H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
H04B1/06—Receivers
H04B1/16—Circuits
H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
Landscapes
Engineering & Computer Science
(AREA)
Computer Networks & Wireless Communication
(AREA)
Signal Processing
(AREA)
Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators
(AREA)
Dispositif permettant de faire apparaître, sur une courbe rendue visible sur l'écran d'un tube cathodique, un repère correspondant à une fréquence déterminée.