Cables to Go CDM-570L manual Level Power

DPC Scaling Function

Level
Power	Max Ratio
	Nominal Ratio
Max Power
(Saturation)
Calibrated
Nominal Power
Level
Current (Scaled)
Max Power
	Current	Calibrated	Data Rate
	Data Rate	Data Rate

Figure C-1DPC Scaling Function

Figure C-1illustrates the scaling function, based on the ratio of power level to data rate, of the DPC system. Once this ratio is mapped out for the system, the DPC scaling function will automatically determine the appropriate power level for any given data rate. Three parameters are essential for this scaling function:

•Calibrated Data Rate

•Calibrated Nominal Power Level

•Maximum Power Level

As determined during initial system turn-up, the Calibrated Data Rate and the Calibrated Nominal Power Level values for the CDM are entered into the VMS Home State menu. The Maximum Power Level (the point at which the signal reaches saturation) for the Calibrated Data Rate is then determined, and entered into the VMS DPC menu (or the CLI Dynamic Power Control Configuration menu). If these home state parameters have not been entered, DPC will not be

C-4 Vipersat CDM-570/570L User Guide