How to check if the 19 kHz frequency is out-of-tolerance in Orban Music Equipment?
First, verify that a problem really exists by using a second frequency-measuring device and/or verifying the problem with a monitoring service.
Why is there delay in talent's headphones when using Orban Music Equipment?
Dedicate an output to low-delay Monitor mode and use this to drive headphones.
Why does the HD output sound too bright on my Orban OPTIMOD-FM 8500 Music Equipment?
Enable adjustment of the HD output’s spectral balance by putting the on-air preset into INDEPENDENT mode.
How to fix harsh sibilance (“Ess” Sounds) in the HD Channel of Orban OPTIMOD-FM 8500 Music Equipment?
Adjust the HD DE-ESS control and/or activate the HD channel’s band 5 compressor.
General| Brand | Orban |
|---|---|
| Model | OPTIMOD-FM 8500 |
| Category | Music Equipment |
| Language | English |
Manual for the OPTIMOD-FM 8500 Digital Audio Processor.
Details on different OPTIMOD-FM 8500 models and their features.
Crucial safety warnings regarding electrical shock and moisture.
Comprehensive safety guidelines for operating the appliance.
Specific safety advice for European customers regarding grounding.
Safety guidelines provided in German.
Safety guidelines provided in French.
Safety guidelines provided in Spanish.
Safety guidelines provided in Italian.
Introduces the manual's content and search capabilities.
Guidelines to avoid reconditioning charges when returning a unit.
Procedures for packing the unit for shipping or return.
Advice for resolving installation or operation problems.
Regulatory compliance information regarding RF energy emissions.
Crucial information about static electricity damage prevention.
Details on manual navigation, hyperlinks, table of contents, and search.
Overview of the OPTIMOD-FM 8500's capabilities and advantages.
Description of the unit's interface, LCD, and navigation controls.
Discussion of the unit's precise peak control features.
Details on input/output options, sample rates, and sync inputs.
Overview of the unit's analog and AES3 digital input/output capabilities.
Explanation of processing structures and their simultaneous operation.
Information on remote control options via GPI, serial port, and modem.
Details on upgrading the 8500FM to 8500 functionality or to Optimod FM 8600.
Explanation of factory and user presets for customizing sound.
Details on AES3 standard digital audio connections and sample rate converters.
Description of analog input and output connectors and impedance.
Information on the two unbalanced analog baseband outputs and ground lift switch.
Details on SCA inputs, mixing, and pilot tone reference output.
Description of the optically isolated inputs for controlling functions.
Information on connecting to PCs via serial port and Ethernet.
Communication via modem or direct connection through RS-232 ports.
Connecting to networks supporting TCP/IP protocol.
Guidance on optimal placement for peak modulation control.
Discussion of various Studio-Transmitter Link (STL) types and their use.
Information on using PCM and lossy data reduction digital links.
Usage of composite baseband microwave STLs for stereo baseband signals.
Considerations for using dual microwave STLs, including noise immunity and phase matching.
Discussion of analog landline quality and its impact on audio.
Instructions for integrating external AGC with the 8500.
Discussion of preventing and reducing overshoot in STLs and exciters.
How lossy data reduction algorithms affect audio and potential issues.
Explanation of transmission levels and different meter types.
Details on metering levels, output levels, and line-up tones.
How to use the bypass test mode for passing line-up tones.
Explanation of low-delay monitoring options and their trade-offs.
Procedures for placing the 8500 in Bypass mode for EAS broadcasts.
Accessing the OPTIMOD-FM via network, modem, or direct connection with PC.
Information on product warranty, user feedback, and service.
Overview of the installation process, estimated time, and steps involved.
Procedures for unpacking, inspecting for damage, and saving packing materials.
Steps to verify and set the voltage select switch, fuse, and power cord.
Instructions for setting the ground lift switch for chassis ground or isolation.
Guidelines for rack mounting, ground connection, and heat considerations.
Reference to hookup and grounding information for various connections.
Information on programming the opto-isolated GPI remote control interface.
Details on programming tally outputs to indicate operational and fault conditions.
Instructions for connecting to a PC via serial or Ethernet network.
Description of the rear panel features including ground lift, voltage select, fuses, and ports.
Details on connecting the 8500 to existing transmitter remote control via DB-25 connector.
Description of the RJ45 Ethernet port for network connections.
Details on AES3 standard digital audio connections and sample rate converters.
Description of analog input and output connectors and impedance.
Information on the two composite outputs and their level controls.
Details on SCA inputs and their jumper configuration for pilot reference.
Details on cable and connector specifications for audio connections.
Details on nominal input levels, peak input level, and electronically balanced input.
Description of electronically balanced and floating outputs and their impedance.
Information on AES3 standard digital inputs/outputs, sample rate converters, and connectors.
Details on composite outputs, subcarrier inputs, and ground lift switch.
General grounding practices for audio studios to prevent noise and faults.
Proper grounding techniques for chassis and safety.
Connecting circuit and chassis grounds, and handling unbalanced exciter inputs.
Description of front panel controls: Headphone Jack, Level Control, Enter, Locate, Escape, and Control Knob.
Guidance on installing external AGC units like Optimod-PC 1101 and Optimod 6300.
A guided procedure for setting up the 8500 for analog FM facilities.
Instructions on how to navigate to and use the System Setup menu.
Step-by-step guide for configuring the 8500's basic settings.
Instructions for setting the unit's clock and date, including Daylight Saving Time.
Configuring pre-emphasis settings based on country requirements.
Instructions for setting the external AGC mode to YES or NO.
Procedures for adjusting analog and digital input reference levels for AGC.
Setting analog and digital output pre-emphasis and sample rates.
Setting analog output pre-emphasis and digital output sample rate and word length.
Settings for digital output #1's pre-emphasis, sample rate, word length, and dither.
Adjusting output levels to achieve target modulation using program material or test tones.
Detailed setup for analog and digital inputs/outputs and AGC.
Procedures for calibrating the clip level to maximize signal-to-noise ratio and prevent clipping.
Adjusting CLIP LEVEL based on program peaks shown on input meters.
Using a system's 100% calibration tone for adjusting CLIP LEVEL.
Using the 464A to produce clipped waveforms for clear peak clipping indication.
Setting the reference level to match studio operators' peak material indication.
Setting reference levels using a tone, verifying external AGC, and adjusting reference level for AGC meters.
Setting reference levels using program material and adjusting AGC meters.
Adjusting the right channel gain for correct left/right channel balance.
Setting reference levels and right balance for digital inputs.
Configuring the unit to fall back to analog input when digital signal is missing.
Setting analog output pre-emphasis and digital output sample rate and word length.
Settings for digital output #1's pre-emphasis, sample rate, word length, and dither.
Adjusting output levels to achieve target modulation using program material or test tones.
Configuring output meters to display pre-emphasized or de-emphasized signals.
Adjusting output polarity for analog FM processing to match transmitter settings.
Setting composite output level, modulation mode, and pilot level.
Adjusting pilot level and diversity delay settings for optimal modulation and crossfades.
Configuring outputs for low-delay monitoring and handling audio/carrier failures.
Instructions for defeating the final clipper to prevent double clipping.
Configuring the 8500 to switch inputs based on detected silence.
Setting silence delay, analog fallback, and pilot reference phase relationship.
Finalizing analog and digital I/O setup and resetting external AGC.
Choosing and auditioning factory presets, and customizing them with LESS-MORE.
Setting a station identifier for the unit.
Finalizing the quick setup process, including ITU-R 412 controller activation if required.
Setting the multiplex power threshold to manage ITU-R 412 compliance.
Configuring external AGC and setting input levels for optimal AGC operation.
Procedures for adjusting analog and digital input reference levels for AGC.
Choosing the input source (analog, digital, or DIG+J17) for normal programming.
Connecting to the 8500's Ethernet or Serial 1 ports via TCP/IP for remote control.
Using PuTTY to control the 8500 directly via its Serial 1 or Ethernet port.
Scripting network connections and commands using .cmd and .txt files.
Using Netcat.exe for network connections and automated control.
Tables of commands and responses for administrative tasks.
Command to restore factory defaults, including deleting user presets and automation.
Command to assign an ALL SCREENS passcode for accessing security screens.
Procedure to set the IP address for network connections.
Procedure to set the subnet mask assigned by the network administrator.
Procedure to specify the gateway address for crossing subnets.
Procedure to set the network port for PC Remote application.
Procedure to set the terminal port for PC Remote connection.
Applies only for modem connections (via 8500’s Serial 1 port).
Setting the interface type to Modem or Direct connection.
Command to recall factory or user presets, with optional passcode.
Controlling analog diversity delay for specific outputs.
Setting the analog diversity delay time for main and backup transmission chains.
Adjusting output polarity to match transmitter settings for HD Radio installations.
Retrieving status information including input lock, contact closures, and tally outputs.
Retrieving the name of the active processing preset.
Displaying technical parameters and status information from the 8500.
Programming the opto-isolated GPI remote control interface functions.
Mapping GPI inputs to functions like preset recall or mode switching.
Setting up multi-level passcodes for front panel and PC Remote access.
Creating a new passcode and assigning access privileges.
Modifying or removing existing passcodes, with restrictions.
Procedure to unlock the front panel after lockout by entering a passcode.
How the interface behaves when the unit is locked out.
Information on the default ADMIN passcode and its ALL SCREENS privileges.
How passcodes authorize PC Remote connections and ensure security.
How passcodes affect software updates and the security implications.
Methods to regain access if the ALL SCREENS passcode is forgotten.
Setting IP address, Subnet Mask, and Gateway for network connections.
Configuring network settings and connecting the null modem cable for direct serial connection.
Configuring network settings and modem for serial port 1 modem connection.
Procedure for installing the PC Remote software and necessary Windows services.
Minimum PC hardware and software requirements for PC Remote connection.
Configuring network parameters for Ethernet, LAN, and VPN connections.
Automatically synchronizing the unit's clock to a network timeserver.
Instructions for updating the 8500's software using PC Remote.
Steps to troubleshoot direct serial connections in Windows 2000.
Steps to troubleshoot modem connections in Windows 2000.
Steps to troubleshoot direct serial connections in Windows XP.
Steps to troubleshoot modem connections in Windows XP.
Guidance on diagnosing and troubleshooting issues with IC opamps.
Contact information and resources for technical assistance.
Procedures and guidelines for returning products for factory service.
Detailed instructions for packing and shipping the unit for service.
Provides detailed technical specifications and circuit descriptions.
Specifications for measurements from analog input to various outputs.
Technical data related to the unit's installation parameters.
Details on defeasible analog FM processing delay and minimum processing delay.
Configuration, impedance, nominal/maximum input levels, connectors, A/D conversion, and filtering.
Configuration, source impedance, load impedance, output level, signal-to-noise, crosstalk, connectors, D/A conversion, and filtering.
Configuration, sampling rate, connector, input reference level, J.17 de-emphasis, and filtering.
Configuration, sample rate, word length, connector, output level, filtering, and frequency response.
Matching delays between FM and HD channels for receiver crossfades.
Synchronization of AES3 signals to external reference or digital input.
Details on composite outputs, source/load impedance, output level, pilot stability, D/A conversion, and signal-to-noise.
Summing SCA inputs into composite outputs and pilot reference functionality.
Detailed description of user-serviceable circuits and component-level explanations.
System overview identifying circuit sections and their purpose.
Description of the SC520 microprocessor and its control functions.
How users interact with the unit's functionality via controls and LCD.
Circuitry for interfacing analog and digital inputs to the DSP.
Analog input signal processing, scaling, and buffering.
Details of the stereo 24-bit sigma-delta A/D converter.
Integrated receiver and sample rate converter for digital audio signals.
Circuitry interfacing DSP to analog and digital audio outputs.
Description of the stereo 24-bit delta-sigma D/A converter.
Amplification and buffering of analog signals for output connectors.
Integrated output SRC and AES3 transmitter for digital audio signals.
Circuitry for composite D/A conversion, reconstruction filter, and attenuators.
List of abbreviations used in the manual for clarity.
List of parts used in the 8500, including surface-mount components.
Information on ordering replacement parts and spare parts kits.
List of components and identifiers for the Base Board.
List of components and identifiers for the CPU Module.
List of components and identifiers for the RS-232 Board.
List of components and identifiers for the Power Supply.
List of components and identifiers for the I/O Board.
List of components and identifiers for the pre-V3 DSP Board.
List of components and identifiers for the V3 DSP Board.
List of components for LCD Carrier and Headphone/Encoder boards.
List of components for the Front-Panel Interface Board.
Visual representation of the DSP signal processing flow.
References to drawings reflecting unit construction and component locations.
Description of front panel controls: Headphone Jack, Level Control, Enter, Locate, Escape, and Control Knob.
Basic concepts of audio processing: peak-to-average ratio, compression, limiting, and clipping.
Overview of signal flow, dual-mono architecture, and key processing blocks.
Flexibility in customizing sound via Basic, Intermediate, and Advanced Modify levels.
Explanation of processing structures: Two-Band, Five-Band, and Ultra-Low Latency Five-Band.
List of factory presets with descriptions and LESS-MORE settings.
Detailed controls for the Two-Band structure's dynamics section.
Summary of equalization controls available for the Five-Band structure.
Controls for stereo enhancement algorithms and modes.
Controls for the Automatic Gain Control system, common to two-band and five-band structures.
AGC controls found only in the Advanced Modify screen.
Common clipper controls for two-band and five-band structures.
Sets the operation of the bass clipper to HARD, LL HARD, MEDIUM, or SOFT.
Activates or defeats look-ahead functionality in the multiband compressor/limiter.
Sets the increment by which MB LIMIT THR is reduced when speech is detected.
Forcing the 8500 into 'speech' or 'music' mode via GPI.
Details on HD Radio output processing, independent controls, and FMHD coupling.
Controls specific to HD processing with no FM analog counterparts.
Limits integrated multiplex power according to ITU-R 412 standards.
Allows switching between OPERATE, BYPASS, and TONE modes.
Guidance on adjusting bass sound, considering psychoacoustics and tradeoffs.
Accessing and controlling the 8500 via PC Remote software.
Steps for establishing a connection between PC Remote and the 8500.
Adjusting processing parameters using the EDIT menu.
Selecting and activating factory or user presets from the FILE menu.
Saving custom preset configurations to the 8500's memory.
Procedure for backing up presets, system files, and automation to a PC.
Loading archived files from PC to the 8500 or copying between Optimods.
Organizing multiple 8500 units into groups within the PC Remote software.
Using standard Windows conventions for navigation and control adjustment.
Exiting the PC Remote software using standard Windows conventions.
Information on creating and managing 8500 aliases for PC Remote connections.
Considerations for installing multiple versions of 8500 PC Remote software.
Recommended minimal maintenance tasks for the 8500.
Detailed procedures for removing and replacing internal circuit boards.
Procedure for auditing performance using test equipment.
Common issues and their corresponding solutions for the OPTIMOD-FM.
Troubleshooting steps for radio frequency interference and noise issues.
Troubleshooting steps for low on-air levels, potentially related to ITU412 controller.
Diagnosing issues with peak modulation control and on-air loudness.
Troubleshooting steps for audible distortion, checking source material and subjective adjustments.
Addressing audible noise, possibly caused by excessive compression or STL.
Troubleshooting whistles, likely caused by analog input/output oscillation.
Diagnosing interference from stereo signals into subcarriers.
Troubleshooting shrill or harsh sound, possibly due to excessive HF boost.
Addressing dull sound issues, possibly due to source material or flat output settings.
Explanation of why processing reduces peak levels of sine waves.
Troubleshooting digital output lock issues by checking sample rates and modes.
Troubleshooting 19 kHz pilot frequency issues, suggesting contacting customer service.
Diagnosing issues with L-R nulling, often caused by phase shifts before input.
Solutions for talent delay issues using low-delay monitoring or UL presets.
Adjusting HD output spectral balance by enabling INDEPENDENT mode.
Taming harsh sibilance using HD DE-ESS control or band 5 compressor.
Matching HD and FM levels by adjusting the HD LIMIT DR control.
Correcting crossfade loudness drops caused by reversed polarity or phase cancellation.
Troubleshooting HD bandwidth limitations, possibly due to sample rate settings.
Checking if the unit is an 8500FM and the possibility of upgrading.
Achieving best results by understanding controls and material.
Troubleshooting steps specific to Windows 2000 and XP operating systems.
Steps to troubleshoot direct serial connections in Windows 2000.
Steps to troubleshoot modem connections in Windows 2000.
Steps to troubleshoot direct serial connections in Windows XP.
Steps to troubleshoot modem connections in Windows XP.
Guidance on diagnosing and troubleshooting issues with IC opamps.
Key performance and installation specifications for the OPTIMOD-FM.
Specifications for measurements from analog input to various outputs.
Technical data related to the unit's installation parameters.
Details on defeasible analog FM processing delay and minimum processing delay.
Configuration, impedance, nominal/maximum input levels, connectors, A/D conversion, and filtering.
Configuration, source impedance, load impedance, output level, signal-to-noise, crosstalk, connectors, D/A conversion, and filtering.
Configuration, sampling rate, connector, input reference level, J.17 de-emphasis, and filtering.
Configuration, sample rate, word length, connector, output level, filtering, and frequency response.
Matching delays between FM and HD channels for receiver crossfades.
Synchronization of AES3 signals to external reference or digital input.
Details on composite outputs, source/load impedance, output level, pilot stability, D/A conversion, and signal-to-noise.
Summing SCA inputs into composite outputs and pilot reference functionality.
Detailed description of user-serviceable circuits and component-level explanations.
System overview identifying circuit sections and their purpose.
Description of the SC520 microprocessor and its control functions.
How users interact with the unit's functionality via controls and LCD.
Circuitry for interfacing analog and digital inputs to the DSP.
Analog input signal processing, scaling, and buffering.
Details of the stereo 24-bit sigma-delta A/D converter.
Integrated receiver and sample rate converter for digital audio signals.
List of abbreviations used in the manual for clarity.
List of parts used in the 8500, including surface-mount components.
Information on ordering replacement parts and spare parts kits.
List of components and identifiers for the Base Board.
List of components and identifiers for the CPU Module.
List of components and identifiers for the RS-232 Board.
List of components and identifiers for the Power Supply.
List of components and identifiers for the I/O Board.
List of components and identifiers for the pre-V3 DSP Board.
List of components and identifiers for the V3 DSP Board.
List of components for LCD Carrier and Headphone/Encoder boards.
List of components for the Front-Panel Interface Board.
Visual representation of the DSP signal processing flow.
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