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Orban OPTIMOD-AM 9300 Operating Manual

Digital audio processor optimod-am 9300
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Operating Manual

OPTIMOD-AM
9300
Digital Audio Processor
Version 1.0 Software

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Summary of Contents for Orban OPTIMOD-AM 9300

  • Page 1: Operating Manual

    Operating Manual OPTIMOD-AM 9300 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 AbschalAMerhaltens ersetzen. Sicherungen nie überbrücken. Jedwede Beschädigung des Netzkabels vermeiden. Netzkabel nicht knicken oder quetschen. Beim Abziehen des Netzkabels den Stecker und nicht das Kabel enfassen.
  • Page 5 (2) Check the other sections of the Manual (consult the Table of Contents and Index) to see if there might be some sug- gestions regarding your problem. (3) After reading the section on Factory Assistance, you may call Orban Customer Service for advice during normal Cali- fornia business hours. The number is (1) 510 / 351-3500.
  • Page 6 All trademarks are property of their respective companies. This manual is part number 96126.105.03 Published April 2009 © Copyright Orban 8350 East Evans Suite C4, Scottsdale, AZ 85260 USA Phone: (1) (480) 403-8300; Fax: (1) (480) 403-8301; E-Mail: custserv@orban.com; Site: www.orban.com...
  • Page 7 Operating Manual OPTIMOD-AM 9300 Digital Audio Processor Version 1.0 Software...

  • Page 8: Table Of Contents

    Table of Contents Index.........................0-8 Section Introduction ............................1-1 .......................1-1 BOUT THIS ANUAL OPTIMOD-AM 9300 D ............1-1 IGITAL UDIO ROCESSOR Making the Most of the AM Channel..............1-2 Controllable and Adjustable...................1-2 Versatile Installation....................1-3 OPTIMOD-AM....................1-4 RESETS IN Factory Presets ......................1-5 User Presets ......................1-5 ..................1-5...
  • Page 9 Figure 2-1: AC Line Cord Wire Standard)................. 2-2 Figure 2-2: Wiring the 25-pin Remote Interface Connector ........... 2-3 Figure 2-3: 9300 Serial Port Pin Identification..............2-4 Figure 2-4: Jumper Positions, Monitor Roll-Off Filter ............. 2-4 Figure 2-5: Frequency Response Curves as Function of R...
  • Page 10 9300 PC R ............2-44 NSTALLING EMOTE ONTROL OFTWARE Installing the Necessary Windows Services............2-44 Check Hardware Requirements................2-45 Running the Orban Installer Program ..............2-46 Setting Up Ethernet, LAN, and VPN Connections ..........2-46 Conclusion......................2-47 .............2-47 YNCHRONIZING PTIMOD TO A ETWORK IMESERVER Table 2-1: NIST-referenced timeservers (2006).............. 2-48 .............2-51...
  • Page 11 To group multiple 9300s: ..................3-43 Navigation Using the Keyboard ................3-43 To Quit the Program....................3-43 About Aliases created by Optimod 9300 PC Remote Software ......3-43 Multiple Installations of Optimod 9300 PC Remote ...........3-44 To share an archived User Preset between 9300s: ............3-45...
  • Page 12 General Dissatisfaction with Subjective Sound Quality..........5-5 Security Passcode Lost (When Unit is Locked Out) ............5-6 Connection Issues between the 9300 and a PC, Modem, or Network ....5-6 Troubleshooting Connections.................5-6 You Cannot Access the Internet After Making a Direct or Modem Connection to the 9300: ........................5-7...
  • Page 13 Function Description Drawing Page Chassis Circuit Board Locator and Basic In- Top view 6-21 terconnections (not to scale) Control board Control microprocessor. Services Parts Locator 6-22 front panel, serial port, Ethernet, Drawing and DSP+I/O board. Contains: General Purpose bus, address de- Schematic 1 of 5 6-23 coder, DSP, and I/O interface...

  • Page 14: Index

    2- · 9 antenna system 1- · 17 archiving presets 3- · 40 asymmetry 9300 OPTIMOD-AM 1- · 1 inverting 2- · 32 asymmetry 1- · 15, 16 attack 3- · 28 attack time controls 3- · 35...
  • Page 15 Windows XP 5- · 10 bounce 1- · 13 computer interface buttons RS-232 2- · 7 escape 2- · 12, 1 serial 2- · 7 modify 2- · 12, 1 computer interface 1- · 7 next 2- · 12, 1 connecting previous 2- ·...
  • Page 16 Firewall 2- · 46, 39 frequency response 2- · 23 Firmware HF Curve control 3- · 21 updating 9300 2- · 73 HF Gain control 3- · 20 five-band HF processing 3- · 6 attack time controls 3- · 35 band on/off switch 3- ·...
  • Page 17 · 8 idle gain 3- · 27 lock input driven equipment cannot lock to 9300 output analog, connecting 2- · 8 5- · 5 analog, specifications 6- · 2 lockout digital, specifications 6- · 3 immediate 2- · 39 meters 2- ·...
  • Page 18 NAB Broadcast and Audio System Test CD programming 2- · 37 4- · 5 recovering from lost 2- · 40 network Orban installer program 2- · 46 timeserver 2- · 47 PC board locator diagram 6- · 21 networking 2- · 42 PC control NEXT button 2- ·...
  • Page 19 2- · 12, 1 testing 4- · 10 Software wiring 2- · 3 remote interface connector 2- · 7 updating 9300 2- · 73 software updates 1- · 3 resolution Sound Technology 4- · 5 specification 6- · 1 reveberation 3- ·...
  • Page 20 installation 5- · 1 specifications 6- · 1 tv presets 3- · 15 spectrum analyzer 4- · 5 sports 3- · 32 Stanford Research Systems 4- · 5 station ID setting 2- · 19 unlock front panel 2- · 39 unpacking 2- ·...

  • Page 23: Section 1 Introduction

    Because OPTIMOD-AM incorporates several audio processing innovations exclusive to Orban products, you should not assume that it can be operated in the same way as less sophisticated processors. If you do, you may get disappointing results.

  • Page 24: Making The Most Of The Am Channel

    AM mud, it is very important that the source audio be as clean as possible. Orban's publication Maintaining Audio Quality in the Broadcast Facility (available in .pdf form from ftp.orban.com) contains valuable information and specific suggestions for...

  • Page 25: Versatile Installation

     A Bypass Test Mode can be invoked locally, by remote control (from either the 9300’s GPI port or the 9300 PC Remote application), or by automation to permit broadcast system test and alignment or “proof of performance” tests. ...

  • Page 26: Presets In Optimod-Am

    This filter emulates the frequency response of an average receiver.  The 9300 includes analog and AES3 digital inputs and outputs. Both the digi- tal input and the digital output are equipped with sample-rate converters and can operate at 32 kHz, 44.1 kHz, 48, 88.2, and 96 kHz sample rates. The digital output can be pre-emphasized to the J.17 standard.

  • Page 27: Factory Presets

    You can store more than 100 User Presets, limited only by available memory in your 9300 (which will vary depending on the version of your 9300’s software). You can give your preset a name up to 18 characters long.

  • Page 28: Analog Input/Outputs

    OPTIMOD-AM so that it automatically switches back to the analog input. The 9300 can process the signal from the left, right, or sum of the left and right channels of either the analog or the digital input.

  • Page 29: Computer Interface

    INTRODUCTION Computer Interface On the rear panel of the 9300 are an RS-232 serial port and a 100 Mbps Ethernet port for interfacing to IBM-compatible PCs either locally or through a TCP/IP net- work. These computer interfaces support remote control and metering, and allow downloading software upgrades.

  • Page 30: Best Location For Optimod-Am

    AES3 connection (if the transmitter has a digital input available). If this is impossible, the next best arrangement is to feed the 9300’s AES3 digital output through an all-digital, uncompressed path to the trans- mitter's exciter.

  • Page 31: If The Transmitter Is Accessible

    NRSC preem- phasis at the link’s output. If only an analog link is available, use a 9300’s audio output and feed the audio di- rectly into the link. If possible, request that any transmitter protection limiters be adjusted for minimum possible action —...

  • Page 32: Digital Links

    9300 to the transmitter. For any lossy compression system the higher the data rate, the less the peak levels will be corrupted by added noise, so use the highest data rate practical in your system.

  • Page 33: Analog Microwave Stls

    (if any). The 9300 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...

  • Page 34: Analog Landline (Ptt/Post Office Line)

    1-12 INTRODUCTION ORBAN MODEL 9300 frees the system from potential overshoot. (The Orban 6300 can be configured to produce a pre-emphasized output.) Further, it is common for a microwave STL to bounce because of a large infrasonic peak in its frequency response caused by an under-damped automatic frequency control (AFC) phase-locked loop.

  • Page 35: Power Supplies

    1-13 OPTIMOD-AM DIGITAL INTRODUCTION The highly processed output of OPTIMOD-AM is carefully band-limited and peak- controlled. This output will often contain waveforms with flattops like square waves. If the transmitter has constant group delay above 30Hz, these difficult wave- forms will be transmitted intact and peak modulation will be accurately controlled. However, if low-frequency response is more than 3dB down at 0.15Hz, as would be true if a high-pass filter is present, the group delay above 30Hz will not be constant.

  • Page 36: Pre-1965 Transmitters

    1-14 INTRODUCTION ORBAN MODEL 9300 Sag is a result of inadequate steady-state regulation. It causes the conventional car- rier shift that is seen on a modulation monitor. Good transmitter engineering prac- tice usually limits this shift to -5% (which corresponds to about 0.5dB — not a highly significant loudness loss).

  • Page 37: Asymmetry

    1-15 OPTIMOD-AM DIGITAL INTRODUCTION Asymmetry While the physics of carrier pinch-off limit any AM modulation system to an absolute negative modulation limit of 100%, it is possible to modulate positive peaks as high as desired. In the United States, the FCC permits positive peaks of up to 125% modu- lation.
  • Page 38 1-16 INTRODUCTION ORBAN MODEL 9300 OPTIMOD-AM was designed with the assumption that one audio processor would be devoted to no more than two transmitters, usually called main and standby (or main and alternate). Each transmitter might be required to change power at night or to drive a different antenna array.

  • Page 39: Antenna System

    1-17 OPTIMOD-AM DIGITAL INTRODUCTION mission bandwidth from 5 kHz to 9.5 kHz will produce virtually no audible differ- ence on these radios.) Antenna System AM antenna systems, whether directional or non-directional, frequently exhibit in- adequate bandwidth or asymmetrical impedance. Often, a system will exhibit both problems simultaneously.

  • Page 40: About Transmission Levels And Metering

    1-18 INTRODUCTION ORBAN MODEL 9300 or over landlines. Sometimes, several encode/decode cycles will be cascaded before the material is finally presented to OPTIMOD-AM’s input. All such algorithms operate by increasing the quantization noise in discrete fre- quency bands. If not psychoacoustically masked by the program material, this noise may be perceived as distortion, “gurgling,”...

  • Page 41: Studio Line-Up Levels And Headroom

    1-19 OPTIMOD-AM DIGITAL INTRODUCTION ABSOLUTE PEAK Figure 1-1: Absolute Peak Level, VU and PPM Reading Studio Line-up Levels and Headroom The studio engineer is primarily concerned with calibrating the equipment to pro- vide the required input level for proper operation of each device, and so that all de- vices operate with the same input and output levels.

  • Page 42: Transmission Levels

    0 dB corresponds to the absolute maximum peak level that the 9300 can accept. If you are using the AES3 digital input, the maximum digi- tal word at the input corresponds to the 0 dB point on the 9300’s input meter.

  • Page 43: Monitoring

    1-21 OPTIMOD-AM DIGITAL INTRODUCTION clipper, and transmitter equalization. The negative safety clipper threshold is set to 105% modulation. The positive threshold is determined by the active transmission preset (see System Presets and Transmitter Equalization on page1-15), as are the set- tings of the highpass filter and transmitter equalizer.

  • Page 44: Eas Test

    EAS tones and data. Placing the 9300 in its BYPASS Test Mode can defeat the processing. The BYPASS GAIN control allows a fixed gain trim through the 9300. See “Test Modes,” on page 3-37 for more in- formation.

  • Page 45: Pc Control And Security Passcode

    GPI port programmed as E You may also choose to insert EAS broadcast tones and data directly into the transmitter, thus bypassing the 9300 for the duration of the EAS tones and data broadcast. PC Control and Security Passcode...

  • Page 46: Nrsc Standard Preemphasis And Low-Pass Filtering

    1-24 INTRODUCTION ORBAN MODEL 9300 for conventional receivers (which implies a relatively extreme preemphasis), the newer receivers might sound strident or exceptionally bright. If the choice favored the newer receivers (less preemphasis and probably less processing), the majority of receivers would be deprived of much high-end energy and would sound both qui- eter and duller.
  • Page 47 9300’s bell-shaped HF parametric EQ tuned to 3 kHz can reduce the effects of this ringing by reducing the boost at 5 kHz by comparison to the 9300’s HF shelving EQ, which maintains full boost all the way to 5 kHz. Additionally, you can use the LPF control to trade off brightness against ringing.

  • Page 48: Warranty, User Feedback

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

  • Page 49: Extended Warranty

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

  • Page 51: Section 2 Installation

    1ea. PC Remote Software and Operating Manual CD Save all packing materials! If you should ever have to ship the 9300 (e.g., for ser- vicing), it is best to ship it in the original carton with its packing materials be- cause both the carton and packing material have been carefully designed to pro- tect the unit.
  • Page 52 The 9300 requires one standard rack unit (1¾ inches / 4.45 cm). There should be a good ground connection between the rack and the 9300 chas- sis — check this with an ohmmeter to verify that the resistance is less than 0.5.
  • Page 53 AES3 Digital Input and Output ..............2-10 Grounding ....................2-10 5. Connect remote control interface. (optional) For a full listing of 9300’s extensive remote control provisions, refer to Remote Control Interface Programming on page 2-40. Optically isolated remote control connections are terminated in a type DB-25 male connector located on the rear panel.
  • Page 54 6. Connect tally outputs (optional) See the schematic on page 6-26. The 9300 supports two hardware tally outputs, which are NPN open-collector and operate with respect to pin 1 (common). Therefore, the voltage applied to the load (such as a relay or opto-isolator) must be positive. You can use the 12 VDC source on pin 25 to drive the high side of the load, taking into account the fact that the voltage on pin 25 is current limited by a 310 ...

  • Page 55: Olloff

    See step 9 on page 2-25 for instructions on programming the tally outputs. 7. Connect to a computer You can connect to a computer via the 9300’s serial connector or via an Ethernet network. You must have the 9300 PC Remote application installed on your com- puter before you upgrade your 9300’s firmware because 9300 PC Remote...
  • Page 56 INSTALLATION ORBAN MODEL 9300 receiver. It is a passive filter, requiring no power supply. It can be mounted to one rail of a standard rack. (See page 1-21 for more about studio monitoring.) A) Select rolloff response. The Monitor Rolloff Filter is supplied jumpered for NRSC WITH , unless otherwise noted.

  • Page 57: 9300 Rear Panel

    An RS-232 (PC Remote) Computer Interface, labeled S , is provided to ERIAL connect the 9300 to IBM PC-compatible computers, directly or via modem, for re- mote control, metering and software downloads. A Remote Interface Connector allows you to connect the 9300 to your existing transmitter remote control or other simple contact-closure control devices.

  • Page 58: Input And Output Connections

    Analog Inputs and Outputs use XLR-type connectors The analog inputs support left and right audio signals (to allow the 9300 to mix these to mono or to choose one of the two channels as a mono source). There are two analog outputs for two transmitters.

  • Page 59: Analog Audio Outputs

     In low RF fields (like a studio site), connect the cable shield at 9300 input only — it should not be connected at the source end. In high RF fields (like a transmitter site), also connect the shield to pin 1 of the male XLR-type connector at the 9300 input.

  • Page 60: Aes3 Digital Input And Output

    0dB. The reference level is adjustable using the DI R control. The 9300 is a “multirate” system; its internal sample rate is 32 kHz and multiples thereof (up to 128 kHz). The output is strictly band-limited to 16 kHz or less. Therefore, the output can pass through a 32 kHz uncom- pressed link with bit-for-bit transparency.

  • Page 61: Power Ground

    In high RF fields, the system is usually grounded through the equipment rack in which the 9300 is mounted. The rack should be connected to a solid earth ground by a wide copper strap — wire is ineffective at RF frequencies because of the wire’s self-inductance.
  • Page 62 They also allow you to move from one character to the next when you enter data into your 9300. These flash when such a menu is in use. Otherwise, they are inactive.

  • Page 63: Quick Setup

    Quick Setup Quick Setup guides you through 9300 setup for your primary transmitter. It is ap- propriate for users with modern transmitter facilities. Following this section, you can find more detailed information regarding setup beyond the Quick Setup screens. In most cases, you will not need this extra information.
  • Page 64 2-14 INSTALLATION ORBAN MODEL 9300 3. Press the front-panel Setup button. 4. Press the Quick Setup soft button when its label appears on the display. Quick Setup presents a guided sequence of screens into which you must insert in- formation about your particular requirements. In general, the screens are self- explanatory.
  • Page 65 2-15 OPTIMOD-AM DIGITAL INSTALLATION The setting of the lowpass filter controls your RF occupied bandwidth. It is very important to set it to meet the government standards in your country. OPTIMOD-AM can be readily programmed from its front panel or by re- mote control for any lowpass filter cutoff frequency from 4.5 kHz to 9.5 kHz (NRSC) in 0.5 kHz steps.
  • Page 66 AGC (Automatic Gain Control). If you are using a suitable automatic gain control at the studio, the AGC in the 9300 should be defeated. This is so that the two AGCs do not “fight” each other and so they do not simultaneously increase gain, resulting in increased noise.
  • Page 67 INSTALLATION 11. Set input operating levels. In this step, you set the operating levels of the 9300 to match the input levels it is receiving so the 9300’s AGC can operate in the range for which it was designed. There are separate settings for the analog and digital inputs. If you provide both...
  • Page 68 ECALL This step selects the processing to complement various program formats. After this step, you can always select a different processing preset, pro- gram the 9300 to automatically change presets on a time/date schedule,...
  • Page 69 (e.g., “KABC”). The name can be up to eight characters long. It is used to identify your 9300 to Orban’s 9300 PC Remote application and appears on the Main Screen when the 9300 is being con- trolled by the PC Remote application.

  • Page 70: Analog And Digital I/O Setup

    If you know the reference VU or PPM level that will be presented to the 9300, set the reference level to this level, but please verify it with the steps shown directly below.
  • Page 71 NPUT ALIB pending on which metering system you use). E) Calibrate using Tone. [Skip to step (F) if you are using Program material to calibrate the 9300 to your standard studio level.] a) Verify E AGC is set to N Refer to step 1 on page 2-20.
  • Page 72 System presets can be recalled by remote control (GPI or PC Remote) and/or at preset times by the 9300’s clock-based automation. TX1/DAY is the default system preset and many stations will always use it once they have set it up.
  • Page 73 (3dB down). They do not meet the EIA's AMAX standard (or even come close to it). Of course, if you wish to broadcast with strict NRSC preemphasis, you can easily adjust the 9300's HF Equal- izer to do this by setting the HF curve to NRSC.
  • Page 74 J.17 emphasis filter in the STL.) C) Set the DO R to 32, 44.1, 48, 88.2, or 96 kHz. The 9300’s fundamental sample rate is always 32 kHz. However, the in- ternal sample rate converter sets the rate at the 9300’s digital output.
  • Page 75 The largest available word length is 24 bits. The 9300 can truncate its output word length to 20, 18, 16 or 14 bits. The 9300 can add dither for input material that is insufficiently dithered for these lower word lengths (see the next step).
  • Page 76 10. Set output and configuration level. This is a preliminary level adjustment. Later in this installation procedure, you will set 9300 for the highest modulation level that your facility can produce. If your transmission facility proves to have overshoot, tilt, or ringing when you test it in step 11 on page 2-27, you will have to go through the Transmitter Equalizer adjustment procedure, which starts with step 12 on page 2-28.
  • Page 77 2-27 OPTIMOD-AM DIGITAL INSTALLATION E) Drive the 9300 with program material and observe the negative modulation level. Trim the AO 100% or DO 100% control associated with the output you are using to drive the transmitter under adjustment so that you observe 99% modulation on negative peaks.

  • Page 78: Overview Of Transmitter Equalization

    Procedure for LF Equalization You will set up one 9300 System Preset at a time. A) Connect the vertical input of the oscilloscope to the transmitter’s sampling loop (or other convenient source of RF).
  • Page 79 System Preset. You may have to move the sync con- nection between outputs if you need to set up System Presets for two transmitters. C) Turn on the 9300's built-in square wave generator: a) Navigate to S > T...
  • Page 80 K) Turn off the transmitter and allow it to cool down for several minutes. 13. Equalize transmitter high-frequency response. A) Set the 9300's square wave controls to produce a 1 kHz square wave at 30% modulation: a) Navigate to S >...
  • Page 81 2-31 OPTIMOD-AM DIGITAL INSTALLATION look directly with the scope at the unequalized output of the 9300 to get a feel for what this waveform looks like before it is applied to your transmitter. B) Make sure that the oscilloscope is synchronized to the square wave.
  • Page 82 2-32 INSTALLATION ORBAN MODEL 9300 ringing to below the flattop modulation level. Reducing the setting of the HF F control until the ringing is again at the flattop modulation level will unbalance the ringing at the leading and trailing edge of the square wave, and necessitate further adjustment of the HF DELAY con- trol.
  • Page 83 (see page 1-13). In some cases, a compromise be- tween full tilt correction and these other problems may have to be achieved by careful experimentation with program material. The 9300's LF GAIN control is designed to permit such a compromise.

  • Page 84: Automation Using The 9300'S Internal Clock

    Orban accepts no responsibility for transmitter failures introduced by such re-adjustments, or by the high average power, bass and treble pre- emphasis, or by any other characteristics of OPTIMOD-AM audio process- ing.
  • Page 85 2-35 OPTIMOD-AM DIGITAL INSTALLATION c) Wait until the entered time agrees with the correct time. Then press the button to set the clock. NTER B) Press the S button. a) Set today’s date, using the days, month, and year buttons. b) Press the E button.
  • Page 86 (in 24-hour format — e.g., 18:00:00 for 6:00 PM) when the automation event is to occur. Set the desired values with the knob. Automation events have a “start” time but no “stop” time. The 9300 will indefinitely remain in the state specified by an existing automation event until its state is changed by another automation event or by another ac- tion (such as a user’s interacting with the front panel or PC Remote soft-...

  • Page 87: Security And Passcode Programming

    [Skip this step if you do not plan to use PC Remote software or do not plan to lock out the front panel locally.] The 9300 has several levels of security to prevent unauthorized people from chang- ing its programming or operating state. Security controls access to the front panel and to anyone connecting to the 9300 through a direct serial connection, dial-up networking (through modems), or its Ethernet port.

  • Page 88: To Create A Passcode

    2-38 INSTALLATION ORBAN MODEL 9300 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 89: To Lock The Front Panel Immediately

    Autolock function. C) Press the E button to leave the Security menu. SCAPE To Unlock the Front Panel: A) On the 9300 front panel, operate any button or the knob. The E screen will appear. NTER ASSCODE B) Enter a passcode using the four soft buttons.

  • Page 90: Dial-Up Networking And The Passcode

    To allow the connection to occur, enter any passcode that you set at the 9300’s front panel. Once your PC is connected to the 9300, you will be able to access the 9300 functionality corresponding to the security level of your passcode.
  • Page 91 Reset Clock To Hour: resets the internal clock to the nearest hour. For example, 3:03:10 would be reset to 3:00:00, while 3:53:40 would be reset to 4:00:00. Use this function to periodically re-sync the 9300’s internal clock to your station’s master clock.

  • Page 92: Networking And Remote Control

    ORBAN MODEL 9300 Networking and Remote Control [Skip this step if you do not wish to connect to your 9300 remotely, either for downloading software upgrades or for PC Remote Control.] The 9300 has a built-in Ethernet connector that can be used with 10 Mbps or 100 Mbps networks using the TCP/IP protocol.
  • Page 93 You will need two modems and two available phone lines, one of each for your PC and your 9300. Orban Customer Service supports only the 3Com / U.S. Robot- ics® 56kbps fax modem EXT on the 9300 side of your connection, although other 56kbps modems will usually work OK.

  • Page 94: Installing 9300 Pc Remote Control Software

    Setup9300_x.x.x.x.exe, where “x.x.x.x” represents the software version you are installing. (For example, for version 1.0 software, this would be 1.0.0.0.) The PC Remote software is supplied on a CD shipped with your 9300. You can also download it from ftp.orban.com/9300.

  • Page 95: Check Hardware Requirements

    Ethernet connector, it uses the ppp and the TCP/IP protocols to communicate with the 9300. Check Hardware Requirements To connect your PC to your 9300, regardless of the method you choose, you will need the following: ...

  • Page 96: Running The Orban Installer Program

    Internet through its Ethernet port, it already has the correct (TCP/IP) network- ing set up to communicate with the 9300. In most cases, all you need is your 9300’s IP address, Port, and Gateway number, as set in step 1 on page 2-42. You will enter these when you create a “connection”...

  • Page 97: Conclusion

    If you wish to connect to your 9300 through your LAN or VPN (through a WAN or the Internet), consult your network administrator. Note that to cross subnets, you must specify a gateway. If the PC and 9300 are on the same subnet, then it is unnec- essary to specify a gateway.
  • Page 98 2-48 INSTALLATION ORBAN MODEL 9300 Ask your network administrator which protocols are available. SNTP is slightly more accurate. B) Using S , choose how often your Optimod will automatically update ERIOD its internal clock to the timeserver you selected. The choices are O...
  • Page 99 2-49 OPTIMOD-AM DIGITAL INSTALLATION You can specify the timeserver either from your Optimod’s front panel or from its PC Remote software. From the front panel, you can only enter the time- server’s IP address (for example, 192.43.244.18). If you specify the timeserver from PC Remote, you can specify either its named address (for example, time.nist.gov) or its IP address.
  • Page 100 Optimod’s front panel as an IP address (step 4 on page 2-49).  If the timeserver you selected in Windows is a named address (not a nu- merical IP address), the 9300 will resolve it correctly but the IP address that appears in your Optimod’s display will be 0.0.0.0.

  • Page 101: Appendix: Setting Up Serial Communications

    Appendix: Setting Up Serial Communications This appendix provides instructions for setting up both direct serial and modem connections from your 9300 to your PC. You must do this when you define a new connection from the 9300 PC Remote application. The appendix provides procedures for both the Windows 2000 and Windows XP operating systems.
  • Page 102 2-52 INSTALLATION ORBAN MODEL 9300 Cannot Access the Internet After Making a Direct or Modem Connection of the 9300 on page 5-7. 1. Add and configure a Direct Connection for Windows 2000: A) Create a New Windows 2000 Direct Connection:...
  • Page 103 Your wizard may not display this field if your computer is set up for a single user only. l) Click “Next.” m)Enter a name for your Connection such as: “Connection to 9300.” n) Click “Finish.”...
  • Page 104 2-54 INSTALLATION ORBAN MODEL 9300 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 2-53. This will usually “Communications cable between two computers (COM1).”...
  • Page 105 2-55 OPTIMOD-AM 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 106: Connecting Using Windows Xp Direct Serial Connection

    ORBAN MODEL 9300 2. Launch an existing Windows 2000 Direct connection. Once you have set up a “connection” specifying Direct Connect in the 9300 PC Remote application (see To set up a new connection on page 3-38), choosing this connection from 9300 PC Remote automatically opens a Windows Direct Connec- tion to your 9300.
  • Page 107 OPTIMOD-AM DIGITAL INSTALLATION c) Give your 9300 a name (e.g., “KABC”) by entering this name in the “9300 Alias” field. d) If you wish to have 9300 PC Remote remember password this Optimod, enter the password in the “Password“ field.
  • Page 108 2-58 INSTALLATION ORBAN MODEL 9300 k) Type in a name for your Connection such “Connection to 9300.” l) Click “Finish.” m)Click “Yes.” B) Edit your Direct Connection properties: a) Click “Settings.”...
  • Page 109 2-59 OPTIMOD-AM DIGITAL INSTALLATION b) Click the “General” tab. c) Select the device you set up in step (i) on page 2-57. This will usually be “Communications cable between two computers (COM1).” d) Click “Configure.” e) Set the “Maximum Speed (bps)” to 115200.
  • Page 110 “OK.” 2. Launch an existing Windows XP Direct connection. Once you have set up a “connection” specifying Direct Connect in the 9300 PC Remote application (see To set up a new connection on page 3-38), choosing this connection from 9300 PC Remote automatically opens a Windows Direct Connec- tion to your 9300.

  • Page 111: Preparing For Communication Through Modems

    EXT on the 9300 side (although other 56kbps modems will often work OK). Connect the modem to the 9300’s serial port with a standard (not null) modem ca- ble. You can use either an internal or an external modem with your PC.
  • Page 112 Click “Start > Settings > Network and Dial-up Connections > Make New Connection.” b) Once the New Connection Wizard has opened, Click “Next.” C) Create a New Windows 2000 Direct Connection: a) Launch 9300 PC Remote. b) Choose “Connect > New 9300”...
  • Page 113 OPTIMOD-AM DIGITAL INSTALLATION c) Give your 9300 a name (e.g., “KABC”) by entering this name in the “9300 Alias” field. d) If you wish to have 9300 PC Remote remember password this Optimod, enter the password in the “Password“ field.
  • Page 114 2-64 INSTALLATION ORBAN MODEL 9300 k) Select either “For users” “Only myself.” correct setting depends on how your network and security are configured. This screen may not appear in computers set up for single users. l) Click the “Next” button.
  • Page 115 2-65 OPTIMOD-AM DIGITAL INSTALLATION D) Edit your new Direct Connection prop- erties: a) Click “Settings.” b) Click the “General” tab. c) In the “Connect using” field, select the modem you will be using to make the connection on the PC side. d) Click “Configure.”...
  • Page 116 2-66 INSTALLATION ORBAN MODEL 9300 e) Set “Maximum speed (bps)” to “115200.” f) Check “Enable hard- ware flow control.” g) Check “Enable mo- dem error control.” h) Check “Enable dem compression.” i) Make sure that all other boxes are not checked.

  • Page 117: Connecting Using Windows Xp Modem Connection

    INSTALLATION 2. Launch a Windows 2000 Modem connection. Once you have set up a “connection” specifying a modem connection in the 9300 PC Remote application (see To set up a new connection on page 3-38), choosing this connection from 9300 PC Remote automatically opens a Windows modem connection to your 9300.
  • Page 118 2-68 INSTALLATION ORBAN MODEL 9300 Not all PCs have a COM2. IMPORTANT: The COM port you choose at this point must match the COM port to which you connected your modem. g) From the tabs at the top, choose “Port Settings” and configure the settings to match your PC modem.
  • Page 119 Launch 9300 PC Remote. b) Choose “Connect > New 9300.” The Connection Properties win- dow opens. c) Give your 9300 a name (e.g., “KABC”) by entering this name in the “9300 Alias” field. d) If you wish to have 9300 PC Remote...
  • Page 120 2-70 INSTALLATION ORBAN MODEL 9300 j) Enter phone number of the modem connected to the 9300 you are setting up. k) Click “Next.” l) Type in a name for your Connection such “Connection 9300 – Modem” m)Click “Finish” button. n) Click “Yes.”...
  • Page 121 2-71 OPTIMOD-AM DIGITAL INSTALLATION D) Edit your new Direct Connection proper- ties: a) Click “Settings.” b) Click the “General” tab. c) Select the modem you will be using to make the connection on the PC side. d) Click “Configure.”...
  • Page 122 “OK.” 2. Launch an existing Windows XP modem connection. Once you have set up a “connection” specifying a modem connection in the 9300 PC Remote application (see To set up a new connection on page 3-38), choosing this connection from 9300 PC Remote automatically opens a Windows modem...

  • Page 123: Updating Your 9300'S Software

    The PC Remote installer will in- stall this file on your computer’s hard drive. 3. If you have not previously done so, start 9300 PC Remote and set up a “connection” to the 9300 you will be updating.
  • Page 124 See To initiate communication on page 3-39. 9300 PC Remote will automatically detect that the 9300 software version on your 9300 is not the same as the version of 9300 PC Remote. PC Re- mote will then offer to update your 9300 automatically.

  • Page 125: Section 3 Operation

    Screen Contrast button adjusts the optimum viewing angle of the screen dis- play.  Four Soft buttons provide access to all 9300 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 126: Some Audio Processing Concepts

    ORBAN MODEL 9300  Input meters show the peak input level applied to the 9300’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 9300’s analog to digital converter, which is a very common cause of audible distortion.

  • Page 127: Loudness And Density

    NRSC, boosting at 18dB/octave with 2 kHz up about 3 dB. Without very artful processing, this preemphasis will radically increase the level of the peaks and force you to decrease the average level proportionally. Orban's high frequency limiting and distortion-cancelling clipping systems greatly ease this trade-off, but cannot eliminate it.

  • Page 128: Optimod-Am Processing

    HF boost, you will have to turn down the L control to avoid audible distortion.  A five-band compressor with Orban's exclusive multiband distortion-cancelling clipper. This system embeds the clipper within the multiband crossover to permit the crossover to filter out clipping distortion products that would otherwise be audible.
  • Page 129 This is the default preset upon initial power-up of the 9300. You may continue using this preset or choose another preset as you deem appropriate.

  • Page 130: Shortwave/Hf Processing

    This fact considerably simplifies the ad- justment procedure. We have tuned the 9300’s “HF” presets with these compromises in mind. There is a general-purpose preset and a preset tuned to optimize voice intelligibility. We be- lieve that further subtleties are inappropriate for the medium.

  • Page 131: Monitor Rolloff Filter

    OPTIMOD-AM DIGITAL OPERATION Quality in the Broadcast Facility (an Orban publication downloadable from ftp.orban.com) for a discussion of how to improve source quality. A high-quality monitor system is essential. To modify your air sound effectively, you must be able to hear the results of your adjustments. Maintaining Audio Quality in the Broadcast Facility also contains a detailed discussion of how to efficiently create an accurate monitoring environment.

  • Page 132: Modulation Monitors

    OPERATION ORBAN MODEL 9300 steep rolloff above that frequency. The steepness of the rolloff eliminates the possibility of improving the audio through preemphasis. In our opinion, these radios must be written off as producing hopelessly bad sound. Very few people would enjoy listening to music on these radios ...

  • Page 133: Judging Loudness

    OPTIMOD-AM to control peak modulation accurately. Customizing the 9300’s Sound The subjective setup controls on the 9300 give you the flexibility to customize your station’s sound. Nevertheless, as with any audio processing system, proper adjust- ment of these controls consists of balancing the trade-offs between loudness, den- sity, and audible distortion.

  • Page 134: Basic Control

    We believe that most 9300 users will never need to go beyond the Basic level of con- trol. Orban’s audio processing experts have optimized the combinations of subjec- tive setup control settings produced by this control by drawing on years of experi- ence designing audio processing and hundred of hours of listening tests.

  • Page 135: Full Control

    Advanced Control is available to you from the 9300 PC Remote software only (not from the 9300’s front panel). At this level, you can customize or modify any sub- jective setup control setting to create a sound exactly to your taste. You can then save the settings in a User Preset and recall it whenever you wish.

  • Page 136: Gain Reduction Metering

    To Create or Save a User Preset Once you have edited a preset, you can save it as a user preset. The 9300 can store an indefinite number of user presets, limited only by available memory. The 9300 will offer to save any edited, unsaved preset when the main screen is visible.

  • Page 137: Factory Programming Presets

     If the name you have selected duplicates the name of an existing user pre- set, the 9300 warns you that you are about to overwrite that preset. An- swer Y if you wish to overwrite the preset and N otherwise.

  • Page 138: Description Of The Factory Presets

    Basic Control and make small changes to the Bass, Mid EQ, and HF EQ controls. Unlike some earlier Orban’s processors, the 9300 lets you make changes in EQ, AGC, and stereo enhancement without losing the ability to use L settings.
  • Page 139 3-15 OPTIMOD-AM DIGITAL OPERATION NEWS is based on the Fast multiband release time. Because of this, the unit adapts quickly to different program material, providing excellent source-to-source consistency. This “automatic equalization” action of the multiband compressor has been adjusted to produce less bass than in the G presets, and the ENERAL URPOSE...
  • Page 140 The GREGG preset is designed for general-purpose voice/music programming, particularly on music-oriented formats. Although not the loudest 9300 preset, it has a smooth, well-balanced quality that keeps audiences listening. We tuned it to sound very similar to the legendary Gregg Laboratories 2540 AM processor (designed by Orban’s Vice President of New Product Development, Greg Ogonowski, in the 1980s),...

  • Page 141: Equalizer Controls

    This is particularly true with general-purpose AM programming. Low Frequency Parametric Equalizer is a specially designed parametric equalizer whose boost and cut curves closely emulate those of a classic Orban analog para- metric equalizer with conventional bell-shaped curves (within 0.15 dB worst-case).
  • Page 142 In HF broadcast, perhaps the most difficult of all processing tradeoffs is choosing bass equalization. This is why the 9300’s a bass equalizer can cut as well as boost. When propagation conditions are good and the signal strength is high, a certain amount of bass boost (perhaps +3dB) provides the most pleasing sound.
  • Page 143 100% modulation to prevent disturbing intermodulation between bass and higher- frequency program material. By comparison to the 9300’s preset for MW broadcast- ing , in the HF presets the threshold of limiting of the 150Hz band has been substan- tially lowered so that more gain reduction (and thus, less bass) is produced.
  • Page 144 HF Gain (“High Frequency Shelf Gain”) determines the amount of high frequency boost provided by the 9300’s receiver equalizer. HF Curve (“High Frequency Shelf Curve”) determines the shape of the high fre- quency shelving curves curve produced by the 9300’s receiver equalizer. (See Figure 3-1.)
  • Page 145 3-21 OPTIMOD-AM DIGITAL OPERATION The high-frequency receiver equalizer is designed to compensate for the high fre- quency rolloff in average AM radios. The typical AM radio is down 3dB at 2kHz and rolls off at least 18dB/octave after that. The HF equalizer provides an 18dB/octave shelving preemphasis that can substantially improve the brightness and intelligibility of sound through narrowband radios that do not have an abrupt rolloff.
  • Page 146 NRSC radios, use HF C = 10 and HF G = 10dB. HF URVE = 10 corresponds to the RED preemphasis module in Orban's analog URVE 9100-series OPTIMOD-AM processors. Note that the added brightness caused by using an HF C...

  • Page 147: Agc Controls

    Several of the AGC controls are common to the Full Control and Advanced Control screens, with additional AGC controls available in the Advance Modify screen, as noted in the following table. (Note that “advanced” controls are accessible only from 9300 PC Remote software.)
  • Page 148 (It gates whenever the input level to the structure is below the threshold of gating.) The total amount of gain reduction in the 9300 processing is the sum of the gain re- duction 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 149 AGC or multiband compressor to gate, effectively freezing gain to prevent noise breathing. There are two independent gating circuits in the 9300. The first affects the AGC and the second affects the multiband compressor. Each gate has its own threshold con- trol.

  • Page 150: Advanced Agc Controls

    ASTER Advanced AGC Controls The following AGC controls are available only in the 9300 PC Remote software. AGC Window Size determines the size of the floating “slow zone” window in the master band of the AGC. (The Bass band is not windowed.)
  • Page 151 3-27 OPTIMOD-AM DIGITAL OPERATION determine the AGC’s response time. However, if the change in input level is smaller than the window size, the AGC W control determines the attack and INDOW ELEASE release times. This is usually much slower than the normal AGC time constants. This prevents the AGC from building up density in material whose level is already well controlled.

  • Page 152: Clipper Controls

    Some 9300 users feel that the band 1+2 clipper unnecessarily reduces bass punch at its factory settings. As you raise the threshold of the clipper, you will get more bass but also more distortion and pumping.
  • Page 153 HF Clipping determines the amount of protection provided by the 9300’s Band 5 multiband clipper. “0” is the preferred setting. Higher values will increase both brightness and high frequency distortion.

  • Page 154: Multiband Dynamics Processing

    3-30 OPERATION ORBAN MODEL 9300 Multiband Dynamics Processing Multiband Controls Full Name Advanced Name Range MB DRIVE Multiband Drive 0 ... 25 MB GATE Multiband Gate Threshold Off, –44 ... –15 dB DWNEXP TH Downward Expander Off, –6.0 … 12.0 dB...
  • Page 155 The SLOW and SLOW2 settings produce an unprocessed sound with a nice sense of dynamic range. With these settings, the 9300 processing pro- vides gentle automatic equalization to keep the frequency balance con- sistent from record to record (especially those recorded in different eras).
  • Page 156 AGC or multiband compressor to gate, effectively freezing gain to prevent noise breathing. There are two gating circuits in the 9300. The first affects the AGC and the second affects the multiband compressor. Each has its own threshold control. The 9300’s in-...
  • Page 157 3-33 OPTIMOD-AM DIGITAL OPERATION put drives the AGC gate detector; the output of the 9300’s AGC drives the MB gate detector. The multiband compressor gate causes the gain reduction in bands 2 and 3 of the applicable multiband compressor to move quickly to the average gain reduction oc- curring in those bands when the gate first turns on.

  • Page 158: Advanced Multiband Controls

    Advanced Multiband Controls The following Advanced Multiband controls are available only from 9300 PC Remote software. B1-B5 Out (“Band 1-5 Output Mix”) controls determine the relative balance of the bands in the multiband compressor.
  • Page 159 We have carefully tuned the thresholds of the individual compressors to pre- vent audible distortion with almost any program material. Large changes in the fre- quency balance of the compressor outputs will change this tuning, leaving the 9300 more vulnerable to unexpected audible distortion with certain program material.
  • Page 160 3-36 OPERATION ORBAN MODEL 9300 control. In our example, the release time in band 3 will always be ULTIBAND ELEASE two “click stops” slower than the setting of the M control. ULTIBAND ELEASE If your setting of a given D...

  • Page 161: Test Modes

    9300 PC Remote control software allows you to access any front-panel 9300 control. In addition, you can access all of the Advanced Control controls that are unavailable from the 9300’s front panel. The software also gives you the ability to backup user...

  • Page 162: To Set Up A New Connection

    9300PC.exe on your desktop and in your Start Menu under Orban\Optimod 9300. 9300 PC Remote can control only one 9300 at a time, but it can readily switch be- tween several 9300s. 9300 PC Remote has a built-in “address book” that allows it to select and connect to: ...

  • Page 163: To Initiate Communication

    OPERATION port, and gateway data. Note that these values must agree with the values that you set in your 9300 (see step 1 on page 2-42). See also Setting Up Ethernet, LAN, and VPN Connections on page 2-46. If you are communicating via a direct serial cable connection or a modem connection, follow the appropriate procedure described in Appendix: Setting up Serial Communications, starting on page 2-51.

  • Page 164: To Recall A Preset

    User) is automatically synchronized to the contents of its associated 9300’s memory each time 9300 PC Remote connects to that 9300. The 9300’s memory is the “master.” This means that if you delete a user pre- set from the 9300’s memory (whether locally via its front panel or via 9300 PC Remote), 9300 PC Remote will automatically erase this preset from this folder on your computer.

  • Page 165: To Restore Archived Presets, System Files, And Automation Files

    If you attempt to back up a preset with the same name as a preset exist- ing in the Backup folder, but with a different date, 9300 PC Remote will warn you and will allow you to overwrite the preset in the Backup folder or to cancel the operation.
  • Page 166 PC dialog box ESTORE B) Click the R button. ESTORE This User Preset will be downloaded to the 9300 to which 9300 PC Re- mote is currently connected. If the User Preset is encrypted, PC Remote will request its password.

  • Page 167: To Modify Input /Output And System Setup

    When you A 9300 using Optimod 9300 PC Remote, your 9300 is automati- DD A cally given a 9300 Alias name to differentiate it from other 9300s. You can change the name anytime in the 9300 Properties window inside 9300 PC Remote.

  • Page 168: Multiple Installations Of Optimod 9300 Pc Remote

    OPERATION ORBAN MODEL 9300 When you add a new 9300 or change the name of an existing 9300 Alias, an Alias folder is created in the same location as the executable for Optimod 9300 PC Re- mote (usually \Program Files\Orban\Optimod 9300). The folder has the same name as the Alias name.

  • Page 169: To Share An Archived User Preset Between 9300S

    OPTIMOD-AM DIGITAL OPERATION from an older version of 9300 PC Remote, it will refuse to connect and will emit an error message regarding incompatible versions. If you decide to install the new software to a different location on your PC, new Ali- ases created using the new software will not be located in the same place as the old Aliases.

  • Page 171: Section 4 Maintenance

    9300 as you have set it up, and be sensitive to changes or deterioration. How- ever, if problems arise, please do not jump to the conclusion that the 9300 is at fault. The troubleshooting information in Section 5 will help you determine if the problem is with OPTIMOD-AM or is somewhere else in the station's equip- ment.

  • Page 172: Subassembly Removal And Replacement

    MAINTENANCE ORBAN MODEL 9300 Subassembly Removal and Replacement See page 6-21 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 173 EMI. If the power supply fails, please contact Orban Customer Service (custserv@orban.com) to obtain an exact replacement. A) Verify that the 6300 is disconnected from the AC line.
  • Page 174 MAINTENANCE ORBAN MODEL 9300 E) Unplug the cable connecting the output of the power supply to the I/O+DSP board. F) Using a hex nutdriver, remove the threaded standoff that supports the power supply’s insulating cover. G) Remove the three Phillips screws holding the power supply to the main chas- sis.

  • Page 175: Field Audit Of Performance

    OPTIMOD-AM DIGITAL MAINTENANCE D) Place the two side brackets over the captive screws located on each side of the front panel. Be sure that the large side of each bracket is oriented toward the rack-screw cutouts in the panel. E) Place the metal shield over the captive screws on each side of the front panel. Align the shield so that its cutouts are aligned with the cables attached to the circuit board assembly.
  • Page 176 THD produced by a properly operating 9300 at most frequencies. However, in an emergency it is usually possible to detect many of the more severe faults that could develop in the 9300 circuitry even in high-RF envi- ronments.
  • Page 177 SQUARE FREQ ................. 400.0 2. Adjust Analog Output Level Trim. A) Verify 9300 software controls are set to their default settings. [Refer to step (1.A) on page 4-6.] B) Feed the 9300 output with the built-in 400 Hz test tone: a) Navigate to S >...
  • Page 178 H) Using VR201, repeat steps (C) through (G) for the Right Analog Output. 3. Check frequency response of Analog I/O. A) Verify 9300 software controls are set to their default settings. [Refer to step (1.A) on page 4-6.] B) Be sure you are still in B mode [see step (2.F)].
  • Page 179 H) Disconnect the oscillator and THD analyzer from the 9300. 5. Test Digital Sample Rate Converter (Receiver). A) Verify 9300 software controls are set to their default settings. (Refer to page 4-6.) B) Be sure you are still in B mode [see step (2.F)].
  • Page 180 PC through a null modem cable. See Networking and Remote Con- trol starting on page 2-42 (in particular, step 4 on page 2-44). C) You have made all of the previous tests with the 9300 is B mode. In most...

  • Page 181: Section 5 Troubleshooting

    Section 5 Troubleshooting Problems and Potential Solutions Always verify that the problem is not the source material being fed to the 9300, or in other parts of the system. RFI, Hum, Clicks, or Buzzes A grounding problem is likely. Review the information on grounding on page 2-10.

  • Page 182: Excessively Low Positive Peak Modulation

    9300’s noise level. If you are using an external processor ahead of the 9300, be sure it is not clipping or otherwise causing problems. The 9300's highly processed output puts great demands on transmitter performance...

  • Page 183: Audible Noise On Air

    9300 to digitize the input. (This ratio is better than 108 dB.) It is important to drive the 9300 with professional levels (more than 0 dBu reference level) to achieve adequately low noise.

  • Page 184: Dull Sound

    FCC and ITU-R. Because DSP software does the processing, there is very little that can go wrong with the 9300 that will increase its output bandwidth without causing an all-out failure of the unit.

  • Page 185: System Will Not Pass Line-Up Tones At 100% Modulation

    The 9300 can generate test tones itself. The 9300 can also be put into Bypass mode (locally or by remote control) to enable it to pass externally generated tones at any desired level.

  • Page 186: Security Passcode Lost (When Unit Is Locked Out)

    Connection Issues between the 9300 and a PC, Modem, or Net- work  Presets: The more user presets you make, the more slowly the 9300 will respond to front-panel commands. Delete any user presets you do not need.  Quick Setup: On the Station ID screen (Quick Setup 9): Use Escape in place of Cancel.

  • Page 187: You Cannot Access The Internet After Making A Direct Or Modem Connection To The 9300

    A) Ensure that the modem cables and phone lines are connected properly. B) Check that you have entered the correct phone number for connection. C) Check that you have entered the passcode correctly on the 9300 and the pass- code has been entered correctly on your PC.

  • Page 188: Os-Specific Troubleshooting Advice

    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 9300 unit when you establish a direct or modem connection. OS-Specific Troubleshooting Advice Troubleshooting Windows 2000 Direct Connect: If you are having trouble establishing a connection, check your New Connection’s...

  • Page 189: Troubleshooting Windows 2000 Modem Connect

    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” is actually the 9300 and it is not out of order; you just need to set the Maximum Speed (Bits per second) to 115200. If you already set this speed when you configured your PC ports, you shouldn’t have this problem.

  • Page 190: Troubleshooting Windows Xp Direct Connect

    A) Click “Start > Programs > Accessories > Communications > Network Connec- tions” to bring up the Network Connections screen. B) In the “Network Connections” window, right-click “Optimod 9300 - Direct” and choose “Properties.” C) The “Properties” window opens for “Optimod 9300 - Direct.”...

  • Page 191: Troubleshooting Windows Xp Modem Connect

    L) Click “OK” to dismiss the “Advanced TCP/IP Settings” window. M) On the “Properties” window for “Optimod 9300 – Modem” click the “Ad- vanced” tab. N) Click “OK” to dismiss the window whose name is your new connection.

  • Page 192: Troubleshooting Ic Opamps

    IC is sitting at –14 volts, the IC is almost certainly bad. The same holds true if the above polarities are reversed. Because the characteristics of the 9300's circuitry are essentially independent of IC opamp characteristics, an opamp can usually be replaced without recalibration.

  • Page 193: Technical Support

    If you require technical support, contact Orban customer service. Be prepared to de- scribe the problem accurately. Know the serial number of your 9300  this is printed on the rear panel of the unit. Current contact information is found at http://www.orban.com/contact/.
  • Page 194 5-14 TROUBLESHOOTING ORBAN MODEL 9300 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 195: Section 6 Technical Data

    Polarity: The processing employs phase rotation to maximize loudness. Therefore, the po- larity is frequency-dependent. Processing Sample Rate: The 9300 is a “multirate” system, using internal rates from 32 kHz to 128 kHz as appropriate for the processing being performed. Audio clippers oper- ate at 128 kHz.

  • Page 196: Installation

    3 electronically balanced, floating and symmetrical. A/D Conversion: 24 bit 128x oversampled delta sigma converter with linear-phase anti- aliasing filter. Converter outputs 64 kHz sample rate, which the 9300 then decimates to 32 kHz in DSP using an ultra-high-quality image-free synchronous sample rate con- verter.
  • Page 197 OPTIMOD-AM DIGITAL TECHNICAL DATA Digital Audio Input Configuration: Stereo per AES3 standard, 24 bit resolution, software processing selection of 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 198: Circuit Description

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

  • Page 199: Control Circuits

    DSP code download has finished. If you hear a short audio mute on air, this may be because the 9300 has rebooted for some reason. (Of course, it could also be caused by the 9300’s audio feed’s being interrupted.) Be prepared to convey this fact to Orban customer service if you call for technical assistance.
  • Page 200 Current must flow consistently for 50msec for the signal to be inter- preted as valid. Generally, the 9300 will respond to the most recent control op- eration, regardless of whether it came from the front panel, remote interface, or RS-232.

  • Page 201: Input Circuits

    The digitally controlled gain circuitry was included on the circuit board for possible use in future products. In the 9300, its gain is preset so that the A/D will clip at +27 dBu with respect to the 9300’s analog inputs.

  • Page 202: Output Circuits

    The A/D oversamples the audio, applies noise shaping, and emits a bitstream at 64 kHz sample rate. The 9300 decimates this to 32 kHz using a high-quality syn- chronous sample rate converter realized in DSP. The 9300’s audio processing op- erates at a 32 kHz sample rate and multiples thereof.
  • Page 203 9300 DSP output sample rate to any of the standard 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz rates for the 9300’s Digital Out 1 and Digital Out 2 respec- tively. The sample rate converters drive digital audio interface transmitters IC403,...

  • Page 204: Dsp Circuit

    600 MIPS, provide the necessary signal processing. A sampling rate of 48 kHz is used. System initialization normally occurs when power is first applied to the 9300 and can occur abnormally if the 9300’s watchdog timer forces the SC520 to reboot. Upon ini- tialization, the SC520 CPU downloads the DSP executable code stored in the flash memory.

  • Page 205: Abbreviations

    6-11 OPTIMOD-AM DIGITAL TECHNICAL DATA Abbreviations Some of the abbreviations used in this manual may not be familiar to all readers: A/D (or A to D) analog-to-digital converter Audio Engineering Society automatic gain control analog input analog output balanced (refers to an audio connection with two active conductors and one shield sur- rounding them).
  • Page 206 6-12 TECHNICAL DATA ORBAN MODEL 9300 inductor/capacitor liquid crystal display light-emitting diode low-frequency low-pass level midrange / high-frequency midrange / low-frequency modulation N&D noise and distortion N / C no connection OSHOOT overshoot IBM-compatible personal computer pulse code modulation peak program meter...

  • Page 207: Parts List

    The list below includes substantially all of the parts used in the 9300 (including surface-mount devices), and inclusion of a part in this list does not imply that the part is field-replaceable.
  • Page 208 6-14 TECHNICAL DATA ORBAN MODEL 9300 Control Board PART # DESCRIPTION COMPONENT IDENTIFIER R8, R26, R27, R28, R29, R30, R32 20130.475.01 RESISTOR, 4.75K, 0805 (R36, NO, STUFF), R205, R207, R209, R211, R213, R215, R217 20130.562.01 RESISTOR, 1/8W, 1%, 5.62K, 0805 20131.100.01...

  • Page 209: Combined Input/Output And Dsp (I/O+Dsp) Board

    6-15 OPTIMOD-AM DIGITAL TECHNICAL DATA Control Board PART # DESCRIPTION COMPONENT IDENTIFIER 24968.000.01 IC, MAX208ECNG 24972.520.01 IC MICROPROCESSOR ELANSC520 BGA388 24979.000.01 IC, BAT54C-7 CR11, CR12 24983.000.01 IC, 7064STC100-10 25008.000.01 IC, PS2506-4 * U17, U19 27017.009.01 CONNECTOR, RT AGL, PC MNT, 9P 27017.025.01 CONNECTOR, RT AGL, PC MNT, 25P 27147.124.01...
  • Page 210 6-16 TECHNICAL DATA ORBAN MODEL 9300 I/O+DSP BOARD 20128.022.01 RESISTOR 22 Ω 1% 0805 R806, R807, R808, R809, R810, R811, R813, R820 20128.075.01 RESISTOR, 75Ω, 1%, 0805 R158, R303 20129.100.01 RESISTOR, 100 Ω, 0805 R257, R258, R259, R260 20129.110.01 RESISTOR 110Ω 0805 1% R249, R250, R300, R400 20129.150.01...
  • Page 211 6-17 OPTIMOD-AM DIGITAL TECHNICAL DATA I/O+DSP BOARD 21140.000.01 CAPACITOR, NPO, 470PF, 1%, 0805 C217, C218, C219, C220 21141.000.01 CAPACITOR, NPO, 1000PF, 1%, 0805 C236, C237, C238, C239, C305 21142.000.01 CAPACITOR, NPO, 100PF, 1%, 0805 C989 21143.000.01 CAPACITOR, NPO, 1500PF, 1%, 0805 C221, C222, C240, C241, C242, C243, C987, C990, C993 21144.000.01...

  • Page 212: Display Board (Front)

    6-18 TECHNICAL DATA ORBAN MODEL 9300 I/O+DSP BOARD 2 X 5 27426.003.01 CONNECTOR, HEADER, 3 PIN, SINGLE J801 27451.009.01 HEADER STR DBLRW 60P PCMT J701 27630.001.01 JUMPER, PC MNT, TEST POINT TP900, TP903, (TP901, TP902, TP904, NO, STUFF) 28083.000.01 OSC-XTAL CLOCK-27MHZ-3 VO IC805 29015.000.01...

  • Page 213: Display Board (Back)

    If you intend to replace parts, please read page 6-13. Please note that because sur- face-mount parts are used extensively in the 9300, few parts are field-replaceable. Servicing ordinarily occurs by swapping circuit board assemblies. However, many vulnerable parts connected to the outside world are socketed and can be readily re- placed in the field.
  • Page 214 6-20 TECHNICAL DATA ORBAN MODEL 9300 Function Description Drawing Page Circuit Board Locator and Basic In- Top view Chassis 6-21 terconnections (not to scale) Control board Control microprocessor. Services Parts Locator 6-22 front panel, serial port, Ethernet, Drawing and DSP+I/O board.
  • Page 215 6-21 OPTIMOD-AM 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 216 6-22 TECHNICAL DATA ORBAN MODEL 9300 CONTROL BOARD PARTS LOCATOR...
  • Page 217 6-23 OPTIMOD-AM DIGITAL TECHNICAL DATA C44 10UF +3.3V 10.0K 0.1UF SYSTEM_RESET-N (SHT 5) U5 MIC8115TU +3.3V U1B SC520 MR-n PIO14/GPIRQ9 RESET-n PWRGOOD PIO14/GPIRQ9 AC22 GP_RESET GPRESET PRGRESET PRGRESET MCP120-475I/TT 10.0K (SHT 5) 7x 4.75K DACK1-N PIO11/GPDACK1 AF10 DREQ1 PIO7/GPDRQ1 PIO16/GPIRQ7 PIO16/GPIRQ7 PIO17/GPIRQ6 PIO17/GPIRQ6...
  • Page 218 6-24 TECHNICAL DATA ORBAN MODEL 9300 MD[0..31] MA[0..12] U2A MT48LC16 U3A MT48LC16 U1A SC520 MA12 MA12 MD15 MA12 MD31 MA12 DQ15 DQ15 MA11 MA11 MD14 MA11 MD30 MA11 DQ14 DQ14 MD31 MA10 +3.3V MA10 MD13 MA10 MD29 MD31 MA10 A10/AP...
  • Page 219 6-25 OPTIMOD-AM DIGITAL TECHNICAL DATA +3.3V PCI_AD[0..31] RNET4.7K +3.3V U1C SC520 U10A DP83816AVNG +3.3V PCI_AD31 PCI_AD31 REQ4 AD31 AD31 PCI_AD30 PCI_AD30 REQ3 AD30 AD30 PCI_AD29 PCI_AD29 REQ2 AD29 AD29 PCI_AD28 PCI_AD28 REQ1 AD28 AD28 PCI_AD27 PCI_AD27 AD27 AD27 PCI_AD26 PCI_AD26 AD26 AD26 PCI_AD25...
  • Page 220 6-26 TECHNICAL DATA ORBAN MODEL 9300 PWRGOOD +3.3V (SHT2) +3.3V 100K 100K 100K 0 OHM U1D SC520 (NO-STUFF) 4.75K AF25 AC13 TRIG/TRACE TRIG/TRACE AF23 AD24 BR/TC BR/TC AE21 JTAG_TMS JTAG_TMS AE25 AF21 JTAG_TDI JTAG_TDI AE24 AD21 JTAG_TCK JTAG_TCK AD26 PIO31/RING2-N...
  • Page 221 6-27 OPTIMOD-AM DIGITAL TECHNICAL DATA +3.3V U10B DP83816AVNG +3.3V +3.3V (NO-STUFF) +3.3V U2B MT48LC16 U3B MT48LC16 U4B E28F128 C201 RESERVED 1.0UF RESERVED RESERVED +3.3V VCCQ VSSQ VDDQ VSSQ VDDQ VSSQ VDDQ VSSQ VDDQ VSSQ VDDQ VSSQ VDDQ VSSQ VDDQ VSSQ VDDQ AUXVDD AUXVDD...
  • Page 222 6-28 TECHNICAL DATA ORBAN MODEL 9300...
  • Page 223 TRANSZORB C135 R162 AGND2 E204 AGND2 IC108 COMPONENT REF. DESIGNA T OR 6300 VA LUE 9300 VA LUE AGND4 AGND3 AGND2 AGND1 AGND R100, R107, R115, R120 1.00K, 1%, 0805 301OHM, 1%, 0805 R101, R108, R116, R121 4.99K, 1%, 0805 3.65K, 0.1%, 0805...
  • Page 224 6-30 TECHNICAL DATA ORBAN MODEL 9300 LEFT ANALOG OUTPUT (6300) ANALOG OUTPUT 1 (9300) L204 +5VA J201 MALE L200 C201 FILTER 1.0µF R253 R257 C232 L208 1.0µF ????? 1000PF R261 Servo C236 C240 C203 f-3dB = 0.10Hz 0.1µF +15V C233 0.1µF...
  • Page 225 6-31 OPTIMOD-AM DIGITAL TECHNICAL DATA E313 PICSDI (SHT8) AES/EBU AESINCS-N (SHT8) DIGITAL INPUT R301 49.9K AESINLRCK (SHT5) J300 L300 FEMALE AESINSCLK (SHT5) C300 PICSCK (SHT8) IC300 IC302 T300 R300 PICSDO (SHT8) FERRITE SC937-02 SDA/CDOUT SCL/CCLK 0.1µF ????? 110OHM MMODE_2 AD0/CS AD1/CDIN L301 EMPH...
  • Page 226 6-32 TECHNICAL DATA ORBAN MODEL 9300 IC400 IC403 AES/EBU DIGITAL PICSDI PICSCK OUTPUT 1 IC410A MMODE_2 (SHT8) SDA/CDOUT SCL/CCLK (SHT8) IC410B IC409A J400 MCLK_C AESOUT1CS-N PICSDO L400 (SHT9) MCLK_IN MMODE_1 (SHT8) AD0/CS AD1/CDIN (SHT8) MALE R400 T400 74ACT32 MCLK_OUT MMODE_0...
  • Page 227 6-33 OPTIMOD-AM DIGITAL TECHNICAL DATA E34 E35 IC501A IC502A IC503A IC504A E36 E37 DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 SD03 SD32 (SHT9) SDI0 SDO0 SDI0 SDO0 SDI0 SDO0 SDI0 SDO0 (SHT9) SD04 SD33 (SHT9) SDI1 SDO1 SDI1 SDO1 SDI1 SDO1 SDI1 SDO1 (SHT9) SD01 SD00...
  • Page 228 6-34 TECHNICAL DATA ORBAN MODEL 9300 IC501C IC502C IC503C IC504C DSP56367-150 DSP56367-150 DSP56367-150 DSP56367-150 AA0/RAS0 AA0/RAS0 AA0/RAS0 AA0/RAS0 AA1/RAS1 AA1/RAS1 AA1/RAS1 AA1/RAS1 AA2/RAS2 AA2/RAS2 AA2/RAS2 AA2/RAS2 SSI_DO (SHT8) SSI_DI (SHT8) SSI_CLK (SHT8) DSPEN0-N DSPEN1-N DSPEN2-N DSPEN3-N (SHT8) (SHT8) (SHT8) (SHT8)
  • Page 229 6-35 OPTIMOD-AM DIGITAL TECHNICAL DATA IC702 74LVX4245 +3.3V IC703 C700 PIC16C67-20L IC700 0.1µF E712 ISA_D[0..7] E713 E714 E703 (SHT4) RD0/PSP0 RC0/T1OSO/T1CKI E704 IORD-N E715 B to A ADRST-N RD1/PSP1 RC1/T1OSI/CCP2 E705 ISA_D0 DSP_BUSEN-N (SHT9) DARST-N RD2/PSP2 RC2/CCP1 ISA_D1 (SHT9) PICSCK SRCRST-N RD3/PSP3 RC3/SCK/SCL...
  • Page 230 6-36 TECHNICAL DATA ORBAN MODEL 9300 +3.3V +3.3V +3.3V JTAG PORT +3.3V IC807G R816 R817 R818 IC800 100.0K 100.0K 74ACT04D 100.0K C809 +3.3V VCCINT 0.1µF J800 VCCINT VCCIO VCCIO VCCIO VCCIO VCCIO HDR 5X2 VCCIO UNSHRD +3.3V IC804A IC807E C804...
  • Page 231 6-37 OPTIMOD-AM DIGITAL TECHNICAL DATA FROM POW ER SUPPLY TO CONTROL COMBO PCA TP902 (NO-STUFF) TP-DUAL J900 J901 C946 10µF C1003 C1004 C947 C948 C949 C950 C951 C952 C953 C954 C955 C956 C957 C958 C959 + C995 C996 0.1µF 0.1µF 0.1µF 0.1µF 0.1µF...
  • Page 232 6-38 TECHNICAL DATA ORBAN MODEL 9300 FRONT VIEW REAR VIEW FRONT PANEL PARTS LOCATOR DIAGRAM...
  • Page 233 6-39 OPTIMOD-AM DIGITAL TECHNICAL DATA CR1A CR1B CR1C CR1D CR1E CR1F CR1G CR1H CR1I CR1J CR2A CR2B CR2C CR2D CR2E CR2F CR2G CR2H CR2I CR2J CR3A CR3B CR3C CR3D CR3E CR3F CR3G CR3H CR3I CR3J CR4A CR4B GNDF T O GND PLA NE ON LY GNDF GNDF RY10...
  • Page 234 6-40 TECHNICAL DATA ORBAN MODEL 9300 RP 2 IC7C IC7F 74HC14A 74HC14A IC7D RES_NET 74HC14A D[0..7] D[0..7] 100 OHM 74AC574 74FCT574 IC7E DI SROW A DI SCOL B FY10 FY11 74HC14A FY12 FY13 SPARES 47PF FY14 FY15 8x2 POSTS 8x2 POSTS...
  • Page 235 6-41 OPTIMOD-AM DIGITAL TECHNICAL DATA R INPUT 50 - 100 HZ 4.5 - 9.5 KHZ TWO-BAND 5-BAND 5-BAND HIGH EQUALIZER LOWPASS PASS LIMITER COMPRESSOR HF ENHANCER FILTER FILTER L INPUT (SWITCHABLE BETWEEN ANALOG & DIGITAL) COMPRESSOR/LIMITER CONTROL COUPLING ANALOG OUTPUT #1 DISTORTION- OVERSHOOT TRANSMITTER...
  • Page 236 6-42 TECHNICAL DATA ORBAN MODEL 9300 [NOTES]...

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