Orban OPTIMOD 6300, Operating Manual

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OPERATION ORBAN MODEL 6300
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 Advanced Name Range
DEPTH Depth 0 … 10
DIFFUSION Diffusion Off, 0.3 ... 10.0
ENH AMT Amount 0.0 ... 10.0
ENHANCER In / Out Out / In
RATIO LMT Ratio Lim 70 … 100%
STYLE Style L–R Expand / Delay
Table 3-5: Stereo Enhancer Controls
The stereo enhancer has the following controls:
Amount sets the maximum spatial enhancement.
Enhancer In / Out bypasses the stereo enhancer.
O
UT
is equivalent to setting the
A
MOUNT
to 0.
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
ELAY
enhancer. This control determines the amount
of delayed L–R added to the original signal.
Style sets one of two stereo enhancer types:
222
or
D
ELAY
.
Depth sets the delay in the delay line. It applies only to the D
ELAY
enhancer.
AGC Controls
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