OPTIMOD-AM DIGITAL
INSTALLATION
2-39
vacuum-tube plate-modulated design) may fail, may have their tube life
shortened, etc. Such transmitters are simply incapable of supplying the
average power demands of OPTIMOD-AM processing regardless of
transmitter equalization. If the station is to achieve the full benefits of
OPTIMOD-AM processing, these transmitters must be either repaired,
modified, or replaced.
16.
If you will be using other Transmission Presets, repeat steps 11 through
15 to set them.
Substitute the name of the Transmission Preset under adjustment for “
TX1/D
AY
”
in these steps.
Do not forget the set the
L
OWPASS
,
H
IGHPASS
, and
P
OS
P
EAK
controls for each
Transmission Preset that you use.
17.
Set Digital Radio output level.
A)
Navigate to
S
ETUP
>
IO
C
ALIB
>
O
UTPUT
>
D
IGITAL
[
X
]
(where “x” is the output
you are using to drive the digital radio transmitter.
B)
Set the output level to match the clipping level of the digital radio input. Re-
fer to the transmitter manufacturer’s instructions to obtain the correct level.
IMPORTANT:
Do not use the output level control to turn down the loud-
ness of the digital channel if it is louder than the analog channel on an
HD AM receiver. Instead, turn down the
HD
L
IMITER
D
RIVE
control in the
on-air preset and save the resulting edited preset as a User Preset. Using
the
HD
L
IMITER
D
RIVE
control minimizes the amount of peak limiting that
the 9400 does, thereby minimizing stress on the codec.
18.
End I/O setup.
If you are using a external AGC and you temporarily set the
E
XT
AGC
to
NO
in
step 1 on page 2-23, set the
E
XT
AGC
to
Y
ES
.
19.
Select a processing preset.
See step 15 on page 2-22.
Automation Using the 9400’s Internal Clock
1.
If you have not already done so, set the system clock.
[You can also set the clock automatically via PC Remote or the Internet. See
Synchronizing Optimod to a Network Time Server
starting on page 2-55.]
A)
Navigate to
S
ETUP
>
N
EXT
>
T
IME
D
ATE
A
ND
ID
>
S
ET
T
IME
.
a)
Set hours and minutes.
Summary of Contents for Optimod-AM 9400
Page 1: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Page 7: ...Operating Manual OPTIMOD AM 9400 Digital Audio Processor Version 1 2 Software...
Page 52: ......
Page 204: ......
Page 232: ......
Page 260: ......
Page 261: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 29...
Page 267: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 35 CPU Module...
Page 273: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 41 RS232 BOARD PARTS LOCATOR...
Page 275: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 43 8300 POWER SUPPLY PARTS LOCATOR...
Page 284: ...6 52 TECHNICAL DATA ORBAN MODEL 9400 DSP BOARD PARTS LOCATOR DRAWING 32170 000 14...
Page 292: ...6 60 TECHNICAL DATA ORBAN MODEL 9400 DISPLAY BOARD PARTS LOCATOR...
Page 293: ...OPTIMOD AM DIGITAL TECHNICAL DATA 6 61 DISPLAY BOARD...