able to function and will disable itself, resulting in an error message that is displayed in the CLI.
Under most circumstances, the system will be running at the Calibrated Data Rate, at the Calibrated Nominal Power level. When the VMS sends a switch command to the CDM, the modem will go to a different data rate, and will calculate a nominal power level for the transmitter. Communication is estab- lished, data starts to flow, and the modulator begins receiving DPC packets from the demodulator and adjusting its transmit power level accordingly. When changing its power, the CDM will calculate a scaled maximum power based on its current data rate and certain other values in the home state. This calculated maximum is what insures that the modulator is not transmitting with more power than is necessary, thus preventing problems.
Appendix C - Dynamic Power Control |
