System and method for dynamic amplitude adjustment of modulating signal in frequency modulated transceivers

A method for optimizing transmitter output of a digital microwave radio including the steps of

• monitoring a characteristic of the transmitter,
• generating a correction signal in response to the monitored characteristic,
• summing the correction signal with a conventional signal to conform the transmitter output to a predetermined mask, and
• repeating the monitoring, generating and adding steps periodically.

A method for optimizing transmitter output of a digital microwave radio including the steps of

• monitoring at a remote receiver the output of the transmitter,
• generating an error message in response to the monitoring step,
• developing a correction signal in accordance with the error message, and
• adding the correction signal to the transmitter FM modulator occupied bandwidth to conform the transmitter occupied bandwidth to a predetermined mask.
• repeating the monitoring, generating, developing and adding steps periodically.

In a digital microwave radio having an outdoor unit and operating at a preselected frequency band, a method for optimizing transmitter output including the steps of

• monitoring the temperature of the outdoor unit,
• selecting, from a lookup table, a correction factor corresponding to the monitored temperature and operating frequency band,
• generating a correction signal in response to the correction factor, and
• adding the correction signal into the transmitter to optimize transmitter output occupied bandwidth.

A digital microwave radio having transmitter and receiver portions comprising

• a bandwidth monitoring circuit for detecting the bandwidth transmitted from a remote radio,
• error logic for developing a digital error message representative of the difference between the monitored bandwidth and a reference value,
• a feedback circuit for providing the digital error message to the remote radio, and
• amplifier means for adjusting the output bandwidth in response to the digital error message.