Radio transmitter and transmission power adjustment method, and recording medium stored with program for implementing method

A radio transmitter outputting transmission signals of a plurality of transmission modes, comprising:

• a detection unit for generating a signal of a detection result by detecting said transmission signal;
• and
• a processing unit for generating a control voltage for adjusting a transmission power based on the signal of said detection result,
• wherein said processing unit comprises:
• a first power adjustment mode for storing a detection result for each transmission frequency when the transmission power is so adjusted that, in any one of the transmission modes, an error between the transmission power measured with a transmission power measuring instrument connected temporarily to said radio transmitter and a prescribed transmission power becomes not more than a prescribed value in a transmission frequency band;
• a second power adjustment mode for correcting and storing such that, in a corresponding frequency, an error between a detection result in a transmission frequency band and a detection result stored at said any one of the transmission modes becomes not more than a prescribed value, in other transmission modes;
• and
• a third power adjustment mode for performing feedback control such that, according to assignments of a transmission mode and a transmission frequency, an error between a current detection result and a detection result stored at said first power adjustment mode or said second power adjustment mode becomes not more than a predetermined value.

A transmission power adjustment method of a radio transmitter outputting a transmission signal of a plurality of transmission modes, comprising the steps of:

• storing a detection result by the APC detection of the transmission signal when a transmission power is so adjusted that, in any one of the transmission modes, an error between the transmission power measured with a transmission power measuring instrument connected temporarily to said radio transmitter and a prescribed transmission power becomes not more than a prescribed value, as a first adjustment step;
• performing a feedback control such that an error between a detection result at a time when the transmission power is adjusted in other transmission modes and a detection result stored at said one of the transmission modes becomes not more than a prescribed value, and storing a detection result at a time when the error converges depending upon the feedback control, as a second adjustment step;
• and
• performing a feedback control such that, at the time of transmission, an error between a detection result obtained by adjusting the transmission power and a detection result stored at said first adjustment step or said second adjustment step becomes not more than a predetermined value in an arbitrary transmission mode.

A transmission power adjustment method of a radio transmitter outputting a transmission signal of a plurality of transmission modes, comprising the steps of:

• storing a detection result by APC detection for each transmission frequency when a transmission power is so adjusted that, in any one of the transmission modes, an error between the transmission power measured with a transmission power measuring instrument connected temporarily to said radio transmitter and a prescribed transmission power becomes not more than a prescribed value in a transmission frequency band, as a first power adjustment step;
• storing a detection result, in other transmission modes, when an error between a detection result in a transmission frequency band and a detection result stored at said one of the transmission modes is corrected so as to become not more than a prescribed value in a corresponding transmission frequency, as a second power adjustment step;
• and
• performing a feedback control such that an error between a current detection result and a detection result stored at said first power adjustment mode or second power adjustment mode becomes not more than a predetermined value by adjusting the transmission power, according to assignments of a transmission mode and a transmission frequency.

A recording medium which stores a program causing a computer to operate as a processing unit of a radio transmitter outputting a transmission signal of a plurality of transmission modes,

• said program comprising the steps of:
• storing a detection result when a transmission power is so adjusted that, in any one of the transmission modes, an error between a transmission power measured with a transmission power measuring instrument connected temporarily to said radio transmitter and a prescribed transmission power becomes not more than a prescribed value, as a first adjustment step;
• performing a feedback control such that an error between a detection result at a time when the transmission power is adjusted in other transmission modes and a detection result stored at said one of the transmission modes becomes not more than a prescribed value, and storing a detection result at a time when the error converges depending upon the feedback control, as a second adjustment step;
• and
• performing a feedback control such that, at a time of transmission, an error between a current detection result obtained by adjusting the transmission power and a detection result stored at said first adjustment step or said second adjustment step becomes not more than a prescribed value in an arbitrary transmission mode.

A recording medium which stores a program causing a computer to operate as a processing unit of a radio transmitter outputting a transmission signal of a plurality of transmission modes,

• said program comprising the steps of:
• storing a detection result for each transmission frequency when a transmission power is so adjusted that, in any one of the transmission modes, an error between the transmission power measured with a transmission power measuring instrument connected temporarily to said radio transmitter and a prescribed transmission power becomes not more than a prescribed value in a transmission frequency band, as a first power adjustment step;
• storing a detection result, in other transmission modes, when an error between a detection result in a transmission frequency band and a detection result stored at said one of the transmission modes is corrected so as to become not more than a prescribed value in a corresponding transmission frequency, as a second power adjustment step;
• and
• performing a feedback control such that an error between a detection result and a detection result stored at said first power adjustment mode or second power adjustment mode becomes not more than a predetermined value by adjusting the transmission power, according to assignments of a transmission mode and a transmission frequency.