Orban OPTIMOD-FM 8600Si, Operating Manual

Page: 83 / 356

OPTIMOD-FM DIGITAL INSTALLATION
2-27
2. Adjust Input selector.
A) Navigate to Setup
> I/O C
ALIB
> A
NLG
I
N
C
ALIB
> I
NPUT .
B) Set the
I
NPUT
to
A
NALOG
.
The 8600Si will automatically switch to analog input if signal lock is un-
available at the AES3 input.
3. Adjust Analog Input Reference Level.
[
−
9 dBu to +13 dBu (VU), or –1 to +21 dBu (PPM)] in 0.5 dB steps
The reference level VU and PPM (Peak) settings track each other with an offset
of 7 dB. This compensates for the typical indications with program material of a
VU meter versus the higher indications on a PPM.
This step sets the center of the 8600Si’s gain reduction range to the level to
which your studio operators peak their program material on the studio meters.
This assures that the 8600Si’s processing presets will operate in their preferred
range.
You may adjust this level with a standard reference/line-up level tone from your
studio or with program material.
Note that in this step, you are calibrating to the normal indication of the studio
meters; this is quite different from the actual peak level.
If you know the reference VU or PPM level that will be presented to the 8600Si,
set the reference level to this level, but please verify it with the steps shown di-
rectly below.
A) Press the Recall button.
B) Turn the knob until
ROCK-MEDIUM
appears in the lower line of the display.
C) Press the
Recall Next
button.
D) Navigate to Setup
> I/O C
ALIB
> A
NLG
I
N
C
ALIB
> AI R
EF
(VU
or
PPM,
depending
on which metering system you use
)
.
E) Calibrate using Tone.
[Skip to step (F) if you are using Program material to calibrate the 8600Si
to your standard studio level.]
a) Verify
E
XT
AGC
is set to
N
O
.
Refer to step 1 on page 2-26.
b) Feed a tone at your reference level to the 8600Si
If you are not using a studio level controller, feed a tone through your
console at normal program levels (typically 0VU if your console uses VU
meters).
If you are using a studio level controller that performs an AGC function,
such as an Orban 8200ST OPTIMOD-Studio, adjust it for normal opera-
tion.