| 摘要 |
PURPOSE:To attain a simple constitution having only to locate a branch circuit in a pre-stage of a reception circuit by frequency-converting and branching a broadcast wave made of modulating many channel signals, and inputting the branched output to the reception circuit. CONSTITUTION:An FM broadcast wave F1 applied to an input terminal 13 is inputted to a broad band frequency converting circuit 2 through a band pass filter 1, and frequency-converted into a signal frequency F2 corresponding to a signal respectively for FM reception circuits 8-12 by the said converting circuit 2 and transmitted to the branch circuit 3. Then the signal frequency F2 from the converting circuit 2 is branched by branch circuits 3-7, and signal frequencies F8-F12 which are branched and outputted are inputted respectively to the FM reception circuits 8-12. |
