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Compare AGC Performance for Different Maximum Gains

This model uses AGC blocks with different maximum gain settings to adjust the received signal power.

A time scope plots the effect of maximum gain on AGC performance. The maximum gain setting affects the ability of the AGC to reach its target output power. Random integer-valued symbols are QPSK modulated and then the signal level is scaled down by using a Gain block. Three signal branches flow to a time scope to plot the received signal magnitude with no AGC, AGC with maximum gain set to 30 dB, and AGC with maximum gain set to 24 dB.

Run the model and display the time scope to show the signal level adjustments performed by the AGC blocks.