| 摘要 |
PURPOSE:To prevent coaxial cords from being connected together by branching receivers of one reception frame while being divided into small groups, extracting an output nearly equal to an antenna input and inputting the output to reception frames provided in parallel. CONSTITUTION:Plural receivers RX-1-RX-20 accommodated in one reception frame 10 are divided into small groups 161-165. The 2nd branch circuit 15 is provided near the small groups 161-165, the branching depending on the number of branched receivers and the amplification proper to the compensation of connection loss are attained and the receivers are branched into plural small groups 161-165. An output nearly equal to an antenna ANT input is extracted from a part of the output and the output is outputted as an antenna input of the reception frame 10 provided in parallel. Thus, lots of coaxial cords are not connected altogether to one branch circuit. |
