Orban OPTIMOD-FM 8600, Operating Manual

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2-18
INSTALLATION ORBAN MODEL 8600
GATE .................................................................................................... 12:00
RELEASE ............................................................................................... 12:00
VOICE ...................................................................................................... OFF
AGC .......................................................................................................... ON
COUPLE .................................................................................................... ON
B) Feed the 8200ST either with tone at your system reference level (0VU), or with
typical program material at normal levels.
C) Adjust the
G
AIN
R
EDUCTION
control for the desired amount of gain reduction.
We recommend 8-15 dB gain reduction for most formats.
If the STL uses preemphasis, its input preemphasis network will probably
introduce overshoots that will increase peak modulation without any in-
crease in average modulation. We therefore strongly recommend that
the STL transmitter’s preemphasis be defeated (freeing the STL from such
potential overshoot) and that the 464A be used to provide the necessary
preemphasis.
If the STL transmitter’s preemphasis cannot be defeated, configure the
8200ST for flat output. In this case, average modulation levels of the STL
may have to be reduced to accommodate the overshoots.
Quick Setup
The 8600’s Quick Setup feature provides a guided, systematic procedure for setting
up the 8600. It should be adequate for most users without special or esoteric re-
quirements. Following this section, you can find more detailed information regard-
ing setup outside the Quick Setup screens. Mostly, you will not need this extra in-
formation.
Quick Setup configures the 8600 for an analog-FM facility only. If you are setting up
an digital radio facility (HD Radio, DAB/DAB+, etc.), you must use the detailed in-
structions found after this Quick Setup section.
For the following adjustments, use
L
OCATE
(the green joystick, between
E
SCAPE
and
E
NTER
) to select parameters. After you have highlighted the desired parameter on
the screen, use the front panel control knob to adjust the parameter settings, as de-
sired.
1. From the pop-up Menu display, Locate to System Setup, then press the
Enter button.
If the pop-up Menu isn’t onscreen, press the control knob in.
2. From the System Setup screen, Locate to the Quick Setup icon, then
press the Enter button.
Quick Setup presents a guided sequence of screens into which you must insert in-
formation about your particular requirements.