2-18
INSTALLATION ORBAN Model 8400
b) If you have defeated the STL transmitter’s pre-emphasis, place jumpers B and C
in the “PRE-EMPHASIZED” position.
c) If you cannot defeat the STL transmitter’s pre-emphasis, place jumpers B and C
in the “FLAT” position.
C) Replace the top cover, then replace all screws snugly. (Be careful not to strip the
threads by fastening the screws too tightly.)
2. Install the 464A in the rack. Connect the 464A’s audio input and output.
Refer to the 464A Operating Manual if you require information about installa-
tion, audio input and output connections to the 464A.
3. Calibrate the 464A’s output level and Peak Output Level meters.
There is no quick way to calibrate the 464A’s output level and
PEAK OUTPUT
LEVEL
meters using a tone. If your STL has input meters that give an accurate
indication of program peaks, calibration may be achieved quickly and pre-
cisely using program material following the procedures detailed in this step.
If you wish to use tone to calibrate the 464A’s output level and
PEAK
OUTPUT LEVEL
meters, follow the procedure in the 464A Operating Manual,
page 2-10, steps 10 and 11. Repeat for the right channel. Note that this proce-
dure instructs you to calibrate the 464A’s meters to indicate +3 dB for 100%
modulation of the STL. However, you may wish to calibrate them to indicate 0
dB for 100% modulation of the STL. Just be consistent in steps 10 and 11.
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 25μs
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.
To Next Page
Loading...
