ON EARTH BROADCASTING AND SATELLITE BROADCASTING COMMON RECEIVER SYSTEM

摘要

Satellite broadcast signals and ground broadcast signals [which pass through an upcounter terminal (300) are selectively supplied to an LNB (100). A mixing terminal (30) which receives the output signals of the LNB (100) also selectively receives an oscillating frequency from a local osciallating terminal (31) for satellite broadcast and from a local oscillating terminal (39) for ground broadcast through a switch (SW2). Second IF signals of a BS tuner terminal (200) are selectively supplied through another switch (SW3) to both an IF tuner terminal (40) for ground broadcast and to an IF tuner terminal (41) for satellite broadcast. With the system, the manufacturing cost case be saved, and a miniaturization is rendered possible.