Indoor unit for satellite TV reception-1

EE October 1986 56 by J Et R v Terborgh INDOOR UNIT FOR SATELLITE TV RECEPTION-1 Following last months general introduction to satellite TV reception, this article describes the construction and operation of the indoor unit (IDU). This is in essence an interface between the low-noise converter (LNB) at the dish aerial and a conventional television receive": The first part of the article deals with the RF board contained in the /DU. Indoor converter for satellite TV • Single conversion, wideband FM tuner. • Complies with standard LNB IF range (950...1750 MHz) and downlead feed systems for CS and future DB satellites 111. • Includes VHF vision Et sound remodulator, LNB theft alarm, polarization selector, audio and video outputs, and switchable AFC.* • Remodulator test and satellite scan circuits simplify initial setting up and dish positioning.* • Also usable as a 23 cm band (1240...1280 MHz) amateur television (ATV) receiver. * To be detailed in a forthcoming article. Bef...