Orban OPTIMOD 6300, Operating Manual

Page: 72 / 255

2-24
INSTALLATION ORBAN MODEL 6300
casts, and any other channel that uses a lossy codec. When in doubt, use
F
LAT
preemphasis.
When operated pre-emphasized, the 6300’s MB look-ahead limiter
should only for light protection limiting. If you use too much gain reduc-
tion in the look-ahead limiter, you will hear pumping on material with a
lot of high frequency energy. The 6300 cannot process for high loudness
on pre-emphasized radio channels. Use an Orban Optimod-FM for such
applications.
9. Set analog output and configuration level.
A) Navigate to
S
ETUP
> IO C
ALIB
> A
NALOG
C
ALIB
> A
NLG
O
UT
> AO S
OURCE
and set
the analog output source to:

AGC (stereo enhancement, equalization, and AGC without peak limiting)

AGC+LIM (stereo enhancement, equalization, AGC, and look-ahead peak
limiting)

MULTIBAND
(stereo enhancement, equalization, AGC, and 2-Band or 5-
Band compression without peak limiting)

MB+LIM
(stereo enhancement, equalization, AGC, 2-Band or 5-Band com-
pression, and look-ahead peak limiting)
See step 10 on page 2-14.
B) Navigate to S
ETUP
> IO C
ALIB
> A
NALOG
C
ALIB
> A
NLG
O
UT
> AO P
RE
-E . Set the
analog output preemphasis to
P
RE
-
E
(for preemphasis) or
F
LAT
.
When in doubt, choose F
LAT
. This is correct for a great majority of 6300
applications.
If you are sending the analog output of the 6300 through a digital link
that uses a lossy codec like MPEG, APT-X, or Dolby, set the output
F
LAT
.
Lossy codecs cannot handle pre-emphasized signals.
If you intend to use the analog output for headphones, set the output
F
LAT
.
If you choose P
RE
-
E
in this step, you must configure the analog output to
emit either the AGC+LIM signal or the MB+LIM signal monitoring [see
step (A) above].
If you emit the AGC+LIM signal, peak levels will only be controlled if you
set the AGC preemphasis to 50

S or 75

S in step 7 on page 2-23. This is
the only way to make the look-ahead limiter aware of the preemphasis.
If you emit the
MB+LIM
signal, peak levels will only be controlled if you
set the multiband preemphasis to 50

S or 75

S in step 8 on page 2-23.
If you are driving a pre-emphasized channel and can bypass the channel’s
internal preemphasis filter, use
P
RE
. However, if you cannot defeat the
channel’s preemphasis filter or if you will use the analog output for
monitoring, set the output
F
LAT
.
NOTE: If the 6300 is set to emit either the AGC or M
ULTIBAND
signals,
choosing P
RE
-
E
in the current step will cause very poor peak level control