Agc Controls - Orban OPTIMOD 6300 Operating Manual

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OPERATION

AGC Controls

In this case, the enhancer assumes that the program material is actually
mono and thus suppresses enhancement to prevent the enhancement
from exaggerating the undesired channel imbalance.

The ratio of L–R / L+R of the enhanced signal tries to exceed the threshold set by
the L-R / L+R Ratio Limit control.
In this case, the enhancer prevents further enhancement in order to pre-
vent excess L–R energy, which can increase multipath distortion.
Stereo Enhancer Controls
Basic / Full Modify Name
DEPTH
DIFFUSION
ENH AMT
ENHANCER
RATIO LMT
STYLE
The stereo enhancer has the following controls:
Amount sets the maximum spatial enhancement.
Enhancer In / Out bypasses the stereo enhancer. O
A to 0.
MOUNT
L-R / L+R Ratio Limit sets the maximum amount of enhancement to prevent multi-
path distortion. However, if the original program material exceeds this limit with no
enhancement, the enhancer will not reduce it.
Diffusion applies only to the D
of delayed L–R added to the original signal.
Style sets one of two stereo enhancer types: 222 or D
Depth sets the delay in the delay line. It applies only to the D
The AGC is common to the 2-band and 5-band structures.
Five of the AGC controls are common to the Full Modify and Advanced Modify
screens, with additional AGC controls available in the Advance Modify screen, as
Advanced Name
Depth
Diffusion
Amount
In / Out
Ratio Lim
Style
Table 3-5: Stereo Enhancer Controls
enhancer. This control determines the amount
ELAY
ORBAN MODEL 6300
Range
0 ... 10
Off, 0.3 ... 10.0
0.0 ... 10.0
Out / In
70 ... 100%
L–R Expand / Delay
is equivalent to setting the
UT
.
ELAY
enhancer.
ELAY