Orban Optimod-FM 8300 Operating Manual
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Orban Optimod-FM 8300 Operating Manual

Digital audio processor
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Operating Manual
OPTIMOD-FM
8300
Digital Audio Processor
Version 2.1 Software

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Summary of Contents for Orban Optimod-FM 8300

  • Page 1 Operating Manual OPTIMOD-FM 8300 Digital Audio Processor Version 2.1 Software...
  • Page 2 European Parliament, this product must not be discarded into the municipal waste stream in any of the Member States. This product may be sent back to your Orban dealer at end of life where it will be reused or recycled at no cost to you.

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS All the safety and operating instructions should be read before the appliance is operated. Retain Instructions: The safety and operation instructions should be retained for future reference. Heed Warnings: All warnings on the appliance and in the operating instructions should be adhered to. Follow Instructions: All operation and user instructions should be followed.
  • Page 4 Safety Instructions (German) Gerät nur an der am Leistungsschild vermerkten Spannung und Stromart betreiben. Sicherungen nur durch solche, gleicher Stromstärke und gleichen Abschaltverhaltens ersetzen. Sicherungen nie überbrücken. Jedwede Beschädigung des Netzkabels vermeiden. Netzkabel nicht knicken oder quetschen. Beim Abziehen des Netzkabels den Stecker und nicht das Kabel enfassen.
  • Page 5 (2) Check the other sections of the Manual (consult the Table of Contents and Index) to see if there might be some sug- gestions regarding your problem. (3) After reading the section on Factory Assistance, you may call Orban Customer Service for advice during normal Cali- fornia business hours. The number is (1) 510 / 351-3500.
  • Page 6 All trademarks are property of their respective companies. This manual is part number 96116.210.03. Published April 2009. © Copyright Orban 8350 East Evans Suite C4, Scottsdale, AZ 85260 USA Phone: (1) (480) 403-8300; Fax: (1) (480) 403-8301; E-Mail: custserv@orban.com; Site: www.orban.com...
  • Page 7 Operating Manual OPTIMOD-FM 8300 Digital Audio Processor Version 2.1 Software...

  • Page 8: Table Of Contents

    Digital Links ........................1-13 Composite Baseband Microwave STLs................1-14 Dual Microwave STLs...................... 1-14 Analog Landline (PTT / Post Office Line)............... 1-16 Using the Orban 8100AST (or 8100A/ST) External AGC with the 8300 .....1-16 STL and Exciter Overshoot ..................1-16 ..............1-17 SING...
  • Page 9 8300 F .......................2-11 RONT ANEL ) ............2-13 TUDIO EVEL ONTROLLER NSTALLATION OPTIONAL If you are using Orban 8200ST external AGC ............2-13 Figure 2-4: 8200ST Jumper Settings (*Factory Configuration) ........2-14 .........................2-16 UICK ETUP I/O S ..................2-24 NALOG AND IGITAL ETUP 8300’...
  • Page 10 Connecting Using Windows XP Direct Serial Connection ........2-52 Preparing for Communication through Modems ..........2-57 Connecting Using Windows 2000 Modem Connection ........2-57 Connecting using Windows XP Modem Connection ..........2-63 8300’ .................2-69 PDATING YOUR OFTWARE Section Operation ............................3-1 8300 F ......................3-1 RONT ANEL ..................3-3 NTRODUCTION TO...
  • Page 11 Table 3-8: MB Attack / Release Controls ................ 3-47 Table 3-9: MB Band Mix Controls................... 3-48 Advanced Multiband Controls................3-53 8300’ HD / D ............3-55 BOUT THE IGITAL ADIO ROCESSING Delay Difference between Digital-Channel and FM Outputs ......3-56 Table 3-10: HD Audio Controls..................3-56 HD I/O Setup Controls ...................3-56 HD Audio Controls....................3-56 ITU-R M...
  • Page 12 Audible Noise on Air ......................5-2 Whistle on Air, Perhaps Only in Stereo Reception ............5-3 Interference from stereo into SCA .................. 5-4 Fig. 5-1: Typical 8300 baseband spectrum with heavy processing, 0-100 kHz....5-4 Shrill, Harsh Sound ......................5-4 Dull Sound ........................
  • Page 13 Function Description Drawing Page Chassis Circuit Board Locator and Basic In- Top view 6-29 terconnections (not to scale) Base Board Glue logic; supports CPU module Parts Locator 6-30 and RS-232 daughterboard. Drawing Contains: System Connections Schematic 1 of 4 6-31 CPU module interface Schematic 2 of 4 6-32...
  • Page 14 Power Distribution Schematic 6 of 7 6-58 No-Connects Schematic 7 of 7 6-59 Front-Panel LCD, LEDs, Buttons, Parts Locator 6-60 Display Board and Rotary Encoder Drawing Schematic 1 of 1 6-61 DSP Block Shows signal processing 6-62 Diagram...

  • Page 15: Index

    Index meter 2- · 12, 2 ratio control 3- · 30 window release control 3- · 30 window size control 3- · 30 19 K Ref control 2- · 10 AGC 3- · 6 allpass crossover 3- · 32 analog baseband outputs 1- · 7 analog I/O 1- ·...
  • Page 16 LCD display 6- · 7 baseband spectrum user control interface 6- · 7 control 3- · 6 circuit description 6- · 5 baseband spectrum 5- · 4 CIT25 2- · 8 Basic Modify 3- · 11 classical 3- · 18, 38 Bass cleaning front panel 4- ·...
  • Page 17 replacing 4 · 5 computer interface distortion RS-232 2- · 5 aliasing 3- · 8 serial 2- · 5 caused by poor source material 3- · 4 computer interface 1- · 9 excessive 5- · 6 connecting on material with strong HF content 3- · 37 through Win XP direct serial 2- ·...
  • Page 18 power 2- · 11 Firmware grounding 2- · 10 updating 8500 2- · 69 grouping 8300s 3- · 68 five-band attack time controls 3- · 53 band coupling controls 3- · 51 band on/off switch 3- · 53 band threshold control 3- · 49 Haas threshold 3- ·...
  • Page 19 input level line-up tones line-up 1- · 18 system will not pass at 100% modulation 5- · input meters 1- · 19 line-up tones 1- · 20 input meters 3- · 2 LLHard mode 3- · 36 input selector location 1- · 10 I/O setup 2- ·...
  • Page 20 2- · 35 Orban installer program 2- · 44 oldies 3- · 19 PC board locator diagram 6- · 29 Orban 222 stereo enhancer 3- · 26 PC control output security 1- · 22 PC hardware requirements 2- · 43 analog output level trim adjustment 4- ·...
  • Page 21 multiple coexisting versions 3- · 69 AGC 3- · 6 upgrading versions 3- · 69 block diagram 6- · 62 PC Remote Software 3- · 62 distortion in 3- · 3 equalization 3- · 7 peak control criteria 1- · 10 input conditioning 3- ·...
  • Page 22 testing 4- · 13 quick 2- · 16 setup button 2- · 12 wiring 2- · 4 remote interface connector 2- · 5 setup button 3- · 1 Remote Software 2- · 39, 43, 69 shelving equalizer resolution bass, slope of 3- · 7 shipping instructions 5- ·...
  • Page 23 system setup unpacking 2- · 1 Updating software 2- · 69 quick setup 2- · 16 System Setup screen 2- · 16 upgrading software 1- · 5 user presets archiving 3- · 14 creating 3- · 6, 11, 13 user presets 1- · 6 talk 3- ·...

  • Page 25: Section 1 Introduction

    Because OPTIMOD-FM 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.

  • Page 26: User-Friendly Interface

    Orban studio level control system expressly designed for this purpose. (At the time of this writing, this is the Orban 8200ST OPTIMOD-Studio Compressor / Limiter / HF Limiter / Clipper.) The 8200ST can be adjusted so that it substitutes for the broad- band AGC circuitry in OPTIMOD-FM, which is then defeated.

  • Page 27: Flexible Configuration

    OPTIMOD-FM DIGITAL INTRODUCTION Flexible Configuration  The 8300 includes analog and AES3 digital inputs and outputs. Both digital in- put and digital output are equipped with sample-rate converters and can oper- ate at 32 kHz, 44.1 kHz, 48, 88.2, and 96 kHz sample rates. The pre-emphasis status and output levels are separately adjustable for the analog and digital out- puts.

  • Page 28: Adaptability Through Multiple Audio Processing Structures

    A special Two-Band preset cre- ates a no-compromise “Protect” function that is functionally similar to the “Pro- tect” structures in earlier Orban digital processors. The Optimum Five-Band and the Two-Band structures can be switched via a mute-free crossfade; the Low La- tency Five-Band structure causes a very brief audio mute when activated.

  • Page 29: Controllable

    OPTIMOD-FM contains a built-in line-up tone generator, facilitating quick and accurate level setting in any system.  OPTIMOD-FM's software can be upgraded by running Orban-supplied downloadable upgrade software on a PC. The upgrade can occur remotely through the 8300’s Ethernet port or serial port (connected to an external mo- dem), or locally (by connecting a Windows®...

  • Page 30: User Presets

    INTRODUCTION ORBAN MODEL 8300 ing the L control to adjust OPTIMOD-FM for less or more processing. The factory presets are listed and described starting on page 3-16. Factory Presets are stored in OPTIMOD-FM’s non-volatile memory and cannot be erased. You can change the settings of a Factory Preset, but you must then store those settings as a User Preset, which you are free to name as you wish.

  • Page 31: Digital Aes3 Left/Right Input/Output

    OPTIMOD-FM DIGITAL INTRODUCTION Digital AES3 Left/Right Input/Output The digital input and output conform to the professional AES3 standard. They both have sample rate converters to allow operation at 32, 44.1, 48, 88.2, and 96 kHz sample frequency. The left/right digital input is on one XLR-type female connector on the rear panel; the left/right digital output is on one XLR-type male connector on the rear panel.

  • Page 32: Subcarriers

    INTRODUCTION ORBAN MODEL 8300 ance and can drive up to 8V peak-to-peak into 7in parallel with up to 0.047F (100ft / 30m of RG-59 / U cable) before any significant audible performance degra- dation occurs. See the footnote on page 1-12 and refer to Figure 2-3 on page 2-9.

  • Page 33: Computer Interface

    OPTIMOD-FM DIGITAL INTRODUCTION mono-from-sum audio input. This also determines the feed to the entire process- ing chain so that facilities that do not use the 8300’s stereo encoder can change stereo/mono mode and select the source when in mono mode. ...

  • Page 34: Location Of Optimod-Fm

    1-10 INTRODUCTION ORBAN MODEL 8300 Location of OPTIMOD-FM Optimal Control of Peak Modulation Levels The audio processing circuitry in OPTIMOD-FM produces a signal that is pre- emphasized to either the 50s or 75s standard pre-emphasis curve. It is precisely and absolutely high-frequency-controlled and peak-controlled to prevent over- modulation, and is filtered at 15 kHz to protect the 19 kHz pilot and prevent distor- tion caused by aliasing-related non-linear crosstalk.

  • Page 35: Best Location For Optimod-Fm

    1-11 OPTIMOD-FM DIGITAL INTRODUCTION processor and the stereo encoder. We therefore recommend using the 8300 with its built-in stereo encoder whenever practical. Best Location for OPTIMOD-FM The best location for OPTIMOD-FM is as close as possible to the transmitter, so that its stereo encoder output can be connected to the transmitter through a circuit path that introduces the least possible change in the shape of OPTIMOD-FM’s carefully peak-limited waveform —...
  • Page 36 You will achieve a louder sound on the air, with better control of peak modulation, than if you use most external stereo encoders. An exception is Orban’s 8218 stereo encoder, which does not add overshoot, and, in fact, contains its own overshoot limiter. However, because it accepts audio in left/right form, the 8218 will not let you exploit the 8300’s composite limiter.

  • Page 37: Studio-Transmitter Link

    1-13 OPTIMOD-FM DIGITAL INTRODUCTION Because of their special design, OPTIMOD-FM’s pre-emphasis network and low-pass filters perform the same functions while retaining tight peak control. Studio-Transmitter Link Transmission from Studio to Transmitter There are five types of studio-transmitter links (STLs) in common use in broadcast ®...

  • Page 38: Composite Baseband Microwave Stls

    1-14 INTRODUCTION ORBAN MODEL 8300 For MPEG Layer 2 encoding, we recommend 384 kB/second or higher. Some links may use straightforward PCM (pulse-code modulation) without lossy data reduction. If you connect to these through an AES3 digital interface, these can be very transparent provided they do not truncate the digital words produced by the devices driving their inputs.
  • Page 39 STL is good enough to pass unprocessed audio. The signal-to-noise ratio of the STL can be used optimally if an Orban Optimod-PC 1101, Optimod 6300, 8200ST Compressor / Limiter / HF Limiter / Clipper or an 4000 Transmission Limiter protects the link from overload.

  • Page 40: Analog Landline (Ptt / Post Office Line)

    Some consultants presently offer modifications to minimize or eliminate this prob- lem. If your exciter or STL has this problem, you may contact Orban Customer Service for the latest information on such services. Analog Landline (PTT / Post Office Line) Analog landline quality is extremely variable, ranging from excellent to poor.

  • Page 41: Using Lossy Data Reduction In The Studio

    1-17 OPTIMOD-FM DIGITAL INTRODUCTION screen, and the remote operation can be selected in System Setup: Network / Re- mote. Using Lossy Data Reduction in the Studio Many stations are now using lossy data reduction algorithms like MPEG-1 Layer 2 or Dolby AC2 to increase the storage time of digital playback media.

  • Page 42: Studio Line-Up Levels And Headroom

    1-18 INTRODUCTION ORBAN MODEL 8300 Studio Line-up Levels and Headroom The studio engineer is primarily concerned with calibrating the equipment to pro- vide the required input level for proper operation of each device, and so that all de- vices operate with the same input and output levels. This facilitates patching devices in and out without recalibration.

  • Page 43: Transmission Levels

    8300’s input meter. Composite Output Level The Orban 8300 Audio Processor controls instantaneous, absolute peak levels to a tolerance of approximately 0.1 dB. Composite modulation is indicated in percent- age modulation, absolute instantaneous peak indicating. 100% is calibrated to the...

  • Page 44: Built-In Calibrated Line-Up Tones

    1-20 INTRODUCTION ORBAN MODEL 8300 Built-in Calibrated Line-up Tones To facilitate matching the output level of the 8300 to the transmission system that it is driving, the 8300 contains an adjustable test tone oscillator that produces sine waves at 8300’s (analog or digital) left, right and composite outputs. The frequency and modulation level of the line-up tones can be adjusted from the front panel (as described in Section 3).

  • Page 45: Eas Test

    1-21 OPTIMOD-FM DIGITAL INTRODUCTION confusion or hesitation in the talent’s performance unless the delay is above the psychoacoustic “echo fusion” (Haas) threshold of approximately 20 ms and the tal- ent starts to hear slap echo in addition to frequency response colorations. The normal delay through the 8300 is about 15 ms.

  • Page 46: Pc Control And Security Passcode

    1-22 INTRODUCTION ORBAN MODEL 8300 You can set the bypass gain with the B control located to the YPASS right of the M control. B) Begin EAS broadcast. After the EAS broadcast, resume normal processing: C) Set the M to O PERATE This will restore the processing preset in use prior to the Test Mode.

  • Page 47: Warranty, User Feedback

    However, the limitation of any right or remedy shall not be effective where such is prohibited or restricted by law. Simply take or ship your Orban products prepaid to our service department. Be sure to include a copy of your sales slip as proof of purchase date. We will not repair transit damage under the no-charge terms of this warranty.

  • Page 48: Extended Warranty

    Warranty (yielding a total Warranty period of five years) by remitting to Orban ten percent of the gross purchase price of your Orban product. This offer applies only to new Orban products purchased from an authorized Orban Dealer.

  • Page 49: Section 2 Installation

    C) Complete the Registration Card and return it to Orban. (please) The Registration Card enables us to inform you of new applications, per- formance improvements, software updates, and service aids that may be...
  • Page 50 INSTALLATION ORBAN MODEL 8300 of purchase. Please fill in the Registration Card and send it to us today. (The Registration Card is located after the cover page). Customer names and information are confidential and are not sold to anyone. 2. Check the line voltage, fuse and power cord.
  • Page 51 This will break most potential ground loops. If you have an installation that does not respond to use of the G switch, you can always break a ground ROUND loop by using Orban’s CIT25 Composite Isolation Transformer. If the CIT25 is in use, the G switch will usually be set to GROUND. ROUND 4.
  • Page 52 8300_Vxxx_installation.pdf (where xxx represents the version number of the software). You can access this file from the Orban / Optimod 8300 folder in your computer’s Start Menu after you have run Orban’s PC Remote installer software.

  • Page 53: 8300 Rear Panel

    OPTIMOD-FM DIGITAL INSTALLATION This file is also available from the / 8300 / Documentation / Vxxx folder at Orban’s ftp site, ftp.orban.com. 8300 Rear Panel The Ground Lift Switch can be set to connect the 8300’s circuit ground to its chas- sis ground (in the G position).

  • Page 54: Input And Output Connections

    INSTALLATION ORBAN MODEL 8300 Input and Output Connections Cable We recommend using two-conductor foil-shielded cable (such as Belden 8451 or equivalent) for the audio input and output connections because signal current flows through the two conductors only. The shield does not carry signal and is used only for shielding.

  • Page 55: Analog Audio Output

    OPTIMOD-FM DIGITAL INSTALLATION  If the output of the driving unit is unbalanced and does not have separate and (–) (or L ) output terminals, connect both the shield and HASSIS ROUND the black wire to the common (–) or ground terminal of the driving unit. Analog Audio Output ...

  • Page 56: Composite Output And Subcarrier Input

    This also eases thermal stresses on the output amplifier in the stereo encoder, and can thus extend equipment life. If the Orban CIT25 Composite Isolation Transformer is used, the exciter must present a 1k or greater load to the transformer for proper trans-...
  • Page 57 OPTIMOD-FM DIGITAL INSTALLATION Designed to be installed adjacent to each exciter, the CIT25 Composite Isolation Transformer provides ground loop isolation between the 8300 composite output and the exciter’s input, and presents the 8300 with a balanced, floating load. Even when its composite limiter is being used heavily, the 8300 will al- ways protect the stereo pilot tone by at least 60 dB (250Hz from 19 kHz) and will protect the region from 55 kHz to 100 kHz by at least 75 dB (re 100% modulation).

  • Page 58: Grounding

    A special variant of the I/O board is available having an added trimmer (VR401) to set the gain of SCA2. This variant should be specified at time of order. Please contact Orban customer service (see page 5-13) for more information.

  • Page 59: Power Ground

    ROUND wise occur. Alternately, you can balance and float the exciter input with the Orban CIT25 Composite Isolation Transformer — see page 2-8.  In high RF fields, the system is usually grounded through the equipment rack in which the 8300 is mounted.
  • Page 60 2-12 INSTALLATION ORBAN MODEL 8300 These flash when such a menu is in use. Otherwise, they are inactive.  Control Knob is used to change the setting that is selected by the soft buttons. To change a value, you ordinarily have to hold down a soft button while you are turning the control knob.

  • Page 61: Studio Level Controller Installation (Optional)

    If you are using an Orban 8100AST (or 8100A/ST) external AGC, refer to page 1-16. If you are using Orban 8200ST external AGC...

  • Page 62: Figure 2-4: 8200St Jumper Settings (*Factory Configuration)

    2-14 INSTALLATION ORBAN MODEL 8300 TOP OF MAIN BOARD Clipper Jumpers Output Pre-Emphasis Jumpers FLAT PRE-EMPHASIZED CLIPPER ON CLIPPER OFF LEFT RIGHT LEFT RIGHT OUTPUT OUTPUT OUTPUT OUTPUT Line-up Level Jumpers *PEAK LEFT RIGHT LEFT RIGHT OUTPUT OUTPUT OUTPUT OUTPUT Figure 2-4: 8200ST Jumper Settings (*Factory Configuration) Refer to Figure 2-4 on page 2-14.
  • Page 63 2-15 OPTIMOD-FM DIGITAL INSTALLATION A) Place jumper JA in the C position. LIPPER B) If you have defeated the STL transmitter’s pre-emphasis, place jumpers JE and JF in the P position. MPHASIZED C) If you cannot defeat the STL transmitter’s pre-emphasis, place jumpers JE and JF in the F position.

  • Page 64: Quick Setup

    2-16 INSTALLATION ORBAN MODEL 8300 B) Feed the 8200ST either with tone at your system reference level (0VU), or with typical program material at normal levels. C) Adjust the G control for the desired amount of gain reduction. EDUCTION We recommend 8-15 dB gain reduction for most formats.
  • Page 65 B) Set external AGC mode by turning the knob.  Set the field to Yes if you have an external AGC (such as an Orban 1100, 1101, 6300, 8200ST OPTIMOD-Studio, Orban 464A Co-Operator, or similar AGC) installed at your studio feeding the studio-to-transmitter link. This setting appropriately defeats the 8300’s AGC for all presets.
  • Page 66 2-18 INSTALLATION ORBAN MODEL 8300 below threshold. It is not designed to perform an AGC or gain-riding function, and it cannot substitute for the AGC function in the 8300. 8. Select your primary input (analog or digital). A) Press the N button.
  • Page 67 2-19 OPTIMOD-FM DIGITAL INSTALLATION these presets is not as good as the normal 8300 “optimum latency” pre- sets. It is therefore preferable to set up a separate headphone monitor- ing chain as described below and to use the low latency presets only if necessary.
  • Page 68 2-20 INSTALLATION ORBAN MODEL 8300 A) Press the N button. B) [Skip this step if you will not be using the digital output.] Turn the knob to choose P (for a 50 or 75µs pre-emphasized output), J.17 (for a J.17 pre-emphasized output), P +J17 (for 50 or 75µs pre-...
  • Page 69 2-21 OPTIMOD-FM DIGITAL INSTALLATION In other countries, use a peak-indicating instrument as specified by the regulatory authority in your country. If you are required to implement the average modulation limits specified by ITU-R 412-9, you may seldom see peaks hitting 75 kHz deviation. In this case, we advise you to set the output level using the 8300’s reference 400Hz tone.
  • Page 70 (e.g., “Z-100”). The name can be up to eight characters long. It is used to identify your 8300 to Orban’s PC Remote application, and it appears on the Main Screen when the 8300 is being controlled by the PC Remote application.
  • Page 71 2-23 OPTIMOD-FM DIGITAL INSTALLATION and observe the peak deviation produced by the program material. The overshoot is the amount (in dB) by which the deviation with program material exceeds 75 kHz deviation. See the notes on the M control on page 3-35. OWER FFSET 21.

  • Page 72: Analog And Digital I/O Setup

    A) Navigate to S AGC and set E AGC to N ETUP If you are using a external AGC like the Orban 8200ST, you should restore this setting to Y after the setup procedure is complete. 2. Adjust Input selector.
  • Page 73 (typically 0VU if your console uses VU meters). If you are using a studio level controller that performs an AGC function, such as an Orban 8200ST OPTIMOD-Studio, adjust it for normal opera- tion. c) Adjust the AI R (VU or PPM) control to make the 8300’s AGC meter...
  • Page 74 2-26 INSTALLATION ORBAN MODEL 8300 G) When finished, reset E AGC to Y , if required (e.g., if that was its setting prior to setting AI R (VU or PPM) level). Refer to step 1 on page 2-24. 4. Adjust Right Channel Balance.
  • Page 75 2-27 OPTIMOD-FM DIGITAL INSTALLATION d) Set T to 100%. e) Press the N key. f) Set T to L+R. g) Verify that P is O ILOT h) When you have finished with the tone, set the M to O PERATE E) If you are required to meet the requirements of ITU-R 412-9 in your country, activate the 8300’s ITU-R 412 controller.
  • Page 76 2-28 INSTALLATION ORBAN MODEL 8300 If you are using program material, make sure that the program material is loud enough to produce peaks of frequent recurrence that hit the 8300’s peak limiting system, thereby defining the maximum peak level that the 8300 will produce. In the U.S., we recommend using 900s peak weighting on the peak modulation indicator, as permitted by F.C.C.
  • Page 77 2-29 OPTIMOD-FM DIGITAL INSTALLATION The 8300 can also truncate its output word length to 20, 18, 16 or 14 bits. The 8300 can add dither for input material that is insufficiently dithered for these lower word lengths (see the next step). F) Adjust D to I or O...

  • Page 78: Automation Using The 8300'S Internal Clock

    2-30 INSTALLATION ORBAN MODEL 8300 10. Select a processing preset. See step 18 on page 2-21. Automation Using the 8300’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 2-39.]...
  • Page 79 2-31 OPTIMOD-FM DIGITAL INSTALLATION 3. To add an automation event: A) Push the A button. VENT B) Choose whether you wish to program an event that occurs only once or an event that follows a daily or weekly schedule. C) For events that occur only once: a) Use the buttons to move the cursor over the word “...

  • Page 80: Security And Passcode Programming

    2-32 INSTALLATION ORBAN MODEL 8300  exit test (restores the operating preset that was on-air before a test mode was invoked)  mod. reduction 1  mod. reduction 2  exit mod. reduction F) When you have programmed an event to your satisfaction, press the S button.

  • Page 81: To Create A Passcode

    2-33 OPTIMOD-FM DIGITAL INSTALLATION 1. All Screens (i.e., administrator level) 2. All Screens except Security 3. All screens except Modify and Security 4. Presets, Modify, Save, Memory, and Automation 5. Presets and Automation 6. Presets There is no default passcode. The Optimod’s front panel cannot be locked out unless the Optimod has been assigned at least one All Access passcode.

  • Page 82: To Delete A Passcode

    2-34 INSTALLATION ORBAN MODEL 8300 If the front panel is already password protected, you can only access this screen by entering a passcode with A privileges. CCESS B) Turn the knob until you see the passcode you want to edit.

  • Page 83: To Unlock The Front Panel

    2-35 OPTIMOD-FM DIGITAL INSTALLATION C) Press the E button to leave the Security menu. SCAPE To Unlock the Front Panel: A) On the 8300 front panel, operate any button or the knob. The P screen will appear. ASSCODE B) Enter a passcode using the four soft buttons. The 8300 functionality that you can access depends on the security level of the passcode that you entered.

  • Page 84: Remote Control Interface Programming

    2-36 INSTALLATION ORBAN MODEL 8300 Remote Control Interface Programming [Skip this step if you do not wish to program the GPI (contact closure) remote con- trol interface.] 1. Navigate to S & R ETUP ETWORK EMOTE EMOTE NTERFACE 2. Program one or more remote control interfaces.

  • Page 85: Networking And Remote Control

    2-37 OPTIMOD-FM DIGITAL INSTALLATION  Reset Clock To Hour: resets the internal clock to the nearest hour. For exam- ple, 3:03:10 would be reset to 3:00:00, while 3:53:40 would be reset to 4:00:00. Use this function to periodically re-sync the 8300’s internal clock to your station’s master clock.
  • Page 86 2-38 INSTALLATION ORBAN MODEL 8300 a) Press the soft button. UBNET b) Use the keys to move the cursor in turn to each digit in the subnet mask. Use the knob to set the digit to the desired value. Repeat...

  • Page 87: Synchronizing Optimod To A Network Time Server

    You will need two modems and two available phone lines, one of each for your PC and your 8300. Orban Customer Service supports only the 3Com / U.S. Robot- ics® 56kbps fax modem EXT on the 8300 side of your connection, although other 56kbps modems will often work OK.
  • Page 88 2-40 INSTALLATION ORBAN MODEL 8300  Select T if the Optimod is behind a firewall that does not pass UDP packets. T selects the Time Protocol as described in the standard RFC868. This method uses TCP on port 37.  Select SNTP if your network timeserver supports the Simple Network Time Protocol as described in standard RFC1769.
  • Page 89 2-41 OPTIMOD-FM DIGITAL INSTALLATION 3. Press the NEXT button to set up timeserver parameters. The T button is located on the second page of the T func- ERVER tions. (You can access this function from anywhere in the Optimod menu tree by navigating to S ETUP You can specify the timeserver either from your Optimod’s front panel or from...
  • Page 90 2-42 INSTALLATION ORBAN MODEL 8300 If you are running Windows 2000, you cannot specify the timeserver from your computer. However, you can still set your Optimod’s clock and off- set. A) In Windows, navigate to the C tab. ONTROL ANEL ATE AND B) Set time zone to correspond to your local time zone.

  • Page 91: Installing 8300 Pc Remote Control Software

    To connect your PC to your 8300, regardless of the method you choose, you will need the following:  Orban 8300 OPTIMOD-FM.  If connecting by serial cable: a null modem cable (also called a “reverse” cable), supplied by Orban with your 8300 when it was shipped. This cable has DB9 fe-...

  • Page 92: Running The Orban Installer Program

     You might have obtained the automatic installer application from some other source than Orban’s CD, like Orban’s ftp site or another computer on your net- work. If so, just run the application and follow the on-screen instructions.

  • Page 93: Setting Up Ethernet, Lan, And Vpn Connections

    INSTALLATION  This program installs the necessary files and adds an Orban / Optimod 8300 folder to your computer’s Start Menu. This folder contains shortcuts to the PC Remote application and to the documentation. If you accepted the option dur- ing installation, there is also a shortcut to the PC Remote application on your desktop.
  • Page 94 2-46 INSTALLATION ORBAN MODEL 8300 [This page intentionally left blank]...

  • Page 95: Appendix: Setting Up Serial Communications

    2-47 OPTIMOD-FM DIGITAL INSTALLATION Appendix: Setting Up Serial Communications This appendix provides instructions for setting up both direct serial and modem connections from your 8300 to your PC. You must do this when you define a new connection from the 8300 PC Remote application. The appendix provides procedures for both the Windows 2000 and Windows XP operating systems.
  • Page 96 2-48 INSTALLATION ORBAN MODEL 8300 1. Add and configure a Direct Connection for Windows 2000: A) Create a New Windows 2000 Direct Connection: a) Launch 8300 Remote. b) Choose “Connect / New 8300” c) Give your 8300 a name (e.g., “KABC”) by en- tering this name in the “8300 Alias”...
  • Page 97 2-49 OPTIMOD-FM DIGITAL INSTALLATION i) In the drop-down box, select the serial port you will be using to make the connection. j) Click “Next.” k) Select either “For all users” or “Only for myself.” The correct setting depends on how your network and security are configured.
  • Page 98 2-50 INSTALLATION ORBAN MODEL 8300 o) Click “Yes.” B) Edit your new Direct Connection properties: a) Click “Settings.” b) Click the “General” tab. c) Select the device you set up in step (i) on page 2-49. This will usually “Com-...
  • Page 99 2-51 OPTIMOD-FM DIGITAL INSTALLATION e) Set “Maximum speed (bps)” “115200.” f) Check “Enable hardware flow con- trol.” g) Make sure that all other boxes are not checked. h) Click “OK.” i) Select the Networking tab. j) Make sure that “PPP: Windows 95 / 98 / NT 4 / 2000, Internet”...

  • Page 100: Connecting Using Windows Xp Direct Serial Connection

    2-52 INSTALLATION ORBAN MODEL 8300 2. Launch an existing Windows 2000 Direct connection. Once you have set up a “connection” specifying Direct Connect in the 8300 PC Remote application (see To set up a new connection on page 3-63), choosing this connection from 8300 PC Remote automatically opens a Windows Direct Connec- tion to your 8300.
  • Page 101 2-53 OPTIMOD-FM DIGITAL INSTALLATION c) Give your 8300 a name (e.g., “KABC”) by entering this name in the “8300 Alias” field. d) If you wish to have 8300 PC Remote remember password this Optimod, enter the password in the “Password“ field. e) Select “Serial Connection.”...
  • Page 102 2-54 INSTALLATION ORBAN MODEL 8300 k) Type in a name for your Connection such “Connection to 8300.” l) Click “Finish.” m)Click “Yes.” B) Edit your Direct Connection properties: a) Click “Settings.”...
  • Page 103 2-55 OPTIMOD-FM DIGITAL INSTALLATION b) Click the “General” tab. c) Select the device you set up in step (i) on page 2-53. This will usually be “Communications cable between two computers (COM1).” d) Click “Configure.” e) Set the “Maximum Speed (bps)” to 115200.
  • Page 104 2-56 INSTALLATION ORBAN MODEL 8300 i) Select the Networking tab. j) Make sure that “PPP: Windows 95 / 98 / NT 4 / 2000, Internet” appears in the “Type of dial-up server I am calling” field. k) Make sure that “Internet Protocol (TCP/IP) is checked.

  • Page 105: Preparing For Communication Through Modems

    You will need two modems and two available phone lines, one of each for your PC and your 8300. Reminder: Orban supports only the 3Com / U.S. Robotics® 56kbps fax modem EXT on the 8300 side (although other 56kbps modems will often work OK).
  • Page 106 2-58 INSTALLATION ORBAN MODEL 8300 Use either an internal modem or external modem with your computer. a) If you are using an external modem, connect the modem to a serial port on your PC and make sure the modem is connected to a working phone line.
  • Page 107 2-59 OPTIMOD-FM DIGITAL INSTALLATION c) Give your 8300 a name (e.g., “KABC”) by entering this name in the “8300 Alias” field. d) If you wish to have 8300 PC Remote remember password this Optimod, enter the password in the “Password“ field. e) Select “Serial Connection.”...
  • Page 108 2-60 INSTALLATION ORBAN MODEL 8300 k) Select either “For users” “Only myself.” correct setting depends on how your network and security are configured. This screen may not appear in computers set up for single users. l) Click the “Next” button.
  • Page 109 2-61 OPTIMOD-FM DIGITAL INSTALLATION D) Edit your new Direct Connection prop- erties: a) Click “Settings.” b) Click the “General” tab. c) In the “Connect using” field, select the modem you will be using to make the connection on the PC side. d) Click “Configure.”...
  • Page 110 2-62 INSTALLATION ORBAN MODEL 8300 e) Set “Maximum speed (bps)” to “115200.” f) Check “Enable hard- ware flow control.” g) Check “Enable mo- dem error control.” h) Check “Enable dem compression.” i) Make sure that all other boxes are not checked.

  • Page 111: Connecting Using Windows Xp Modem Connection

    2-63 OPTIMOD-FM DIGITAL INSTALLATION 2. Launch a Windows 2000 Modem connection. Once you have set up a “connection” specifying a modem connection in the 8300 PC Remote application (see To set up a new connection on page 3-63), choosing this connection from 8300 PC Remote automatically opens a Windows modem connection to your 8300.
  • Page 112 2-64 INSTALLATION ORBAN MODEL 8300 Not all PCs have a COM2. IMPORTANT: The COM port you choose at this point must match the COM port to which you connected your modem. g) From the tabs at the top, choose “Port Settings” and configure the settings to match your PC modem.
  • Page 113 2-65 OPTIMOD-FM DIGITAL INSTALLATION C) Create a new Windows XP modem connec- tion: a) Launch 8300 PC Remote. b) Choose “Connect / New 8300.” The Connection Properties win- dow opens. c) Give your 8300 a name (e.g., “KABC”) by entering this name in the “8300 Alias” field.
  • Page 114 2-66 INSTALLATION ORBAN MODEL 8300 j) Enter phone number of the modem connected to the 8300 you are setting up. k) Click “Next.” l) Type in a name for your Connection such “Connection 8300 – Modem” m)Click “Finish” button. n) Click “Yes.”...
  • Page 115 2-67 OPTIMOD-FM DIGITAL INSTALLATION D) Edit your new Direct Connection proper- ties: a) Click “Settings.” b) Click the “General” tab. c) Select the modem you will be using to make the connection on the PC side. d) Click “Configure.”...
  • Page 116 2-68 INSTALLATION ORBAN MODEL 8300 e) Set “Maximum speed (bps)” to “115200.” f) Check “Enable hardware flow control.” g) Check “Enable modem error control.” h) Check “Enable mcdem compression.” i) Make sure that no other box is checked. j) Click “OK.”...

  • Page 117: Updating Your 8300'S Software

    2. Install the latest version of 8300 PC Remote software on your computer. This is available from ftp://orban.com/8300 See Installing 8300 PC Remote Control Software on page 2-43. See the readme8300_x.x.x.x.htm file (where x.x.x.x is the version number) for de- tails about the upgrade not given in this manual.
  • Page 118 2-70 INSTALLATION ORBAN MODEL 8300 4. Update your 8300. A) Attempt to initiate communication to your 8300 via your connection. See To initiate communication on page 3-63. 8300 PC Remote will automatically detect that the 8300 software version on your 8300 is not the same as the version of 8300 PC Remote. PC Re- mote will then offer to update your 8300 automatically.

  • Page 119: Section 3 Operation

    OPTIMOD-FM DIGITAL OPERATION Section 3 Operation 8300 Front Panel  Screen Display labels the four soft buttons and provides control-setting infor- mation.  Screen Contrast button adjusts the optimum viewing angle of the screen dis- play.  Four Soft buttons provide access to all 8300 functions and controls. The func- tions of the soft buttons change with each screen, according to the labels at the bottom of each screen ...
  • Page 120 OPERATION ORBAN MODEL 8300  Escape button provides an escape from current screen and returns user to the next higher-level screen. Repeatedly pressing Escape will always return you to the Idle screen, which is at the top level of the screen hierarchy.

  • Page 121: Introduction To Processing

    In FM processing, there is a direct trade-off between loudness, brightness, and dis- tortion. You can improve one only at the expense of one or both of the others. Thanks to Orban’s psychoacoustically optimized designs, this is less true of Orban processors than of any others. Nevertheless, all intelligent processor designers must acknowledge and work within the laws of physics as they apply to this trade-off.

  • Page 122: Optimod-Fm - From Bach To Rock

    OPERATION ORBAN MODEL 8300 adjusting the volume control. However, there is nothing the listener can do to make an excessively compressed or peak-limited signal sound clean again. If processing for high quality is done carefully, the sound will also be excellent on small radios.

  • Page 123: About The 8300'S Signal Processing Features

    CDs that this energy cannot possibly survive the FM pre-emphasis / de- emphasis process. Although the 8300 loses less high frequency energy than any pre- vious Orban processor (due to improvements in high frequency limiting and clipping technology), it is nevertheless no match for CDs that are mastered so bright that they will curl the vinyl off car dashboards.
  • Page 124 Stereo Enhancement: The 8300 provides a stereo enhancement algorithm based on Orban’s patented analog 222 Stereo Enhancer, which increases the energy in the stereo difference signal (L–R) whenever a transient is detected in the stereo sum sig- nal (L+R).
  • Page 125 622B), using a sophisticated, proprietary optimization program. The curves are matched to better than 0.15 dB. This means that their sound is very close to the sound of an Orban analog parametric. They also use very high quality filter algo- rithms to ensure low noise and distortion.
  • Page 126 DSP-derived Stereo Encoder: The 8300’s stereo encoder is derived from algo- rithms first developed for the high-performance Orban 8218 stand-alone encoder. The 8300’s stereo encoder operates at 512 kHz-sample rate to ease the performance requirements of the D/A converter’s reconstruction filter, making it possible to...

  • Page 127: Itu-R 412 Compliance

    OPTIMOD-FM DIGITAL OPERATION While the processing never clips the pilot tone, the extra spectrum generated by the processing can fall into the 19 kHz region, compromising the ability of receivers to recover the pilot tone cleanly. Therefore, the 8300’s composite processor has a 19 kHz notch filter to protect the pilot tone.

  • Page 128: Input/Output Delay

    ORBAN MODEL 8300 Input/Output Delay The algorithmic improvements in the 8300 over earlier generations of Orban DSP- based processing (8200 and 2200) have one significant cost — the input/output time delay is typically 15 ms. To make intelligent decisions about how to process, the 8300 needs to look ahead at the next part of the program waveform.

  • Page 129: Basic Modify

    8300 users will never need to go beyond the Basic level of control. The combinations of subjective setup control settings produced by this control have been optimized by Orban’s audio processing experts on the basis of years of experience designing audio processing, and upon hundred of hours of listening tests.

  • Page 130: Advanced Modify

    3-12 OPERATION ORBAN MODEL 8300 once you have edited a preset’s dynamics parameters in Full Modify, control is no longer available in Basic Modify and will be grayed-out if you access its screen. As noted above, we recommend using the Basic Modify L...

  • Page 131: To Create Or Save A User Preset

    3-13 OPTIMOD-FM DIGITAL OPERATION Further, be aware of the different peak factors on voice and music — if voice and music are peaked identically on a VU meter, voice may cause up to 10 dB more peak gain reduction than does music! (A PPM will indicate relative peak levels much more accurately.) The AGC meter can be switched (within the Full Control screens) so that it either reads the gain reduction of the Master (above-200 Hz) band, or the difference be-...

  • Page 132: About The Processing Structures

    3-14 OPERATION ORBAN MODEL 8300 front panel). The PC Remote application also allows you to archive pre- sets to your computer’s hard drive (or other storage device) and to re- store them. However, archiving a preset is not the same as saving it. Ar- chived presets reside on a storage medium supported by your computer, while saved presets reside in the 8300’s local non-volatile memory.
  • Page 133 Both the Two-Band and Five-Band multiband compressors always operate in the background. So switching between Two-Band and Five-Band occurs with a seamless cross-fade. Unlike older Orban processors like the 8200, no DSP code is reloaded and no audio mute is necessary.

  • Page 134: Factory Programming Presets

    Protection Limiter, Two-Band and Five-Band sections that follow. Each Orban factory preset has full L capability. The table shows the presets, including the source presets from which they were taken and the nominal L setting of each preset.
  • Page 135 3-17 OPTIMOD-FM DIGITAL OPERATION 8300 V2 FACTORY PROGRAMMING Presets EXTREME MX EXTREME MX EXTREME EXTREME JAZZ MX JAZZ MX JAZZ JAZZ NEWS-TALK MX NEWS-TALK MX NEWS-TALK NEWS-TALK OLDIES MX OLDIES MX OLDIES OLDIES ROCK-GEN MX ROCK-GEN MX ROCK-GENERAL ROCK-GENERAL ROCK-GEN UL ROCK-GEN UL ROCK-LIGHT MX ROCK-LIGHT MX...
  • Page 136 Basic Modify and make small changes to the Bass, Mid EQ, and HF EQ controls. Unlike some ear- lier Orban’s processors, the 8300 lets you make changes in EQ (and stereo enhance- ment) without losing the ability to use L settings.
  • Page 137 3-19 OPTIMOD-FM DIGITAL OPERATION There is also a corresponding two-band preset called CLASSICAL-2B+AGC. In our opinion, this provides an ideal combination of unobtrusive compression and low coloration, typically raising low-level material about 10 dB. BASS-PUNCH produces a slight increase in bass energy below 100 Hz and a decrease of bass energy centered at 160 Hz.
  • Page 138 3-20 OPERATION ORBAN MODEL 8300 late the high frequency balance of recently recorded material. SPORTS: Similar to NEWS-TALK except the AGC RELEASE (AGC Release Time) is slower and the GATE THRESH (Gate Threshold) is higher. This recognizes that most sports programming has very low signal-to-noise ratio due to crowd noise and other on-field sounds, so the preset does not pump this up as the NEWS-TALK preset would tend to do.

  • Page 139: Equalizer Controls

    3-21 OPTIMOD-FM DIGITAL OPERATION For Contemporary Hit Radio (CHR) we recommend BASS-SLAM, ROCK-LOUD, URBAN-LOUD or EXTREME. However, the “rock” presets are noticeably cleaner, and are therefore more likely to encourage longer times spent listening than are these “loud” presets. For Album-Oriented Rock (AOR) we recommend the ROCK-LOUD or BASS-SLAM with L turned down somewhat (depending on your market and competi- tive situation).
  • Page 140 3-22 OPERATION ORBAN MODEL 8300 Because the Five-Band structure often increases the brightness of program material, some bass boost is usually desirable to keep the sound spectrally well balanced. Ad- justment of bass equalization must be determined by individual taste and by the re- quirements of your format.
  • Page 141 Low Frequency Parametric Equalizer is a specially designed parametric equalizer whose boost and cut curves closely emulate those of a classic Orban analog para- metric equalizer with conventional bell-shaped curves (within 0.15 dB worst-case).
  • Page 142 3-24 OPERATION ORBAN MODEL 8300 MID GAIN determines the amount of peak boost or cut (in dB) over a 10 dB range. MID WIDTH determines the bandwidth of the equalization, in octaves. The range is 0.8-4.0 octaves. If you are unfamiliar with using a parametric equalizer, 1 octave is a good starting point.
  • Page 143 The difference will never exceed the difference that would have otherwise occurred if the lowest frequency band was independently gated. If you are familiar with older Orban processors like the 8200, this is the maximum amount of boost that would have occurred if you had set their...

  • Page 144: Stereo Enhancer Controls

    8300 conservatively and not attempting to achieve very high on-air loudness. You have somewhat more leeway than you do in older Orban FM processors like the 8200 because the 8300’s new distortion control will work to help prevent audible speech distortion even when the phase rotator is switched out.

  • Page 145: Agc Controls

    3-27 OPTIMOD-FM DIGITAL OPERATION AGC Controls The AGC is common to the Two-Band and Five-Band structures. Five of the AGC controls are common to the Full Modify and Advanced Modify screens, with additional AGC controls available in the Advance Modify screen, as noted in the following table.
  • Page 146 ORBAN MODEL 8300 processing (such as a CLASSICAL preset). The AGC is also ordinarily defeated if you are using a studio level controller (like Orban’s 8200ST). However, in this case it is better to defeat the AGC globally in System Setup.
  • Page 147 3-29 OPTIMOD-FM DIGITAL OPERATION noise or background sounds and cause the AGC or multiband compressor to gate, effectively freezing gain to prevent noise breathing. There are two independent gating circuits in the 8300. The first affects the AGC and the second affects the multiband compressor. Each has its own threshold control. The multiband compressor gate causes the gain reduction in bands 2 and 3 of the multiband compressor to quickly move to the average gain reduction occurring in those bands when the gate first turns on.

  • Page 148: Advanced Agc Controls

    Previous Orban AGCs had compression ratios very close to :1, which produces the most consistent and uniform sound. However, the 8300 compressor can reduce this...
  • Page 149 3-31 OPTIMOD-FM DIGITAL OPERATION ratio to as low as 2:1. This can add a sense of dynamic range and is mostly useful for subtle formats like classical and jazz. This control reduces the available range of AGC gain reduction because it acts by at- tenuating the gain control signal produced by the AGC sidechain.
  • Page 150 3-32 OPERATION ORBAN MODEL 8300 control to 3.0 and the AGC M AXIMUM ELTA EDUCTION ASTER ELTA HRESHOLD control to some positive number, depending on how much automatic width control you want the 8300 to perform. AGC Bass Delta Threshold works the same as AGC M...

  • Page 151: Clipper Controls

    (Note that “advanced” controls are accessible only from 8300 PC Remote software.) Bass Clip (“Bass Clip Threshold”) sets the threshold of Orban’s patented embedded bass clipper with reference to the final clipper. The bass clipper is embedded in the multiband crossover so that any distortion created by clipping is rolled off by part of the crossover filters.
  • Page 152 3-34 OPERATION ORBAN MODEL 8300 Turning up the F control drives the final clipper and overshoot compensator INAL harder, reducing the peak-to-average ratio, and increasing the loudness on the air. When the amount of clipping is increased, the audible distortion caused by clipping also increases.
  • Page 153 3-35 OPTIMOD-FM DIGITAL OPERATION The receiver will “see” this as stereo material, and will demodulate it as if it were part of the stereo subchannel. Accordingly, harmonics of L+R ma- terial will be frequency-shifted upon demodulation, and will no longer bear a harmonic relationship to the material that produced them.
  • Page 154 3-36 OPERATION ORBAN MODEL 8300 complies with the ITU standard while minimizing the potential for unnatural and audibly disturbing loudness inconsistencies caused by the operation of the multiplex power controller. BCL MODE (Bass Clip Mode) sets the operation of the bass clipper to H...

  • Page 155: Advanced Clipper Controls

    Five-Band structure. Like the “Two-Band Purist” structure in Orban’s OPTIMOD-FM 8200, the 8300’s Two-Band Structure is phase-linear through- out to maximize sonic transparency.

  • Page 156: The Protection Presets

    3-38 OPERATION ORBAN MODEL 8300 The Two-Band structure is mainly useful for classical or “fine arts” programming that demands high fidelity to the original program source. The Protection Presets There are two Protection Factory Presets. Both use the same DSP code as the Two- Band Purist structure, but the AGC is defeated.

  • Page 157: Customizing The Settings

    3-39 OPTIMOD-FM DIGITAL OPERATION The CLASSICAL-2 BAND preset is a two-band preset with the AGC turned off. It uses considerable bass coupling to preserve the spectral balance of the input as well as possible. Its L control primarily affects the amount of compression, rather than maximum loudness.
  • Page 158 3-40 OPERATION ORBAN MODEL 8300 AGC, Equalizer, Stereo Enhancer, and Clipper controls are common to both Two- Band and Five-Band structures and are described in their own sections earlier in Sec- tion 3. Some of the Two-Band controls are common to the Full Modify and Advanced Mod- ify screens, with additional Two-Band controls available in the Advanced Modify screen.
  • Page 159 3-41 OPTIMOD-FM DIGITAL OPERATION pression sounds very natural, even on classical music. 2B REL (“2B Release”) control determines how fast the two-band compressor re- leases (and therefore how quickly loudness increases) when the level of the program material decreases. This release time only applies when the silence gate does not gate the Two-Band Compressor.
  • Page 160 3-42 OPERATION ORBAN MODEL 8300 sound often produced by processors at high gain reduction levels, and makes OPTIMOD-FM remarkably resistant to operator gain-riding errors. 2B GATE (“2B Gate Threshold”) threshold control determines the lowest input level that will be recognized as program by OPTIMOD-FM; lower levels are considered to be noise or background sounds and will cause the AGC or two-band compressor to gate, effectively freezing gain to prevent noise breathing.
  • Page 161 3-43 OPTIMOD-FM DIGITAL OPERATION maximum loudness and density on small radios achievable by the Two-Band struc- ture. However, such processing may fatigue listeners with high-quality receivers, and requires you to activate the AGC to control the average drive level into the two- band compressor, preventing uncontrolled build-up of program density.

  • Page 162: Advanced Two-Band Controls

    3-44 OPERATION ORBAN MODEL 8300 with its parent preset and then setting a target 8300’s front panel controls to corre- spond to the user preset you want to duplicate. The only way to duplicate such a user preset accurately is via the PC Remote software’s backup and restore features, or by opening the preset in the PC Remote software and manually duplicating each control setting you see.

  • Page 163: The Five-Band Structure

    3-45 OPTIMOD-FM DIGITAL OPERATION the main clipping distortion controller to work harder on speech while preserving punch in music. The Five-Band Structure The Five-Band structure consists of a stereo enhancer, a slow gain-riding two-band AGC, an equalization section, a five-band compressor, a dynamic single-ended noise reduction system, an output mixer (for the five bands), and a complex peak limiting system.

  • Page 164: The Five-Band Structure's Full And Advanced Setup Controls

    3-46 OPERATION ORBAN MODEL 8300 The Five-Band Structure’s Full and Advanced Setup Controls The tables below summarize the Multiband and Band Mix controls in the dynamics section. The AGC, Equalizer, Stereo Enhancer, and Clipper controls are common to both the Two-Band and Five-Band structures and are discussed in their own sections in Section 3.
  • Page 165 3-47 OPTIMOD-FM DIGITAL OPERATION ended noise reduction. When the release time of the multiband compressor is set to its faster settings, the setting of the M control becomes much more critical to sound quality ULTIBAND RIVE because density increases as the control is turned up. Listen carefully as you adjust it. With these fast release times, there is a point beyond which increasing multiband compressor drive will no longer yield more loudness, and will simply degrade the punch and definition of the sound.
  • Page 166 3-48 OPERATION ORBAN MODEL 8300 to keep the frequency balance consistent from record to record (espe- cially those recorded in different eras). In addition, for background music formats, these settings ensure that your sound doesn’t lose its highs and lows. Because it creates a more consistent frequency balance between...
  • Page 167 3-49 OPTIMOD-FM DIGITAL OPERATION nouncers and guests consistent, pulls low-grade telephone calls out of the mud, and keeps a proper balance between voice and commercials. Voice is the most difficult audio to process, but these settings result in a favorable trade-off between consistency, presence, and distortion. The Factory Presets for this sound are quite different from the other three release time settings.
  • Page 168 3-50 OPERATION ORBAN MODEL 8300 overall frequency response “tilt” of the multiband compressor, broadly maintaining the “automatic equalization” curve it generates for a given piece of program mate- rial. If the control is turned , the control (in the Equaliza-...
  • Page 169 3-51 OPTIMOD-FM DIGITAL OPERATION The single-ended noise reduction system combines a broadband downward ex- pander with a program-dependent low-pass filter. These functions are achieved by causing extra gain reduction in the multiband compressor. You can see the effect of this extra gain reduction on the gain reduction meters. Ordinarily, the gating on the AGC and multiband limiter will prevent objectionable build-up of noise and you will want to use the single-ended noise reduction only on unusually noisy program material.
  • Page 170 3-52 OPERATION ORBAN MODEL 8300 ral upper midrange boost in light pop and instrumental formats. The gain of band 5 is further affected by the B4>B5 CPL control. B4>B5 CPL (“Band 4>5 Coupling”) controls the extent to which the gain of band 5 (6.2 kHz and above) is determined by and follows the gain of band 4.

  • Page 171: Advanced Multiband Controls

    3-53 OPTIMOD-FM DIGITAL OPERATION helps prevent distortion in the final clipper when the input program material con- tains excessive energy above 6 kHz. The Band 5 multiband clipper operates at 256 kHz and is fully anti-aliased. Advanced Multiband Controls The following Advanced Multiband controls are available only from 8300 PC Remote software.
  • Page 172 OPERATION ORBAN MODEL 8300 controls, which have never previously been available in an Orban processor, are risky and difficult to adjust appropriately. They affect the sound of the processor in many subtle ways. The main trade-off is “punch” (achieved with slower attack times) ver- sus distortion and/or pumping produced in the clipping system (because slower at- tack times increase overshoots that must be eliminated in the clipping system).

  • Page 173: About The 8300' Shd / Digital Radio Processing

    3-55 OPTIMOD-FM DIGITAL OPERATION If your setting of a given D control would otherwise create a release ELTA ELEASE slower than “slow” or faster than “fast” (the two end-stops of the M ULTIBAND control), the band in question will instead set its release time at the appro- ELEASE priate end-stop.

  • Page 174: Delay Difference Between Digital-Channel And Fm Outputs

    3-56 OPERATION ORBAN MODEL 8300 Delay Difference between Digital-Channel and FM Outputs To make the receiver analog/digital crossfade free from comb filtering, the time de- lays in the HD Radio’s analog and digital channels must have a fixed and predictable offset, correctly implementing the HD Radio receiver’s “time diversity”...

  • Page 175: Itu-R Multiplex Power Controller

    3-57 OPTIMOD-FM DIGITAL OPERATION essing” page in PC Remote. HD Eq Gain determines the depth of high frequency shelving equalization pro- duced by the parametric HF shelving equalizer, which is located before the look- ahead limiter. This equalizer is sometimes useful for reducing the audible disparity be- tween the FM and digital-channel outputs.
  • Page 176 3-58 OPERATION ORBAN MODEL 8300 The control is located in the S screen because the regulation ETUP TEREO NCODER applies to all operation of the processor in a given installation. If your country enforces the standard, you should set the control to complement the amount of peak overshoot in the transmission system following your Optimod.

  • Page 177: Audio Processing And The Multiplex Power Threshold Control

    3-59 OPTIMOD-FM DIGITAL OPERATION lation) by 3 dB, set the MULTIPLEX POWER THRESHOLD to “+3.” Audio Processing and the Multiplex Power Threshold Control The multiplex power controller reduces multiplex power by applying gain reduction before the Optimod’s FM peak limiting, thereby reducing the drive into the clippers. With no power control, some of the louder 8300 presets can exceed the ITU stan- dard by as much as 9 dB.

  • Page 178: Getting The Bass Sound You Want

    3-60 OPERATION ORBAN MODEL 8300 Getting the Bass Sound You Want Probably the most frequently asked question we get regarding 8300 setup is “How do I get a (such-and-such) bass sound?” It seems that individual preference varies in this area more than anywhere else.
  • Page 179 3-61 OPTIMOD-FM DIGITAL OPERATION voice that is mixed with music and thus not automatically detected as speech). The settings in the factory presets have been adjusted with this TTACK tradeoff in mind, but you might prefer to make a different one. Also, compared to bass clipping, M or S bass clipping allow you to drive the bass clipper...

  • Page 180: Using The 8300 Pc Remote Control Software

    Before running 8300 PC Remote, you must have installed the appropriate Windows communications services on your computer. By default, the installer installs a short- cut to 8300PC.exe on your desktop and in your Start Menu under Orban\Optimod 8300. 8300 PC Remote can control only one 8300 at a time, but it can readily switch be- tween several 8300s.

  • Page 181: To Set Up A New Connection

    3-63 OPTIMOD-FM DIGITAL OPERATION Before your PC can communicate with a given 8300, you must first set up a “connec- tion,” which is information that allows PC Remote to locate and communicate with the 8300. To set up a new connection: A) Launch 8300PC.exe.

  • Page 182: To Modify A Control Setting

    “Loading system files, please wait.” When run, the Orban PC Remote software installer makes copies of all 8300 fac- tory preset files on your local hard drive. The PC Remote software reads these files to speed up its initialization.

  • Page 183: To Save A User Preset You Have Created

    The encryption options prevent archived presets, system files, and auto- mation files from being restored if the user does not have the password used for the encryption. There is no “back door”— Orban cannot help you to decrypt a preset whose password is unknown.

  • Page 184: To Restore Archived Presets, System Files, And Automation Files

    If the preset, system file, or automation file was encrypted when it was originally saved, PC Remote will request the password under which it was encrypted. All User Presets are compatible with all 8300 software versions. If Orban adds new controls to a software version, the new software will assign a reasonable default value to any control missing in an old User Preset.

  • Page 185: To Share An Archived User Preset Between 8300S

    3-67 OPTIMOD-FM DIGITAL OPERATION a) Set the field to a user preset file type (*.orb83user, *.orbu, ILES *.orb85user) b) Highlight all the user presets in the dialog window c) Click the button. ESTORE E) To restore a system file: a) Set the field to the System Setup file type (*.orb83setup).

  • Page 186: To Group Multiple 8300S

    Optimod 8300 PC Re- mote (usually \Program Files\Orban\Optimod 8300). The folder has the same name as the Alias name. Once you establish the initial connection to the 8300, all presets for that 8300 are automatically copied to the Alias folder;...

  • Page 187: Multiple Installations Of Optimod 8300 Pc Remote

    To prevent the installer from overwriting the old version, you must specify a different installation folder when you install the new version (for example, \Program Files\Orban\Optimod 8300v2). Each version of 8300 PC Remote will display all 8300 Aliases, even those pointing to 8300s with incompatible version numbers.

  • Page 188: To Import Archived 8400 And 8500 Presets Into Your 8300

    See To restore archived presets, system files, and automation files on page 3-66 for step by step instructions. The 8300 shares some signal processing technology with Orban’s Optimod-FM 8400 and 8500. However, the 8300 has fewer features. Using 8300 PC Remote software, you can import into the 8300 any 8400 and 8500 User Presets that you archived us- ing the 8400 or 8500 PC Remote software.
  • Page 189 3-71 OPTIMOD-FM DIGITAL OPERATION A) The 8300 will always interpret the 8400 MB D parameter as set to C OUPLE B) The 8300 will always interpret the 8400 B AXIMUM ELTA EDUCTION rameter as set to “0” (i.e., fully coupled). The 8300’s AGC is capable of dual-mono mode, so, unlike the multiband compressor / limiter coupling parameters, the 8300 interprets all 8400 AGC coupling parameters normally.

  • Page 191: Section 4 Maintenance

    OPTIMOD-FM DIGITAL MAINTENANCE Section 4 Maintenance Routine Maintenance The 8300 OPTIMOD-FM Audio Processor uses highly stable analog and digital cir- cuitry throughout. Recommended routine maintenance is minimal. 1. Periodically check audio level and gain reduction meter readings. Become familiar with normal audio level meter readings, and with the normal performance of the G / R metering.

  • Page 192: Subassembly Removal And Replacement

    MAINTENANCE ORBAN MODEL 8300 Subassembly Removal and Replacement See page 6-29 for the Circuit Board Locator and Basic Interconnections diagram. 1. Removing the Top Cover: To access any internal board (including the display assembly), you must remove the top cover.
  • Page 193 OPTIMOD-FM DIGITAL MAINTENANCE C) Unplug the RS-232 interface assembly from the base board. 4. Removing the CPU Module: A) Remove the four screws holding the CPU module to the standoffs that sup- port it on the base board. B) Applying gentle upward pressure, unplug the CPU module from the base board.
  • Page 194 MAINTENANCE ORBAN MODEL 8300 E) Remove the ribbon cable that connects the I/O board to the DSP board. F) Remove the ribbon cable connecting the power supply to the I/O board. G) Remove the three #1 Phillips screws (and their washers) that connect the I/O board to the chassis.
  • Page 195 OPTIMOD-FM DIGITAL MAINTENANCE 9. Reattaching the Power Supply Board: A) Set power supply board into main chassis, so that it aligns with its mounting holes. B) Replace the two Phillips screws that hold the IEC connector. C) Replace the nine #1 Phillips screws that hold the heat sink to the side of the chassis.

  • Page 196: Field Audit Of Performance

    MAINTENANCE ORBAN MODEL 8300 c) Reconnect the three-wire cable at the back of the encoder. 14. Replacing the Top Cover: A) Place top on unit and reattach the eighteen Phillips screws. (Be careful not to pinch any cables.) Field Audit of Performance Required Equipment: ...
  • Page 197 OPTIMOD-FM DIGITAL MAINTENANCE It is often more convenient to make measurements on the bench away from high RF fields which could affect results. For example, in a high RF field it is very difficult to accurately measure the very low THD produced by a properly operating 8300 at most frequencies.
  • Page 198 MAINTENANCE ORBAN MODEL 8300 Word Len....................20 Dither....................Out FORMAT ...................AES3 f) Navigate to S . Set the ITU412-9 control to O ETUP TEREO NCODER g) Navigate to S . Set controls as follows: ETUP MODE ................... Bypass NOTE: Bypass defeats all compression, limiting, and program equaliza- tion, but retains the selected pre-emphasis (either 50s or 75s).
  • Page 199 OPTIMOD-FM DIGITAL MAINTENANCE the following pattern: (1) + unreg. (3) digital gnd (5) +15V (7) +5 V digital (9) –5V analog (2) - unreg (4) chassis gnd (6) -15V (8) +5V analog (10) NC Table 4-2: Layout Diagram of J7, with expected voltages on each pin The +3.3V and +2.5V supplies are locally regulated on the DSP and base boards (see Section 6).
  • Page 200 4-10 MAINTENANCE ORBAN MODEL 8300 D) Inject the Analog Input XLR connector with a level of 0 dBu with the oscillator set to 100 Hz. This is 20 dB below the clip level, which allows headroom for pre- emphasis. (75s pre-emphasis will cause 17 dB of boost at 15 kHz.) E) Connect the audio analyzer to the 8300's Left Analog Output XLR connector.
  • Page 201 4-11 OPTIMOD-FM DIGITAL MAINTENANCE 6. Test Digital Sample Rate Converter (Receiver). A) Verify 8300 software controls are set to their default settings. (Refer to page 4-7.) B) Be sure you are still in B mode [see step (3.F)]. YPASS C) Navigate to S ETUP ALIB D) Set the I...
  • Page 202 4-12 MAINTENANCE ORBAN MODEL 8300 NOTE: The recommended Belar monitor is the only instrument we have encountered that can accurately measure the performance of the 8300’s stereo encoder. With most older-technology monitors, you will be meas- uring the performance of the monitor, not the 8300’s encoder. (Of course, we have not evaluated every monitor on the market.)
  • Page 203 4-13 OPTIMOD-FM DIGITAL MAINTENANCE P) Using the stereo monitor, verify that pilot tone injection is between 8% and 10% modulation. If it is outside these parameters, adjust it to 9% via S ETUP TEREO NCODER ILOT If the measured pilot level varies by more than a few tenths of percent from the pilot level indicated, this indicates there may be a problem elsewhere —...

  • Page 205: Section 5 Troubleshooting

    Particularly if you are using a long run of coaxial cable between the 8300 and the exciter, a ground loop may inject noise into the exciter’s composite input — espe- cially if the exciter’s input is unbalanced. The Orban CIT25 Composite Isolation Trans- former can almost always cure this problem.

  • Page 206: Audible Distortion On-Air

    Many commercial monitors have this problem, but most of these problem units can be modified to indicate peak levels accurately. Orban uses the Belar “Wizard” series of DSP-based monitors internally for testing, because these units do not have this difficulty.

  • Page 207: Whistle On Air, Perhaps Only In Stereo Reception

    STL may only be 70-75 dB. In this case, it is wise to use the Orban 8200ST Studio AGC to perform the AGC func- tion prior to the STL transmitter and to control the STL's peak modulation. This will optimize the signal-to-noise ratio of the entire transmission system.

  • Page 208: Interference From Stereo Into Sca

    TROUBLESHOOTING ORBAN MODEL 8300 Interference from stereo into SCA A properly operating 8300 generates an immaculately clean baseband, with pro- gram-correlated noise below –80 dB above 57 kHz even when the composite limiter is used aggressively. If the 8300 and the rest of the transmission system are operat- ing correctly, subcarriers should experience no interference.

  • Page 209: Dull Sound

    First, verify that a problem really exists by using a second frequency-measuring de- vice and/or verifying the problem with a monitoring service. If the problem is real, contact Orban Customer Service for a crystal replacement; there is no frequency trim available.

  • Page 210: L-R (Stereo Difference Channel) Will Not Null With Monophonic Input

    TROUBLESHOOTING ORBAN MODEL 8300 L–R (Stereo Difference Channel) Will Not Null With Monophonic Input This problem is often caused by relative phase shifts between the left and right channels prior to the 8300’s input. This will cause innocuous linear crosstalk between the stereo main and subchannels.

  • Page 211: Troubleshooting Connections

    OPTIMOD-FM DIGITAL TROUBLESHOOTING  Software Updates via Modem: If you are updating via the modem, do not change the “connection type” parameter on the 8300 while the modem is con- nected or attempting to connect.  Security Passcode: An A (administrator) security passcode is re- CREENS quired for upgrading, regardless of whether you are using a Direct, Modem, or...

  • Page 212: Os-Specific Troubleshooting Advice

    TROUBLESHOOTING ORBAN MODEL 8300 and the default gateway defaults to the 8300 unit’s IP address. This means that all existing network connections point to the 8300 unit. To correct this: A) In Start / Settings / Network and Dialup Connections, open the direct or mo- dem connection you are using to connect to 8300.
  • Page 213 OPTIMOD-FM DIGITAL TROUBLESHOOTING J) Click the “Advanced…” button on the “Internet Protocol (TCP/IP)” Window. K) In the “Advanced TCP/IP Settings” select the “General” Tab; make sure that no check boxes are checked. L) In the “Advanced TCP/IP Settings,” select the “DNS” Tab. M) In the “Advanced TCP/IP Settings,”...

  • Page 214: Troubleshooting Windows 2000 Modem Connect

    5-10 TROUBLESHOOTING ORBAN MODEL 8300 Troubleshooting Windows 2000 Modem Connect: If you are having trouble establishing a connection, check your New Connection’s properties to make sure they are set up correctly: A) Click “Start / Programs / Accessories / Communications / Network and Dialup Connections”...

  • Page 215: Troubleshooting Windows Xp Direct Connect

    5-11 OPTIMOD-FM DIGITAL TROUBLESHOOTING Troubleshooting Windows XP Direct Connect: If you are having trouble establishing a connection, check your New Connection’s properties to make sure they are set up correctly: A) Click “Start / Programs / Accessories / Communications / Network Connections” to bring up the Network Connections screen.

  • Page 216: Troubleshooting Ic Opamps

    5-12 TROUBLESHOOTING ORBAN MODEL 8300 A) Click “Start / Programs / Accessories / Communications / Network Connections” to bring up the Network Connections screen. B) In the “Network Connections” window, right-click “Optimod 8300 - Modem” and choose “Properties.” The “Properties” window opens for “Optimod 8300 - Modem.”...

  • Page 217: Technical Support

    After expiration of the warranty, a reasonable charge will be made for parts, labor, and packing if you choose to use the factory service facility. Returned units will be returned C.O.D. if the unit is not under warranty. Orban will...

  • Page 218: Shipping Instructions

    5-14 TROUBLESHOOTING ORBAN MODEL 8300 pay return shipping if the unit is still under warranty. In all cases, the customer pays transportation charges to the factory (which are usually quite nominal). Shipping Instructions Use the original packing material if it is available. If it is not, use a sturdy, double- walled carton no smaller than 7...

  • Page 219: Section 6 Technical Data

    OPTIMOD-FM DIGITAL TECHNICAL DATA Section 6 Technical Data Specifications It is impossible to characterize the listening quality of even the simplest limiter or compressor based on specifications, because such specifications cannot adequately describe the crucial dynamic processes that occur under program conditions. There- fore, the only way to evaluate the sound of an audio processor meaningfully is by subjective listening tests.

  • Page 220: Installation

    TECHNICAL DATA ORBAN MODEL 8300 Installation Delay Minimum Processing Delay: Processing structure dependent. Typically 20 ms for optimum 5-band using “MX” presets, 15 ms for optimum 5-band using non-MX presets, 3.7 ms for ultra-low-latency 5-band, and 17 or 22 ms for 2-band, depending on crossover structure chosen.
  • Page 221 OPTIMOD-FM DIGITAL TECHNICAL DATA Sampling Rate: 32, 44.1, 48, 88.2, or 96 kHz, automatically selected. Connector: XLR-type, female, EMI-suppressed. Pin 1 chassis ground, pins 2 and 3 trans- former balanced and floating, 110 impedance. Input Reference Level: Variable within the range of –30 dBFS to –10 dBFS. J.17 De-emphasis: Software-selectable.
  • Page 222 TECHNICAL DATA ORBAN MODEL 8300 Pilot Protection: –60 dB relative to 9% pilot injection, ±250 Hz (up to 2 dB composite proc- essing drive). Subcarrier Protection (60-100 kHz): >= 70 dB (referenced to 100% modulation; with up to 2 dB composite limiting drive; measured with 800 line FFT analyzer using “maximum peak hold”...

  • Page 223: Circuit Description

    RFI / EMI: Tested according to Cenelec procedures. FCC Part 15 Class A device. Shipping Weight: 19 lbs / 8.7 kg Warranty Two Years, Parts and Service: Subject to the limitations set forth in Orban's Standard Warranty Agreement. Because engineering improvements are ongoing, specifications are subject to change with- out notice.

  • Page 224: Control Circuits

    30 seconds until the DSP code download has finished. If you hear a 30-second audio mute on air, you can assume that the 8300 has rebooted for some reason. Be pre- pared to convey this fact to Orban customer service if you call for technical assis- tance.

  • Page 225: User Control Interface And Lcd Display Circuits

    OPTIMOD-FM DIGITAL TECHNICAL DATA User Control Interface and LCD Display Circuits The user control interface enables the user to control the 8300’s functionality. A rear panel GPI connector allows optically isolated remote control of certain functions, such as recalling presets, via contact closure. An RS-232 serial port and an Ethernet port allow you to connect a modem or computer to the 8300.

  • Page 226: Input Circuits

    TECHNICAL DATA ORBAN MODEL 8300 these components through the general-purpose bus. 3. LED Meter Circuits Located on display board The meter LEDs are arranged in an 8x16 matrix, in rows and columns. Each row of LEDs in the matrix has a 1/8 duty cycle ON time. The rows are multi- plexed at a fast rate so that the meters appear continuously illuminated.

  • Page 227: Output Circuits

    The A/D oversamples the audio, applies noise shaping, and filters and decimates to 64 kHz sample rate. (An Orban-designed synchronous sample rate converter in the 8300’s DSP performs the final decimation to 32 kHz. This ensures the flattest frequency response to 15 kHz without aliasing.)
  • Page 228 6-10 TECHNICAL DATA ORBAN MODEL 8300 anced output. The digital output transmitter accepts the digital audio words from the output sample rate converter (SRC) and transmits them in AES3-format digital audio signals on the digital output connector. 1. Stereo Digital-to-Analog (D/A) Converter Located on Input/Output board The D/A, IC211, is a stereo, 24-bit delta-sigma converter.
  • Page 229 6-11 OPTIMOD-FM DIGITAL TECHNICAL DATA described. 3. Digital Sample Rate Converter (SRC) and Output Transmitter Located on Input/Output board An integrated output sample rate converter (SRC) and AES3 line driver chip, IC502, converts the 32 kHz 8300 system sample rate to any of the standard 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz rates, and also contains a digital au- dio interface transmitter to encode digital audio signals using the AES3 interface format (AES3-1992).

  • Page 230: Dsp Circuit

    During system initialization, the SC520 queries the DSP hardware about its opera- tional status and will display an error message on-screen if the DSP fails to initialize normally. Please note any such messages and be ready to report them to Orban Cus- tomer Service.

  • Page 231: Abbreviations

    6-13 OPTIMOD-FM DIGITAL TECHNICAL DATA Abbreviations Some of the abbreviations used in this manual may not be familiar to all readers: A/D (or A to D) analog-to-digital converter Audio Engineering Society automatic gain control analog input analog output balanced (refers to an audio connection with two active conductors and one shield sur- rounding them).

  • Page 232: Parts List

    6-14 TECHNICAL DATA ORBAN MODEL 8300 inductor / capacitor liquid crystal display light-emitting diode low-frequency low-pass level midrange / high-frequency midrange / low-frequency modulation N&D noise and distortion N / C no connection OSHOOT overshoot IBM-compatible personal computer pulse code modulation...

  • Page 233: Obtaining Spare Parts

    Consult the factory if the listing of a part includes the note “selected” or “realignment required.” Orban normally maintains an inventory of tested, exact replacement parts that can be supplied quickly at nominal cost. Standardized spare parts kits are also available.
  • Page 234 6-16 TECHNICAL DATA ORBAN MODEL 8300 PART # DESCRIPTION COMPONENT IDENTIFIER R1, 2, 3, 7, 8, 9, 10, 11, 12, 13, 14, 20, 27, 20132.100.01 RESISTOR, 100K, 0805 29, 31, 32, 34, 36, 38, 40, 66, 85, 86, 87, 88, 89, 90, 91, 92, 93 20132.332.01...

  • Page 235: Cpu Module

    6-17 OPTIMOD-FM DIGITAL TECHNICAL DATA PART # DESCRIPTION COMPONENT IDENTIFIER PIN, SINGLE RW CONNECTOR, STR, DBL 27451.005.01 ROW, 26 PIN HEADER, STR, DBLROW, 27451.024.01 PCMOUNT CONNECTOR MOL53047-0510 27500.000.01 5PIN 28086.000.01 CRYSTAL, 4.0 MHz, HC49US 29521.000.01 INDUCTOR, 3.9UH, JM391K L1, L2, L3 CIRCUIT BOARD, BASE 32166.000.06 BOARD...

  • Page 236: Rs-232 Board

    6-18 TECHNICAL DATA ORBAN MODEL 8300 PART # DESCRIPTION COMPONENT, IDENTIFIER 161, 175, 176, 178, 181, 183 CAPACITOR, 21322.547.01 4.7uF,TANT,6032B CAPACITOR, 10uF 10% TANT 21325.610.01 C13, C15, C16, C18 6032-B 22101.001.01 DIODE,1N4148WT / R D1, D2, D3 IC VOLTAGE REGULATOR 24331.025.01...

  • Page 237: Power Supply

    6-19 OPTIMOD-FM DIGITAL TECHNICAL DATA Power Supply PART # DESCRIPTION COMPONENT IDENTIFIER 10012.404.01 SCREW MS SEM P / P 4-40 X ¼ TRANSISTOR, MOUNTING KIT, TO 15025.000.01 HW1, HW2, HW3, HW4, HW5 LED MOUNT, 1 POSITION, 0.240" 15061.005.01 H1, H2, H3, H4 HIGH 20020.025.01 RESISTOR, ¼W, 0 OHM, (JUMPER)

  • Page 238: Input/Output (I/O) Board

    6-20 TECHNICAL DATA ORBAN MODEL 8300 PART # DESCRIPTION COMPONENT IDENTIFIER HEADER, STR, DOUBLE ROW, 27451.004.01 PCMOUNT HEADER, STR, DOUBLE ROW, 27451.024.01 PCMOUNT CONNECTOR, VERTICAL, HEADER, 27493.000.01 6 POS. TERM, CRIMP, RING, INSULATED, 27711.206.01 28004.150.01 FUSE, 3AG, SLOBLO, ½ AMP 28112.003.01...
  • Page 239 6-21 OPTIMOD-FM DIGITAL TECHNICAL DATA PART # DESCRIPTION COMPONENT IDENTIFIER RESISTOR, 1/8W, 1%, 768 OHM, 20129.768.01 R111, R126 0805 20130.162.01 RESISTOR, 1/8W, 1%, 1.62K, 0805 R132, R153, R156, R157 20130.210.01 RESISTOR, 1/8W, 1%, 2.10K, 0805 R112, R127 20130.249.01 RESISTOR, 1/8W, 1%, 2.49K, 0805 R300 20130.348.01 RESISTOR, 1/8W, 1%, 3.48K, 0805...
  • Page 240 6-22 TECHNICAL DATA ORBAN MODEL 8300 PART # DESCRIPTION COMPONENT IDENTIFIER CAPACITOR, NPO, 5%, 100V, 33pF- 21145.000.01 C231, C335, C351, C406 1206 21156.020.01 CAPACITOR, 12pF, 1206 C223, C229, C334, C402 21172.222.01 CAPACITOR, 2200pF 50V NPO 1206 C512, C518 21172.103.01 CAPACITOR, 0.01uF 50V NPO 1206 C400 21173.823.01...

  • Page 241: Dsp Board

    6-23 OPTIMOD-FM DIGITAL TECHNICAL DATA PART # DESCRIPTION COMPONENT IDENTIFIER IC100, IC102, IC207, IC208, IC1, 27147.008.01 IC, SOCKET, DIP, 8-PINS, DUAL IC2, IC3 27147.016.01 IC, SOCKET, DIP, 16-PIN, DUAL IC101, 103 27147.020.01 IC, SOCKET, DIP, 20-PIN, DUAL IC602 27174.044.01 IC, SOCKET, 44-PIN, LOW PROFILE IC503 CONNECTOR, JUMPER, RECPT, 27401.000.01...
  • Page 242 6-24 TECHNICAL DATA ORBAN MODEL 8300 PART # DESCRIPTION COMPONENT IDENTIFIER CAPACITOR, 8200pF, ±15%, 1206, C101, C103, C105, C107, C109, C111, 21137.282.01 C113, C115 C102, C104, C106, C108, C110, C112, 21137.447.01 CAPACITOR, 0.47uF 25V 10% 1206 C114, C116 C701, C702, C703, C704, C705, C706,...

  • Page 243: Display Board

    6-25 OPTIMOD-FM DIGITAL TECHNICAL DATA Display Board PART # DESCRIPTION COMPONENT IDENTIFIER SUBASSEMBLY, FLAT CABLE- 42007.080 26P- 8" 15062.390.01 LED SPACER, 390 HIGH RESISTOR, TF, 1/8W, 1%, 110 20122.110.01 R17-R24 RESISTOR, TF, 1/8W, 1%, 20124.100.01 R29, R30 SURFACE-MOUNT 10K 20125.100.01 RESISTOR, TF, 1/8W, 1%, 100K R25, R26, R27, R28 RESISTOR, NETWORK, DIL,...
  • Page 244 6-26 TECHNICAL DATA ORBAN MODEL 8300 Function Description Drawing Page Circuit Board Locator and Basic In- Top view Chassis 6-29 terconnections (not to scale) Base Board Glue logic; supports CPU module Parts Locator 6-30 and RS-232 daughterboard. Drawing Contains: System Connections...
  • Page 245 6-27 OPTIMOD-FM DIGITAL TECHNICAL DATA Power Distribution Schematic 6 of 7 6-58 No-Connects Schematic 7 of 7 6-59 Display Board Front-Panel LCD, LEDs, Buttons, Parts Locator 6-60 and Rotary Encoder Drawing Schematic 1 of 1 6-61 DSP Block Shows signal processing 6-62 Diagram...
  • Page 247 6-29 OPTIMOD-FM DIGITAL TECHNICAL DATA...
  • Page 248 6-30 TECHNICAL DATA ORBAN MODEL 8300 Base Board Parts Locator Drawing (for schematic 62165.000.06)
  • Page 249 6-31 OPTIMOD-FM DIGITAL TECHNICAL DATA +5VD +RAW SD(0..15) FROM POWER SUPPLY 2-1A, 1-5A TV11 TV12 TV13 TV14 +5VD /GPIOWR 74ACT245DW 2-1A, 1-5D SIN2 /GPIORD 2-1A, 1-5D +5vD SOUT2 /FP_BUSEN 2-1B /RTS2 FPLED1 FP_D0 4-2B /CTS2 FPLED2 FP_D1 +RAW 4-2B DISPLAY FP_D2 2-1D AUX_COMM...
  • Page 250 6-32 TECHNICAL DATA ORBAN MODEL 8300 /MEMCS16 2-1B /MEMWR 2-1B /MEMRD 2-1B /SMEMWR 3-7B /SMEMRD 3-7B /SBHE TV66 /GPIOCS 2-1B /GPIOCS16 2-1B /GPIOWR 2-1A, 3-6D /GPIORD 3-6D, 2-1A +5VD RSTDRV 2-1B, 3-7C GPRDY TV67 GPAEN JTAG_TRIG TV85 2-1A, 3-7B GPTC...
  • Page 251 6-33 OPTIMOD-FM DIGITAL TECHNICAL DATA Revision History: 62165.000.06 /MEMCS16 2-1B ECO# DATE DESCRIPTION DONE CHECKED /MEMWR 2-1B #2984 06/19/02 Release to Production /MEMRD 2-1B #3022 12/19/02 Changed Power Supply connector /SMEMWR 3-7C /SMEMRD #3033 01/13/03 Implemented Brian’s hit list 3-7C /SBHE #3077 05/27/03...
  • Page 252 6-34 TECHNICAL DATA ORBAN MODEL 8300 +RAW +5VD —5vA +5vA -15vA +15vA +15vA +RAW LP2987IM-5.0 2.00K N.C. Plus15V OUTPUT INPUT 1N4148 SENSE /SHUTDOWN Plus15V /ERROR DELAY +RAW 10.0K 332K 1N4148 Vcc_PSM Minus15V 14.0K 10.0K BAT54C DGND PMA0 BAT54C PMA1 Plus5VA PMA2 10.0K...
  • Page 253 6-35 OPTIMOD-FM DIGITAL TECHNICAL DATA FP_ROW-COL 3-1B DISPLAY 3-6D /LED ENC1 3-1B 3-1B /ENCODER ENC2 3-1B 3-1B LED_PULSE PWRFAIL 4-2C +5VD 3-1B 74ACT245DW ERROR +5VD +5VD +5VD 4-2C /GPIORD To Serial I/O Card /AUX_BUSEN R104 TV22 TV23 R103 +5VD 10.0K U11g U13g 10.0K...
  • Page 254 6-36 TECHNICAL DATA ORBAN MODEL 8300 CPU Module...
  • Page 255 6-37 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3 VDC 150 ohm, 5%, 0805 150 ohm, 5%, 0805 4.7 k, 5%, CTS 745?083472J PCI_AD[0..31] PCI_AD31 PCI_AD31 AD31 AD31 Req4-n PCI_AD30 PCI_AD30 +3.3 VDC Req4-n AD30 AD30 Req3-n PCI_AD29 PCI_AD29 Req3-n AD29 AD29 Req2-n PCI_AD28 PCI_AD28 Req2-n...
  • Page 256 6-38 TECHNICAL DATA ORBAN MODEL 8300 +5 VDC +5 VDC +5 VDC GP_SMemRd-n = GPA20 + GPA21 + GPA22 + GPA23 + GPA24 + GP_MemRd-n GPA23 GP_SMemWr-n Out0 GP_SMemWr-n = GPA20 + GPA21 + GPA22 + GPA23 + GPA24 + GP_MemWr-n...
  • Page 257 6-39 OPTIMOD-FM DIGITAL TECHNICAL DATA DRAM Circuitry MD[0..31] MA[0..12] MA12 MA12 MD15 MA12 MD31 MA12 DQ15 DQ15 MA11 MA11 MD14 MA11 MD30 MA11 DQ14 DQ14 MD31 MA10 MA10 MD13 MA10 MD29 MD31 MA10 A10/AP DQ13 A10/AP DQ13 MD30 MD12 MD28 MD30 DQ12 DQ12...
  • Page 258 6-40 TECHNICAL DATA ORBAN MODEL 8300 +3.3 VDC 4.75 k, 5%, 0805 Trig/Trace AF25 AC13 Trig/Trace BR/TC AF23 AD24 BR/TC JTAG_TMS AE21 JTAG_TMS JTAG_TDI AE25 AF21 JTAG_TDI JTAG_TCK AE24 AD21 JTAG_TCK Ring2-n AD26 PIO31/Ring2-n DCD2-n AD25 PIO30/DCD2-n DSR2-n PIO29/DSR2-n CTS2-n...
  • Page 259 6-41 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3 VDC +2.5 VDC +3.3 VDC +3.3 VDC +3.3 VDC +5 VDC C201 Res3 See Table Res2 Res1 Vin Vout +3.3 VDC Vccq 1 uf 10 uf, low ESR Vssq Vddq Vssq Vddq Gnd Gnd FSGnd FSVdd Vssq...
  • Page 260 6-42 TECHNICAL DATA ORBAN MODEL 8300 8300 RS232 BOARD PARTS LOCATOR...
  • Page 261 6-43 OPTIMOD-FM DIGITAL TECHNICAL DATA +5VD SOCKET 0.1uF 24 PIN DIP 0.1uF MAX208ECNG 0.1uF 0.1uF 0.1uF T1 IN T1 OUT T2 IN T2 OUT T3 IN T3 OUT T4 IN T4 OUT R1 OUT R1 IN R2 OUT R2 IN R3 OUT R3 IN +5VD...
  • Page 262 6-44 TECHNICAL DATA ORBAN MODEL 8300 8300 POWER SUPPLY PARTS LOCATOR...
  • Page 263 6-45 OPTIMOD-FM DIGITAL TECHNICAL DATA Plus15V Gnd Lift CR11 CR15 Mounting Mounting 1N4004 1N4004 Plus15V U3 +5v Reg +15v Reg 15025.000.01 15025.000.01 MC78M05CT MC78M15CT PlusRAW 0.1 F, 50v Plus5VA AGND (Monitor) Plus15V Chassis Ground Pigtail, 3" long (Monitor) Minus15V (Lug w/Green AWG 18) (Monitor) Minus5VA AGND...
  • Page 264 6-46 TECHNICAL DATA ORBAN MODEL 8300 8300 I/O BOARD PARTS LOCATOR...
  • Page 265 6-47 OPTIMOD-FM DIGITAL TECHNICAL DATA LEFT ANALOG INPUT +15V R130 R131 J100 FEMALE L100 IC100A 3.65K 1.50K 1% FILTER R100 L101 R101 OPA2134PA 0.1% C108 E201 1.00K H 1200uH 4.99K SHELL C101 1000PF C100 47PF 47PF -15V 5%,100V 0.001UF 5%,100V R132 TP100 CR100...
  • Page 266 6-48 TECHNICAL DATA ORBAN MODEL 8300 +5VA R232 MCLK +5VA 10OHM 1% (SHT6) C201 1.0UF R238 + C210 + C213 C211 C212 C214 C232 110OHM 10UF 0.1UF 0.1UF 10UF 0.1UF 1.0UF IC203 C203 Butterworth AGND6 AGND6 AGND5 AGND5 C231 0.1UF 50V...
  • Page 267 6-49 OPTIMOD-FM DIGITAL TECHNICAL DATA R330 110OHM C307 C306 -5VA 0.1UF 10UF C304 IC300 C351 AGND7 COMP_DATA 33PF (SHT6) DATA -VCC 100UF 25V AGND7 5%,100V COMP_BCLK BCLK REF DC C305 +5VA (SHT6) R300 C334 C335 -5VA C409 R304 R305 AGND7 2.49K 1% -VDD SERVO DC...
  • Page 268 6-50 TECHNICAL DATA ORBAN MODEL 8300 E550 PICSDI /AESINCS AES/EBU PICSDI AES/EBU DIGITAL PICSCK DIGITAL /AESOUTCS R501 INPUT OUTPUT PICSDO TP502 49.9K J500 R513 J502 FEMALE L500 49.9K L504 MALE T502 TP500 FILTER PICSCK FILTER C500 SC937 TP504 R517 IC500...
  • Page 269 6-51 OPTIMOD-FM DIGITAL TECHNICAL DATA DSP BOARD CONNECTOR +5VD IC603B E607 J600 C652 IC603D 18.432MHZA DOUT_FCLK PILOT_WCLK 1000PF (SHT5) (SHT5) (SHT4) 12.288MHZA BASE BOARD 18.432MHZ PILOT_BCLK 1%,50V (SHT5) (SHT4) CONNECTOR 36.864MHZ PILOT_DATA 74HC14A (SHT4) 24.576MHZ COMP_DATA IC601 74HC14A R601 JP600 (SHT4) IC603E 33.8688MHZ...
  • Page 270 6-52 TECHNICAL DATA ORBAN MODEL 8300 DSP BOARD PARTS LOCATOR DRAWING 32170.000.14...
  • Page 271 6-53 OPTIMOD-FM DIGITAL TECHNICAL DATA FSYNCB FSYNCA (SHT7) (SHT7) BCLKB BCLKA (SHT7) (SHT7) EXTALB EXTALA (SHT7) (SHT7) IBCLK (SHT7) IFSYNC (SHT7) IDATA1 (SHT7) IDATA0 (SHT7) IC101A IC102A IC103A IC104A E30 E31 DSP56362-120 DSP56362-120 DSP56362-120 DSP56362-120 SD10 SDO0 SD10 SDO0 SD10 SDO0 SD10 SDO0...
  • Page 272 6-54 TECHNICAL DATA ORBAN MODEL 8300 A[0..2] (SHT6) D[0..7] (SHT6,7) IC101B IC102B IC103B IC104B DSP56362-120 DSP56362-120 DSP56362-120 DSP56362-120 (SHT6) (SHT6) (SHT6) (SHT6) DSPEN0 DSPEN1 DSPEN2 DSPEN3 (SHT6) (SHT6) (SHT6) (SHT6) HOREQ HOREQ HOREQ HOREQ HACK HACK HACK HACK HACK HACK...
  • Page 273 6-55 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3V IC101D +3.3V IC102D +3.3V IC103D +3.3V IC104D DSP56362-120 DSP56362-120 DSP56362-120 DSP56362-120 +3.3V +3.3V +3.3V +3.3V (SHT6) (SHT6) (SHT6) (SHT6) MISO MISO MISO MISO (SHT6) (SHT6) (SHT6) (SHT6) VCCD MOS1 VCCD MOS1 VCCD MOS1 VCCD MOS1 (SHT6) (SHT6)
  • Page 274 6-56 TECHNICAL DATA ORBAN MODEL 8300 IC503 IC502 EPM7064AETC44-10 74LVX4245 +3.3V +3.3V +3.3V P1TDI +5VB (SHT7) DO NOT STUFF J503 +3.3V +3.3V R506 75.0 OHM R502 R503 SA[3..9] IC504 100K 100K BD[0..7] 74HC374 J503 (SHT7) PTMS HDR 2X2 VCCINT D[0..7]...
  • Page 275 6-57 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3V IC604 +3.3V IC603 EPM7256ATC100-10 +3.3V EXTALA CLKREF Ferrite 0805 (SHT2) R613 EXTALB IMCLK CLK1 (SHT2) FSYNCA CLK2 75.0 OHM (SHT2) FSYNCB CLK3 (SHT2) BCLKA CLK4 (SHT2) +3.3V +3.3V BCLKB IC802 (SHT2) IFSYNC CLKOUT (SHT2) PLL1700E IC807G IBCLK...
  • Page 276 6-58 TECHNICAL DATA ORBAN MODEL 8300 +3.3V C709 C711 C712 C713 C714 C715 C716 C718 C719 C720 C723 C724 C725 C726 C727 C732 C733 C734 C739 C740 C741 C742 C744 C751 C754 C756 C758 C759 C761 C762 C771 C772 C773 C774 0.1UF...
  • Page 277 6-59 OPTIMOD-FM DIGITAL TECHNICAL DATA IC101C IC102C IC103C IC104C DSP56362-120 DSP56362-120 DSP56362-120 DSP56362-120 AA0/RAS0 AA0/RAS0 AA0/RAS0 AA0/RAS0 AA0/RAS1 AA0/RAS1 AA0/RAS1 AA0/RAS1 AA0/RAS2 AA0/RAS2 AA0/RAS2 AA0/RAS2 AA0/RAS3 AA0/RAS3 AA0/RAS3 AA0/RAS3 +3.3V +3.3V +3.3V R301 R302 R303 10.0K 10.0K 10.0K +3.3V R304 10.0K IC106C IC105C...
  • Page 278 6-60 TECHNICAL DATA ORBAN MODEL 8300 8300 DISPLAY BOARD PARTS LOCATOR...
  • Page 279 6-61 OPTIMOD-FM DIGITAL TECHNICAL DATA DISPLAY BOARD...
  • Page 280 6-62 TECHNICAL DATA ORBAN MODEL 8300...

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