Inovonics Dante 551 Installation & User Manual

Modulation monitor
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  • Page 4 HD Radio Technology is manufactured under license from iBiquity Digital Corporation. U.S. and Foreign Patents apply. For patents see http://patents.dts.com/. HD Radio and the HD, HD Radio and “ARC” logos are registered trademarks of iBiquity Digital Corporation in the United States and/or other countries.
  • Page 5: Table Of Contents

    TABLE OF CONTENTS Section I – INTRODUCTION 551 PRODUCT DESCRIPTION Introduction ....................5 Product Features ..................5 551 TECHNICAL SPECIFICATIONS Specifications.................... 6 Block Diagram ................... 8 Section II – INSTALLATION GENERAL Unpacking and Inspection ................ 9 MOUNTING, POWER AND ENVIRONMENT Rack Requirement..................
  • Page 6 BRINGING UP THE WEBPAGE SERVER Network Considerations ................. 15 Finding the 551 IP Address ..............15 Connecting ....................16 Section IV – USING THE WEB INTERFACE Internal Webserver .................. 17 The Menu List ..................18 Menu Variances ..................18 ‘Responsive’ Webpages ................. 18 THE WEBPAGE HEADER Monitor ID ....................
  • Page 7 FM AND HD1 ALIGNMENT Specs at-a-Glance ................... 33 Alignment Time Studies ................. 34 THE BANDSCANNER™ UTILITY Warnings! ....................34 Start Scanning..................35 Bars and Dots..................35 THE LISTENER EXPERIENCE Definition ....................36 Display Options ..................36 Image Error Reporting ................37 Additional Image Data ................
  • Page 8 Security and Passwords ................. 54 Signing In ....................54 Lost Password (Hard Reset) ..............55 The Hardware Profile ................55 Reboot ..................... 55 Updating Firmware .................. 56 551 Manual ....................57 ‘About’ Info ....................57 INOVONICS WARRANTY ..........INSIDE BACK COVER — 4 —...
  • Page 9: Section I - Introduction

    Section I INTRODUCTION 551 PRODUCT DESCRIPTION The Inovonics 551 HD Radio Modulation Monitor gives the FM Introduction radio broadcaster access to extensive signal parameter data, for both the analog-FM host transmission and all accompanying HD Radio® digital channels. The all-digital 551 combines detailed DSP signal analysis with a...
  • Page 10: Specifications

    551 TECHNICAL SPECIFICATIONS PLEASE NOTE: All specifications noted here Program Audio Outputs: are actual, real-world measurements, not ‘Assignable’ outputs utilize XLR con- optimistic allusions to theoretical ideals. nectors, ‘Dedicated’ outputs are RJ45 jacks per StudioHub® spec. Measurements should be repeatable when using appropriate test equipment.
  • Page 11 Bargraph & Numerical Level Metering: Real-Time Clock: Analog FM: Carrier Modulation • Stereo Auto-sets to Internet time; auto/manual Pilot & Subcarriers • Demodulated L/R DST setting; battery backup. & L+R/L-R • Stereo Separation • Stereo Power Requirement: Crosstalk • BS.1770 Loudness • Syn- 88-264V , 18W.
  • Page 12: Block Diagram

    Virtually all functionality is provided through firmware coding. The Block Diagram presented below illustrates product basics in an easily-under- stood form, although actual signal paths and logical functions may deviate appreciably from those depicted here. Block Diagram of the Inovonics 551 HD Radio Modulation Monitor — 8 —...
  • Page 13: Section Ii - Installation

    Unpacking and shipping damage. If damage is found or suspected, notify the Inspection carrier at once, and then contact Inovonics. We recommend that you retain the original shipping carton and packing materials for possible return or transshipment. If re- turned for Warranty repair, shipping damage sustained as a re- sult of improper packing for return may invalidate the Warran- IT IS IMPORTANT to register the Warranty of your 551.
  • Page 14: Ac Mains Power

    The 551 employs an internal ‘universal’ switchmode power AC Mains Power supply that accommodates mains voltages between 88V 264V Certified self-protection circuits have replaced the once-familiar fuseholder. If you need to replace the North-American mains plug with an- other, you will find that the individual cord conductors are col- or-coded in one of two ways.
  • Page 15: Assignable' Line Outputs

    Tuner section of the Now Playing Webpage menu or the Tuner LCD menu. HD program preselections apply to both the ‘Assigna- ble’ and the ‘Dedicated’ Line Outputs discussed next. Assignable outputs refer to the ANALOG LEFT/RIGHT and AES3 ‘Assignable’ DIGITAL outputs from XLR male connectors on the rear panel. Line Outputs Analog and digital outputs may be each assigned to a single program channel, FM, HD...
  • Page 16: Analog Line Output Characteristics

    Left- and right-channel ANALOG OUTPUT(S) on the rear panel Analog are electronically-balanced. This means that they are ground- Line Output referenced and not transformer-isolated. These outputs have a Characteristics resistive source impedance of 200 ohms. Levels are expressed in dBu (unloaded) notation next to the adjusting sliders. Although seldom seen in modern times, a legacy 600-ohm- terminating load will drop the actual dBm level 2.5dB below the figure shown beside the associated adjusting slider.
  • Page 17: Section Iii - Preparing To Connect

    Section III PREPARING TO CONNECT THE 551 FRONT PANEL All setup and operating adjustments of the 551 are under Front Panel vs. firmware control. There are no jumpers, switches or mechani- Web Interface Setup cal potentiometers. The unit may be set-up locally through the front-panel LCD-touchscreen, or remotely using the built-in Webserver interface and any networked computer, tablet or mobile device with a Web browser.
  • Page 18: The Admin Menu

    Admin at the bottom of the list. Please do that and then touch Admin. The Admin Menu The Admin menu displays your current firmware version, the se- rial number of your 551 and how long it has been running since AC mains power was last applied.
  • Page 19: Assignable Outputs & Headphone Volume

    Arrow #2 points to the headphone icon. Touching this will Assignable bring up a screen where the headphone volume may be adjust- Outputs & ed. This screen also comes up automatically when headphones Headphone Volume are plugged in. ‘Assignable’ line outputs and their levels may be set here as well (see Page 11).
  • Page 20: Connecting

    Bringing up the Webpages in- Connecting terface is as simple as enter- ing the IP address of the 551 into your browser’s address bar and clicking Enter. Alternatively, a Windows com- puter is able to locate and connect to the 551 by using the unit’s ‘Hostname’ in place of the IP address.
  • Page 21: Section Iv - Using The Web Interface

    Section IV USING THE WEB INTERFACE The Inovonics 551 includes an internal Webserver that contains Internal multiple interactive pages, or menus, for setup and operation Webserver of your unit. These pages give ready and interactive access to all settings, readouts, graphics, audio monitoring and alarms.
  • Page 22: The Menu List

    A list of all the Webpage menus can be found at the left edge of The Menu List any page. Click on any menu heading to go immediately to that Webpage. We have made every effort to coordinate the Webpages menus Menu with the front panel LCD-touchscreen menus, but this can’t Variances...
  • Page 23: Other Stream-Listening Options

    The button to the left of the loudspeaker lets you se- lect which among multiple programs you may listen to. The default is the main analog-FM program, but if HD Radio channels are available they may be se- lected here for listening. Up to 10 listeners can access the audio stream sim- ultaneously.
  • Page 24: The Alarm Panel

    mum/minimum figures for the time period. Some of these pa- rameters, along with others not in this grid, are displayed graphically in much greater detail and with selectable time scal- ing on the History Plots Webpage. Readouts in the top row give, in order: RSSI, the incoming FM carrier strength in dB (relative to 1 microvolt at the antenna in- put);...
  • Page 25: Tuning The 551

    Tuning the 551 This snapshot shows the Tuner subsection of the Now Playing Webpage. What’s discussed in connection with this image is al- so found in the LCD-touchscreen Tuner menu. In this example the 551 is tuned to Los Angeles station KLOS at 95.5MHz.
  • Page 26: Important

    Alarm programming instructions begin on Page 40. If you Important! make any changes to alarm settings, or to the miscellaneous selections listed below, you must return to the Now Playing Webpage and click the Save Changes bar to permanently associ- ate your changes with that preset.
  • Page 27: Fm Level Metering

    alarms from any of a number of stations he might service in a given market. First, StationRotation must be turned on by setting Enable: to On. This will inhibit manual tuning, graying-out the manual Tuner setup section completely. Next the Rotation Time (Sec): is pro- grammed, and this takes some planning.
  • Page 28: Pilot And Subcarriers

    by the Mod Response: buttons on the Webpages and LCD- touchscreen Setup/Radio screens. The default selection is the fastest, 50µs setting, but more ‘forgiving’ selections of 100µs, 200µs, 500µs and 1ms are also available. We recommend the more conservative default value, but it’s your call. You should typically see negligible difference between positive and negative deviation readings, reflecting only the asymmetry normally encountered in speech and music waveforms.
  • Page 29: Demodulated Fm Audio

    Demodulated FM Audio This metering area displays the demodulated FM program au- dio. Left and Right channel levels have quasi-peak response and a quick fallback for better visualization of instantaneous vs. av- erage program energy. Keep in mind that these meters in no way approximate “VU”...
  • Page 30: Itu-R Bs.1770 Loudness Measurement

    The 551 incorporates a program loudness measurement utility ITU-R BS.1770 based on (human) ‘perceived loudness’ per the ITU-R BS.1770 Loudness Standard. Meter readings under this standard are expressed in Measurement “LUs” (Loudness Units), one LU equivalent to 1dB. ‘Zero-LU’ does not conveniently correlate to a specific modula- tion percentage because of the Standard’s frequency weighting.
  • Page 31: Hd Level Metering

    Both these noise measurements are expressed in dB relative to 100% amplitude modulation of the FM carrier. HD LEVEL METERING HD Levels and Loudness This level readout for the HD1 program is typical of four such displays on this Webpage screen. The Left and Right meters are quasi-peak program audio bargraphs, with peak-hold and nu- meric display of the held value as previously explained for FM The LU display represents loudness per the...
  • Page 32: Spectrum Plots

    SPECTRUM PLOTS The 551 monitor includes an advanced, high-resolution FFT- based spectrum analyzer that delivers detailed and annotated graphic displays of selected signals. Images may be viewed ei- ther through the Webpages utility or from the front-panel LCD- touchscreen. Each signal selected for viewing carries its own family of graph setup options below the display.
  • Page 33: The Fm Baseband Spectrum

    Response: set to Average gives a steady and accurate level readout, Peak shows the peak value of the signal. Hold will ac- cumulate and display the highest peak value until the function is manually reset. At the bottom, the display Averages: the number of FFT compu- tations selected in the drop-down box.
  • Page 34: History Screen Basics

    Although these data are available through both the Webpages and front-panel LCD-touchscreen displays, Webpage presen- tation provides several extended options covered in this dis- cussion that will be found missing with front-panel operation. History Screen Basics The Modulation screen shown above is typical of 551 history- display plots, the buttons at the top choose among the various measurements.
  • Page 35: Modulation

    rent incoming value when the cursor is not on the screen. With Time Span: set at an hour or more, actual clock time of the event is shown bedside the cursor. The Modulation screen used in the example above displays Modulation both the peak value of carrier deviation in yellow, and a held- peak value in green.
  • Page 36: Integrated Loudness History

    This screen plots the Integrated loudness level for as Loudness many as four HD Ra- History dio programs, showing them in separate col- ors. These readings are integrated (long- term) “LU” loudness measurements. Note the Loudness op- tions below the plot, selectable between Ab- solute and Relative to FM.
  • Page 37: Audio Xy Display

    The Pause bar at the bottom of the screen lets you freeze the waveform, and the little magnifying glass in the upper-right corner gives a full-screen display. ‘scope function Audio XY can also serve as an XY Display “stereoscope.” An XY display will indicate both level and phase differences...
  • Page 38: Alignment Time Studies

    The Status bar tells whether the HD1 is leading or lagging the FM, and again by how many samples, plus whether the audio Phase between the programs is Normal or Inverted. The upper part of the screen plots both the instantaneous and Alignment average program delay error against time.
  • Page 39: Start Scanning

    Shown above is an entire FM-band plot of the busy Los Angeles FM market. Three Scan Type: modes may be selected at the bot- tom of the screen. The 551 can scan the band and display only the RSSI level; this is the quickest scan. It can also scan and display both the RSSI + RDS information, which takes a bit longer, and it can scan and display RSSI + RDS + HD infor- mation, as in the example, which requires a double-scan of the...
  • Page 40: The Listener Experience

    Hovering over the red dot will display Freq: and RSSI:, plus the RDS PI: code and its derived Call: letters and the PTY (programming format) of the station. This is shown in the upper inset at the right. Running a full RSSI + RDS + HD scan addition- ally shows the HD stations as blue bars, nearly always topped with red dots to indicate RDS info as well.
  • Page 41: Image Error Reporting

    The topmost display area is labeled FM. The more important RDS fields that accompany the analog-FM program are present- ed here. HD Radio PAD info and graphics are stacked below the FM RDS data. Once a station is tuned, the Listener Experience material will take a short while to load.
  • Page 42: Additional Image Data

    The other two yellow links bring up technical particulars relating to the specifications for both the station Logo and Artist Experience images. This self-help Website will also direct independent sources for assistance in for- matting Radio images properly. The Listener Experience dis- play for other HD Radio chan- nels this station carries will be presented in like manner.
  • Page 43: Hd Info

    ed. Proprietary Open Data Applications (ODA channels) are also totaled and shown. Clicking the Clear/Reset RDS bar at the bottom will indeed clear the registers and begins a new RDS data collection. Reset is au- tomatic when the station is changed. Like its counterpart for RDS, this Webpage presents a compre- HD Info hensive display of the PAD (Program-Associated Data) infor-...
  • Page 44: Alarm Status

    A further refinement of Image Data in tabular form appears be- low the rolling graphic. The tabulation assigns absolute values to Type, Packet Size, Segment # and Time. This tabulation ‘rolls’ as well, showing the same events as the timeline graphic. In- formation includes the times that images are received and cleared, and verifies the repeat interval.
  • Page 45: Overmod

    Any of the alarms is also able to initiate email or SMS/text mes- sages to selected personnel, and alarms are logged for later analysis or dressing-downs. Up to ten alarm conditions may be assigned to rear-panel GPO ‘tally’ outputs to interface with remote-control equipment or local lights and sirens.
  • Page 46: Hysteresis' Type Alarms

    dition. This example alarm setting has no hysteresis, but pro- vision for this has been included as we’ll see next. This discussion relates to a number of alarms, not necessarily ‘Hysteresis’ related, but with very similar setup options. This will pertain Type Alarms to the following: FM Audio Loss, Low Signal, HD1 Audio Loss, HD Audio Loss, HD...
  • Page 47: Rt Update

    (Sec): settings, which work the same way as alarms already dis- cussed. When a playout system ‘sticks’ while sending RDS RadioText, it RT Update can cause problems… not only the display of RadioText, but the attendant RT+ functions as well. Turn the Alarm: On and set a Time On (Min): at a nominal figure of 20 minutes or so to alert personnel to a ‘stuck’...
  • Page 48: Hd Psd Not Updated

    At the current (default) setting, an alarm is triggered if this figure reaches ±50 samples and remains beyond that figure for 30 sec- onds. For the alarm to reset, the HD1 pro- gram would have to wander back to within 5 samples of zero error and hold below an error of 5 samples for a full 30 seconds This alarm issues an alert when HD Radio Program Service Data...
  • Page 49: Radio Settings

    The log holds data on Alarm, type which monitored Sta- tion it pertains to (im- portant when the Sta- tionRotation feature is active), the Time and Date received, and its Duration. You may View Alarm Log on your screen and even filter the re- sults by overtyping Filter alarms…...
  • Page 50: Mpx Output

    Loudness Window (Sec) settings refer to the long-term-integrated LU loudness measurement readings for all LU-loudness meter- ing, which is the light-blue bar on these meters. The range is adjustable by the slider between 30 and 120 seconds. BS.1770 Standard is a bit nebulous with regard to this integra- tion;...
  • Page 51: Other Streaming Options

    The 551 offers HTTP/Icecast Streams for general ‘tune-in’ lis- Other tening, and as independent UDP streams that allow the 551 to Streaming send raw compressed audio to a specific IP address and port. Options Both modes are available concurrently and are set-up under the Stream category of Dedicated Outputs on the Setup Webpage.
  • Page 52: Network Setup And Internet Access

    Clicking the opens alarm options window. Here you specify Polarity:, whe- ther you want an Active Ground (ground) or Ac- tive Open (open-circuit condition) when alarm is triggered. Although the Type: of alarm has been facto- ry-set to the more im- portant faults, a pull-down menu lets you reassign that alarm to any of them.
  • Page 53: Assigning A Hostname

    You may change the default name MODEL551 to something else, Assigning a either to personalize the equipment name or to differentiate Hostname one 551 monitor from another one on the same network. Overtype the default Hostname: without using spaces. Be sure to click the Save bar at the bottom once all entries are finalized.
  • Page 54: Dante ® And Aoip Streaming

    But if your ISP issues a dynamic IP, which is often the case, this mandates ‘Dynamic DNS’ operation, using the services of an IP- forwarding provider. This is an operation you should entrust to your IT department; explanations and instructions are avail- able from multiple Web resources.
  • Page 55: The Dante Controller

    of flows can be directed to destinations, for a total of 16; any specific flow can be sent to more than one recipient. The Dante Controller is a free software utility available from The Dante Audinate, Dante’s developer. It is an essential software means Controller of finding, setting-up and controlling Dante-enabled devices on your network.
  • Page 56: The Mib File

    The MIB File is a small text file required by the SNMP Manager. The MIB File Click: Download MIB to save this file using the usual Windows methods. The MIB file is in plain text with a .mib extension, and may be read with Windows Notepad. NOTE: This is an abbreviated discussion of SNMP operation.
  • Page 57: Recipients (Send To)

    the Web, or you can check with the wireless carrier to confirm the proper addressing style for Internet texting delivery. When all recipients have been entered, click Save. You may also click Send Test Email, which will message all recipients to con- firm proper communications setup.
  • Page 58: Presentation Formats

    Good. We have provided a reliable default time server, which is Time Server 1.inovonics.pool.ntp.org. If you prefer another, overtype the Serv- er: entry with your alternate and click Save. ADMINISTRATIVE MATTERS 551 access may be protected by multilevel passwords, which...
  • Page 59: Lost Password (Hard Reset)

    551 is at the equipment site following this procedure: 1. Disconnect AC mains power. 2. Wait 10 seconds and then reapply AC power. 3. Immediately when the Inovonics logo ‘ ’ lights, place two or more fingers on the LCD-touchscreen.
  • Page 60: Updating Firmware

    Hardware Profile first might be a good idea. 551 firmware includes the Web interface pages, and updates Updating are easily uploaded to the unit when issued by Inovonics. Firmware NOTE: We recommend saving a fresh Hardware Profile, as a firmware update may affect user settings. If there is danger of compromising stored data, the firmware update will include notes to that effect.
  • Page 61: 551 Manual

    takes a minute or so and will return you to the new Web inter- face pages once the operation is complete. A PDF of the 551 manual has been included in the firmware. 551 Manual The bottom of the Admin screen shows the Serial Number: of your ‘About’...
  • Page 62 — 58 —...
  • Page 63: Inovonics Warranty

    INOVONICS WARRANTY TERMS OF SALE: Inovonics products are sold with an understand- ing of “full satisfaction”; that is, full credit or refund will be issued for products sold as new if returned to the point of purchase within 30 days following their receipt, provided that they are returned complete and in an “as received”...

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