Orban Optimod-AM 9400, Operating Manual, Page: 9 / 295

Headphones .................................................................................................................... 1-24
EAS T
EST
......................................................................................................................1-24
Figure 1-2: NRSC Modified 75 µs De-emphasis.............................................................. 1-25
PC C
ONTROL AND
S
ECURITY
P
ASSCODE
.............................................................................1-25
W
HY THE
N
ORTH
A
MERICAN
NRSC S
TANDARD
?...............................................................1-26
Figure 1-3: NRSC Lowpass Filter ..................................................................................... 1-26
AM Stereo Introduces a Pre-emphasis Dilemma ........................................................... 1-26
NRSC Standard Pre-emphasis and Low-pass Filtering ................................................... 1-27
W
ARRANTY
, U
SER
F
EEDBACK
...........................................................................................1-28
User Feedback........................................................................................................1-28
LIMITED WARRANTY .............................................................................................1-28
INTERNATIONAL WARRANTY ...............................................................................1-28
EXTENDED WARRANTY ........................................................................................1-29
Section 2 Installation
.........................................................................................................................................2-1
I
NSTALLING THE
9400 .......................................................................................................2-1
Figure 2-1: AC Line Cord Wire Standard.......................................................................... 2-2
Figure 2-2: Wiring the 25-pin Remote Interface Connector ........................................... 2-4
Figure 2-3: 9400 Serial Port Pin Identification................................................................. 2-4
Figure 2-4: Jumper Positions, Monitor Roll-Off Filter ..................................................... 2-5
Figure 2-5: Frequency Response Curves as Function of
R
OLLOFF
Control, Monitor Rolloff
Filter Strapped for 18 dB/Octave...................................................................................... 2-6
Figure 2-6: Monitor Rolloff Filter Schematic Diagram .................................................... 2-7
9400 R
EAR
P
ANEL
...........................................................................................................2-7
I
NPUT AND
O
UTPUT
C
ONNECTIONS
.....................................................................................2-8
Cable.........................................................................................................................2-8
Connectors ...............................................................................................................2-8
Analog Audio Input.................................................................................................2-9
Analog Audio Outputs ............................................................................................2-9
AES3 Digital Input and Output.............................................................................2-10
Grounding..............................................................................................................2-11
Power Ground........................................................................................................2-11
Circuit Ground .......................................................................................................2-11
9400 F
RONT
P
ANEL
.......................................................................................................2-12
S
TUDIO
L
EVEL
C
ONTROLLER
I
NSTALLATION
(
OPTIONAL
) .......................................................2-13
If you are using Orban 8200ST external AGC ......................................................2-14
Figure 2-7: 8200ST Jumper Settings (*Factory Configuration) ..................................... 2-15
Q
UICK
S
ETUP
.................................................................................................................2-16
A
NALOG AND
D
IGITAL
I/O S
ETUP
.....................................................................................2-23
Figure 2-8: Effect of the LPF Shape Control with F = 5.0 kHz....................................... 2-27
Overview of Transmitter Equalization........................................................................... 2-32
Description of the TX EQ Controls ................................................................................. 2-32
Procedure for LF Equalization........................................................................................ 2-32
Figure 2-9: Unequalized RF envelope (showing tilt)..................................................... 2-33
Figure 2-10: RF envelope requiring no tilt equalization............................................... 2-33
Figure 2-11: Unequalized RF envelope (showing ringing) ........................................... 2-35
Figure 2-12: RF envelope showing successful HF equalization..................................... 2-35
A
UTOMATION
U
SING THE
9400’
S
I
NTERNAL
C
LOCK
............................................................2-39
S
ECURITY AND
P
ASSCODE
P
ROGRAMMING
.........................................................................2-42
To Create a Passcode: ............................................................................................2-43