4.1.3. PrmAGCmax_gain (AGC Maximum Gain)

Parameter Number: 0x408

Description: The PrmAGCmax_gain Gain parameter defines the maximum gain divided by 32. This parameter controls the maximum possible gain applied by the AGC algorithm. It also implies the High Threshold Level above which all the inputs produce the target output levels and below which produce the levels linearly decreasing with their input level.

AGCmax_gain is defined as:

• ((10^{((maximum gain in dB)/20)})/32) * 2²³

Note: Multiplying by 2²³ converts the value into a linear 24-bit value that accommodates the 24-bit DSPs used on the DM3 boards.

Here is a sample calculation to obtain a hexadecimal value of AGCmax_gain for a maximum gain of 21 dB:

• ((10^(21/20))/32) * 2²³

It is recommended that the value be set in the range of 0 dB to 30 dB.

Values: 0x040000 to 0x7e7db9 (0 dB to 30 dB)

Click here to contact Telecom Support Resources