Orban OPTIMOD 8400 - Page 75

OPTIMOD-FM INSTALLATION
2-33
Note that in this step, you are calibrating to the normal indication of the stu-
dio meters; this is quite different from the actual peak level.
If you know the reference VU or PPM level that the 8400 will receive, set
the
Reference Level to this level, but do verify it with the steps shown di-
rectly below.
A)
From pop-up Menu, select the Presets screen.
B) Highlight the Rock-Medium preset.
C) Press Enter button to select the preset.
D) Calibrate using Tone.
[Skip this step if you are using Program material to calibrate the 8400 to
your standard studio level. Skip to step (E).]
a)
Verify Studio Chassis is set to no.
Refer to step 1 on page 2-30 above.
b)
Feed a tone at your reference level to the 8400
If you are not using a studio level controller, feed a tone through your con-
sole at normal program levels (typically 0VU if your console uses VU me-
ters).
If you are using an Orban 4000 Transmission Limiter, press its two
TEST
buttons. Feed a tone through your console at the level to which you normally
peak program material (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 or 464A, adjust it for normal
operation.
c)
Adjust the Reference Level to make the 8400’s AGC meters indicate 10 dB gain
reduction.
d) When finished, reset Studio Chassis to Yes, if required (e.g., if that was its
setting prior to setting
Reference Level).
e) Skip to step 5.
E) Calibrate using Program.
[Skip this step if you are using Tone to calibrate the 8400 to your standard
studio level—see step (D) above.]
a)
Verify Studio Chassis is set to no.
Refer to step 1 on page 2-30 above.
b)
Feed normal Program material to the 8400
Play program material from your studio, peaking at the level to which you
normally peak program material (typically 0VU if your console uses VU
meters).