Orban OPTIMOD-FM 8600Si, Operating Manual

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2-18
INSTALLATION ORBAN MODEL
C) Play program material from your studio, peaking at normal program levels
(typically 0VU if your console uses VU meters).
D) [Skip this step if you are not using the analog input.]
Hold down the
A
NALOG soft button and adjust the knob so that the
AGC
meter indicates an average of 10 dB gain reduction.
The procedure does not apply to the 8600Si’s stand-alone stereo encoder
mode. In this mode, the level indicated on the screen during this step is
the R.M.S. level (in dBu) of a 50 Hz input tone that produces 100% peak
modulation at the 8600Si’s composite output when the 8600Si’s
C
OMPOSITE
L
IMITER
D
RIVE
control is set to 0 or O
FF
.
E) [Skip this step if you are not using the digital input.]
Hold down the
D
IGITAL
soft button and adjust the knob so that the
AGC
meter indicates an average of 10 dB gain reduction.
The procedure does not apply to the 8600Si’s stand-alone stereo encoder
mode. In this mode, the level indicated on the screen during this step is
the r.m.s. level (in dBFS) of a 50 Hz input tone that produces 100% peak
modulation at the 8600Si’s composite output when the 8600Si’s
C
OMPOSITE
L
IMITER
D
RIVE
control is set to 0 or O
FF
.
10. Configure the analog outputs.
A) Set analog output feed.
a) Press the
Next
button.
b) Turn the knob to choose FM, FM+Delay, Monitor, or HD.
The HD selection will only be available if your unit is an 8600Si
B) Set analog output to be flat or pre-emphasized.
a) Press the Next button.
b) [Skip this step if you will not be using the analog left/right outputs.]
Turn the knob to choose
P
RE
-
E
(for pre-emphasis) or
F
LAT
.
If you will use the analog output to drive a stereo encoder, P
RE
provides
the best performance because the stereo encoder that receives the ana-
log output does not have to restore the pre-emphasis. However, if you
cannot defeat the pre-emphasis in your stereo encoder, or if you will use
the analog output for monitoring, set the output
F
LAT
.
If you are sending the analog output of the 8600Si through a digital link
that uses lossy compression (like MPEG, APT-X, or Dolby), set the output
F
LAT
.
Lossy codecs cannot handle pre-emphasized signals.
11. Configure the digital outputs
A) Assign sources to Digital Outputs #1 and #2.
The instructions in this step 11 assume that your unit is an 8600Si and
that you are using Digital Output #2 to drive your analog FM transmitter