Quadruple Quad by Richard Price BSc. MSc. GW0VMW 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. This is important as operating from a hilltop on a relatively under used band requires as broad a catchment
A Dualband QUAD made with two identical square loops, whose sides measure a quarter wave (?/4), connected together
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 of the 1980’s. Ray built hundreds two meter quads in single and paired configurations as well as
A simple 2.4 GHz double QUAD Antenna
A Quad antenna is a full wavelength conductor in the form of a square (or circle or diamond). It is actually two half wave dipoles spaced half wave length apart, bent at right angles at l/8th wavelength points and joined together. If the Quad is fed at either sides it is vertically polarized and if
Alain Miqueu, F6ITV Which monoband directional antenna can provide a good gain, a good F/B ratio, being not to large and mechanically within hamradio skill? As it is used to say, it’s a process that consists in searching the best compromise. This excludes high-gain and long-boom Yagi that are very large and heavy. A 3-element
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. The boom is made of 11?2 inch pvc pipe, although any suitable material can be used, such
