About The 8500S' Shd / Digital Radio Processing - Orban OPTIMOD-FM 8500S Operating Manual

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OPERATION ORBAN MODEL 8500S
D) Save the resulting preset as a second User Preset/
You may now program two GPI inputs to recall these two presets as desired. Recall
the first preset to force "music" mode and recall the second preset to force
"speech" mode. Of course, you can use any other means of recalling these presets
including Automation, your Optimod's API, and PC Remote.
About the 8500S's HD / Digital Radio Processing
Except for the fact that models 8500S/HD and 8500S/FM both offer an analog chan-
nel diversity delay, this section applies only to 8500S units, not 8500S/FM units.
Model 8500S/FM is the same as model 8500S except that model 8500S/FM does not
provide digital radio processing. Model 8500S/FM can be upgraded to an 8500S/HD
in the field via the 8500SUPG/HD upgrade kit, which can be purchased from your
Orban dealer. Units are upgraded from a PC; it is unnecessary to remove the 8500S
from the rack.
The 8500S HD ("HD Radio") output is designed to feed streaming, netcasting, and
digital radio channels, which can be DAB, DAB+, DRM, or the iBiquity® HD Radio™
system approved for use in several countries including the United States .
The equalizer and five-band compressor/limiter in the HD processing chain have
their own sets of user-adjustable audio controls that are independent of the controls
in the FM analog transmission chain's equalizer and five-band compressor/limiter.
This allows you to optimize the HD processing for the higher fidelity sound provided
by the digital channel while giving you the flexibility to process the analog channel
as you wish. The stereo enhancer, phase rotator, and 30 highpass filter are common
to the two processing chains and their controls, which affect both chains, appear
only in the FM adjustment screens.
To facilitate matching the FM analog and HD signals to minimize analog/digital
crossfades in HD receivers, you can force the HD channel controls to track the FM
channel controls by setting the FM HD C control to FM HD.
C
ONTROL OUPLING
When you have finished tuning a preset to optimize the sound of the analog chan-
nel, you can then set the FM HD C control to I and
C
ONTROL OUPLING NDEPENDENT
tweak the HD processing as you wish. This control is located in the HD L page
IMITING
of A . You can also toggle this control via two buttons on the but-
C
DVANCED ONTROL
ton bar in 8500S PC Remote. When FM HD C C is I , a
ONTROL OUPLING NDEPENDENT
third button toggles PC Remote focus between corresponding FM and HD tabs. This
allows you to compare your FM and HD settings easily.
Setting the FM HD C C control to I defeats the L -
ONTROL OUPLING NDEPENDENT ESS
control, so if you want to use L , adjust it before you start to make
M -M
ORE ESS ORE
independent adjustments to the FM and HD chains.
If a given preset has certain HD and FM controls set differently, setting the FM>HD
to C will immediately cause the HD controls to take the
C C
ONTROL OUPLING OUPLED
same settings as their FM analog counterparts. If you again set FM>HD CONTROL