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Query: quad antenna
Links: 178 | Categories: 4
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Dimension and formula for a 4 element QUAD antenna for the 10 meters band -
Java script antenna calculators for ground planes, half wave verticals, quad antenna, 5/8th wave vertical antenna, dipole and inverted vee antennas -
Lincomatic's Homebrew WiFi Antennae, Cantenna, Toothpick Monopole, Patch Antenna, BiQuad, collinear wifi antenna all in one page -
MQ-1 four band HF beams 20,15,10,6 meters MQ-2 six band HF beams 20,17,15,12,10,6 meters, beam antennas and Hybrid Quad antennas -
This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable -
The function of the calculator is to give all of the needed sizing to construct a good 5 element quad antenna for amateur radio use. -
The manufacturer of the NuBeam, Vipole, and the multi-band Quad-Folded-Dipole (or QFD for short) antenna. Also have a unique multiband vertical which can combine operation on multiple HF frequencies as well as provide high gain on 50, 144 and 438MHz in a single antenna. -
This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB. -
A VHF Quad antenna for teh two meters band in italian -
2 Element Cubical Quad Antenna for 28 MHz by DL7JV in german -
One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna. -
A two element quad antenna for 10-15-20 meters by hs0zee -
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. -
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An experimental fractal Quad antenna for 10 meter band project by AG1LE -
Animated quad and yagi comparison. You can see antennas' characteristics behavior in a vertical plane with changing of the height. -
This 2 meter 3 element cubical quad antenna is small, light weight and portable. A backpack antenna that is easy to put together in just minutes and parts store inside the boom making it ready for travel or storage. -
G4URH calculations to design your own antennas, ground plane, half wave antennas, Quad Antennas and 5/8 verticals -
Easy Quad calculator, enter center frequency to get a quad antenna size -
KS7J's Cubex 5-Band Quad, tests, pictures and modification of this five bands quad antenna -
Hints about Jpole Yagi and Quad antennas -
Just Too Easy 40 meter reversible quads in two an three element version -
An interesting page about Quad antennas. Modelling QUAD antennas, comparing quad antennas to yagi antennas. Information on QUAD Antenna tuning and home brewing with help on calculating dimensions and tuning. -
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An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain. -
Quad maker designing and calculating quad dimension. Excel spreadsheet -
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Article about quadrifilar helix antennas, electrical and physical characteristics, difference between quadrifilar and conventional helix antenna -
The Grid Yagi (or Grid Quad) is a high performance yagi antenna that can be built with readily obtainable inexpensive materials. Described here is a 6 element 2 meter version with a boom length of about 1 wavelength, shown -
Pictures and history of HS0ZEE 37 meters antenna tower installation with a cubical quad on the top of this tall radio mast. -
Pictures of a 2 element cubex Quad antenna at a height of 10 meter -
An inexpensive and easy to build Quad antenna project edited by AA1PG -
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This home-brew antenna for 10 meters band cost just a few dollars, but gave excellent results by WA6CDO -
A project for a four element cubical quad antenna for 144 MHz in portuguese -
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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 -
