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Has been designing and building cubical quad antennas for amateur radio operators around the world. Cubex currently offers cubical quad antennas for 70 centimeters through 40 meters. All models are built using only the finest materials available, including but not limited to cast aluminum alloy spiders, and only the finest quality fiberglass spreader arms. The antenna farm quad & multi band (hfvhfuhf) - vhf & uhf mobile radios radio accessories vhf & uhf hand held radios antennas mobile antenna mounts swrpower meters adapters coaxial cable two way accessories antenna accessories dc power supplies coax cable accessories connectors aviation radios repeater systems towers & accessories duplexers diplexers &. We are now building a 8 element 2 meter inside a 4 element 6 meter quad on a 8 foot boom. You can go to e-bay and look under quad antenna, will be under judyandrandytaylor. Be prepared and able to communicate in case of emergency with the largest selection at ebay. Diamond srh999 quad band 6m2m70cm23cm amateur radio ham antenna with sma male. Quad antenna, how to build a quad antenna for ham radio use category is a curation of 85 web resources on , shrunken quad, two portable antennas for 6-meter, the cubical quad is beautiful. Resources listed under quad antennas category belongs to antennas main collection, and get reviewed and rated by amateur radio operators. Radioddity qb25 pro quad band quad-standby mobile ham amateur radio transceiver car truck vehicle radio, vhf uhf 25w with cable 50w high gain quad band antenna. However the cubical quad beam antenna is able to provide some advantages in a number of circumstances. Since its first introduction in the 1940s, the quad antenna has found uses in a number of areas. It has been used for some television antennas, but it has also seen a lot of use within amateur radio applications for use at hf and vhf uhf. Orr buy the book today! Cubical quad antennas how to build and adjust quads -- by william i. Cowan (contributor) buy the book today! Simple low cost wire antennae by orr, william i. For example if you want a 10m6m2m440mhz quad-band antenna, then only add the 10m coil to the top of the main mast. If you want a 40m20m6m2m440mhz antenna, screw the 40m coil on the top of the main mast and the optional 20m coil to the side and you have a 5-band antenna. Horizontal or vertical polarization of an cubical quad-antenna is determined by placement of the feed point (feed gap on the driven element) - parasitic elements need to be mounted in the same orientation as the driven element.