Abstract: The invention relates to a double-action, two-piece antenna structure whose first antenna part, preferably a helix antenna (1), is fixedly connected to the antenna port of a radio communications set, and the second antenna port, preferably a rod antenna (2), is movable with respect to the first antenna part. In an active position, the second antenna part (2) is coupled to the first antenna part (1), forming a serial connection whose electrical length is as great as or greater than the electrical length of the first antenna part alone.

Abstract: An antenna and mounting device assembly fits on opposite sides of an aircraft to handle radio signals during flight. The antenna has a boom and radiating elements extending normal to the boom. The mounting device includes a first clamping bracket that attaches to the exterior of the aircraft, a pair of spaced arms that are twisted relative to the longitudinal axis of the first clamping bracket to orient the antenna relative to the horizontal and a second clamping bracket that attaches to the antenna.

Abstract: A satellite dish is mounted on a bracket which in turn is mounted over an uneven surface of a roof or a wall of a house. The bracket has an elevated bridge portion for supporting a mounting foot of the satellite dish. The bridge portion is integrally connected to and supported by two narrow leg portions which in turn are integrally connected to and supported by two narrow foot portions. The bridge portion is elevated from two foot portions by the leg portions in order to clear the uneven surface of the roof or wall of the house.

Abstract: In accordance with the present invention an antenna assembly is provided whereby a satellite dish antenna and a terrestrial antenna, for receiving satellite transmissions and local broadcast television signals, respectively, are mounted in the same location. A single base mounting bracket is used to mount the antenna assembly on a wall or other structure. The satellite antenna is secure to the base mounting bracket by a satellite antenna mast. An antenna interface bracket is also secured to the base mounting bracket. A terrestrial antenna mast, upon which a terrestrial antenna is mounted, is secured to the antenna interface bracket. The antenna interface bracket includes a central portion in the shape of an elongated parallelogram. At each end of the central portion of the antenna interface bracket are mounting ends which are attached at angles with respect to opposite faces of the central portion of the antenna interface bracket.

Abstract: The present invention includes an improved antenna mounting apparatus for mounting a conventional antenna to a mounting structure. The antenna mounting apparatus including a pair of vertically spaced apart arms having aligned holes therethrough and a base connected to and extending between the arms. A mounting device for mounting the bracket to the mounting structure is provided with two O-ring shaped insulating members each adapted to be received in a respective one of the aligned holes in the arms; antenna connection device adapted to engage the antenna and secure the antenna to one of the spaced apart arms. A cable connection device is provided for connecting an electrical cable to the apparatus. Interconnection device are adapted to engage the antenna connection device and the cable connection device such that the antenna connection device, the interconnection device and the cable connection device all form a single structural unit extended through the aligned holes of the mounting bracket arms.

Abstract: A portable antenna is provided for mounting on a motor vehicle's side window and enabling easy and rapid mounting and removal. The portable antenna includes a base member with a current-fed radiator carried by the base member and having a first portion for location on the inside of the side window, a second contiguous portion for overlying the side window and a third portion, contiguous with the second portion, for location outside of the side window with a distal end thereof extending upwardly when in use. A field-canceling conductor is carried by the base portion for location on the inside of the side window. A coaxial cable has its main conductor connected to a proximal end portion of the current-fed radiator and has a ground conductor connected to the field-canceling member. The current-fed radiator is dimensioned so that the second portion thereof is a relatively low impedance area.

Abstract: The mount disclosed herein facilitates the mounting of a radar antenna on a sailboat subject to heeling. A pivotable bracket providing a single horizontal axis of rotation only is supported on the upper end of a tube which surrounds the lower portion of the usual sailboat backstay, the tube preventing rotation around the backstay. The antenna is mounted with its center of gravity below the pivot axis and viscous damping is provided to prevent uncontrolled swinging of the antenna.

Abstract: A line of paired, oppositely extending bracket members is snapped together on the ground plane of a three-layer radar membrane. Antenna plane strips are horizontally located above and below the ground plane. Sufficient space occurs between confronting edges of antenna plane strips to allow extension of the brackets therebetween when the membrane is rolled up. Radially adjacent bracket members interlock to prevent axial displacement of the rolled ground plane.

Abstract: A base station antenna is disclosed having a ground plane in the form of a coarse screen. The coarse screen is connected to a support member. A pair of helical radiators is coupled, through the support member, to the coarse screen with one of the helical radiators being pivotable about its axis to vary the polarization.

Abstract: A mounting assembly for supporting a satellite transmitting antenna on a truck or other mobile vehicle includes a base member having a lower mounting surface adapted to be fixed against a mobile vehicle surface, for example, an air fairing on top of the cab of the tractor portion of a trailer truck, a first pivot axis on the base member spaced upwardly from the mounting surface and extending parallel with the latter, an upper member having an upper surface to which the antenna is secured and a second pivot axis spaced downwardly from the upper surface and extending parallel therewith, and a strut connected, at its end portions, to the first and second pivot axes with the latter parallel to each other so that the upper surface and the lower mounting surface can be adjusted relative to each other both angularly and in respect to the distance therebetween for varying the height and orientation of the mounted antenna.

Abstract: A portable antenna is provided for mounting on a motor vehicle's side window and enabling easy and rapid mounting and removal. The portable antenna includes an outer RF transfer member, a current-fed radiator connected to the outer RF transfer member, an inner RF transfer member, a field-cancelling member operative to cancel the electromagnetic field in the plane of the field-cancelling member, and a pair of generally parallel wire members pivotally connecting the outer transfer member to the inner transfer member and bridging the inner and outer transfer members so as to overlie the side window when the antenna is mounted thereon.

Abstract: This application discloses an improved citizens band radio coaxial antenna mount, featuring a vertical leg for connecting with a whip antenna and a connected internal core extending to near the bottom, and a hollow horizontal leg having exterior connection means for a coaxial connector leading to the radio and said horizontal leg including a central core pin and surrounding compressable spring, serving to control contact of central core elements to complete the connection.

Abstract: A roof mount for securely attaching dish antennae to roofs of houses typically supported by a plurality of spaced rafters has a two piece frame attached to a selected portion of a roof with one piece on top of the roof supporting the dish and its adjusting mechanism and the other piece of the frame underlying the first frame beneath the roof. A plurality of fasteners penetrate the roof and both frames and draw the frames toward each other to clamp them about the selected portion of the roof and provide steady support for the antenna.

Abstract: When a portable communication equipment such as a cellular telephone is carried inside an automotive vehicle, there is a need for its antenna to be supported exterior to the vehicle frame but at the same time be easily detachable from the vehicle.The invention provides a mounting clamp assembly for removably supporting an antenna on the exterior side of a vehicle window, and includes circuit means extending over the top of the window for sending signals between the antenna and the equipment. The mounting clamp assembly is easily attached to or removed from the window and its operation does not interfere with either the operation of the electrical circuit or the opening or closing of the window.

Abstract: A mounting structure for satellite dish antennae and method and means for anchoring the structure to the roof or sidewall of a typical residential building, such as a house, are disclosed. The mounting structure includes a mast for supporting the dish antennae. The anchoring means includes a bar having a back portion and sides which define an open-ended channel. The sides of the bar are further provided with integral adjoining lips which extend the length of the bar. Also included in the assembly is a clamp provided with holes through which bolt means may be inserted to tighten and secure the clamp about the mounting structure's mast to the bar's lips. When so tightened, the clamp tightly engages the external surface of the mast to prevent it from torsional movement relative to the clamp.

Abstract: A support assembly for a mast includes a mounting plate to which a cradle can be permanently fused or attached by means of spacers of different thickness to select the desired spacing of the mast from the mounting plate. The cradle has an arcuate mast support surface which extends axially to a length at least twice the arcuate length. The arcuate arc length is preferably less than 180.degree.. The mounting plate is adapted to be secured to a masonry wall, such as the side of chimney, by means of masonry screws or the like. To this end the mounting plate is provided with at least two mounting holes, at least one of which is elongated to assure that both mounting holes overlie mortar spaces between bricks in the masonry wall. The supported mast is clamped to the cradle by means of a U-bolt and toothed bracket plate. In the preferred embodiment, two such assemblies are secured to the wall with their mast support surfaces in axial alignment.

Abstract: A function or operational element which is pivotable about a first axis from a rest position into a work position and articulated at a support or carrier member can be positionally arrested by means of an arresting device. The arresting device comprises a bracket secured to the function element and a pawl pivotable about a second axis. In the arrested position a substantially arcuate-shaped end surface of the pawl contacts at a given point a slide or contact surface of the bracket. Due to the particular arrangement of the second axis to the first axis and the spaced arrangement of the center of the end surface eccentrically to the second axis it is possible to exactly position the function element and to self-lockingly fix such in a predetermined position. This arresting device is particularly suitable for use with automatically pivotable antenna on space vehicles with subsequent self-arresting.

Abstract: In an antenna window mount assembly of the type including a bracing member securable within the frame of a window, and a supporting member securable in outwardly extending relation from the window, an improved T-shaped swivel joint releasably secures the supporting member to the bracing member to permit the supporting member to be moved between the outwardly extended position and a swivel position in which the free end of the supporting member is near the window.

Abstract: A pair of U-shaped members are affixed to each other in spaced parallel inverted position. Each of the members has a pair of spaced parallel arms joined by a head perpendicular to the arms. An antenna affixing device links the members for supporting a TV antenna in upright position. A fastening device on the members affixes the members in inverse position on a parapet.