Abstract: The antenna FM2 comprises a serigraphed aerial on the rear opening window (2) of a station wagon and consists of a defrosting network (4) with two superposed symmetrical vertical lines (5). A thick ground line (8) is serigraphed onto the rear window (2) and a two-wire cable (11, 12) joins the aerial FM2 to an electronic housing (9). On a quarter panel window of the vehicle, the aerial is serigraphed in the form of an F-shape of the servitude antenna and joined by a two-wire cable (19, 20) to an electronic housing (9). The serigraphed antenna for a rear window and for a quarter panel window of a station wagon provides excellent reception in both FM and servitude mode.

Abstract: The aerial of antennas FM1 and FM2 comprises, in addition to the original defrosting network (2), two pairs of vertical lines (9,10) which are disposed symmetrically in relation to the median vertical longitudinal plane of the vehicle. The FM1 signal is collected at a point (12) of the aerial which makes it possible to obtain a directive signal in the direction of the length of the vehicle on a plane with zero height. The FM2 signal is collected at a point (13) which is different from the aerial, making it possible to obtain a directive signal in the direction of the width of the vehicle on a plane with zero height. The serigraphed antenna for the rear window of a salon-type car provides excellent reception for FM, AM and servitude function modes.

Abstract: The aerial of antennas FM1 and FM2 comprises, in addition to the original defrosting network (2), two pairs of vertical lines (9,10) which are disposed symmetrically in relation to the median vertical longitudinal plane of the vehicle. The FM1 signal is collected at a point (12) of the aerial which makes it possible to obtain a directive signal in the direction of the length of the vehicle on a plane with zero height. The FM2 signal is collected at a point (13) which is different from the aerial, making it possible to obtain a directive signal in the direction of the width of the vehicle on a plane with zero height. The serigraphed antenna for the rear window of a salon-type car provides excellent reception for FM, AM and servitude function modes.

Abstract: The antenna FM2 comprises a serigraphed aerial on the rear opening window (2) of a station wagon and consists of a defrosting network (4) with two superposed symmetrical vertical lines (5). A thick ground line (8) is serigraphed onto the rear window (2) and a two-wire cable (11, 12) joins the aerial FM2 to an electronic housing (9). On a quarter panel window of the vehicle, the aerial is serigraphed in the form of an F-shape of the servitude antenna and joined by a two-wire cable (19, 20) to an electronic housing (9). The serigraphed antenna for a rear window and for a quarter panel window of a station wagon provides excellent reception in both FM and servitude mode.

Abstract: A horn with a piezoelectric membrane including a ceramic disk adhered to a rectangular plate. A slotted ring made of light metal is rigidly attached to the edge of the plate and comprises sixteen radial projections uniformly distributed around its circumference. Each projection has an axially facing boss forming a stiffener. The membrane assembly is attached to a molded rubber membrane that is circular to make mounting easier. The membrane comprises a flexible wavy portion enabling free movement of the center. Two thin metal strips are embedded in the rubber of the membrane for establishing electrical contact with the ceramic disc and the metal plate respectively. The piezoelectric horn has a substantially reduced weight and power consumption relative to conventional electromagnetic horns.