Optimod-AM 9400 V1.2 Operating Manual - Orban

2-20
INSTALLATION ORBAN MODEL 9400
Note that Quick Setup does not contain full instructions for setting up a
CQUAM system. Please refer to the detailed instructions following Quick
Setup.
If you are operating your analog transmitter in mono, choose either
MONO L (mono sourced from the left input channel), MONO R (mono
sourced from the right input channel), or MONO L+R (mono sourced from
the sum of the left and right input channels.
If you are sourcing the 9400 with stereo audio and are operating your
transmitter in mono, choose MONO L+R.
The left and right outputs of the analog chain are always active. In any
mono mode, they both emit the same signal.
The stereo enhancer and AGC always operate in stereo and are shared by
the HD and analog processing chains. The stereo/mono mode switching
occurs after the output of the AGC, where the analog and digital radio
processing chains split. The stereo/mono mode settings for the analog
and digital radio processing chains are independent of each other. Like
the analog processing chain, the digital radio processing chain can be
operated in STEREO, MONO-L+R, MONO-L, or MONO-R modes.
10. Set input operating levels.
In this step, you set the operating levels of the 9400 to match the input levels it is
receiving so the 9400’s AGC can operate in the range for which it was designed.
There are separate settings for the analog and digital inputs. If you provide both
analog and digital inputs to the 9400, optimum adjustment is achieved when the
AGC gain reduction meters show the same amount of processing when you
switch between both analog and digital inputs.
This will allow you to switch between analog and digital inputs without
sudden level changes.
A) Press the NEXT button.
B) Feed normal program material to the 9400.
C) Play program material from your studio, peaking at normal program levels
(typically 0VU if your console uses VU meters).
D) [Skip this step if you are not using the analog input.]
Hold down the ANALOG soft button and adjust the knob so that the AGC
meter indicates an average of 10 dB gain reduction.
E) [Skip this step if you are not using the digital input.]
Hold down the DIGITAL soft button and adjust the knob so that the AGC
meter indicates an average of 10 dB gain reduction.
11. Set the digital output sample rate.
A) Press the NEXT button.
B) [Skip this step if you will not be using the digital output(s).]