| 摘要 |
PURPOSE: To decrease the artificial errors and the variance of accuracy for control of the transmission output levels and to attain this level control with high quality by automating the control jobs of the transmission output levels at each stage or reducing the labor needed for these control jobs. CONSTITUTION: A transmission command signal which turns on the transmission operation of a portable telephone set 1 is sent to a control part 24 via a cable 30 and an I/F circuit 25 and by the key input operation of a personal computer 28. The part 24 controls the telephone set 1 and starts a transmission operation by the transmission output secured based on the transmission set data 26a. Then the data 26a is sent from the computer 28 and stored in a storage circuit 26. The data 26a is read out by the part 24 and the output of an output variable power supply 22 is controlled via a D/A converter 23. A transmission power amplifier 3C performs the automatic control of the transmission output in response to the output of the power supply 22. Thus the transmission output of the telephone set 1 is set at a level in response to the data 26a. This set output is measured by a wattmeter 29 and fetched into the computer 28. Then the data 26a is transmitted at a prescribed transmission output level. |
