Orban OPTIMOD-AM 9300 Effect Processor
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Модель:
OPTIMOD-AM 9300
Дата:
2009
Категория:
Группа:
Описание:
Digital Audio Processor
Информация
The OPTIMOD-AM 9300 Digital Audio Processor
Orban's all-digital 9300 OPTIMOD-AM Audio Processor can help
you achieve the highest possible audio quality in monophonic
AM shortwave, medium wave and long wave broadcasts.
OPTIMOD-AM delivers louder, cleaner, brighter, FM-like audio
with an open, fatigue-free quality that attracts listeners
and holds them. Because all processing is performed by
high-speed mathematical calculations within Motorola
DSP56367 digital signal processing chips, the processing has
cleanliness, quality, and stability over time and
temperature that is unmatched by analog processors.
OPTIMOD-AM 9300 is descended from the industry-standard 9100
and 9200 OPTIMOD-AM audio processors. Thousands of these
processors are on the air all over the world. They have
proven that the “OPTIMOD sound” attracts and keeps an
audience even in the most competitive commercial
environment. Because OPTIMOD-AM incorporates several audio
processing innovations exclusive to Orban products, you
should not assume that it can be operated
in the same way as less sophisticated processors. If you do,
you may get disappointing results.
Take a little time now to familiarize yourself with
OPTIMOD-AM. A small investment of your time now will yield
large dividends in audio quality. OPTIMOD-AM was designed to
deliver a high-quality FM-like sound to the listener's
ear by pre-processing for the limitations of the average car
or table radio (while avoiding audible side effects and
compromises in loudness or coverage). Because
such processing can make audible many defects ordinarily
lost in the usual sea of AM mud, it is very important that
the source audio be as clean as possible. Orban's
publication Maintaining Audio Quality in the Broadcast
Facility (available in .pdf form from ftp.orban.com)
contains valuable information and specific suggestions for
improving the quality of your audio.
The rest of Section 1 explains how OPTIMOD-AM fits into the
AM broadcast facility. Section 2 explains how to install it
and set it up. Section 3 tells how to operate
OPTIMOD-AM. Sections 4 through 6 provide reference
information. For best results, feed OPTIMOD-AM unprocessed
audio. No other audio processing is necessary or desirable.
If you wish to place level protection prior to your studio /
Transmitter link (STL), use an Orban studio level control
system expressly designed for this purpose. (At the
time of this writing, this is the Orban 6300 Multipurpose
Digital audio Processor.) The 6300 can be set up so that it
substitutes for the broadband AGC circuitry in
OPTIMOD-AM, which is then defeated.
Making the Most of the AM Channel
OPTIMOD-AM rides gain over an adjustable range of up to
25dB, compressing dynamic range and compensating for
operator gain-riding errors and for gain inconsistencies in
automated systems.
OPTIMOD-AM increases the density and loudness of the program
material by multiband limiting and multiband
distortion-canceling clipping, improving the consistency of
the station's sound and increasing loudness and definition
without producing audible side effects.
OPTIMOD-AM precisely controls peak levels to prevent
overmodulation.
OPTIMOD-AM compensates for the high- and low-frequency
rolloffs of typical AM receivers with a fully adjustable
program Equalizer providing up to 20dB of high-frequency
boost (at 5 kHz) without producing the side effects en-
countered in conventional processors. This Equalizer can
thus produce extreme preemphasis that is appropriate for
very narrow-band radios. OPTIMOD-AM's
fully parametric low- and mid-frequency equalizers allow you
to tailor your air sound to your precise requirements and
desires. OPTIMOD-AM also fully supports the NRSC standard
preemphasis curve.
Hасто́льная кни́га тип:
Обслуживание и Руководство пользователя
Страницы:
236
Размер:
4.79 Mbytes (5021530 Bytes)
Язык:
english
Пересмотр:
Hасто́льная кни́га ID:
96126.105.03
Дата:
2009 04 01
Качество:
Электронный документ, ни сканирование, очень хорошо читается.
Дата загрузки:
2017 10 31
MD5:
230740983ce008a0818f0bad8f6e67e4
Загрузки:
547
Информация
Version 1.0 Software
Index ... 0-8
Section
1
Introduction
... 1-1
ABOUT THIS
MANUAL ... 1-1
THE OPTIMOD-AM 9300 DIGITAL AUDIO PROCESSOR
... 1-1
Making the Most of the AM
Channel ... 1-2
Controllable and
Adjustable ... 1-2
Versatile
Installation ... 1-3
PRESETS IN
OPTIMOD-AM ... 1-4
Factory Presets
... 1-5
User Presets
... 1-5
I NPUT/OUTPUT CONFIGURATION
... 1-5
Digital AES3 Input/Output
... 1-5
Analog Input/Outputs
... 1-6
Remote Control Interface
... 1-6
Computer Interface
... 1-7
RS-232 Serial Port
...
1-7
RJ45 Ethernet Connector
...
1-7
LOCATION OF OPTIMOD-AM
... 1-7
Optimal Control of Peak Modulation Levels
... 1-7
Best Location for OPTIMOD-AM
... 1-8
If the Transmitter is not
accessible: ...
1-8
If the Transmitter is accessible:
...
1-9
STUDIO-TRANSMITTER LINK
... 1-9
Transmission from Studio to
Transmitter ... 1-9
Digital Links
...
1-10
Analog Microwave STLs
...
1-11
Analog Landline (PTT/Post Office
Line) ...
1-12
AM Transmitters and
Antennas ... 1-12
Bypassing the Transmitter's Internal Filters and
Clippers ... 1-12
Power Supplies
... 1-13
Pre-1965
Transmitters ... 1-14
Asymmetry
... 1-15
System Presets and Transmitter
Equalization ... 1-15
Antenna
System ... 1-17
USING LOSSY DATA REDUCTION IN THE
STUDIO ... 1-17
ABOUT TRANSMISSION LEVELS AND METERING
... 1-18
Meters
... 1-18
Figure 1-1: Absolute Peak Level, VU and PPM Reading
... 1-19
Studio Line-up Levels and Headroom
... 1-19
Transmission
Levels ... 1-20
LINE-UP FACILITIES
... 1-20
Metering of
Levels ... 1-20
Built-in Calibrated Line-up
Tones ...
1-20
Built-in Calibrated Bypass Test
Mode ...
1-20
MONITORING ... 1-21
Modulation Monitors and Their RF Amplifiers
... 1-21
Monitoring on Loudspeakers and
Headphones ... 1-2
EAS TEST
... 1-22
PC CONTROL AND SECURITY P
ASSCODE ... 1-23
WHY THE NORTH AMERICAN NRSC
STANDARD? ... 1-23
AM Stereo Introduces a Preemphasis Dilemma
...
1-23
Figure 1-2: NRSC Modified 75 μs Deemphasis
...
1-24
NRSC Standard Preemphasis and Low-pass Filtering
... 1-24
Figure 1-3: NRSC Lowpass Filter
...
1-25
WARRANTY , USER
FEEDBACK ... 1-26
User
Feedback ... 1-26
LIMITED WARRANTY
... 1-26
INTERNATIONAL WARRANTY
... 1-26
EXTENDED WARRANTY
... 1-27
Section
2
Installation
... 2-1
INSTALLING THE
9300 ... 2-1
Figure 2-1: AC Line Cord Wire
Standard) ...
2-2
Figure 2-2: Wiring the 25-pin Remote Interface Connector
... 2-3
Figure 2-3: 9300 Serial Port Pin
Identification ...
2-4
Figure 2-4: Jumper Positions, Monitor Roll-Off Filter
... 2-4
Figure 2-5: Frequency Response Curves as Function of ROLLOFF
Control, Monitor Rolloff
Filter Strapped for 18
dB/Octave ...
2-5
Figure 2-6: Monitor Rolloff Filter Schematic
Diagram ... 2-6
9300 REAR PANEL
... 2-7
INPUT AND OUTPUT CONNECTIONS
... 2-8
Cable ... 2-8
Connectors
... 2-8
Analog Audio
Input ... 2-8
Analog Audio Outputs
... 2-9
AES3 Digital Input and
Output ... 2-10
Grounding ... 2-10
Power
Ground ... 2-11
Circuit Ground
... 2-11
9300 FRONT PANEL
... 2-11
QUICK SETUP
... 2-13
ANALOG AND DIGITAL I/O SETUP
... 2-20
Figure 2-7: Effect of Lowpass Filter Shape Control on 5 kHz
Lowpass Filter ... 2-23
Overview of Transmitter
Equalization ...
2-28
Description of the TX EQ Controls
...
2-28
Procedure for LF
Equalization ...
2-28
Figure 2-8: Unequalized RF envelope (showing
tilt) ... 2-29
Figure 2-9: RF envelope requiring no tilt
equalization ... 2-29
Figure 2-10: Unequalized RF envelope (showing ringing)
... 2-31
Figure 2-11: RF envelope showing successful HF
equalization ... 2-31
AUTOMATION USING THE 9300’S INTERNAL CLOCK
... 2-34
SECURITY AND PASSCODE PROGRAMMING
... 2-37
To Create a Passcode:
... 2-38
To Edit a
Passcode: ... 2-38
To Delete a Passcode:
... 2-38
To Lock the Front Panel
Immediately: ... 2-39
To Program local lockout:
... 2-3
To Unlock the Front Panel:
... 2-39
Dial-up Networking and the
Passcode ... 2-40
If You Have Forgotten Your
Passcode ... 2-40
REMOTE CONTROL INTERFACE PROGRAMMING
... 2-40
NETWORKING AND REMOTE CONTROL
... 2-42
I NSTALLING 9300 PC REMOTE CONTROL SOFTWARE
... 2-44
Installing the Necessary Windows
Services ... 2-44
Check Hardware
Requirements ... 2-45
Running the Orban Installer Program
... 2-46
Setting Up Ethernet, LAN, and VPN Connections
... 2-46
Conclusion ... 2-47
SYNCHRONIZING OPTIMOD TO A NETWORK TIMESERVER
... 2-47
Table 2-1: NIST-referenced timeservers
(2006) ...
2-48
APPENDIX: SETTING UP SERIAL COMMUNICATIONS
... 2-51
Preparing for Communication through Null Modem Cable
... 2-51
Connecting Using Windows 2000 Direct Serial
Connection: ... 2-51
Connecting Using Windows XP Direct Serial Connection
... 2-56
Preparing for Communication through Modems
... 2-61
Connecting Using Windows 2000 Modem Connection
... 2-61
Connecting using Windows XP Modem Connection
... 2-67
UPDATING YOUR 9300’S
SOFTWARE ... 2-73
Section
3
Operation
... 3-1
9300 FRONT PANEL
... 3-1
SOME AUDIO PROCESSING CONCEPTS
... 3-2
Loudness and density
...
3-3
OPTIMOD-AM
PROCESSING ... 3-4
AM Processing: The Art of Compromise
... 3-4
Shortwave/HF Processing
...
3-6
Working
Together ...
3-6
Fundamental Requirements: High-Quality Source Material and
Accurate
Monitoring ... 3-6
Monitor Rolloff Filter
...
3-7
Reference Radios for the Processing
...
3-7
Modulation
Monitors ...
3-8
More About Audio Processing
... 3-8
Judging
Loudness ...
3-9
Reverberation
...
3-9
CUSTOMIZING THE 9300’S SOUND
... 3-9
Basic Control
... 3-10
Full Control
... 3-11
Advanced
Control ... 3-11
Gain Reduction Metering
... 3-12
To Create or Save a User Preset
... 3-12
F ACTORY PROGRAMMING PRESETS
... 3-13
Description of the Factory Presets
...
3-14
Table 3-1: Factory Programming
Presets ...
3-15
Equalizer CONTROLS
... 3-17
Table 3-2: Equalization Controls
...
3-17
Figure 3-1: HF Receiver Equalizer Curves
...
3-21
AGC CONTROLS
... 3-2
Table 3-3: AGC
Controls ...
3-24
Advanced AGC
Controls ... 3-26
CLIPPER CONTROLS
... 3-28
Table 3-4: Clipper Controls
...
3-28
MULTIBAND DYNAMICS PROCESSING
... 3-30
Table 3-5: Multiband Controls
...
3-30
Table 3-6: MB Attack/Release Controls
...
3-31
Table 3-7: MB Band Mix
Controls ...
3-33
Advanced Multiband
Controls ... 3-34
TEST MODES
... 3-37
Table 3-8: Test Modes
...
3-37
USING THE 9300 PC REMOTE CONTROL SOFTWARE
... 3-37
To set up a new connection:
... 3-38
To initiate communication:
... 3-39
To modify a control
setting: ... 3-39
To recall a
preset: ... 3-40
To save a user preset you have created:
... 3-40
To back up User Presets, system files, and automation files
onto your computer’s
hard
drive: ... 3-40
To restore archived presets, system files, and automation
files: ... 3-41
To modify INPUT/OUTPUT and SYSTEM SETUP:
... 3-43
To modify AUTOMATION:
... 3-43
To group multiple 9300s:
... 3-43
Navigation Using the Keyboard
... 3-43
To Quit the
Program ... 3-43
About Aliases created by Optimod 9300 PC Remote Software
... 3-43
Multiple Installations of Optimod 9300 PC Remote
... 3-44
To share an archived User Preset between 9300s:
... 3-45
Section
4
Maintenance
... 4-1
ROUTINE MAINTENANCE
... 4-1
SUBASSEMBLY REMOVAL AND REPLACEMENT
... 4-2
FIELD AUDIT OF
PERFORMANCE ... 4-5
Section
5
Troubleshooting
... 5-1
PROBLEMS AND POTENTIAL SOLUTIONS
... 5-1
RFI, Hum, Clicks, or Buzzes
...
5-1
Poor Peak Modulation Control
...
5-1
Excessively Low Positive Peak Modulation
...
5-2
Audible Distortion On-Air
...
5-2
Audible Noise on Air
...
5-3
Shrill, Harsh
Sound ...
5-3
Audible Lowpass Filter
Ringing ...
5-3
Dull
Sound ...
5-4
Excessive Occupied Bandwidth
...
5-4
System Will Not Pass Line-Up Tones at 100% Modulation
... 5-5
System Will Not Pass Emergency Alert System (“EAS” USA
Standard) Tones at the
Legally Required Modulation Level
...
5-5
System Receiving 9300’s Digital Output Will Not
Lock ... 5-
General Dissatisfaction with Subjective Sound
Quality ... 5-5
Security Passcode Lost (When Unit is Locked Out)
... 5-6
Connection Issues between the 9300 and a PC, Modem, or
Network ... 5-6
Troubleshooting
Connections ... 5-6
You Cannot Access the Internet After Making a Direct or
Modem Connection to
the 9300:
... 5-7
OS-SPECIFIC TROUBLESHOOTING ADVICE
... 5-8
Troubleshooting Windows 2000 Direct
Connect: ... 5-8
Troubleshooting Windows 2000 Modem
Connect: ... 5-9
Troubleshooting Windows XP Direct Connect:
... 5-10
Troubleshooting Windows XP Modem Connect:
... 5-11
TROUBLESHOOTING IC OPAMPS
... 5-12
TECHNICAL
SUPPORT ... 5-13
F ACTORY SERVICE
... 5-13
SHIPPING INSTRUCTIONS
... 5-13
Section
6
Technical
Data
... 6-1
SPECIFICATIONS
... 6-1
Performance ... 6-1
Installation
... 6-2
CIRCUIT DESCRIPTION
... 6-4
Overview
... 6-4
Control Circuits
... 6-5
User Control Interface and LCD Display Circuits
... 6-5
Input
Circuits ... 6-7
Output
Circuits ... 6-8
DSP
Circuit ... 6-10
Power Supply
... 6-10
ABBREVIATIONS
... 6-11
PARTS LIST
... 6-13
Obtaining Spare Parts
... 6-13
Control Board
... 6-13
Combined Input/Output and DSP (I/O+DSP) Board
... 6-15
Display Board (Front)
... 6-18
Display Board
(Back) ... 6-1