Quick Setup (Audio Processor Mode) - Orban OPTIMOD-FM 5500 Operation Manual

2-14
INSTALLATION

Quick Setup (Audio Processor Mode)

A) Turn off the tone by pressing the T
B) Set controls as follows:
HF LIMITER... Set to match the pre-emphasis of the transmission system
L&R Out ................................................................................do not change
GATE .................................................................................................... 12:00
RELEASE ............................................................................................... 12:00
VOICE ......................................................................................................OFF
AGC ..........................................................................................................ON
COUPLE ....................................................................................................ON
C) Feed the 8200ST either with tone at your system reference level (0VU), or with
typical program material at normal levels.
D) Adjust the G
AIN
We recommend 8-15 dB gain reduction for most formats.
If the STL uses pre-emphasis, its input pre-emphasis network will proba-
bly introduce overshoots that will increase peak modulation without any
increase in average modulation. We therefore strongly recommend that
the STL transmitter's pre-emphasis be defeated (freeing the STL from
such potential overshoot), and that the 464A be used to provide the nec-
essary pre-emphasis.
If the STL transmitter's pre-emphasis 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 guides you through 5500 setup. It is appropriate for users without spe-
cial or esoteric requirements. Following this section, you can find more detailed in-
formation regarding setup beyond the Quick Setup screens. In most cases, you will
not need this extra information.
Regardless of whether you will be using the 5500 in audio processor or stereo en-
coder mode, you should complete this procedure. See Setup for Stand-Alone Stereo
Encoder Mode on page 2-22 for additional steps that apply to the stereo encoder
mode.
For the following adjustments, use the appropriately labeled soft button to choose
the parameter you wish to adjust. To change a parameter (like an output level), it is
usually necessary to hold down the soft button while turning the knob. However, if
there is only one parameter on a screen (like choosing 50 or 75µs pre-emphasis), you
can change this with the knob alone. (You do not have to hold down a button.) Let
the text on the screen guide you through the process.
ONE
R control for the desired amount of gain reduction.
EDUCTION
button.
ORBAN MODEL 5500