Abstract: The invention is directed toward antenna apparatus of the type for use in receiving broadcast data signals, such as those transmitted from one or more satellites and also, in certain embodiments the antenna apparatus is capable of transmitting data signals. The antenna apparatus includes at least one component which is provided with a surface, typically an external surface, which is provided with hydrophobic properties such that the gathering of water, condensation and/or snow is reduced hence improving the performance of the antenna and reducing data loss from the data signals.

Abstract: This invention is directed toward a data signal receiving means including an antenna and a plurality of Low Noise Blocks (LNB's). A reflective filtering means is provided and located with respect to the LNBs and antenna such that data signals received at a first frequency or frequency range pass through the reflective filter means to a first LNB and data signals at second frequency or frequency range are deflected by the reflective filtering means and do not pass therethrough and pass to the second LNB. In this way a single antenna can be used to receive and process multiple data signals received at different frequencies or frequency ranges.

Abstract: The invention is directed toward antenna apparatus of the type for use in receiving broadcast data signals, such as those transmitted from one or more satellites and also, in certain embodiments the antenna apparatus is capable of transmitting data signals. The antenna apparatus includes at least one component which is provided with a surface, typically an external surface, which is provided with hydrophobic properties such that the gathering of water, condensation and/or snow is reduced hence improving the performance of the antenna and reducing data loss from the data signals.

Abstract: This invention is directed toward a data signal receiving means including an antenna and a plurality of Low Noise Blocks (LNB's). A reflective filtering means is provided and located with respect to the LNBs and antenna such that data signals received at a first frequency or frequency range pass through the reflective filter means to a first LNB and data signals at second frequency or frequency range are deflected by the reflective filtering means and do not pass therethrough and pass to the second LNB. In this way a single antenna can be used to receive and process multiple data signals received at different frequencies or frequency ranges.

Abstract: A locator stop (10) having a body (12) is arranged to be supported on an upper surface of a truss table formed with a plurality of panels (P), so as to extend across a slot (S) between successive panels. The body (12) has a basal surface (22) by which it is supportable on the upper surface of the table. The stop has a lock (14) which projects below the body (12) so as to be at least partly locatable in the slot (S). The lock (14) has dimensions in two mutually perpendicular directions, substantially parallel to the basal surface (22), which respectively are less than the width of the slot (S) and greater than the width of the slot. The lock (14) is adjustable by a manual operation performed above the table, wherein the lock (14) is able to firmly engage at least one of the panels (P) defining the slot (S) and thereby clamp or hold the body (12) on the upper surface at a required position along the slot.