constructed for 146MHz, it exhibits a gain of 10.7dB and an impedance of 75 ohms. Real-world results surpass the HT antenna, reaching over 20 repeaters up to 75 miles away. The design, costing around $10, employs simple tools for assembly. -
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Online antenna calculator for cubical quad antennas by EA1DDO / HK1H -
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A 4 elements cubical quad antenna for 144MHz for maritime mobile usage -
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Quad and loop antennas comparisons, evaluating the impedance and gain of both antennas and considerationso n horizontal loop antennas for low bands by PA0FRI -
Fractal Quad Yagi Antenna by KF7BS published on 73 magazine October 99 -
German antenna manufacturer for VHF UHF antennas, Quad-antennas, yagi-Antenna, LPDA-Antenna, W-Lan Antennas. -
Construction details and tests about a 2 elements cubical quad antenna for HF Bands (20,17,15,12 and 10m band). -
January 1955 QST article by W5DQV about constructing a Cubical Quad antenna for 14MHz PDF File -
Backpacking, boating or mountaintopping ? Invest your time and pack this novel directional gain antenna on your next expedition -
Let's explore the cubical quad antenna, or quad, and see what it really is and how it really works by w8ji -
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Theory of horizontal loop antennas, as discovered by G2PL using a lowered quad antenna and theorized by ZS6AKA -
The Quadlong antenna for the six meter band. This antenna feature a total gain of 6,4 dBd, F/B 21 dB and is also available in 70MHz version. Includes detailed pictures and plot diagrams. -
A javascript online calculator for popular wire antennas, from the standard easy to build flat-top dipole, to the inverted V dipole, but also the Quad Loop, and the equilateral delta loop antenna -
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A 5 band two element quad antenna working from 20 to 10 meters using hardware-store parts or modifying an existing commercial triband quad by KC6T -
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A 27-28 Mhz quad loop antenna by Bernard Mourot F6BCU in french -
Antenna Europe is an Lithuanian ham radio HF antenna manufactured specialized in Quad Antennas. Makers of Cubical Quad Antennas, Yagi Antennas, Antenna switches, Transformers and Robinzon Antennas -
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Durable Easy To Build 4 Element 6 Meter Quad Or 6N2 Or 4 Element 6 And 5 Element 2 Permanent Or Portable you decide based on your needs By WA8UEG -
probably the most simple and inexpensive antenna you could make for 23cm. -
A two meter Quad antenna project with detailed instructions on how to adjust the Quad gamma match -
A 2 element small footprint 40 meter phased, reversible, downsized quad array antenna. -
The information in this article has come from many amateur sources, the most notable was from WA6TEY (sk 1985) Ray Frost, who was a pioneer of VHF Quad designs and one of the best Southern California Transmitter Hunters. Ray built hundreds two meter quads in single and paired configurations as well as his famous mobile radio direction finding quad. -
Amateur Radio HF Cubical Quad and Delta Loop antennas manufacturer based in Spain -
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A 7 MHz wire antenna that is a mix of a Quad and a Yagi design. This antennas are often used on VHF. -
An online javascript calculator for cubical quad antennas, simply input the resonating frequency to calculcate up to a five element quad antenna. This quad antenna calculator let you determine the total length of each element and spacing among elements. -
Calculating the length of a resonant square quad loop -
based on an FT-1000MP Reflector discussion with Bill Heinzinger, W9OL, 15/16 November 2002 -
A four elements quad antenna for 144 MHz made with PVC pipes -
A page dedicated to the Quadrifilar Helical Antennas, with projects, pictures and antenna plans by OH2GVB -
Perfect Quad Co,Ltd japanese ham radio quad antenna manufacturer -
Article by G4AON about a 4 and 2 Element Quad Antennas for the 6m band -
Information about quad and loop antennas, matching tips, differences on polarization and impedence by PA0FRI -
This graphics-intensive program designs and analyzes active quadrature ("90-degree") networks for use in SSB transmitters and receivers. -
What makes a good solid-state amp ? by Adam Farson, VA7OJ/AB4OJ, May 2002 -
Quad antenna homebrewing, mechanical considerations by IZ7ATH