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AGC
The 5-
Band AGC section works on the
average
level of the program material
and can act both as a dynamic
equalizer and as a compressor/leveler depending on settings and the dynamics in the program material itself.
There are 3 submenu
control groups in the 5
-
Band AGC section, XO, AGC and Mixer:
The output of the Wide Band AGC section feeds the 5
-
Band AGC section through a crossover.
There are 5
variable controls in the Basic tab for the AGC crossover
and 2 drop-
down controls in the Advanced tab.
AGC Crossover
(Basic Tab)
Each of the 5 AGC bands (LO, ML, MH HI and
SH) has a
Drive
control.
Each of these controls the input level to the
respective band over a range of + or
– 12dB and,
therefore, how far it will be dr
iven into gain
reduction. Higher settings increase the amount of
“compression” in the band.
AGC Crossover Menu (Basic Tab)
AGC Crossover
(Advanced Tab)
The 2 drop-
down controls in the Advanced tab
allow you to modify the crossover frequency
points of the MH (ML to MH) and LO (LO to
ML) AGC bands. The MH to HI and HI to SH
crossover points are not adjustable.
The available MH crossover settings are 3.2 kHz
and 2.5 kHz.
The available LO crossover settings are 190 Hz or
150 Hz.
AGC Crossover Screen (Advanced Tab)