Orban OPTIMOD 6200, Operating Manual

Page: 60 / 195

2-18
INSTALLATION ORBAN Model 6200
To calibrate the 464A’s output level and PEAK OUTPUT LEVEL meters using
program material:
A) Set both channels of the 464A controls as follows:
METER CAL 0
HF LIMIT PRE-EMPHASIS set to pre-emphasis of your STL;
if no pre-emphasis, set to 25
µ
s
OUTPUT ATTEN 0
INPUT ATTEN 10
GATE THRESH 0
RELEASE TIME 0
REL SHAPE SOFT
LEVEL OFF
COMPR OFF
HF LIMIT
OPERATE
SYSTEM OPERATE
POWER ON
MODE DUAL
B)
Play program material from your studio.
C)
Adjust the
METER CAL
controls on the 464A so that the 0dB segment on the
464A’s PEAK OUTPUT LEVEL meter just illuminates on program peaks.
D)
Adjust the
OUTPUT ATTEN
controls to drive the STL to 100% modulation on pro-
gram peaks, as shown on its modulation indicator.
4. Set 464A’s controls for normal operation with program material.
A) Set both channels of the 464A controls as follows:
METER CAL Do not change
HF LIMIT PRE-EMPHASIS Do not change
OUTPUT ATTEN Do not change
GATE THRESH 5
RELEASE TIME 5
REL SHAPE SOFT
LEVEL ON
COMPR OFF
HF LIMIT
OPERATE
SYSTEM OPERATE
POWER ON
MODE DUAL
B)
Feed the 464A either with tone at your system reference/line-up level, or with
typical program material at normal levels.
C)
Adjust the
L
and
R INPUT ATTEN
controls for the desired amount of gain reduc-
tion — we recommend 5-10dB.
D) Switch the MODE switch to STEREO .