2-28
INSTALLATION ORBAN
MODEL
9400
filter cutoff frequency. By making the transition between the passband and
stopband progressively more rounded and gentle, each step trades off duller
sound against less ringing. See Figure 2-8.
D)
Hold down the soft key under
H
IGHPASS AND S
elect the highpass filter cutoff
frequency you need by turning the knob.
OPTIMOD-AM can be programmed for any highpass filter cutoff fre-
quency from 50 to 100Hz in 10Hz steps. Default is 50 Hz. See the text in
step (6.B) on page 2-18 for guidance on where to set the frequency. Re-
fer to the text in step (B) on page 2-26 regarding global system settings
vs. setting in presets.
E)
Set the lowpass and highpass filter cutoff frequencies for any other Transmis-
sion Presets you will be using. Note that each preset has an independent set-
ting for lowpass cutoff, lowpass shape, highpass cutoff, and asymmetry.
a)
Press
E
SC
.
b)
Press
the soft key labeled with the transmission preset you wish to adjust.
c)
Adjust the filter frequencies as you did in the steps above.
8.
Configure analog output(s).
[Skip this step if you will not be using the analog output(s).]
A)
Navigate to
S
ETUP
>
IO
C
ALIB
>
O
UTPUT
>
A
NALOG
1.
If necessary, use the
N
EXT
button to scroll horizontally.
B)
Set the
S
OURCE
to
AM
P
ROC
,
HD
P
ROC
, or
M
ONITOR
.
AM
P
ROC
feeds the selected output with the output of the processing
chain for analog AM transmitters.
HD
P
ROC
feeds the selected output
with the output of the processing chain for HD Radio or other digital
transmission channels like netcasts.
C)
Set the
L
OAD
control to
B
RIDGING
or
600
O
HMS
. The normal setting is
B
RIDGING
.
Only set this control to
600
O
HMS
if your transmitter has been verified to have
a 600-ohm input impedance.
Functionally, the control increases the output level by 4.0 dB when the
control is changed from
B
RIDGING
to
600
OHM
. This compensates for the 4
dB loss in the 9400’s EMI filtering network when this network is loaded
by 600 ohms.
If you are using Analog Output #2, navigate to Navigate to
S
ETUP
>
IO
C
ALIB
>
O
UTPUT
>
A
NALOG
2
and
repeat this step.
9.
Configure digital output(s).
[Skip this step if you will not be using the digital output(s).]
A)
Navigate to
S
ETUP
>
IO
C
ALIB
>
O
UTPUT
>
D
IGITAL
1.
If necessary, use the
N
EXT
button to scroll horizontally.
B)
Set the
S
OURCE
to
AM
P
ROC
,
HD
P
ROC
, or
M
ONITOR
.
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...