Abstract: An azimuth-elevation type antenna support comprising a stock and a mounting plate on which the antenna is fixed, the support being mounted on a base relative to which the antenna takes up a cantilevered position, the support being characterized in that the stock (31) comprises: at least one top half-collar (41) disposed around the base (10) and having its arms (46) extending towards the antenna, with a top strap (42) fixed to the top half-collar (41) in order to lock it on the base; a bottom half-collar (43) disposed around the base and having its arms (47) extending away from the antenna, with a bottom strap (44) fixed to the bottom half-collar (43) in order to lock it on the base; and two side risers (45) extending over a certain distance parallel to the axis of the base and each interconnecting the end portion of one of the arms (46) of the top half-collar (41) to the end portion of the bottom half-collar (43) located therebelow.

Abstract: A feed horn comprising a radiating portion having a circular aperture, a transition formed by progressively varying waveguide sections and a flange which provides a coupling with a rectangular waveguide is fabricated from moldable material and designed to be fixed in a support. The radiating portion of the horn is formed by a cylindrical flange having at least two concentric grooves which form two traps.

Abstract: A telecommunications antenna is provided with a reflector having a semi-offset geometry, a feed mounted on a feed source rigidly fixed to the reflector, an antenna pedestal for supporting the reflector and the feed. Positioning of the feed is such that, in respect of a reflector illumination half-angle .beta. as seen from the feed such that 45.degree.<.beta.<55.degree., the offset angle .alpha. (angle between the focal axis .DELTA..sub.Foc and the median ray of the total beam which is emitted by the feed and illuminates the reflector) is 25.degree.<.alpha.<35.degree., the antenna mount being of the azimuth-elevation type known as an az-el mount.