Orban OPTIMOD-FM 8500S Operating Manual
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Orban OPTIMOD-FM 8500S Operating Manual

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Operating Manual
OPTIMOD-FM
8500S
Digital Audio Processor
Version 1.0 Software

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Summary of Contents for Orban OPTIMOD-FM 8500S

  • Page 1 Operating Manual OPTIMOD-FM 8500S Digital Audio Processor Version 1.0 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 Ari- zona business hours. The number is (1) (480) 403-8300.
  • Page 6 Orban and Optimod are registered trademarks. All trademarks are property of their respective companies. This manual was published February 2016. © Copyright Orban 8350 East Evans Suite C4, Scottsdale, AZ 85260 USA Phone: +1 (480) 403-8300; Fax: +1 (480) 403-8302; E-Mail: custserv@orban.com; Site: www.orban.com...
  • Page 7 Operating Manual OPTIMOD-FM 8500S Digital Audio Processor Version 1.0 Software...

  • Page 8: Table Of Contents

    Table of Contents Index.........................0-9 Section Introduction ............................1-1 .......................1-1 BOUT THIS ANUAL OPTIMOD-FM 8500S D .............1-1 IGITAL UDIO ROCESSOR User-Friendly Interface....................1-2 Absolute Control of Peak Modulation..............1-3 Flexible Configuration ....................1-4 Adaptability through Multiple Audio Processing Structures .......1-6 Controllable ......................1-6 Upgradeable to 8600S.....................1-7 OPTIMOD-FM ....................1-7...
  • Page 9 Grounding......................2-11 Power Ground......................2-11 Circuit Ground .......................2-12 ) ............2-12 TUDIO EVEL ONTROLLER NSTALLATION OPTIONAL If you are using Orban 8200ST external AGC ............2-12 Figure 2-4: 8200ST Jumper Settings (*Factory Configuration) ........2-13 .........................2-15 UICK ETUP I/O S ..................2-26 NALOG AND IGITAL ETUP 8500S’...
  • Page 10 8500S PC R ............2-57 NSTALLING EMOTE ONTROL OFTWARE Installing the Necessary Windows Services............2-57 Check Hardware Requirements................2-58 Running the Orban Installer Program ..............2-59 Setting Up Ethernet, LAN, and VPN Connections ..........2-59 Conclusion......................2-60 .............2-61 PPENDIX ETTING ERIAL OMMUNICATIONS Preparing for Communication through Null Modem Cable ......2-61 Connecting Using Windows 2000 Direct Serial Connection:......2-61...
  • Page 11 Two-Band Purist Processing ..................3-13 Digital Radio Processing..................3-13 BS.1770 Compliance for Digital Radio ..............3-14 Input/Output Delay ....................3-14 8500S’ ..................3-15 USTOMIZING THE OUND Basic Modify......................3-15 Advanced Modify ....................3-16 Gain Reduction Metering ..................3-17 To Create or Save a User Preset ................3-17 ................3-18 BOUT THE ROCESSING TRUCTURES ...................3-19...
  • Page 12 Multiplex Power Control in Stand-Alone Stereo Encoder Mode......... 3-76 .........................3-77 ODES Table 3-13: Test Modes ....................3-77 ................3-78 ETTING THE OUND Summary ......................... 3-80 8500S PC R ............3-80 SING THE EMOTE ONTROL OFTWARE To set up a new connection:.................3-81 To initiate communication:...................3-81 To modify a control setting: .................3-82 To recall a preset:....................3-82 To save a user preset you have created: ..............3-83...
  • Page 13 Audio Mute Occurs When Switching Between UL and Non-UL Presets ......5-6 Talent Complains About Delay in Their Headphones............. 5-6 HD Output Sounds Too Bright ..................5-6 Harsh Sibilance (“Ess” Sounds) in the HD Channel ............5-7 HD and FM Levels Do Not Match When the Receiver Crossfades ........5-7 Digital Radio Loudness Cannot be Set Using the Digital Output 100% Peak Level Control..........................
  • Page 14 Function Description Drawing Page Chassis Circuit Board Locator and Basic In- Top view 6-27 terconnections (not to scale) Control board Control microprocessor. Services Parts Locator 6-28 front panel, serial port, Ethernet, Drawing and DSP+I/O board. Contains: General Purpose bus, address de- Schematic 1 of 5 6-29 coder, I/O+DSP interface...

  • Page 15: Index

    Index Analog delay remote control 2- · 43 analog fallback 2- · 28 analog I/O 1- · 10 19 K Ref control 2- · 10 analog input circuit description 6- · 9 ref level, I/O setup 2- · 26 analog input 2- · 6 analog landline 1- ·...
  • Page 16 Multiband 3- · 58 activate via GPI 2- · 43 Bandwidth Setting HD 3- · 68 base board removing 4- · 3 cable replacing 4- · 4 shielding 2- · 11 baseband spectrum 5- · 4 type recommended for analog I/O 2- · 5 Baseband spectrum diagram 3- ·...
  • Page 17 pilot tone protection 2- · 9 AGC 3- · 37 Composite meter 3- · 2 Band 1 / Band 2 3- · 62 composite output cable specification 2- · 8 I/O setup 2- · 20, 29 impedance 2- · 8 D/A converter level adjustment range 2- ·...
  • Page 18 control via GPI 2- · 43 Defeating 2- · 28 diversity delay 2- · 29, 30, 38 Firewall 2- · 59, 81 diversity delay 3- · 67, 75 Firmware diversity delay 5- · 2 updating 8500 2- · 92 five-band DJ Bass control 3- ·...
  • Page 19 connections 2- · 2 I/O board replacing 4- · 4 Half-cosine interpolation limiter 3- · 11, IC opamps troubleshooting 5- · 14 Hard Clip Shape 3- · 41 Idle Gain 3- · 37 Independent mode 3- · 64 Bandwidth 3- · 68 input cannot set output for 5- ·...
  • Page 20 adjusting HD/FM 5- · 7 Jensen transformer 1- · 16 match HD and FM channels 3- · 68, 71 Loudness and distortion 3- · 4 loudness control in digital radio 2- · 35 Latency loudness meter 1- · 23 Low delay presets 3- · 21 Loudness Safety Limiter Ultra-low-delay presets 3- ·...
  • Page 21 2- · 42 troubleshooting 5- · 3 null modem cable Orban installer program 2- · 59 PC board locator diagram 6- · 27 communicating through 2- · 61 null modem cable 2- · 58 PC control security 1- ·...
  • Page 22 PuTTY power supply direct control using 2- · 48 circuit description 6- · 13 PuTTY 6- · 48 Orban part # 6- · 14 testing 4- · 7 power supply board reattaching 4 · 4 pre-emphasis quick setup 2- · 15 defeating 2- ·...
  • Page 23 Release screen display 3- · 1 screens AGC Bass 3- · 37 Multiband 3- · 54 System Setup 2- · 15 Multiband Delta 3- · 62 scripted control 2- · 49 remote Security PC Remote software 3- · 80 lock immediately 2- · 41 remote control security 1- ·...
  • Page 24 overriding 3- · 63 Speech/music detector 3- · 9, 39, 40, 63 Sports format 3- · 25 Talk format 3- · 25 Tally output GPI control 2- · 43 Programming 2- · 25 SSB mode 3- · 10 Silence sense threshold 2- · 24 Stanford Research Systems 4- ·...
  • Page 25 whistle on-air troubleshooting 5- · 4 Window Release 3- · 36 Ultra-low Latency Window Size 3- · 36 and clipping distortion controller 3- · 9 Windows and compressor look-ahead 3- · 9 installing services 2- · 57 Ultra-low-latency presets 3- · 19 Windows 2000 unlock front panel 2- ·...

  • Page 27: 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 28: User-Friendly Interface

    96 kbps and above. OPTIMOD-FM 8500S/FM is the same as the 8500S/HD except that it does not provide digital radio processing. The 8500S/FM can be upgraded to an 8500S/HD in the field via the 8500SUPG/HD upgrade kit, which can be purchased from your Orban dealer.

  • Page 29: Absolute Control Of Peak Modulation

    OPTIMOD-FM DIGITAL INTRODUCTION Absolute Control of Peak Modulation • The 8500S provides universal transmitter protection and audio processing for FM broadcast. It can be configured to interface ideally with any commonly found transmission system in the world, analog or digital. •...

  • Page 30: Flexible Configuration

    • OPTIMOD-FM 8500S is supplied with analog and AES3 digital inputs and outputs. The digital input and the two digital outputs are equipped with sam- ple-rate converters and can operate at 32 kHz, 44.1 kHz, 48 kHz, 88.1 kHz, and 96 kHz sample rates.
  • Page 31 FM exciter. Both the 8500S and 8500S/FM offer this feature, making it con- venient to use the 8500S/FM in dual-processor HD installations where the digital channel receives independent processing from a processor like Orban’s Optimod- DAB or Optimod-PC. Each output (Analog, Digital 1, Digital 2, Composite) can be independently configured to emit the delayed or undelayed signal.

  • Page 32: Adaptability Through Multiple Audio Processing Structures

    A special Two-Band preset creates a no-compromise “Protect” function that is functionally similar to the “Protect” structures in earlier Orban digital processors. • The 8500S can increase the density and loudness of the program material by multiband compression, limiting, and clipping—improving the consistency of the...

  • Page 33: Upgradeable To 8600S

    Via a purchased upgrade kit, the 8500S can be upgraded to full 8600S func- tionality via a network connection without removing the unit from the rack. This upgrade adds Orban’s exclusive MX limiter technology, which uses a built-in psychoacoustic model and other advanced signal processing techniques to add about 2.5 dB more high frequency power handling capability, lower distortion,...

  • Page 34: Factory Presets

    INTRODUCTION ORBAN MODEL 8500S Factory Presets The Factory Presets are our “factory recommended settings” for various program formats or types. The description indicates the processing structure and the type of processing. Each Factory Preset on the Preset list is really a library of more than 20...

  • Page 35: Input/Output Configuration

    OPTIMOD-FM DIGITAL INTRODUCTION Input/Output Configuration The 8500S offers: • Up to two digital AES left/right input and outputs. (The sync reference input can be configured for use as an AES3id input to the 8500S’s stereo encoder and is useful when implementing a ratings encoder loop-through.) •...

  • Page 36: Analog Left/Right Input/Output

    1-10 INTRODUCTION ORBAN MODEL 8500S Level control of the AES3 input is accomplished via software control through System Setup (see step 5 on page 2-28) or through PC Remote. Both analog and digital outputs are active continuously. The 8500S’s output sample rate and 19 kHz pilot tone frequency can be locked to the 8500S’s internal crystal clock, to the sample rate present at its AES3 input, or to a...

  • Page 37: Subcarriers

    1-11 OPTIMOD-FM DIGITAL INTRODUCTION Subcarriers The stereo encoder has two unbalanced 600Ω subcarrier (SCA) inputs with rear- panel BNC connectors to accept any subcarrier at or above 23 kHz. The subcarriers are mixed into each composite output and their level is not affected by the compos- ite level control for that output.

  • Page 38: Computer Interface

    1-12 INTRODUCTION ORBAN MODEL 8500S The remote control of overshoot compensation and SCA modulation (see page 2-42) is not latching. You must supply a continuous current to the programmed remote input to hold the gain at its compensated level. Use...

  • Page 39: Rj45 Ethernet Connector

    1-13 OPTIMOD-FM DIGITAL INTRODUCTION RJ45 Ethernet Connector The 8500S can be connected to a 10, 100, or 1000 Gb/sec Ethernet network that sup- ports the TCP/IP protocol and is connected via CAT5 or CAT6 cabling. See Networking and Remote Control on page 2-44 for more information. Wordclock/10 MHz Sync Reference Input The sync reference input appears on a female BNC jack grounded to the 8500S’s chassis.

  • Page 40: Best Location For Optimod-Fm

    1-14 INTRODUCTION ORBAN MODEL 8500S 1) The system group delay must be essentially constant throughout the frequency range containing significant energy (30-15,000Hz). If low-pass filters are present, this may require the use of delay equalization. The deviation from linear-phase must not exceed ±10° from 30-15,000Hz.

  • Page 41: If The Transmitter Is Accessible

    1-15 OPTIMOD-FM DIGITAL INTRODUCTION the STL. Then feed the output of the STL receiver directly into the transmitter’s ex- citer with no intervening processing. If an uncompressed AES3 digital link is available to the transmitter, this is also an ex- cellent means of transmission, although it will not pass the effects of the 8500S’s composite processor (if you are using it).

  • Page 42: Transmission From Studio To Transmitter

    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 5518 stereo encoder, which does not add overshoot and contains its own overshoot limiter and composite limiter equivalent to the one in the 8500S when operated in its stand-alone stereo encoder mode.

  • Page 43: Digital Links

    75μs preemphasis must then be applied to the codec’s output signal. This usually oc- curs in the FM transmitter’s stereo encoder or in a stand-alone stereo encoder like an Orban 5518. Some links may use straightforward PCM (pulse-code modulation) without lossy data reduction.

  • Page 44: Composite Baseband Microwave Stls

    1-18 INTRODUCTION ORBAN MODEL 8500S 15 kHz, it can be passed without additional overshoot by equally well by any link with 32 kHz or higher sample frequency. Currently available sample rate converters use phase-linear filters (which have con- stant group delay at all frequencies). If they do not remove spectral energy from the original signal, the sample rate conversion, whether upward or downward, will not add overshoot to the signal.

  • Page 45: Dual Microwave Stls

    (if any). The 8500S can only be located at the transmitter if the signal-to- noise ratio of the 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 pro- tects the link from overload.

  • Page 46: 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 47: About Transmission Levels And Metering

    1-21 OPTIMOD-FM DIGITAL INTRODUCTION In addition, at least one other mechanism can cause the noise to become audible at the radio. OPTIMOD-FM’s multiband limiter performs an “automatic equalization” function that can radically change the frequency balance of the program. This can cause noise that would otherwise have been masked to become unmasked because the psychoacoustic masking conditions under which the masking thresholds were originally computed have changed.

  • Page 48: Transmission Levels

    1-22 INTRODUCTION ORBAN MODEL 8500S Fig. 1-1: Absolute Peak Level, VU and PPM Reading 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.

  • Page 49: Line-Up Facilities

    1-23 OPTIMOD-FM DIGITAL INTRODUCTION Line-Up Facilities Metering of Levels and Subjective Loudness The meters on the 8500S show left/right input levels and composite modulation. Left and right input level is shown on a VU-type scale (0 to –27 dB), while the metering indicates absolute instantaneous peak (much faster than a standard PPM or VU me- ter).

  • Page 50: Built-In Calibrated Line-Up Tones

    1-24 INTRODUCTION ORBAN MODEL 8500S integration time of the Short-Term Meter is always 3 seconds, while the Integrated Meter uses silence gating and its integration time is user-adjustable to 10, 20, 30, or 60 seconds. Because the meter is always monitoring program material, it integrates the previous 10, 20, 30, or 60 seconds of program material and weights all program material equally within the specified time window.

  • Page 51: Built-In Calibrated Bypass Test Mode

    1-25 OPTIMOD-FM DIGITAL INTRODUCTION driven equipment will undo the effect of the 8500S’s internal de-emphasis, so the 8500S’s output level should be adjusted such that the tone produces 100% modula- tion of the transmission link as measured after the link’s pre-emphasis filter. At 100Hz, switching the de-emphasis out or in will have negligible effect on the level appearing at the 8500S’s left and right audio outputs.

  • Page 52: Low-Delay Monitoring

    1-26 INTRODUCTION ORBAN MODEL 8500S • prevents the bass clipper from switching to Medium mode whenever speech is detected. By constraining the system in these ways, it ensures that the delay is always 13 ms. Switching the B to LLH (from any other mode) removes five milliseconds of delay from the signal path.

  • Page 53: Eas Test

    1-27 OPTIMOD-FM DIGITAL INTRODUCTION The front panel headphone jack provides output matching the Analog Output, ex- cept that it is always de-emphasized (even if the Analog Output is set with pre- emphasis). EAS Test For stations participating in the Emergency Alert System (EAS) in the United States, broadcast of EAS tones and data can be accomplished in three different ways: 1.

  • Page 54: Pc Control And Security Passcode

    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 55: International Warranty

    INTERNATIONAL WARRANTY Orban warrants Orban products against evident defects in material and workman- ship for a period of five years from the date of original purchase for use. This war- ranty does not cover damage resulting from misuse or abuse, or lack of reasonable care, or inadequate repairs performed by unauthorized service centers.

  • Page 57: 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 58: Figure 2-1: Ac Line Cord Wire Standard

    INSTALLATION ORBAN MODEL TYPE 18/3 SVT COR, TYP (3 x .82 mm WIRE COLOR CONDUCTOR NORMAL LINE BROWN BLACK NEUTRAL BLUE WHITE EARTH GND GREEN-YELLOW GREEN PLUG FOR 115 VAC (USA) TYPE H05VV - F - 0.75 CONDUCTOR WIRE COLOR...

  • Page 59: Figure 2-2: Wiring The 25-Pin Remote Interface Connector

    OPTIMOD-FM DIGITAL INSTALLATION TOPIC PAGE Audio Input and Audio Output Connections..........2-5 AES3 Digital Input and Outputs..............2-7 Composite Output and Subcarrier Inputs ..........2-7 Wordclock/10 MHz Sync Reference Input ..........2-10 AES3id Sync Input ..................2-11 Grounding ....................2-11 5. Connect remote control interface. (optional) For a full listing of 8500S’s extensive remote control provisions, refer to Remote Control Interface Programming on page 2-42.

  • Page 60: 8500S Rear Panel

    Procedures and instructions for connecting to a PC are subject to development and change. We advise you to download the latest version of this manual in pdf format from ftp.orban.com/8500S/Documentation. You can use Adobe’s .pdf reader application to open and read this file. If you do not have the .pdf reader, it is available for free download from www.adobe.com.

  • Page 61: Input And Output Connections

    OPTIMOD-FM DIGITAL INSTALLATION left, mono-right, mono-sum), selecting analog, digital or digital+J.17 input, over- shoot compensation, SCA modulation compensation, and clock synchronization. (See Remote Control Interface Programming on page 2-42.) The 8500S remote control ac- cepts a DB-25 connector. The Ethernet Port accepts a 10Mb/second or 100Mb/second Ethernet connection terminated with an RJ45 connector.

  • Page 62: Connectors

    INSTALLATION ORBAN MODEL Connectors • Input and output connectors are XLR-type connectors. In the XLR-type connectors, pin 1 is CHASSIS GROUND, while pin 2 and pin 3 are a balanced, floating pair. This wiring scheme is compatible with any studio-wiring standard: If pin 2 or 3 is considered LOW, the other pin is automatically HIGH.

  • Page 63: Aes3 Digital Input And Output

    OPTIMOD-FM DIGITAL INSTALLATION • If an unbalanced output is required (to drive unbalanced inputs of other equip- ment), it should be taken between pin 2 and pin 3 of the XLR-type connector. Connect the L pin of the XLR-type connector (#3 or #2, depending on your organization’s standards) to circuit ground;...

  • Page 64: Connecting A Ratings Encoder

    INSTALLATION ORBAN MODEL with 44.1 kHz links even if it undergoes intermediate sample rate conversions (for example, 44.1 kHz to 96 kHz to 44.1 kHz) at various points in the program chain. The audio bandwidth of the HD-processed signal is adjustable from 15 kHz to 20 kHz in 1 kHz steps.

  • Page 65: Figure 2-3: Separation Vs. Load Capacitance

    OPTIMOD-FM DIGITAL INSTALLATION the 8500S close to the exciter and limit the length of the composite cable to less than 6 feet (1.8m). We do not recommend terminating the exciter input by 50Ω or 75Ω unless this is unavoidable. The frequencies in the stereo baseband are low by comparison to RF and video, and the characteristic impedance of coaxial cable is not constant at very low frequencies.

  • Page 66: Wordclock/10 Mhz Sync Reference

    2-10 INSTALLATION ORBAN MODEL carriers) above 23 kHz. Below 5 kHz, sensitivity rolls off at 6 dB/octave to suppress hum that might otherwise be introduced into the subcarrier in- puts, which are unbalanced. The subcarrier inputs are mixed into the 8500S’s composite output in the analog domain, after D/A conversion of the 8500S stereo encoder’s out-...

  • Page 67: Aes3Id Sync Input

    2-11 OPTIMOD-FM DIGITAL INSTALLATION AES3id Sync Input The AES3id Sync Input accepts AES3id and AES11id signals on a 75Ω BNC connector. This input can also be used as an AES3id audio input. One important application is using it in conjunction with the second AES3 output to loop-through an Arbitron® or similar ratings encoder having a digital input and output.

  • Page 68: Circuit Ground

    [Skip this section if you are not using a studio level controller ahead of the 8500S. Continue with “Quick Setup” on page 2-15.] • If you are using an Orban 6300 as a studio level controller, refer to its Operating Manual. If you are using Orban 8200ST external AGC...

  • Page 69: Figure 2-4: 8200St Jumper Settings (*Factory Configuration)

    2-13 OPTIMOD-FM DIGITAL INSTALLATION 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)
  • Page 70 2-14 INSTALLATION ORBAN MODEL D) If you cannot defeat the STL transmitter’s pre-emphasis, place jumpers JE and JF in the F position. E) Replace the top cover, and then replace all screws snugly. (Be careful not to strip the threads by fastening the screws too tightly.)

  • Page 71: Quick Setup

    2-15 OPTIMOD-FM DIGITAL INSTALLATION D) Adjust the G control for the desired amount of gain reduction. EDUCTION We recommend 8-15 dB gain reduction for most formats. If the STL uses pre-emphasis, its input pre-emphasis network will proba- bly introduce overshoots that will increase peak modulation without any increase in average modulation.
  • Page 72 (Automatic Gain Control). If you are using a suitable Automatic Gain Control at the studio (such as an Orban 8200ST OPTIMOD-Studio or 464A Co-Operator), the AGC in the 8500S should be defeated. This is so that the two AGCs do not “fight”...
  • Page 73 • If you are using an Orban 4000 Transmission Limiter, set field to (so that the AGC function in the 8500S continues to work). The Orban 4000 is a transmission system overload protection device; it is normally operated be- low threshold. It is not designed to perform an AGC or gain-riding function, and it cannot substitute for the AGC function in the 8500S.
  • Page 74 2-18 INSTALLATION ORBAN MODEL Hold down the D soft button and adjust the knob so that the AGC IGITAL meter indicates an average of 10 dB gain reduction. The procedure does not apply to the 8500S’s stand-alone stereo encoder mode. In this mode, the level indicated on the screen during this step is the r.m.s.
  • Page 75 2-19 OPTIMOD-FM DIGITAL INSTALLATION must configure Digital Output #1 to be flat or pre-emphasized outside of Quick Setup. B) Set Digital Output #2 to be flat or pre-emphasized. See the notes in step (10.B) above. a) Press the Next button. b) [Skip this step if you will not be using the digital output to drive your analog FM transmitter.] Turn the knob to choose P...
  • Page 76 2-20 INSTALLATION ORBAN MODEL b) You can use either program material or tone to set the output level (and thus, the on-air modulation). • To use tone, press the Y button. • To use program material, press the N button.
  • Page 77 2-21 OPTIMOD-FM DIGITAL INSTALLATION Do not use the Digital Output level control to match the loudness of the FM analog and HD audio at the radio. Instead, use the HD L IMITER RIVE control in the active Processing Preset to do this as the last step after you have customized to preset to your liking.
  • Page 78 (e.g., “Z-100”). The name can be up to eight characters long. It is used to identify your 8500S to Orban’s PC Re- mote application, and appears on the Main Screen when the 8500S is being con- trolled by the PC Remote application.
  • Page 79 2-23 OPTIMOD-FM DIGITAL INSTALLATION the 8500S (including the transmitter), instead set the multiplex power threshold so that it equals the amount of peak overshoot (in dB) in the transmission system. If you do not do this, the 8500S’s ITU-R BS412 con- troller will set the average multiplex power too low.
  • Page 80 2-24 INSTALLATION ORBAN MODEL The Modulation Reduction function is active as long as signal is applied to its associated GPI input. C) Program the GPI input(s). a) Navigate to Setup > Next > N &R > R ETWORK EMOTE EMOTE...
  • Page 81 2-25 OPTIMOD-FM DIGITAL INSTALLATION 4. Program Tally Outputs. [Skip this step if you do not wish to use the tally outputs.] See step 6 on page 2-4 for wiring instructions. You can program the two tally outputs to indicate a number of different opera- tional and fault conditions.

  • Page 82: Analog And Digital I/O Setup

    AGC to N . (It may be set to N already.) If you are using a external AGC like the Orban 6300, you should restore this setting to Y after the setup procedure is complete. 2. Adjust Input selector. A) Navigate to Setup > I/O C >...
  • Page 83 (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 8500S’s AGC meter...
  • Page 84 7. Defeat final clipper (optional). If you are using the 8500S to drive a network with protection audio processors (like Orban’s Optimod-FM 8500S) at each transmitter, you may wish to defeat the 8500S’s final clipper to prevent double clipping, which will unnecessarily increase distortion on-air.
  • Page 85 2-29 OPTIMOD-FM DIGITAL INSTALLATION move the advantages of the distortion cancellation in the 8500S’s final clipper. (The composite limiter does not cancel distortion.) 8. Set the polarity of the analog FM processing (optional). In HD Radio installations, this command is useful when switching the 8500S be- tween transmitters if the transmitters’...
  • Page 86 2-30 INSTALLATION ORBAN MODEL Alternately, you can use the 8500S’s built-in calibration tone oscillator. To do this: a) Navigate to Setup > T b) Set the M to T c) Set T to 100 H d) Set T to 91%. (This assumes you are using 9% pilot injection, in which case the peak level at the composite output is now the same as the maximum peak level under program conditions.)
  • Page 87 2-31 OPTIMOD-FM DIGITAL INSTALLATION Monitor: If you do not need the 8500S’s analog output to drive a trans- mitter, you may configure it to receive the output of the multiband com- pressor before peak limiting. This signal is suited for driving headphones. The input/output delay is approximately 3-8 milliseconds (depending on the setting of AGC C .
  • Page 88 2-32 INSTALLATION ORBAN MODEL 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 by using the 8500S’s ref- erence 100Hz tone.
  • Page 89 2-33 OPTIMOD-FM DIGITAL INSTALLATION 2 In (the output sample rate is synchronized to the sample rate ap- pearing at the 8500S’s BNC AES3 input). • If D 1 IN is chosen and no valid signal is available at the unit’s digi- tal input, the 8500S automatically switches the sync source to the source de- termined by the P control.
  • Page 90 2-34 INSTALLATION ORBAN MODEL c) Connect the ratings encoder’s AES3 output to your Optimod’s S NPUT When DO2 O control is set to R he S input is repur- OURCE ATINGS posed automatically to drive the input of your Optimod’s stereo encoder.
  • Page 91 2-35 OPTIMOD-FM DIGITAL INSTALLATION prevent overshoots in 32 kHz transmission systems, set the 8500S’s HD control to 15 kHz. ANDWIDTH 12. Set up and activate the BS.1770 Safety Limiter (optional). The BS.1770 Safety Limiter applies only to the digital radio processing. It prevents the BS.1770-3 integrated loudness from exceeding a value set by the L OUD THR control.

  • Page 92: Automation Using The 8500S's Internal Clock

    2-36 INSTALLATION ORBAN MODEL control ON and OFF. In our example, the loudness will de- AFETY IMITER crease by 3 dB when you set the BS.1770 S to OFF. AFETY IMITER B) Navigate to the Setup > I/O C screen.
  • Page 93 2-37 OPTIMOD-FM DIGITAL INSTALLATION Note that setting DT M , or ST W to O will , DT W , ST M ONTH ONTH defeat Daylight Time functionality. c) Press the Escape key to back out of the daylight saving screen. D) (Optional) Press the S ID button to specify your station’s identifier (call TATION...
  • Page 94 2-38 INSTALLATION ORBAN MODEL E) For all events: a) Press the S button. ELECT VENT b) Turn the knob to set the desired event. The available events are: • Recall factory preset • Recall user preset • stereo mode • mono-from-left-channel (MONO-L) mode •...

  • Page 95: Security And Passcode Programming

    2-39 OPTIMOD-FM DIGITAL INSTALLATION C) Choose the event to delete with the knob. You can search by date or by event (i.e., recalling a given preset). Use the Next button to navigate from one type of search to the other type. D) When you have located the event you want to remove, press the D ELETE button.

  • Page 96: To Create A Passcode

    2-40 INSTALLATION ORBAN MODEL If PC Remote exits normally, it will erase these temporary User Preset files from your computer’s hard disk. If it does not exit normally, these files will remain in encrypted form. However, the next time that PC Remote starts up, it will automatically clean up any orphaned files.

  • Page 97: To Lock The Front Panel Immediately

    2-41 OPTIMOD-FM DIGITAL INSTALLATION B) Turn the knob until you see the passcode you want to delete. C) Press the Next button. The Confirm Delete screen appears. D) Press the Y soft button to delete the passcode. Press the NO or ESCAPE buttons to abort deleting the passcode.

  • Page 98: Dial-Up Networking And The Passcode

    2-42 INSTALLATION ORBAN MODEL Dial-up Networking and the Passcode When you make a Windows Dial-up Networking connection, Windows will ask you for your passcode. To allow the connection to occur, enter any passcode that you set at the 8500S’s front panel. Once your PC is connected to the 8500S, you will be able to access the 8500S functionality corresponding to the security level of your pass- code.
  • Page 99 2-43 OPTIMOD-FM DIGITAL INSTALLATION A momentary pulse of voltage will switch most functions except as noted. • Preset Name: switches that preset on the air. Any factory or user preset may be recalled via the control interface. • Input: Analog: selects the analog inputs. •...

  • Page 100: Networking And Remote Control

    2-44 INSTALLATION ORBAN MODEL • Analog Out Delay Out: Bypasses the diversity delay for a specified output (Analog, Digital #1, Digital #2, Composite) emitting the output of the ana- log FM processing chain (see page 3-67). D IGITAL ELAY are also available.
  • Page 101 2-45 OPTIMOD-FM DIGITAL INSTALLATION a) Use the Next and Prev keys to move the cursor in turn to each digit in the IP address. Use the knob to set the digit to the desired value. Repeat until you have selected all the numbers in the IP address assigned by your network administrator b) Press the S soft button to confirm your setting.
  • Page 102 You will need two modems and two available phone lines, one of each for your PC and your 8500S. Orban Customer Service supports only the 3Com/U.S. Robot- ics® 56kbps fax modem EXT on the 8500S side of your connection, although other 56kbps modems will often work OK.

  • Page 103: Connecting To The 8500S's Ethernet Port Or Serial Port Via A Terminal Program On A Pc

    2-47 OPTIMOD-FM DIGITAL INSTALLATION Connecting to the 8500S’s Ethernet Port or Serial Port via a Ter- minal Program on a PC You can connect a terminal emulation application to the 8500S’s Ethernet or serial port via TCP/IP, port 23 (which is the standard Telnet port and the 8500S factory de- fault).

  • Page 104: Direct Control Using Putty

    2-48 INSTALLATION ORBAN MODEL Note that Windows 7 does not install a Telnet Client by default, so you must do this manually if you wish to initiate a Telnet connection be- tween a Windows 7 machine and your Optimod. Refer to: http://technet.microsoft.com/en-us/library/cc771275(WS.10).aspx...

  • Page 105: Automated Control Using Putty/Plink

    2-49 OPTIMOD-FM DIGITAL INSTALLATION Automating control changes is possible using the Windows Task Scheduler to launch batch files at the desired time. CAUTION: Because of the powerful features and potential security risks of Netcat, many virus programs may detect this software as a threat. If Netcat is detected as such, configure virus software to allow, and use the software with the normal security precautions.

  • Page 106: Administrative Operations Available Via Serial Port / Ethernet

    2-50 INSTALLATION ORBAN MODEL The following two examples recall the presets GREGG and GREGG OPEN respec- tively. The file “8500S_P1_Gregg.cmd” contains: nc.exe -v -n -w 1 123.45.67.89 23 < 8500S_P1_Gregg.txt The file “8500S_P1_Gregg.txt” contains: RP GREGG [PASSWORD] disconnect The file “8500S_P2_GreggOpen.cmd” contains: nc.exe -v -n -w 1 123.45.67.89 23 <...
  • Page 107 2-51 OPTIMOD-FM DIGITAL INSTALLATION timeout does not apply. • This command is useful in interfacing automation systems to the 8500S. 2. To turn the analog diversity delay on or off for a given output: Command Response DE XXX[PASSCODE] (valid passcode and argument) DIVERSITY DELAY: [ON,OFF] (for each output) (invalid passcode)
  • Page 108 2-52 INSTALLATION ORBAN MODEL mand to the 8500S when the on-air transmission chain is swapped. • If a non-existent control value, and/or an invalid passcode is entered, the 8500S will ignore the command. • You can apply this command anytime after the 8500S boots up. The 30-minute timeout does not apply.
  • Page 109 2-53 OPTIMOD-FM DIGITAL INSTALLATION X = A, D In the above table: where A = analog input, D = digital input PASSCODE = ANY VALID PASSCODE. • If a non-existent control value and/or an invalid passcode is entered, the 8500S will ignore the command.

  • Page 110: Synchronizing Optimod To A Network Time Server

    2-54 INSTALLATION ORBAN MODEL On Air: LOUD-HOT+BASS User Presets: Memory Total: 16318464 Init Available: 13606912 Mem Available: 10022480 Mem Contiguous: 9420800 Heap Available: 15952 Heap Contiguous: 2048 Disk Size: 23998 Free Disk Space: 18978 9. To set the security timeout of the terminal connection: Sets the delay (minutes) between when the last terminal command is received and when the Optimod disconnects automatically.
  • Page 111 2-55 OPTIMOD-FM DIGITAL INSTALLATION The choices are O , and 24 HOURS HOURS If the connection to the timeserver fails (due to network overload or other problems), your Optimod will try once per hour to synchronize un- til it is successful. C) Set the O to the difference (in hours) between your time zone and Uni- FFSET...
  • Page 112 2-56 INSTALLATION ORBAN MODEL cate that the connection failed. This means either that the timeserver is too busy or that your setup cannot connect to the timeserver. Double-check the IP address. If you are behind a firewall, make sure that port 123 is open.

  • Page 113: Installing 8500S Pc Remote Control Software

    8500S’s serial port. (These services are also used to upgrade your 8500S’s firm- ware when updates are available from Orban.) The exact process will vary, depend- ing on how you wish to set up the communications. That is:...

  • Page 114: Check Hardware Requirements

    If connecting by modem: a 3Com/U.S. Robotics® 56kbps fax modem EXT and normal (not null) modem cable for the 8500S side of the connection. Note that Orban Customer Service does not support any other type of modem for connect- ing to the 8500S.

  • Page 115: 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 116: Conclusion

    8500S questions, please contact Orban Customer Service: phone: +1 510 351-3500 email: custserv@orban.com For details on your new 8500S software, from new features to operational sugges- tions, refer to our FTP site (ftp.orban.com/8500S).

  • Page 117: Appendix: Setting Up Serial Communications

    Windows Vista and 7, although we recommend using Ethernet connections with Vista or 7. Note that the screen shots were prepared us- ing Orban’s Optimod-FM 8300 but apply equally well to the 8500S. Preparing for Communication through Null Modem Cable 1.
  • Page 118 2-62 INSTALLATION ORBAN MODEL If you cannot access the Internet after making a Direct or Modem connection, you will have to reconfigure certain networking parameters in Windows. Please see You Cannot Access the Internet After Making a Direct or Modem Connection of the 8500S on page 5-9.
  • Page 119 2-63 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 120 2-64 INSTALLATION ORBAN MODEL 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 2-63. This will usually “Com- munications...
  • Page 121 2-65 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 122: Connecting Using Windows Xp Direct Serial Connection

    2-66 INSTALLATION ORBAN MODEL 2. Launch an existing Windows 2000 Direct connection. Once you have set up a “connection” specifying Direct Connect in the 8500S PC Remote application (see To set up a new connection on page 3-81), choosing this connection from 8500S PC Remote automatically opens a Windows Direct Con- nection to your 8500S.
  • Page 123 2-67 OPTIMOD-FM DIGITAL INSTALLATION c) Give your 8500S a name (e.g., “KABC”) by entering this name in the “8500S Alias” field. d) If you wish to have 8500S PC Remote remember password this Optimod, enter the password in the “Password“ field. e) Select “Serial Connection.”...
  • Page 124 2-68 INSTALLATION ORBAN MODEL k) Type in a name for your Connection such “Connection to 8500S.” l) Click “Finish.” n) Click “Yes.” B) Edit your Direct Connection properties: a) Click “Settings.”...
  • Page 125 2-69 OPTIMOD-FM DIGITAL INSTALLATION b) Click the “General” tab. c) Select the device you set up in step (i) on page 2-67. This will usually be “Communications cable between two computers (COM1).” d) Click “Configure.” e) Set the “Maximum Speed (bps)” to 115200.
  • Page 126 2-70 INSTALLATION ORBAN MODEL j) Select the Networking tab. k) Make sure that “PPP: Windows 95/98/NT 4/2000, Internet” appears in the “Type of dial-up server I am calling” field. l) Make sure that “Internet Protocol (TCP/IP) is checked. You may leave “File...

  • Page 127: Connecting Using Windows 7 Direct Serial Connection

    2-71 OPTIMOD-FM DIGITAL INSTALLATION 3. To change the properties of an existing connection: Right-click the connection in the “connection List” window and choose “Proper- ties.” The “Connection properties” window opens (see page 2-62). Connecting Using Windows 7 Direct Serial Connection: You must install the Windows 7 direct serial connection as a modem device using the Modem setup procedures as shown in the steps below.
  • Page 128 2-72 INSTALLATION ORBAN MODEL B) In the Phone and Modem applet, click on the Mo- dems tab and click “Add.” You need ad- ministrator's rights to do this. If UAC comes up, provide the relevant creden- tials and pro- ceed.
  • Page 129 2-73 OPTIMOD-FM DIGITAL INSTALLATION D) The Install New Modem window will appear. a) Select Communications cable between two computers. b) Proceed to next step by clicking on the NEXT button. E) Select the Serial com port to which the NULL cable is con- nected.
  • Page 130 2-74 INSTALLATION ORBAN MODEL F) At the Modem installation is finished window, click FINISH to complete the in- stallation. G) Once you are back at the Phone and Modem win- dow, you will see your newly installed communi- cation cable attached to the serial com port that you specified earlier.
  • Page 131 2-75 OPTIMOD-FM DIGITAL INSTALLATION A) Go to the Network and Sharing Center and click on Set up a new connection or network link. B) In the Choose a connection op- tion window, select Set up a dial-up connection.
  • Page 132 2-76 INSTALLATION ORBAN MODEL C) If you are asked Which mo- dem do you want to use?, se- lect Communications cable between com- puters/modem. This only query will open appear if you have configured more than modem device. D) When prompted to “Type...
  • Page 133 2-77 OPTIMOD-FM DIGITAL INSTALLATION Windows will emit a message stating The connection is ready for use. How- ever, you must to configure some of the PPP settings before you can make a connection to your Optimod Although you did not specifically install any-...
  • Page 134 2-78 INSTALLATION ORBAN MODEL B) In the Network adapter window, right-click the Direct Serial PPP icon and click on the properties. You need ad- ministrator rights to pro- ceed from here. If UAC comes up, pro- vide the rele- vant...
  • Page 135 2-79 OPTIMOD-FM DIGITAL INSTALLATION c) If it is not correct, reset it to 115200 bps. d) Click OK to close the window. e) Click OK to dismiss the Properties window. f) Restart your computer. Restarting should ensure that the bps setting is saved. G) Select the Networking tab.
  • Page 136 2-80 INSTALLATION ORBAN MODEL H) In the Advance TCP/IP Set- tings window, click on the Advance button. a) Unselect default gateway remote network. b) Click OK to close this window. This prevents Win- dows 7 from rout- ing all networking...

  • Page 137: Preparing For Communication Through Modems

    You will need two modems and two available phone lines, one of each for your PC and your 8500S. Reminder: Orban supports only the 3Com / U.S. Robotics® 56kbps fax modem EXT on the 8500S side (although other 56kbps modems will often work OK).
  • Page 138 2-82 INSTALLATION ORBAN MODEL b) On your PC, click “Start / Settings / Control Panel / Phone and Modem Options.” c) Click the “Modems” tab. d) Verify that your modem appears in the list available under “The following Modems are installed.”...
  • Page 139 2-83 OPTIMOD-FM DIGITAL INSTALLATION g) Select “Dial-up to private network.” h) Click “Next.” j) Enter the phone number of the modem connected to the 8500S that you are setting up. k) Click the “Next” button. l) Select either “For all users” or “Only for myself.”...
  • Page 140 2-84 INSTALLATION ORBAN MODEL n) Click the “Next” but– ton. o) Type in a name for your Connection such “Connection 8500S – Modem.” p) Click the “Finish” but– ton. q) Click “Yes.” D) Edit your new Direct Connection properties: a) Click “Settings.”...
  • Page 141 2-85 OPTIMOD-FM DIGITAL INSTALLATION 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.” e) Set “Maximum speed (bps)” “115200.” f) Check “Enable hard-ware flow...
  • Page 142 2-86 INSTALLATION ORBAN MODEL k) Select the Networking tab. l) Make sure that “PPP: Windows 95 / 98 / NT 4 / 2000, Internet” appears in the “Type of dial-up server I am calling” field. m)Make sure that “Inter- net Protocol (TCP/IP) is checked.

  • Page 143: Connecting Using Windows Xp Modem Connection

    2-87 OPTIMOD-FM DIGITAL INSTALLATION 3. To change the properties of an existing connection: Right-click the connection in the “connection List” window and choose “Proper- ties.” The “Connection properties” window opens (see page 2-82). Connecting using Windows XP Modem Connection 4. Add and configure modem for Windows XP: Skip this step if your modem is already configured and working.
  • Page 144 2-88 INSTALLATION ORBAN MODEL 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. b) On your PC, click “Start / Settings / Control Panel / Phone and Modem Options.”...
  • Page 145 2-89 OPTIMOD-FM DIGITAL INSTALLATION e) Click “Add.” The Windows New Connection Wizard starts up. f) Select “Serial Connection.” g) Click the “Add” button. h) Select “Dial-up to private network.” i) Click “Next.” k) Enter the phone number of the modem connected to the 8500S you are setting up.
  • Page 146 2-90 INSTALLATION ORBAN MODEL p) Click “Yes.” D) Edit your new Direct Con- nection properties: 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 147 2-91 OPTIMOD-FM DIGITAL INSTALLATION e) Set “Maximum speed (bps)” “115200.” f) Check “Enable hardware flow control.” g) Check “Enable modem error control.” h) Check “Enable modem compression.” i) Make sure that no other box is checked. j) Click “OK.” k) Select the Networking tab. l) Make sure that “PPP: Windows 95 / 98 / NT4 / 2000, Internet”...

  • Page 148: Updating Your 8500S's Software

    2-92 INSTALLATION ORBAN MODEL You can connect by selecting the desired con- nection from the drop-down list in the C ONNECT menu. You can also connect by double-clicking the connection in the “Connection List” window. If the connection is successful, a dialog bubble will appear on the bottom right hand corner of the screen verifying your connection.
  • Page 149 2-93 OPTIMOD-FM DIGITAL INSTALLATION 4. Update your 8500S. A) Attempt to initiate communication to your 8500S via your connection. See To initiate communication on page 3-81. 8500S PC Remote will automatically detect that the 8500S software ver- sion on your 8500S is not the same as the version of 8500S PC Remote. PC Remote will then offer to update your 8500S automatically.

  • Page 150: Snmp Support

    Secondary Manger Port: (162) sets the address of a Secondary SNMP Port. SNMP Mib file The 8500S.mib file is in the location where you installed your PC Remote application. The default 8500S install location is: Program Files\Orban\Optimod 8500S PC Remote Program Files(x86)\Orban\Optimod 8500S PC Remote SNMP Default Settings •...

  • Page 151: Snmp Features

    Secondary Manger (Alarm) Port: 162 SNMP Features Get/Query: • Station Name • System Diagnostics Orban (walks through all of the “get” commands and dis- plays their status.) • Primary and Secondary Manager IP • Primary and Secondary Manager Port •...
  • Page 152 2-96 INSTALLATION ORBAN MODEL SNMP Community String: The “SNMP Community string” is like a user id or password that allows access to a router's or other device's statistics. It is set at Optimod PC Remote to implement SNMP security. PRTG sends the community string along with all SNMP requests. If the community string is correct, the device responds with the requested information.

  • Page 153: Rds/Rbds Generator

    2-97 OPTIMOD-FM DIGITAL INSTALLATION RDS/RBDS Generator Your Optimod includes a full-featured RDS/RBDS generator that supports dynamic PS. We presume that you are already familiar with the basics of RDS and you wish to implement RDS via your Optimod. See the References on page 2-107 for more about RBS and RBDS.

  • Page 154: Table 2-1: System I/O Rds Controls And Defaults

    2-98 INSTALLATION ORBAN MODEL Program Service (PS= / DPS=) Default: undefined Radio Text (RT= / TEXT=) Default: undefined Radio Text Speed (DRTS=) Default: Off Program Identification (PI=) Default: undefined Program Type (PTY=) Default: undefined Program Name (PTYN=) Default: undefined Music/Speech (MS=)

  • Page 155: Using Processing Presets

    2-99 OPTIMOD-FM DIGITAL INSTALLATION In the System I/O RDS tab, turn on the RDS generator by setting 57 kHz RDS con- trol to . You can also set up the Modulation level and all other RDS I/O controls in the System I/O RDS screens per the screenshot above. Table 2-1 shows a list of RDS controls available in System I/O.

  • Page 156: Using The Terminal Server

    2-100 INSTALLATION ORBAN MODEL Note that because of buffering to ensure reliable RDS encoding, there is a delay of about four seconds between when you change a control and when your Optimod puts it on-air. Using the Terminal Server The terminal server is another way to change RDS dynamically. Your Optimod will update the outgoing RDS to whatever RDS control value it receives via the terminal, overwriting the system and preset RDS values.
  • Page 157 2-101 OPTIMOD-FM DIGITAL INSTALLATION C) You may now type any of the terminal commands in the chart of RDS Termi- nal Commands below. If you have checked the Optimod’s T box, when you type a ERMINAL command, the Optimod will return a status line relevant to the command to the Telnet client, which will write it to the screen.

  • Page 158: Security

    2-102 INSTALLATION ORBAN MODEL AF 22=0 AF 23=0 AF 24=0 Security In the System I/O RDS control screen, you can set the RDS Terminal control security by specifying an RDS IP address from which to accept commands. Once set, this IP will be the only IP that can connect to the unit to update RDS.
  • Page 159 2-103 OPTIMOD-FM DIGITAL INSTALLATION COMMAND PARAMETER INFORMATION EXAMPLE RadioText Speed 0 = RadioText OFF DRTS=3 DRTS= 1 - 9 = Refresh rate for RadioText message transmission (3 recommended for text messag- ing, higher values for RT+ applica- tions) Program PI=3D44↵ 4-digit HEX number Identification (for KRDS)

  • Page 160: Alternative Frequency Channel Numbers

    2-104 INSTALLATION ORBAN MODEL COMMAND PARAMETER INFORMATION EXAMPLE TIMEOUT= RDS terminal Timeout (in minutes) between last TIMEOUT=15↵ connection time- transmitted command and when (current connection the Optimod disconnects auto- stays up for 15 min- matically. Use it to allow the Opti-...

  • Page 161: Program Type (Pty)

    2-105 OPTIMOD-FM DIGITAL INSTALLATION CHAN CHAN CHAN CHAN 88.6 93.7 98.8 103.9 88.7 93.8 98.9 104.0 88.8 93.9 99.0 104.1 88.9 94.0 99.1 104.2 89.0 94.1 99.2 104.3 89.1 94.2 99.3 104.4 89.2 94.3 99.4 104.5 89.3 94.4 99.5 104.6 89.4 94.5 99.6...

  • Page 162: Sca/Subcarrier Phase Relationship

    2-106 INSTALLATION ORBAN MODEL Program Type – US Program Type – EU Information Current Affairs Sports Information Talk Sports Rock Education Classic Rock Drama Adult Hit Music Culture Soft Rock Music Science Top 40 Music Varied Country Music Pop Music...

  • Page 163: References

    2-107 OPTIMOD-FM DIGITAL INSTALLATION Figure 2-5: Pilot/SCA Phasing Scope Trace To minimize the amount of peak level that the RDS subcarrier adds to the composite baseband, your Optimod’s RDS generator is locked in quadrature with respect to the pilot tone, so Figure 2-5 is for reference only. If your transmission system is broad- casting stereo correctly, it will also correctly pass the phasing built into your Opti- mod’s SCA generator.

  • Page 165: Section 3 Operation

    OPTIMOD-FM DIGITAL OPERATION Section 3 Operation 8500S 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 8500S 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 166 OPERATION ORBAN MODEL 8500S • Input meters show the peak input level applied to the 8500S’s analog or digital inputs with reference to 0 = digital full-scale. If the input meter’s red segment lights up, you are overdriving the 8500S’s analog to digital converter, which is a very common cause of audible distortion.

  • Page 167: Introduction To Processing

    OPTIMOD-FM DIGITAL OPERATION switch the meter so that it reads the gain reduction of the Master (above-200 Hz) band, the Bass (below-200Hz) band, or the difference between the gain re- ductions in the Master and Bass bands. The latter reading is useful for assessing the dynamic bass equalization that the AGC produces, and it helps you set the AGC BASS COUPLING control.

  • Page 168: Distortion In 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...

  • Page 169: Optimod-Fm-From Bach To Rock

    OPTIMOD-FM DIGITAL OPERATION 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. Perhaps the most difficult part of adjusting a processor is determining the best trade-off for a given situation.

  • Page 170: Fundamental Requirements: High-Quality Source Material And Accurate Monitoring

    CDs that this energy cannot possibly survive the FM pre-emphasis / de- emphasis process. Although the 8500S loses less high frequency energy than any previous Orban processor (due to improvements in high frequency limiting and clip- ping technology), it is nevertheless no match for CDs that are mastered so bright that they will curl the vinyl off car dashboards.

  • Page 171: About The 8500S's Signal Processing Features

    OPTIMOD-FM DIGITAL OPERATION About the 8500S’s Signal Processing Features Dual-Mono Architecture The 8500S implements full dual-mono architecture in both the AGC and the multi- band compressor sections. You can couple each band in both the AGC and multi- band compressors to a variable extent—anywhere from perfect stereo coupling to completely uncoupled operation.
  • Page 172 Stereo Enhancement: The 8500S provides two different stereo enhancement algo- rithms. The first is based on Orban’s patented analog 222 Stereo Enhancer, which in- creases the energy in the stereo difference signal (L–R) whenever a transient is de- tected in the stereo sum signal (L+R).
  • Page 173 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 174 See To Override the Speech/Music Detector on page 3-63. DSP-derived Stereo Encoder: The 8500S’s stereo encoder is derived from algo- rithms first developed for the high-performance Orban 8218 stand-alone encoder. The 8500S’s stereo encoder operates at 512 kHz-sample rate to ease the perform- ance requirements of the D/A converter’s reconstruction filter, making it possible to...
  • Page 175 IMIT RIVE control as usual Composite Limiter/Clipper: Orban has traditionally opposed composite clipping because of its tendency to interfere with the stereo pilot tone and with subcarriers, and because it causes inharmonic aliasing distortion, particularly between the stereo main and subchannels. Protecting the pilot tone and subcarrier regions is particu- larly difficult with a conventional composite clipper because appropriate filters will not only add overshoot but also compromise stereo separation—filtering causes the...

  • Page 176: Itu-R 412 Compliance For Analog Fm Broadcasts

    3-12 OPERATION ORBAN MODEL 8500S For those who prefer the sound of conventional composite clipping, we also offer a defeatable composite clipper. This also provides excellent spectral protection for the pilot tone and subcarriers. The composite clipper drives the “Half-Cosine Interpola- tion”...

  • Page 177: Two-Band Purist Processing

    3-13 OPTIMOD-FM DIGITAL OPERATION The 8500S gives you control over the Multiplex Power Threshold (in the In- put/output Utilities screen). This allows you to compensate for overshoots in the sig- nal path upstream from the 8500S, preventing excessive reduction of the multiplex power.

  • Page 178: Bs.1770 Compliance For Digital Radio

    3-14 OPERATION ORBAN MODEL 8500S Except for the fact that its input has been de-emphasized, the HD look-ahead limiter receives the same processing as the FM peak limiting section if the FM HD C ONTROL is set to FM HD. Earlier processing has often been adjusted to help com-...

  • Page 179: Customizing The 8500S's Sound

    3-15 OPTIMOD-FM DIGITAL OPERATION essing advances further and further from its analog roots, this is the inevitable price of progress. 18 ms is below the psychoacoustic “echo fusion threshold,” which means that talent will not hear discrete slap echoes in their headphones. This means that they can monitor comfortably off-air without being distracted or confused.

  • Page 180: Advanced Modify

    3-16 OPERATION ORBAN MODEL 8500S 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. As you increase the setting of the L control, the air sound will become louder, but (as with any processor) processing artifacts will increase.

  • Page 181: Gain Reduction Metering

    3-17 OPTIMOD-FM DIGITAL OPERATION in Full or Advanced Modify, L control is no longer available in Basic Modify. As noted above, we strongly recommend using the L control to achieve a sound as close as possible to your desired sound before you make further modifications at the Full or Advanced Modify levels.

  • Page 182: About The Processing Structures

    3-18 OPERATION ORBAN MODEL 8500S Some non-alphanumeric characters (such as < and >) are reserved and cannot be used in preset names. D) Use the knob to set the each character in the preset name. Use the Next and Prev buttons to control the cursor position.

  • Page 183: Factory Programming Presets

    Unused structures operate constantly in the background, so switching between structures 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 184: Table 3-1: Factory Programming Presets

    3-20 OPERATION ORBAN MODEL 8500S FACTORY PROGRAMMING PRESETS CLASSICAL-5 BAND CLASSICAL-5 BAND CLASSICAL-5B+AGC CLASSICAL-5B+AGC COUNTRY-MEDIUM ROCK-SMOOTH COUNTRY-LIGHT ROCK-LIGHT COUNTRY UL COUNTRY UL CRISP CRISP DANCE ENERGY DANCE ENERGY EDGE EDGE 10.0 FOLK-TRADITIONAL ROCK-SOFT GOLD GOLD GREGG GREGG GREGG OPEN GREGG OPEN...
  • Page 185 Bass, Mid EQ, and HF EQ controls. ASIC ODIFY Unlike Orban’s 8200, you can make changes in EQ (and stereo enhancement) with- out losing the ability to use L settings. Of course, L is still available for the unedited preset if you want to go back to it.
  • Page 186 3-22 OPERATION ORBAN MODEL 8500S • Presets with LL in their names use the Hard LL bass clipper mode to achieve 13 ms input-output delay. • The remaining presets have “optimum delay,” which is approximately 18 ms de- lay (5-band) and 21 ms delay (2-band).
  • Page 187 GREGG: GREGG, GREGG OPEN, and GREGG LL all use a 200 Hz band1/band2 crossover frequency to achieve a bass sound similar to the classic five-band Gregg Labs FM processors designed by Orban’s Vice President of New Product Develop- ment, Greg Ogonowski. Dynamically, these presets produce a slight increase in bass energy below 100 Hz and a decrease of bass energy centered at 160 Hz.
  • Page 188 3-24 OPERATION ORBAN MODEL 8500S JAZZ: JAZZ is specifically tailored toward stations that play mostly instrumental mu- sic, particularly classic jazz (Coltrane, Mingus, Monk, etc.). It is a quiet preset with a very clean, mellow high end to prevent stridency on saxes and other horns. It pre- serves much of the qualities of the original recordings, doing light re-equalization.
  • Page 189 3-25 OPTIMOD-FM DIGITAL OPERATION LOUD-PUNCHY is the quietest of the “loud” preset family. It is designed for a bright, sizzling top end and very punchy lows. It is a good choice for stations that feel that the LOUD-HOT presets are too aggressive, but that think that the ROCK presets are insufficiently loud for their market position.

  • Page 190: Equalizer Controls

    3-26 OPERATION ORBAN MODEL 8500S ROCK-SMOOTH has the same mellow, easy-to-listen-to high frequency quality as ROCK-SOFT, but with more density. Again, it is a good choice for female-skewing formats, but where you need more compression and density than you get with ROCK-SOFT.
  • Page 191 So be aware the large fixed bass boosts may have a different effect than you expect because of the way that they interact with the multiband compressor. Low Frequency Parametric Equalizer is a specially designed parametric equalizer whose boost and cut curves closely emulate those of a classic Orban analog para-...

  • Page 192: Table 3-2: Five-Band Equalization Controls

    3-28 OPERATION ORBAN MODEL 8500S metric equalizer with conventional bell-shaped curves (within ±0.15 dB worst-case). This provides warm, smooth, “analog-sounding” equalization. LF FREQ determines the center frequency of the equalization, in Hertz. Range is 20-500Hz. LF GAIN determines the amount of peak boost or cut (in dB) over a ±10 dB range.
  • Page 193 100Hz in combination with a Bass Shelf boost at 6 dB/octave. The equalizer, like the classic Orban analog parametrics such as the 622B, has con- stant “Q” curves. This means that the cut curves are narrower than the boost curves.
  • Page 194 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 195: Stereo Enhancer Controls

    The stereo enhancer is common to the FM and HD processing chains. You can oper- ate it in one of two modes or “styles.” The first emulates the Orban 222 analog ste- reo enhancer, while the second mode, called Delay, emulates a popular enhancer from another manufacturer that adds a delayed version of the L–R signal to the...

  • Page 196: Agc Controls

    3-32 OPERATION ORBAN MODEL 8500S Stereo Enhancer Controls PC Remote Name Range Amount 0.0 ... 10.0 In / Out Out / In Ratio Lim 70 … 100% Diffusion Off, 0.3 ... 10.0 Style 222 / Delay Depth 0 … 10 Table 3-3: Stereo Enhancer Controls •...

  • Page 197: Table 3-4: Agc Controls

    (such as a CLASSICAL preset). The AGC is also ordinarily de- feated if you are using an external AGC (like Orban’s 6300). However, in this case it is better to defeat the AGC globally in the System Setup screen.
  • Page 198 3-34 OPERATION ORBAN MODEL 8500S gated. (It gates whenever the input level to the structure is below the threshold of gating.) The total amount of gain reduction in the Five-Band structure is the sum of the gain reduction in the AGC and the gain reduction in the multiband compressor. The total system gain reduction determines how much the loudness of quiet passages will be increased (and, therefore, how consistent overall loudness will be).
  • Page 199 3-35 OPTIMOD-FM DIGITAL OPERATION The multiband compressor gate causes the gain reduction in bands 2 and 3 of the multiband compressor to move quickly to the average gain reduction occurring in those bands when the gate first turns on. This prevents obvious midrange coloration under gated conditions, because bands 2 and 3 have the same gain.
  • Page 200 Previous Orban AGCs had compression ratios very close to ∞:1, which produces the most consistent and uniform sound. However, the 8500S compressor can reduce this ratio to as low as 2:1.
  • Page 201 3-37 OPTIMOD-FM DIGITAL OPERATION The interaction between the AGC B control and the AGC B HRESH control is a bit complex, so we recommend leaving the OUPLING control at its factory setting unless you have a good reason HRESH for readjusting it. Idle Gain.

  • Page 202: Peak Limiter Controls

    3-38 OPERATION ORBAN MODEL 8500S All Five-Band factory presets automatically use A because of its LLPASS smooth, shelving behavior and low delay. Its allpass characteristic com- plements the existing phase rotator that reduces voice distortion. Be- cause the Five-Band structure uses phase-rotating crossovers in the five- band compressor / limiter, there is little or nothing to be gained by using a phase-linear crossover in the Five-Band structure’s AGC.
  • Page 203 3-39 OPTIMOD-FM DIGITAL OPERATION monic distortion. This can be useful if you want maximum bass punch, because this setting allows bass transients (like kick drums) to make square waves. The peak level of the fundamental component of a square wave is 2.1 dB higher than the peak level of the flat top in the square wave.
  • Page 204 3-40 OPERATION ORBAN MODEL 8500S • uses more sophisticated signal processing than H to reduce distortion EDIUM substantially. • uses the most sophisticated look-ahead signal processing to reduce distor- tion further. Using S adds an additional 18 ms of delay to the processing (so that the total is approximately 36 ms).
  • Page 205 The final clipper operates at 256 kHz sample rate and is fully anti-aliased. Composite Limit Mode determines if the composite limiter will operate as a hard clipper or as Orban’s patented “Half-Cosine Interpolation” composite limiter (which is not a clipper).

  • Page 206: Figure 3-1: 0-100 Khz Baseband Spectrum (Loud-Hot Preset)

    3-42 OPERATION ORBAN MODEL 8500S When operating as a hard clipper, the composite limiter will produce maximum brightness in the frequency range from 5 to 15 kHz because, unlike the 8500S’s left/right audio-domain peak limiters, it can produce square waves in this frequency range. The downside compared to Half- Cosine mode is that it can noticeably compromise stereo imaging.
  • Page 207 3-43 OPTIMOD-FM DIGITAL OPERATION control is accessible only from the 8500S VERSHOOT OMPENSATOR RIVE PC Remote software.) Pilot Protect (Pilot Protection Filter) turns the 19 kHz notch filter on or off. It af- fects the composite output only. The 8500S’s composite limiter always protects frequencies above 53 kHz. However, the 19 kHz notch filter can introduce substantial overshoot with certain program material when the composite limiter is driven hard.

  • Page 208: The Two-Band Structure

    Five-Band structure. Like the “Two-Band Purist” structure in Orban’s OPTIMOD-FM 8200, the 8500S’s Two-Band Structure is phase-linear through- out to maximize sonic transparency.

  • Page 209: The Protection Presets

    3-45 OPTIMOD-FM DIGITAL OPERATION ance between the bass and high frequency energy of the program material is incor- rect, the Two-Band structure (when its BAND COUPLING 2>1 control is operated to- ward 0%) can gently correct it without introducing obvious coloration. The Two-Band structure is mainly useful for classical or “fine arts”...

  • Page 210: Customizing The Settings

    3-46 OPERATION ORBAN MODEL 8500S poses, inaudible to the listener. Low-level passages are increased in level by up to 10 dB, while the dynamics of crescendos are maintained. 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.

  • Page 211: The Two-Band Structure's Setup Controls

    3-47 OPTIMOD-FM DIGITAL OPERATION The Two-Band Structure’s Setup Controls The tables below show a summary of the Two-Band controls in the dynamics section. These controls are available only from PC Remote. 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 Section 3.
  • Page 212 3-48 OPERATION ORBAN MODEL 8500S gated by the silence gate. The release time can be adjusted from 0.5 dB / second (slow) to 20 dB / second (fast). Settings toward 20 dB / second result in a more consistently loud output, while set- tings toward 0.5 dB / second allow a wider variation of dynamic range.
  • Page 213 3-49 OPTIMOD-FM DIGITAL OPERATION The two-band gain reduction will eventually recover to 0 dB and the AGC gain re- duction will eventually recover to –10 dB even when their compressor gates are gated. However, recovery is slow enough to be imperceptible. This avoids OPTIMOD- FM’s getting stuck with a large amount of gain reduction on a long, low-level musi- cal passage immediately following a loud passage.
  • Page 214 3-50 OPERATION ORBAN MODEL 8500S 2B Bass Comp Threshold determines the compression threshold of the bass band in the Two-Band Compressor. It can be used to set the target spectral balance of the Two-Band Compressor. As the Two-Band Compressor B...

  • Page 215: The Five-Band Structure

    3-51 OPTIMOD-FM DIGITAL OPERATION The HF Limiting control is in the clippers screen in the unit. HF Clip Threshold sets the threshold of the multiband, distortion-cancelled clipper in the Two-Band structure’s high frequency limiter. Higher numbers yield more brightness, but also cause more high frequency distortion. This control does not affect the HD processing chain.

  • Page 216: Customizing The Settings

    3-52 OPERATION ORBAN MODEL 8500S Customizing the Settings The L control can edit each of these presets to optimize the trade-off be- tween loudness and distortion according to the needs of the format. The presets can be further edited with Basic, Full Modify, or Advanced Modify to fine-tune them.

  • Page 217: Table 3-8: Multiband Controls

    3-53 OPTIMOD-FM DIGITAL OPERATION these faster release times produce more limiting action. Increasing density can make sounds seem louder, but can also result in an unattractive busier, flatter, or denser sound. It is very important to be aware of the many negative subjective side effects of excessive density when setting controls that affect the density of the processed sound.
  • Page 218 3-54 OPERATION ORBAN MODEL 8500S You can minimize this effect by carefully setting the MB G HRESH control to “freeze” the gain when the input gets quiet and/or by activat- ing the single-ended noise reduction. When the multiband compressor’s release time is set to its faster settings, the setting...

  • Page 219: Table 3-9: Mb Attack / Release Controls

    3-55 OPTIMOD-FM DIGITAL OPERATION music is noticeably altered to a standard. Bass has an ever-present punch, there is always a sense of presence, and highs are in perfect balance to the mids, no mat- ter what was on the original recording. •...
  • Page 220 3-56 OPERATION ORBAN MODEL 8500S can go without causing unacceptable listener fatigue. However, this sound may be useful for stations that are ordinarily heard very softly in the background be- cause it improves intelligibility under these quiet listening conditions. Stations...
  • Page 221 3-57 OPTIMOD-FM DIGITAL OPERATION Note: If the MB G (Gate Threshold) control is turned O , the HRESH DJ B control (in the Equalization screen) is disabled. MB Clipping sets the drive level to the multiband distortion controlling processing that precedes the final clipping section. The distortion-controlling section uses a combination of distortion-cancelled clipping and look-ahead processing to antici- pate and prevent excessive clipping distortion in the final clipper.
  • Page 222 3-58 OPERATION ORBAN MODEL 8500S control and to recall the preset that complements the program ma- XPANDER terial of the moment. Note also that it is virtually impossible to achieve undetectable dynamic noise reduc- tion of program material that is extremely noisy to begin with, because the program never masks the noise.

  • Page 223: Table 3-10: Mb Band Mix Controls

    3-59 OPTIMOD-FM DIGITAL OPERATION not affect the compressors’ gain reductions and can be used as a graphic equalizer to fine-tune the spectral balance of the program material over a ±6 dB range. There are two sets of mixer controls, one for the analog processing chain and one for the HD processing chain.
  • Page 224 3-60 OPERATION ORBAN MODEL 8500S overload, but unlike the MB B controls, does not affect the fre- quency response when a given band is below threshold and is thus pro- ducing no gain reduction. On/Mute switches allow you to listen to any band (or any combination of bands) in- dependently.
  • Page 225 3-61 OPTIMOD-FM DIGITAL OPERATION MB Limit Thr sets the threshold of the clipping distortion controller with reference to the threshold of the final clipper, in dB. For best clipping distortion control, most effective setting for this control is “0 dB” for almost all program material. However, the loudest and most intense-sounding presets rely on considerable clipping to achieve their loudness and brightness.
  • Page 226 3-62 OPERATION ORBAN MODEL 8500S termination and works in close cooperation with the band-5 multiband clipper. Functionally, this control is a mix control that adds a HF limiter gain reduction signal to the band 4 gain reduction signal to determine the total gain reduction in band 5.

  • Page 227: To Override The Speech/Music Detector

    3-63 OPTIMOD-FM DIGITAL OPERATION mode turns look-ahead on for speech material and off for music, using an automatic speech/music detector. Switching is seamless and click-free because we change the delay in the compressor control sidechains; this is not a way to reduce the 8500S’s throughput delay.

  • Page 228: About The 8500S' Shd / Digital Radio Processing

    Model 8500S/FM can be upgraded to an 8500S/HD in the field via the 8500SUPG/HD upgrade kit, which can be purchased from your Orban dealer. Units are upgraded from a PC; it is unnecessary to remove the 8500S from the rack.
  • Page 229 3-65 OPTIMOD-FM DIGITAL OPERATION to I , this will restore any edits you made to the HD controls be- OUPLING NDEPENDENT fore you set the FM>HD C back to C ONTROL OUPLING OUPLED To control excessive brightness in the HD processing when operating the HD and FM processing independently: •...

  • Page 230: Delay Difference Between Hd And Fm Outputs

    3-66 OPERATION ORBAN MODEL 8500S If the HD output is driving a channel without pre-emphasis but using a lossy codec, you may want to allow headroom to compensate for data reduction-induced peak overshoots at the receiver, which might otherwise cause clipping. In our experience, 2 dB is typically adequate.

  • Page 231: Hd I/O Setup Controls

    3-67 OPTIMOD-FM DIGITAL OPERATION HD I/O Setup Controls Input/Output > HD Digital Radio screen: Meter Sel determines if the Main Meter screen will display the left and right output levels of the FM processing (D ) or the left and right gain reductions of the ISABLED digital-channel look-ahead limiter (E NABLED...

  • Page 232: Digital Output

    3-68 OPERATION ORBAN MODEL 8500S are always set “stereo” even when the two audio channels carry identical mono signals. HD Bandwidth sets the audio bandwidth of the HD output from 15 to 20 kHz in 1 kHz steps. The user should carefully test the codec in use to ascertain if lowering the bandwidth to 15 kHz improves subjective quality.
  • Page 233 3-69 OPTIMOD-FM DIGITAL OPERATION Samp Rate (“Sample Rate”) sets the output sample rate of the digital-channel out- put to 32, 44.1, 48, 88.2, or 96 kHz. The 8500S’s fundamental sample rate is always 64 kHz, but the internal sample rate converter sets the rate at the 8500S’s digital output. This ad- justment allows you to ensure compatibility with downstream equipment requiring a fixed sample rate.

  • Page 234: Unique Hd Audio Controls

    3-70 OPERATION ORBAN MODEL 8500S follows the sample rate present at the selected input, regardless of the setting of the output sample rate selector. If no signal is provided to the 8500S Input or S , set SR S and select the desired output sample rate.
  • Page 235 3-71 OPTIMOD-FM DIGITAL OPERATION On 8500S PC Remote, there are buttons available on the button bar to toggle the FM HD mode. When the FM HD mode is I , a button on the toolbar NDEPENDENT toggles between corresponding FM and HD tabs (for example, between and HD C OMPRESSORS OMPRESSORS...

  • Page 236: Itu-R Multiplex Power Controller

    3-72 OPERATION ORBAN MODEL 8500S control will usually need to be set substantially below 0 dB unless IMITER the preset is quiet (like one of the presets). LASSICAL • When setting up an HD Radio facility, set the control to 0 dBFS. Then...

  • Page 237: Mpx Power Meter

    3-73 OPTIMOD-FM DIGITAL OPERATION sinewave that modulates the FM carrier to ±19 kHz (25.3% modulation re ±75 kHz deviation). Many European countries are now enforcing this recommendation. (See ITU-R 412 Compliance on page 3-12 for more information.) MPX Power Meter Version 1.1 of 8500S software added a MPX P meter that indicates MPX power OWER...

  • Page 238: Multiplex Power Threshold

    3-74 OPERATION ORBAN MODEL 8500S Multiplex Power Threshold Your Optimod provides a means to limit the integrated multiplex power to the ITU standard by a closed-loop technique that allows you to use any preset and to create customized presets freely. The multiplex power controller is adjusted via the ITU412- 9 control (see step 1 on page 2-22).

  • Page 239: Audio Processing And The Multiplex Power Threshold Control

    3-75 OPTIMOD-FM DIGITAL OPERATION to avoid overmodulating the transmitter. This would reduce the multiplex power by the same amount, forcing the multiplex power below the ITU requirement. To compensate for this, match the ITU412-9 control to the peak overshoot of the transmission system following the 8500S.

  • Page 240: Multiplex Power Control In Stand-Alone Stereo Encoder Mode

    3-76 OPERATION ORBAN MODEL 8500S erage power of the sinewave that produced ±19 kHz carrier deviation. In other words, whenever you start measuring, you must not exceed the total integrated power limit over the following 60 seconds. This makes it impractical to "bank" power over the full 60-second window. For ex-...

  • Page 241: Test Modes

    3-77 OPTIMOD-FM DIGITAL OPERATION Test Modes Setup: Test Parameter Units Default Range (CCW to CW) Step Labels MODE Operate Operate, Bypass, Tone −18 … +25 BYPASS GAIN TONE FREQ 16, 20, 25, 31.5, 40, 50, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 9500, 10000,...

  • Page 242: Getting The Bass Sound You Want

    ORBAN MODEL 8500S While this calibration may seem unintuitive, experience has shown that it greatly reduces calls to Orban customer service complaining that the frequency response of the transmission path is not flat when in fact the measurement in question was causing undetected clipping at high frequencies due to preemphasis.
  • Page 243 3-79 OPTIMOD-FM DIGITAL OPERATION settings in the factory presets have been adjusted with this tradeoff in TTACK mind, but you might prefer to make a different one. The threshold of the band 1 compressor will also affect bass punch. We recommend that you carefully study the setting of this control (and the B con- TTACK...

  • Page 244: Summary

    Before running 8500S PC Remote, you must have installed the appropriate Windows communications services on your computer. By default, the installer installs a short- cut to 8500SPC.exe on your desktop and in your Start Menu under Orban\Optimod 8500S. 8500S PC Remote can control only one 8500S at a time, but it can readily switch be- tween several 8500S.

  • Page 245: To Set Up A New Connection

    3-81 OPTIMOD-FM DIGITAL OPERATION Before your PC can communicate with a given 8500S, you must first set up a “con- nection,” which is information that allows PC Remote to locate and communicate with the 8500S. To set up a new connection: A) Launch 8500SPC.exe.

  • Page 246: To Modify A Control Setting

    “Loading system files, please wait.” When run, the Orban PC Remote software installer makes copies of all 8500S fac- tory preset files on your local hard drive. The PC Remote software reads these files to speed up its initialization.

  • Page 247: 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 248: To Restore Archived Presets, System Files, And Automation Files

    All User Presets are compatible with all 8500S software versions and are compatible with both 8500S/HD and 8500S/FM. If Orban adds new controls to a software ver- sion, the new software will assign a reasonable default value to any control missing in an old User Preset.

  • Page 249: To Modify Input /Output And System Setup

    3-85 OPTIMOD-FM DIGITAL OPERATION You can elect to restore all user presets (*.orb57user, *.orb), 8600 user presets (*.orb86suser), 5500 user presets (*.orb55user), 8400 user presets (*.orbu), 8500 user presets (*.orb85user), 8600 user presets (*.orb86user) , 8600S user presets (*.orb86suser), system files (*.orb57setup), and auto- mation files (*.orb57autom).

  • Page 250: To Modify Automation

    3-86 OPERATION ORBAN MODEL 8500S To set a control, click it (it will become highlighted) and then use the wheel on the mouse to adjust it. You can also use the + and – keys on the numeric keypad to adjust any control.

  • Page 251: About Aliases Created By Optimod 8500S Pc Remote Software

    Optimod 8500S PC Re- mote (usually \Program Files\Orban\Optimod 8500S). The folder has the same name as the Alias name. Once you establish the initial connection to the 8500S, all presets for that 8500S are automatically copied to the Alias folder;...
  • Page 252 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 8500Sv2). Each version of 8500S PC Remote will display all 8500S Aliases, even those pointing to 8500S with incompatible version numbers.

  • Page 253: Section 4 Maintenance

    OPTIMOD-FM DIGITAL MAINTENANCE Section 4 Maintenance Routine Maintenance The 8500S 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 254: Subassembly Removal And Replacement

    MAINTENANCE ORBAN MODEL 8500S Subassembly Removal and Replacement See page 6-27 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 255 OPTIMOD-FM DIGITAL MAINTENANCE B) Using a deep hex nut driver (preferred), a small crescent wrench, or a pair of slip-joint pliers (in an emergency), remove the nuts and lockwashers holding the four BNC connectors to the chassis. The Composite/SCA daughterboard can now be removed. 4.
  • Page 256 EMI that violates FCC and/or CE regulations. If the power supply fails, please contact Orban Customer Service (custserv@orban.com) to obtain an exact replacement.
  • Page 257 OPTIMOD-FM DIGITAL MAINTENANCE 9. Replacing the Composite/SCA Daughterboard Referring to step 3, follow the instructions in reverse. 10. Replacing the Front Panel Assembly: A) Set the front panel, face down, on a soft cloth to prevent scratches. B) Lightly reattach the bottom and top circuit boards by mating the four plugs and jacks.

  • Page 258: Field Audit Of Performance

    MAINTENANCE ORBAN MODEL 8500S Field Audit of Performance Required Equipment: • Ultra-low distortion sine-wave oscillator/THD analyzer/audio voltmeter With verified residual distortion below 0.01%. Audio Precision System One, or similar high-performance system. The NAB Broadcast and Audio System Test CD is an excellent source of test signals when used with a high-quality CD player.

  • Page 259: Table 4-1: Typical Power Supply Voltages And Ac Ripple

    The power supply is a module. In case of any power supply failure, the entire supply must be replaced by an exact replacement (available from Orban Service). Attempts to repair the supply on a component level and/or to replace the supply with a non-approved supply may compromise your Optimod’s compliance with...
  • Page 260 MAINTENANCE ORBAN MODEL 8500S b) Navigate to Setup > I/O C . Set controls as in the table > D ALIB ALIB below: DI REF VU ................–15.0 dBFS R CH BAL ..................0.0 dB c) Navigate to Setup > I/O C .

  • Page 261: Figure 4-1: Typical Frequency Response, 30Hz To 15 Khz

    OPTIMOD-FM DIGITAL MAINTENANCE C) Connect the audio voltmeter to the Left Analog Output. D) Adjust output trim VR301 to make the meter read +10.0 dBu. (0 dBu = 0.775V rms.) Verify a frequency reading of 400 Hz. E) Verify THD+N reading of <0.03% (<0.01% typical) using a 22 kHz low pass fil- ter in the distortion analyzer.
  • Page 262 4-10 MAINTENANCE ORBAN MODEL 8500S H) Repeat steps (C) through (G) for the right channel. 5. Check distortion performance of Analog I/O. A) Verify 8500S 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)] and set the B...
  • Page 263 4-11 OPTIMOD-FM DIGITAL MAINTENANCE D) Set the I to D NPUT IGITAL E) Connect the digital source generator to the AES3 Digital Input XLR connector of the 8500S. F) Set the frequency of the digital source generator to 400 Hz and its output level to 18 dB below full scale.
  • Page 264 4-12 MAINTENANCE ORBAN MODEL 8500S An analog oscilloscope can be used for a more thorough test. Set the scope for X/Y operation (i.e., so that it generates Lissajous patterns). Connect the reference generator to one input and the 8500S’s digital output to the other input.
  • Page 265 4-13 OPTIMOD-FM DIGITAL MAINTENANCE You will have to press the N button to access all of these parameters. E) Navigate to Setup > S TEREO NCODER F) Set the C control to make the stereo monitor read 100% total modu- lation.
  • Page 266 4-14 MAINTENANCE ORBAN MODEL 8500S tion executes when you activate the input. To program a GPI input, see Remote Control Interface Programming on page 2-42. B) You can test the RS-232 port for functionality by verifying that you can con- nect to a PC through a null modem cable.

  • Page 267: Section 5 Troubleshooting

    OPTIMOD-FM DIGITAL TROUBLESHOOTING Section 5 Troubleshooting Problems and Potential Solutions Always verify that the problem is not the source material being fed to the 8500S, or in other parts of the system. RFI, Hum, Clicks, or Buzzes A grounding problem is likely. Review the information on grounding on page 2-11. The 8500S has been designed with very substantial RFI suppression on its analog and digital input and output ports, and on the AC line input.

  • Page 268: Unexpected Delay Between The Program Feed And The On-Air Signal

    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 269: Audible Noise On Air

    STL may only be 70-75 dB. In this case, it is wise to use the Orban 8200ST Studio AGC to perform the AGC function 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 270: Whistle On Air, Perhaps Only In Stereo Reception

    TROUBLESHOOTING ORBAN MODEL Whistle on Air, Perhaps Only in Stereo Reception The most likely cause is oscillation in the analog input or output circuitry. If the oscil- lation is in the output circuitry and is between 23 and 53 kHz, it will be detected in a receiver’s stereo decoder and translated down into the audible range.

  • Page 271: Shrill, Harsh Sound

    OPTIMOD-FM DIGITAL TROUBLESHOOTING Amplitude modulation of the carrier that is synchronous with the program (“syn- chronous AM”) can cause program-related crosstalk into subcarriers. Synchronous AM should be better than 35 dB below 100% modulation as measured on a syn- chronous AM detector with standard FM de-emphasis (50μs or 75μs). The subcarrier receiver itself must receive a multipath-free signal, and must have a wide and symmetrical IF passband and a linear, low-distortion FM demodulator to prevent program-related crosstalk into subcarriers.

  • Page 272: System Will Not Pass Emergency Alert System ("Eas" Usa Standard) Tones At The Legally Required Modulation Level

    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 273: Harsh Sibilance ("Ess" Sounds) In The Hd Channel

    The 8500S/FM can be upgraded to an 8500S/HD in the field by installing the plug-in control module contained in the 8500SUPG/HD upgrade kit, which can be purchased from your Orban dealer. General Dissatisfaction with Subjective Sound Quality The 8500S is a complex processor that can be adjusted for many different tastes.

  • Page 274: Security Passcode Lost (When Unit Is Locked Out)

    TROUBLESHOOTING ORBAN MODEL controls and have adjusted the subjective setup controls in detail to their satisfac- tion. Such users must fully understand the material in Section 3 of this manual to achieve the best results from this exercise. By comparison to competitive processors, the 8500S offers a uniquely favorable set of trade-offs between loudness, brightness, distortion, and build-up of program density.

  • Page 275: Troubleshooting Connections

    OPTIMOD-FM DIGITAL TROUBLESHOOTING Troubleshooting Connections • If you get an error message such as “the specified port is not connected” or “There is no answer”… You may have the wrong interface type set on your 8500S. Navigate to Setup > &...

  • Page 276: Os-Specific Troubleshooting Advice

    5-10 TROUBLESHOOTING ORBAN MODEL F) Select “Advanced.” G) Uncheck the “Use default gateway on remote network” box. H) Select “OK.” If this “Use default gateway on remote network” box is not selected, the gateway will not point to the 8500S unit when you establish a direct or modem connection.

  • Page 277: Troubleshooting Windows 2000 Modem Connect

    5-11 OPTIMOD-FM DIGITAL TROUBLESHOOTING Q) Click “Cancel” to dismiss the “Connect [nnnn]” dialog box R) Restart your computer. (This resets the serial port and reduces the likelihood that you will encounter problems connecting to the 8500S.) S) If you see: “Error 777: The connection failed because the modem (or other connecting device) on the remote computer is out of order”: The “remote computer”...

  • Page 278: Troubleshooting Windows Xp Direct Connect

    5-12 TROUBLESHOOTING ORBAN MODEL E) Select the “General” tab and make sure that “Connect Using” displays the correct modem and port. F) Click the “Configure…” button. G) Set the “Maximum Speed (bps) to 115200. H) Check the “Enable hardware flow control,” make sure all other hardware fea- tures are unchecked.

  • Page 279: Troubleshooting Windows Xp Modem Connect

    5-13 OPTIMOD-FM DIGITAL TROUBLESHOOTING D) Click the “Networking” tab. E) Set “Type of dial-up server I am calling” to “PPP: Windows 95/98/NT4/2000, Internet” F) Select the “Settings” button and make sure all PPP settings are unchecked, then click “OK.” G) In “This connection uses the following items,” uncheck all except for “Internet Protocol (TCP/IP).”...

  • Page 280: Troubleshooting Ic Opamps

    5-14 TROUBLESHOOTING ORBAN MODEL F) In “This connection uses the following items,” uncheck all except for “Internet Protocol (TCP/IP).” You can also leave “QoS Packet Scheduler” checked if you like. G) In “This connection uses the following items,” select “Internet Protocol (TCP/IP)”...

  • Page 281: Technical Support

    Returned units will be returned C.O.D. if the unit is not under warranty. Orban will 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).
  • Page 282 5-16 TROUBLESHOOTING ORBAN MODEL berglass or polyester sealing tape, top and bottom in an “H” pattern. Narrower or parcel-post type tapes will not withstand the stresses applied to commercial ship- ments. Mark the package with the name of the shipper, and with these words in red: DELICATE INSTRUMENT, FRAGILE! Insure the package properly.

  • Page 283: 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 284: Installation

    TECHNICAL DATA ORBAN MODEL 8500S Processing Resolution: Internal processing has 24 bit (fixed point) or higher resolution. Installation Delay Defeatable Analog FM Processing delay: 0.27 to 16.384 seconds, adjustable in one- sample increments at 64 kHz sample rate to allow the delays of the analog and digital paths in the HD Radio system to be matched at the receiver output.
  • Page 285 OPTIMOD-FM DIGITAL TECHNICAL DATA Digital Audio Input Configuration: Stereo per AES3 standard, 24 bit resolution, software selection of stereo, mono from left, mono from right or mono from sum. Sampling Rate: 32, 44.1, 48, 88.2, or 96 kHz, automatically selected. Connector: XLR-type, female, EMI-suppressed.
  • Page 286 TECHNICAL DATA ORBAN MODEL 8500S AES3id Input Configuration: The Wordclock/10 MHz Sync Reference can also be configured as an AES3id digital audio input to drive the input of the stereo encoder. This facilitates a “rat- ings encoder loop-through” connection, where the input of the ratings encoder is driven from one of the 8500S’s AES3 outputs and the encoder’s output is returned to the AESid...
  • Page 287 OPTIMOD-FM DIGITAL TECHNICAL DATA SCA Sensitivity: Variable from <100 mV p-p to >10 V p-p to produce 10% injection assum- ing 100% modulation = 4 V p-p at the 8500S’s composite outputs. Rear-panel accessi- ble PC-board-mounted trim pots allow user to adjust the sensitivities of the two SCA in- puts.

  • Page 288: Circuit Description

    RFI/EMI: Tested according to Cenelec procedures. FCC Part 15 Class A device. Shipping Weight: 10 lbs / 4.6 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 289: Control Circuits

    DSP code download has finished. If you hear a brief audio mute on air and you know that its input was not interrupted, you can assume that the 8500S has rebooted for some reason. Be prepared to convey this fact to Orban cus- tomer service if you call for technical assistance.
  • Page 290 TECHNICAL DATA ORBAN MODEL 8500S Remote Interface and RS-232 Interfaces Located on control board A remote interface connector and circuitry implements remote control of certain operating modes; Model 8500S OPTIMOD-FM has eight remote contact closure inputs. A valid remote signal is a momentary pulse of current flowing through remote signal pins.

  • Page 291: Input Circuits

    OPTIMOD-FM DIGITAL TECHNICAL DATA essor, which sends the appropriate LED control words (eight bits at a time) to the data latches that drive the LEDs directly. Component-Level Description: The meter LED matrix consists of ten 10-segment LED bar graph assemblies (CR1-CR9, CR16) and one discrete LED (CR10).
  • Page 292 6-10 TECHNICAL DATA ORBAN MODEL 8500S and scales the signal to the proper level for the analog-to-digital (A/D) con- verter IC208. IC207A and associated components comprise a servo amp to cor- rectly DC-bias the signal feeding the A/D converter. R253, R255-R257, C217, C219 make an attenuator / RC filter necessary to filter high frequency energy that would otherwise cause aliasing distortion in the A/D converter.

  • Page 293: Output Circuits

    6-11 OPTIMOD-FM DIGITAL TECHNICAL DATA tor that locks to the 27 MHz output of IC1101 and generates four clock signals from it. The four outputs of IC1102 are applied to the CPLD, which closes the phase-locked loop as directed by the PIC and main microprocessor. The CPLD generates the clocks (FCLK and BCLK) used by the DSP.
  • Page 294 6-12 TECHNICAL DATA ORBAN MODEL 8500S a floating transformer; its differential output level is independent of whether one side of its output is floating or grounded. IC301 and its right channel counterpart IC302 are socketed in through-hole packages to facilitate field re- placement with simple tools.

  • Page 295: 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 296: Abbreviations

    Because of safety and EMI suppression requirements in the power supply, there are no user-serviceable parts in it. In case of failure, replace the entire supply with an Orban-supplied replacement (Orban part number 29270.000.01), which ensures that your Optimod will continue to meet all regulatory requirements for safety and emis- sions.
  • Page 297 6-15 OPTIMOD-FM DIGITAL TECHNICAL DATA Federal Communications Commission (USA regulatory agency) FDNR frequency-dependent negative resistor⎯an element used in RC-active filters field effect transistor fast Fourier transform FIFO first-in, first-out gain reduction HD Radio See IBOC high-frequency high-pass IBOC “In-Band On-Channel” — a form of digital radio commercialized by iBiquity Corporation where the digital carriers use a form of COFDM modulation and share the frequency alloca- tion of the analog carriers.

  • Page 298: Parts List

    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 299 6-17 OPTIMOD-FM DIGITAL TECHNICAL DATA Control Board PART # DESCRIPTION COMPONENT, IDENTIFIER 24983.000.01 IC 7064STC100-10 27147.124.01 IC SOCKET DIP 24 PIN DUAL SU12 24331.033.01 IC VOLTAGE REGULATOR LT1963-3.3 SOT223 20233.472.01 RESISTOR NETWORK 4.7K CTS745C RN1, RN2, RN3, RN4 8R BUSS 21136.010.01 CAPACITOR SMT 1206 10PF 5 24331.025.01...

  • Page 300: Combined Input/Output And Dsp (I/O+Dsp) Board

    6-18 TECHNICAL DATA ORBAN MODEL 8500S Control Board PART # DESCRIPTION COMPONENT, IDENTIFIER R76, R77, R80, R82 28091.000.01 XTAL 25MHZ RXD MP35L SMD 24979.000.01 IC BAT54C-7 CR11, CR12 24900.000.01 IC HEX INVERTER SMT U23, U24 22209.000.01 DIODE SCHOTTKY 1A 60V SMD CR6, CR7, CR8, CR9 22101.001.01...
  • Page 301 6-19 OPTIMOD-FM DIGITAL TECHNICAL DATA I/O+DSP BOARD PART # DESCRIPTION COMPONENT IDENTIFIER 24516.000.01 IC ICS501MLF IC400 24681.000.01 IC PCM1798DB D/A CNVRTR IC401 24843.000.01 IC CD74HC4046AM 16-SOIC IC1104 29552.000.01 INDUCTOR POWER 1.5UH 9A SMD L1201, L1202 24348.000.01 IC REG SYNC BUCK CLK 4A IC1201, IC1202 21329.000.01 CAPACITOR TANT 47uF 6.3V 20% sm...
  • Page 302 6-20 TECHNICAL DATA ORBAN MODEL 8500S I/O+DSP BOARD PART # DESCRIPTION COMPONENT IDENTIFIER TP1201, TP1202, (TP1203, 27630.001.01 JUMPER PM MOUNT TEST PT TP1204, TP1205, NO STUFF) L201, L202, L301, L302, L501, 29539.000.01 CHOKE COMM MODE 1K OHM SM L502, L503, L504, L5022 SL203, SL204, SL205, SL206, 27408.003.01...
  • Page 303 6-21 OPTIMOD-FM DIGITAL TECHNICAL DATA I/O+DSP BOARD PART # DESCRIPTION COMPONENT IDENTIFIER (C211, C212, C213, C214, NO 21170.282.01 CAPACITOR 0805 .0082U 50 5% COG STUFF) L207, L208, L209, L210, (L311, 29522.000.01 INDUCTOR 1200UH 5% 1-M-10-22 L312, L313, L314, NO STUFF) 20128.000.01 RESISTOR 0 OHM 0805 R505, R506, R1007, R1109...
  • Page 304 6-22 TECHNICAL DATA ORBAN MODEL 8500S I/O+DSP BOARD PART # DESCRIPTION COMPONENT IDENTIFIER C430, C601, C602, C603, C604, C605, C606, C607, C608, C609, C610, C611, C612, C613, C614, C615, C616, C617, C618, C619, C620, C621, C622, C623, C624, C625, C626, C627, C628, C629,...

  • Page 305: Composite/Sca Daughterboard

    6-23 OPTIMOD-FM DIGITAL TECHNICAL DATA I/O+DSP BOARD PART # DESCRIPTION COMPONENT IDENTIFIER R321, R322, R323, R324, R325, 20130.348.01 RESISTOR 1/8W 1% 3.48K 0805 R326, R415, R416, R417, R418, R1215 20130.162.01 RESISTOR 1/8W 1% 1.62K 0805 R241, R242, R243, R244, R1212 R203, R204, R205, R206, R1003, 20130.100.01 RESISTOR 1.00K 1% 0805...

  • Page 306: Display Board

    6-24 TECHNICAL DATA ORBAN MODEL 8500S COMPOSITE/SCA DAUGHTERBOARD PART # DESCRIPTION COMPONENT IDENTIFIER 20129.604.01 RESISTOR 0805 604 Ω 1% 1/8W R5, R6, R7, R8, R9, R10 20130.210.01 RESISTOR 1/8W 1% 2.10K 0805 R3, R4 20130.348.01 RESISTOR 1/8W 1% 3.48K 0805 R13, R14, R15, R16 20128.075.01...
  • Page 307 6-25 OPTIMOD-FM DIGITAL TECHNICAL DATA Function Description Drawing Page Chassis Circuit Board Locator and Basic In- Top view 6-27 terconnections (not to scale) Control board Control microprocessor. Services Parts Locator 6-28 front panel, serial port, Ethernet, Drawing and DSP+I/O board. Contains: General Purpose bus, address de- Schematic 1 of 5...
  • Page 309 6-27 OPTIMOD-FM DIGITAL TECHNICAL DATA WARNING: INPUT/OUTPUT PARTS SECTION UNDER SHIELD ARE EXPOSED TO AC LINE CONTROL INPUT/OUTPUT+DSP BOARD BOARD POWER SUPPLY DSP SECTION DISPLAY ASSEMBLY...
  • Page 310 6-28 TECHNICAL DATA ORBAN MODEL 8500S CONTROL BOARD PARTS LOCATOR...
  • Page 311 6-29 OPTIMOD-FM DIGITAL TECHNICAL DATA C4 4 10UF +3.3 V C4 5 10.0 K 0.1 UF S Y S TE M_RE S E T- N (S HT 5) U1 6 U5 MIC8 115TU +3.3 V U1 B S C5 20 MR- n V CC C2 0...
  • Page 312 6-30 TECHNICAL DATA ORBAN MODEL 8500S MD[0..3 1] MA[0..1 2] U2 A MT4 8LC1 6 U3 A MT4 8LC1 6 U1 A S C5 20 V 26 MA12 MA12 MD1 5 MA12 MD3 1 MA12 DQ1 5 DQ1 5 U2 6...
  • Page 313 6-31 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3 V P CI_ AD[0..3 1] RNE T4 .7 K +3.3 V U1 C S C5 20 U1 0A DP 83816AV NG +3.3 V P CI_ AD3 1 P CI_ AD3 1 RE Q4 AD3 1 AD3 1 P CI_ AD3 0 P CI_ AD3 0...
  • Page 314 6-32 TECHNICAL DATA ORBAN MODEL 8500S P WRGOOD +3.3 V (S HT2 ) +3.3 V R4 3 R4 4 R4 5 R4 6 100K 100K 100K 0 OHM R2 6 U1 D S C5 20 (NO- S TUFF) 4.7 5K...
  • Page 315 6-33 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3 V U1 0B DP 83816AV NG +3.3 V +3.3 V (NO- S TUFF) +3.3 V U2 B MT4 8LC1 6 U3 B MT4 8LC1 6 U4 B E 28F1 28 C2 01 RE S E RV E D 1.0 UF RE S E RV E D V S S...
  • Page 316 6-34 TECHNICAL DATA ORBAN MODEL 8500S 5700/8600S I/O-DSP BOARD PARTS LOCATOR DRAWING 32370.860.01...
  • Page 317 6-35 OPTIMOD-FM DIGITAL TECHNICAL DATA IRQB- N DSP CONTROL INTERFACE I/O CONTROL INTERFACE 62370.000.04.1_Sheet07.SchDoc 62370.000.04.1_Sheet10.SchDoc IRQB- N DSP _RST- N EXTAL DSP _RST- N IRQB- N DSP _RST- N DSP _RST- N START START START SSI _DO MI SC_CS- N SSI _DO SSI _DO MI SC_CS- N...
  • Page 318 6-36 TECHNICAL DATA ORBAN MODEL 8500S R233 R245 J201 FEM ALE L203 C201 3.65K 1.50K SOCK ET FILTER 47PF IC2 01A L201 0.1% R203 L207 R215 8-DI P 5%,100V IND 1K C205 E201 1200µH 47PF 5%,100V 1000PF C207 OP A2134P A...
  • Page 319 6-37 OPTIMOD-FM DIGITAL TECHNICAL DATA L307 +5VA C303 J301 MALE L303 FILTER R331 L311 R335 1.0UF AGND 1200µH L301 C302 C306 IC301 1000PF IND 1K R339 C323 C327 DRV134PA 1.0UF 0.1UF +15V SOCK ET 8-DI P C321 C305 R311 R307 R317 LEFT / 1 8.45K...
  • Page 320 6-38 TECHNICAL DATA ORBAN MODEL 8500S R407 R411 R415 COM POSITE D/A CONVERTER 2.10K 2.10K 3.48K C423 R419 IC401 +5VA 82.5K 22PF MONO VCC2L C403 IC4 03A IC4 05A C408 10UF 0.1UF CHSL AGND3L AGND5 OP A2134UA OP A2134UA IOUTL-...
  • Page 321 6-39 OPTIMOD-FM DIGITAL TECHNICAL DATA 8600S I/O BOARD: COMPOSITE/SCA DAUGHTERBOARD SHEET 4b of 12 62310.000.02.1...
  • Page 322 6-40 TECHNICAL DATA ORBAN MODEL 8500S IC503B IC503A REF_M CLK REF_M CLK REF_M CLK (SHT11) REF_MCLK RCKIB RCKIA IN_FCLK IN_FCLK OUT_FCLK (SHT11) IN_FCLK LRCKIB LRCKOB LRCKIA LRCKOA IN_BCLK OUT_BCLK BCKIB BCKOB BCKIA BCKOA IN_BCLK DIN1_DATA (SHT11) DOUT1_DATA (SHT11) IN_BCLK SDINB...
  • Page 323 6-41 OPTIMOD-FM DIGITAL TECHNICAL DATA (5500 NO-STUF F) (5500 NO-STUF F) IC601A IC602A IC603A IN_FCLK FSY NC FSY NC (SHT11) IN_FCLK FSR_0/PC1_0 FST_0/PC4_0 FSR_0/PC1_0 FST_0/PC4_0 FSR_0/PC1_0 FST_0/PC4_0 IN_BCLK BCLK BCLK (SHT11) IN_BCLK SCKR_0/PC0_0 SCKT_0/PC3_0 SCKR_0/PC0_0 SCKT_0/PC3_0 SCKR_0/PC0_0 SCKT_0/PC3_0 HCKR_0/PC2_0/SRCK HCKT_0/PC5_0/STCLK HCKR_0/PC2_0/SRCK HCKT_0/PC5_0/STCLK HCKR_0/PC2_0/SRCK...
  • Page 324 6-42 TECHNICAL DATA ORBAN MODEL 8500S IC601B IC602B (5500 NO-STUF F) IC603B (5500 NO-STUF F) EXTAL EXTAL EXTAL EXTAL (SHT11) EXTAL EXTAL XTAL EXTAL XTAL EXTAL XTAL PINIT/NMI0 PINIT/NMI0 PINIT/NMI0 +3.3V +3.3V +3.3V DSP _RST- N DSP _RST- N DSP _RST- N...
  • Page 325 6-43 OPTIMOD-FM DIGITAL TECHNICAL DATA IC601C IC602C (5500 NO-STUF F) IC603C (5500 NO-STUF F) LAD0/PA0 LALE LAD0/PA0 LALE LAD0/PA0 LALE LAD1/PA1 LAD1/PA1 LAD1/PA1 LAD2/PA2 LCS0 LAD2/PA2 LCS0 LAD2/PA2 LCS0 LAD3/PA3 LCS1 LAD3/PA3 LCS1 LAD3/PA3 LCS1 LAD4/PA4 LCS2 LAD4/PA4 LCS2 LAD4/PA4 LCS2 LAD5/PA5 LCS3...
  • Page 326 6-44 TECHNICAL DATA ORBAN MODEL 8500S IC601D IC602D (5500 NO-STUF F) IC603D (5500 NO-STUF F) +3.3V +3.3V +3.3V C607 C608 C609 IO_GND IO_VDD IO_GND IO_VDD IO_GND IO_VDD 0.01UF 0.01UF 0.01UF IO_GND IO_VDD IO_GND IO_VDD IO_GND IO_VDD C619 C620 C621 IO_GND...
  • Page 327 6-45 OPTIMOD-FM DIGITAL TECHNICAL DATA +3.3V L1001 HZ0805G102R-10 +3.3V CR1001 C1019 IC501D IC SRC4382I PFB C1025 DI MRB0530 C1026 0.1UF +3.3V DGND IC1001 0.1UF 0.1UF IC501C R1001 2 OHM SCL/CCLK GPO1 R1007 A0/CS GPO2 A1/CDIN GPO3 0 OHM SDA/CDOUT GPO4 VDD33 SEL _L -N (SHT11)
  • Page 328 6-46 TECHNICAL DATA ORBAN MODEL 8500S IC1 103 RXCKO_1 IC606_SDO2_1 (SHT5) (SHT6) RXCKO_1 I0 (429) I0 (3) IC606_SDO2_1 RX_LRCK_1 IC606_SDO2_3 (SHT5) (SHT6) RX_LRCK_1 I0 (426) I0 (6) IC606_SDO2_3 RX_BCLK_1 IC605_SDO5_3 (SHT5) (SHT6) RX_BCLK_1 I0 (423) I0 (9) IC605_SDO5_3 DIN1_DATA IC605_SDO4_3...
  • Page 329 6-47 OPTIMOD-FM DIGITAL TECHNICAL DATA FROM POW ER SUPPLY TO CONTROL PCA C1227 R1201 TP1205 (NO-STUFF) IC1201 2 OHM 0.01UF J1203 J1201 C1209 C1219 SS/TRCK +3.3V 1.0UF 0.1UF L 1201 C1239 C1240 TP1203 (NO-STUFF) PVIN C1235 10UF 0.1UF +3.3V R1203 2 OHM 1.5uH C1201 HDR 2...
  • Page 330 6-48 TECHNICAL DATA ORBAN MODEL 8500S FRONT REAR FRONT PANEL PARTS LOCATOR DIAGRAM 32275.000.09...
  • Page 331 6-49 OPTIMOD-FM DIGITAL TECHNICAL DATA IC7C IC7F ROW0 COL7 ROW1 COL6 ROW2 COL5 ROW3 COL4 RCPT,1X10 .1 74HC14A 74HC14A ROW4 COL3 ROW5 COL2 ROW26 IC7D COL22 COL14 ROW6 COL1 ROW27 COL16 COL13 ROW7 COL0 ROW28 COL23 COL12 ROW29 COL17 COL11 RES_NET ROW9 74HC14A...
  • Page 332 6-50 TECHNICAL DATA ORBAN MODEL 8500S CR17 HDR 2_RA CR1A CR1B CR1C CR1D CR1E CR1F CR1G CR1H CR1I CR1J CR2A CR2B CR2C CR2D CR2E CR2F LED BI-COLOR FP_ROW0 FP_ROW1 FP_ROW2 HDR 1X10 .1 +5V_FP FP_ROW3 FP_ROW26 FP_ROW27 FP_COL22 FP_COL14 FP_ROW28...
  • Page 333 6-51 OPTIMOD-FM DIGITAL TECHNICAL DATA P4-1 and P4-2 provide GND to gnd plane on front bd. There is no other connection to GND on the front bd to the plane. IC7C IC7F 74HC14A 74HC14A IC7D RES_NET 74HC14A D[0..7] D[0..7] 100 OHM 74AC574 74FCT574 IC7E...
  • Page 334 6-52 TECHNICAL DATA ORBAN MODEL 8500S...
  • Page 335 6-53 OPTIMOD-FM DIGITAL TECHNICAL DATA...

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