| 摘要 |
PURPOSE:To eliminate the need for readjustment, by varying a gain continuously with the output of an analog adjusting device on the basis of preset data as a basic point. CONSTITUTION:Through the adjustment of the analog adjusting device 31, a digital output corresponding to an analog output is inputted from an AD converter 32 directly to an adder and subtracter 39. The adder and subtracter 38 sends a variation value signal to an adder 39. The adder and subtracter 39 performs addition and subtraction regarding the digital output of the counting of a data register and the output of a variation value detection part 36. When the analog adjusting device 31 is adjusted in the increasing direction of a gain, etc., the gain of the receiver increases with the value of the analog adjusting device 31 from the preset data in a preset data memory 33 as the basic point. |
