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Query: quad quad
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Antenna design program for Quads, Yagis, Inverted Vees, J-poles, Trap Dipoles and more for MS DOS. -
The cubic quad is a very popular way to get reasonably high gain and excellent front to back ratios as well as low angles of radiation for without going to extreme heights. Includes design for 2 6 10 12 15 meter bands -
Cubical quad antenna calculator in java script let you calculate elements size and spacing in inch and meters. -
Detailed instructions about a home made 2 element quad antenna made in diamond configuration, resonating on 10 12 and 15 meters band, by IZ7ATH Talino -
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Excellent Quad Antenna projects for 40 20 17 12 10 and 6 meters band in this pdf file project by Pfeiffer Maltese. The Pfeiffer Maltese Quad Antenna System takes on the structural challenges of traditional cubical quad antennas using a linear loading approach to reduce size while preserving performance. Andrew Pfeiffer created the pattern, which resembles a Maltese cross and enhances endurance in tough conditions. The system progresses through numerous configurations, from the 4-spreader Maltese Quad to the 16-spreader Maltese Quadruple-Cross, greatly lowering antenna size while retaining efficiency over several bands, including 12 to 40 metres. -
The Cubic Quad antenna is a commonly homemade antenna in the range of about 150 odd MHz. Our little project was to design one of these for use in the 2.4GHz range for 802.11 wireless LANs. -
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By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna. -
All about folded dipoles, a variation of the dipole is an antenna called a folded dipole. It radiates like a dipole but sort of looks like a squashed quad. -
8 elements quad antenna for 2 meters band, centered on 145 Mhz -
4 Element Cubical Quad, Yagis, LZA Circular Quad, Shrunken Quad , quarter wave, J-Pole, beam mounting , changing polarity -
An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain. -
Based on HB9CV, F6ITV decribes how build a swiss quand antenna for 28 and 50 Mhz. -
Low weight Titanium Verticals, Log-Periodics, Yagi antennas, Quads, towers and antenna accessories by Titanex -
This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable. A low-cost, easy-to-build Quadrifilar Helix (QFH) antenna for weather satellite reception using uPVC plumbing pipe and RG-58U coaxial cable. Unlike traditional designs requiring copper pipe and plumbing skills, this approach enables construction with basic tools and minimal technical expertise. The antenna's shorter, wider proportions favor higher elevation angles, reducing interference from horizon-level pager transmitters. Electrical connections are simplified at the antenna's apex, with the coaxial cable forming the radiating elements. Testing demonstrated consistent signal strength throughout satellite passes, proving effective weather satellite reception is achievable without precision engineering to sub-millimeter tolerances. -
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PKW Antennas for ham radio bands, Quads, delta loops, log periodics antennas for military and professional use by Ditta Martelli fabbrica italiana antenne -
Quad Antennas by CUBEX, Cubex currently offers Cubical Quad antennas for 2 meters through 40 meters. -
10-12-15-17-20m A description was in the German Ham-Magazine "Funkamateur" in Issue 11/2003 -
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One of the best compilations of frequencies in Sydney particularly SW. Include Police, other emergency people, Marine, the entire aircraft list for Sydney, RAAF squadron frequencies, UHF CB frequencies as well as a heap of miscellaneous frequencies like security, shoppin malls etc. -
Multi Band Quad,Cushcraft R5, R7, R7000, repair and maintenance, Remote Antenna Switching, Hexagonal Beam, Automatic Band Decoder, Low Band Verticals, Crank-up Tiltover Tower etc -
Programs for common antennas and some experimental, includes, dipoles, quad, Yagi, verticals, discone, jpole skyhoppers and parabolic antennas -
A suitable high gain 70cms antenna for SOTA operation by Richard Price GW0VMW -
The Yaesu VL-1000 Quadra HF Linear amplifier -
Long range Wi-Fi antennas you can build. Helicals, parabolics, and biquads discussed. How to add external antennas to WUSB54GC and F5D7050 usb wireless adapters for long range connections. -
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Sardine Can Antenna. is a BiQuad or Bi circle - wire length each side (8 x 1/4 waves ) 31 mm -
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Starting from an original project for a 2 element quad antenna for six meter band, ve7ca presents the dimensions for a 3 element version. -
This page details the construction of a biquad antenna. The biquad antenna is easy to build, and provides a reliable 11dBi gain, with a fairly wide beamwidth. -
Quad, Yagi for low bands. Specialist in antennas, supports and moving of medium-large sized radio antennas, professional rotators, masts, towers, and accessories. -
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TCUBE is a combination of a Spectrum Analyzer and a Two Tone Generator, with optional quadrature outputs. It can be used for measuring the intermodulation behavior of an audio circuit, and as a general purpose tool -
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EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes. -
This is a vertically polarized Broadside and Collinear Array each Loop is a vertically polarized Broadside Array both the right and the left side of the Loop is a bent 1/2 wave dipole working 180 degrees out of phase with the other one and that gives you 4.15dbi of gain by KE4UYP -
Some thoughts on a "hardware-store special" 2-meter quad, and a modified quad for 2 or 10 meters by K3MT -
Fiberglass for the antenna builder, Antenna Mart quads, Bandmaster quads, transmitting components, vacuum capacitors and relays, tower accessories, gin poles, remote RF coax switches, rotating side mounts, quad spreaders, quad parts, bristol wrenches, doorknob capacitors, transmitting electron tubes, and much more! -
A reversable quad antenna for 40 meters band by N4JTE -
This version of the 135MHz quadrifilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey's article Taming the QFH which appeared in the March 1997 RIG magazine. -
This Multiband Cubical Quad antenna a boomless Quad design with glass-fibre arms and a single coax wire connected to a remote antenna switch. This aerial work on 8 bands and has a 60-degree beam width. Despite achieving critical technical requirements, the antenna's three-dimensional structure presents obstacles, such as installation issues on fixed towers and risk of frost damage. The spider framework is built of stainless steel, with a compact 18-inch boom and strong angle iron arms. Tait use a variety of methods to fasten element wires and suggests placing them on the outside of the spreaders for improved insulation. The use of nylon twine or parachute cord between key attachment points allows for adjustable separation between pieces. -
Dipole, Yagi, Vertical, Cubic quad, Log periodic, J-pole, coil, and transmission line design package for the Macintosh -
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This antenna is based on a design for a portable 2 element 6m Quad by VE7CA, which is featured in the 19th Edition of the ARRL Antenna Handbook -
This 80-meter quad loop system requires only supports of modest height a better single-element antenna may be hard to find -
N6LF tells us about his monster two-element 40-meter quad, with bonus three elements on 20 and 15 meters. -
A project by N6BG for a four element cubical quad antenna for the 2 meters band -
Building guide for a two element quad antenna planned for 28 and 21 Megahertz