| 摘要 |
PURPOSE:To enable a release from a complicated operation of operating a collation with a level chart at each frequency by attenuating and amplifying a prescribed reference adjustment quantity differ frequency preliminarily decided at each amplifier based on the characteristic of the same axial cable for input and output signals. CONSTITUTION:An adjusting circuit 13 (TILT circuit) of an input signal is provided on the way of a monitor circuit 15 between a branching point 22 and a monitor terminal 17, and an adjusting circuit 14 (EQ circuit) of an output signal is provided on the way of a monitor circuit 16 between a branching point 23 and a monitor terminal 18. A reference curve indicating the amount of change of the intensity of an electric field of signals corresponding to the change of the frequency of the input signal calculated based on the frequency characteristic of the same axial cable, is decided, and the prescribed reference adjustment quantity for attenuating and amplifying the input and output signals by the TILT circuit 13 and the EQ circuit 14 is set for this reference curve. |
