Nautel VS1 Operation And Maintenance Manual
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Nautel VS1 Operation And Maintenance Manual

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See also: Troubleshooting Manual , Installation Manual
VS1 Transmitter
Operations and Maintenance
Manual
Document: NHB-VS1-OPS-3.1
Issue:
3.1 2013-10-01
Status:
Standard

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Summary of Contents for Nautel VS1

  • Page 1 VS1 Transmitter Operations and Maintenance Manual Document: NHB-VS1-OPS-3.1 Issue: 3.1 2013-10-01 Status: Standard...
  • Page 3 The comparisons and other information provided in this document have been prepared in good faith based on publicly available information. The reader is encouraged to consult the respective manufacturer's most recent published data for verification. © Copyright 2013 NAUTEL. All rights reserved.

  • Page 5: Table Of Contents

    VS1 Operations and Maintenance Manual Table of contents Contents Release control record About this manual About safety xiii Safety precautions Description Ac-dc power stage Exciter/control stage RF drive stage RF power stage Operating the transmitter User interfaces Viewing Transmitter Log...
  • Page 6 VS1 Operations and Maintenance Manual Table of contents Configuring remote inputs and outputs 2-144 Scheduler 2-155 Playlist Manager 2-158 Enabling and Operating the Orban Audio Processor 2-163 Routine maintenance Scheduled maintenance Replacing a damaged air filter Performing on-air checks Replacing the exciter/control PWB battery...

  • Page 7: Release Control Record

    VS1 Operations and Maintenance Manual Release control record Issue Date Reason 2012-01-10 Release 3 of product (NARF65B and NAR65B/01) 2013-10-01 Incorporated software version 4.1 information Issue 3.1 2013-10-01 Page vii...
  • Page 8 VS1 Operations and Maintenance Manual Page viii Issue 3.1 2013-10-01...

  • Page 9: About This Manual

    VS1 Operations and Maintenance Manual About this manual This manual provides technical information needed when operating, maintaining and troubleshooting an VS1 transmitter. This manual is intended for use by transmitter operators and field technicians. Using this manual If you are responsible for configuring or operating a transmitter, see Section 2, “Operating the...
  • Page 10 Tip: When you have completed a task or a step, put a checkmark beside the step number. Technical support Nautel offers technical support to customers over the Internet and by telephone. Nautel’s customer support team will answer your questions and work with you to identify and resolve problems.
  • Page 11 The Nautel website provides useful resources to keep you up to date on your VS1. Nautel User Group (NUG) The website includes a special section that customers can log into in order to access the Nautel customer newsletter, product manuals, frequently asked questions (FAQ), information sheets, and information about field upgrades.
  • Page 12 VS1 Operations and Maintenance Manual Page xii Issue 3.1 2013-10-01...

  • Page 13: About Safety

    VS1 Operations and Maintenance Manual About safety All Nautel transmitters are designed to meet the requirements of EN60215, Safety Requirements for Radio Transmitters. The philosophy of EN60215 is that the removal of any cover or panel that can only be opened using a tool is a maintenance activity, and that any person performing a maintenance activity is expected to be trained for that activity.
  • Page 14 VS1 Operations and Maintenance Manual Lightning hazards Before opening the transmitter and touching internal parts, remove and solidly ground the antenna connection. WARNING: It is not enough to ground the antenna terminal with the antenna still connected. Even a small impedance in the ground strap will result in lethal voltages during a lightning strike.

  • Page 15: Safety Precautions

    Personnel must be familiar with the transmitter, so that they can avoid physical danger, and be aware of hazards to themselves and the equipment. Nautel offers a number of training courses covering the basic fundamentals of RF systems and transmitters, and the operation and maintenance of the transmitter. For more information about available courses and schedules, go to the Nautel website at http://www.nautel.com/Training.aspx,...
  • Page 16 Operation of safety interlocks (if installed) First aid Nautel does not offer first aid training, since the hazards associated with high voltage and RF energy are not specific to the transmitter. However, the customer should provide first aid training to all per- sonnel who have access to the transmitter site.
  • Page 17 VS1 Operations and Maintenance Manual Marking hazards Place warning signs close to any hazardous areas or systems (e.g., the feedline or the antenna system). Make the signs large enough that they cannot be missed. Provide signage in all languages used in the region.
  • Page 18 (and to protect the rest of your site equipment and your personnel). For detailed information about lightning protection, see the Nautel Site Preparation Manual, available from your Nautel sales agent, or online from the Nautel website.

  • Page 19: Description

    Description Section 1: Description Refer to the functional block diagram: Block Diagram - VS1 Transmitter - see page 1-7. This section provides a high-level description of the transmitter’s key sections. The transmitter circuitry is subdivided into four basic stages: •...
  • Page 20 VS1 Operations and Maintenance Manual Description Power supply module See also electrical schematic Figure SD-1 . Power supply module U2 converts the ac input voltage to a regulated dc supply (PA volts) for the PA PWBs (A6 through A9) in the RF power stage. The power supply module is rated for a nominal 2000 W and provides an output voltage between 7 and 53 V (typically 48 V).

  • Page 21: Exciter/Control Stage

    VS1 Operations and Maintenance Manual Description Exciter/control stage See also electrical schematic Figure SD-1 . Detailed schematics are not included in the Troubleshooting Manual. The exciter/control stage performs many critical functions for the transmitter. The primary component of this stage is the exciter/control PWB (A1).

  • Page 22: Rf Drive Stage

    VS1 Operations and Maintenance Manual Description • provides local and remote interfacing for the transmitter. Local interfacing is performed via the front panel display (U4) - a 4 x 20 character LCD display - and its adjacent keypad. The UI contains a menu-based series of pages that serve specific functions. Similar interfacing, as well as more advanced functionality, is available on a remotely accessed AUI.
  • Page 23 VS1 Operations and Maintenance Manual Description Combiner PWB See Figure SD-2 . The combiner PWB (A10) accepts the RF outputs of the four PA PWBs and combines them into a single output. This single output is applied to the low pass filter PWB (A11).
  • Page 24 VS1 Operations and Maintenance Manual Description Page 1-6 Issue 3.1 2013-10-01...
  • Page 25 VS1 Operations and Maintenance Manual Figure 1.1: Block Diagram - VS1 Transmitter BLOCK DIAGRAM - VS1 AUDIO USER INTERFACE PROCESSOR (OPTIONAL) OUTPUT FWD PWR COMBINER OUTPUT REFLD PWR INTERFACE PA TEMP 2 HEATSINK TEMP PA TEMP 1 HEATSINK TEMP SENSOR 2...
  • Page 26 VS1 Operations and Maintenance Manual Issue 3.1 2013-10-01 Page 1-8...

  • Page 27: Operating The Transmitter

    VS1 Operations and Maintenance Manual Operating the transmitter Section 2: Operating the transmitter This section provides information about operating the VS1 transmitter: • User interfaces on page 2-9 – Front panel UI - see page 2-9 – Front Panel UI - Main menu - see page 2-10 –...
  • Page 28 – Setting the Clock - see page 2-125 – NTP servers - see page 2-128 – Nautel Phone Home - see page 2-130 – Setting call sign/ID - see page 2-131 – Audio low thresholds - see page 2-132 Page 2-2...
  • Page 29 VS1 Operations and Maintenance Manual Operating the transmitter • User Settings - Front Panel UI - see page 2-133 – Setting Pilot Sample Level - see page 2-133 – LCD Settings - see page 2-134 – Signal Generator - see page 2-136 –...
  • Page 31 FRONT PANEL UI Main Menu Top Level First Time (page 2-10) Setup Screens Status Screen displayed during initial turn-on only RF On/Off (page 2-11) Select Preset (page 2-67) User Settings Edit Presets (see Figure 2-2) page 2-133 Remote I/O (page 2-151) Set Clock (page...
  • Page 33 FRONT PANEL UI Select Preset to Edit Presets Edit or Create New Preset Enable (page 2-80) (page 2-67) RDS Settings (page 2-78) Data Source (page 2-80) Baud Rate (page 2-80) Output Power (page 2-68) RDS Level (page 2-80) RDS Phase (page 2-80) Frequency...
  • Page 35 Time Setup page 2-125 Upgrade Software page 2-94 NTP Servers page 2-128 Audio Input Calibration page 2-96 Nautel Phone Home page 2-130 IBOC Settings - (VSHD) page 2-98 Setting Call Sign/ID page 2-131 Exciter TCXO page 2-99 Audio Low Thresholds...

  • Page 37: User Interfaces

    • AUI pages - see page 2-20 • AUI Menu page - see page 2-21 The user can interface with the VS1 using one of two methods: • Locally, using the front panel display and navigational buttons (see Front panel UI).

  • Page 38: Lcd Display

    VS1 Operations and Maintenance Manual Operating the transmitter LCD display This display shows all the UI screens. The display’s top level screen, used for viewing purposes only, is shown in Figure 2.4. Figure 2.4: Top Level Screen The top level screen displays the following information: •...
  • Page 39 VS1 Operations and Maintenance Manual Operating the transmitter Navigational buttons There are six push-buttons on the right-hand side of the LCD display that allow navigation through the UI pages, as well as modifying selected settings. – Up and down - on menu and list screens, moves cursor up and down through the associated page;...
  • Page 40 VS1 Operations and Maintenance Manual Operating the transmitter Front panel UI screens Table 2.1 defines the available front panel display screens. Table 2.1: Front Panel UI Screens UI Screen Function See Page First Time Setup Screens Guides the user through initial setup of the VS Series transmitter.
  • Page 41 VS1 Operations and Maintenance Manual Operating the transmitter Table 2.1: Front Panel UI Screens UI Screen Function See Page User Settings - Edit Presets - Edit the selected preset’s modulation loss page 2-86 Mod Loss functionality, such as enable/disable, setting threshold, setting timeout period, setting resulting action and selecting a backup preset.
  • Page 42 VS1 Operations and Maintenance Manual Operating the transmitter Table 2.1: Front Panel UI Screens UI Screen Function See Page User Settings - Scheduler Set up scheduler page 2-157 User Settings - Audio Processor Set audio processor to none or Orban Inside.
  • Page 43 VS1 Operations and Maintenance Manual Operating the transmitter Table 2.1: Front Panel UI Screens UI Screen Function See Page System Settings - OS Recovery Initiate a recovery reset of the operating system in page 2-104 the event of a failed software upgrade.
  • Page 44 2.6) is available via remote connection only. To access the AUI, you need a PC (and a web browser) that is connected to the VS1 - directly or through a switch - via its rear panel LAN connection (A1J8A). The AUI has a wide range of displays, including: –...
  • Page 45 VS1 Operations and Maintenance Manual Operating the transmitter The top banner is permanent on all AUI pages and includes: From any AUI page, click the Nautel logo to return to the Home page. Nautel Logo Displays day, month, year and current time.
  • Page 46 VS1 Operations and Maintenance Manual Operating the transmitter Resets protection circuits and power supplies that were inhibited, but are now alarm-free. To Reset initiate an alarm reset from the front panel display, (see Resetting alarms on page 2-90). Log Out : Click to log out of the AUI session and return to the login menu. To log in again, use your remote PC’s keyboard to enter your Username and Password, then click the Submit button.
  • Page 47 • In the Password field, enter the password. Default is blank. Note: The Nautel AUI is factory configured with a default login username and password. Nautel recommends that you change the password to improve overall system security (see Changing the Password on page 2-107).
  • Page 48 VS1 Operations and Maintenance Manual Operating the transmitter AUI pages Table 2.2 defines the available AUI pages. Table 2.2: AUI Pages AUI Page Function See Page Home View meters, tool menu panels, choose options and page 2-16 navigate to other pages.
  • Page 49 VS1 Operations and Maintenance Manual Operating the transmitter AUI Menu page From the home page, click the Menu button to view the Menu page (see Figure 2.8). From this page, you can select one of the following sub-menus: Figure 2.8: Main Menu Page •...
  • Page 50 SNMP configuration, capturing critical trans- mitter data, using an external 10 MHz source, setting a spectrum mask, setting the system date and time, configuring NTP servers, using Nautel Phone Home technology, setting the call sign/ID and configuring audio low thresholds (see User Settings - AUI on page 2-109).

  • Page 51: Viewing Transmitter Log

    Transmitter Log - Using the front panel on page 2-28). Transmitter Log - Using the AUI You can view the VS1’s events log using the AUI’s Log page - see Figure 2.9. This page shows a configurable log of all transmitter events. To view the page, click the Log button in the bottom banner of any AUI screen.
  • Page 52 ! indicates high severity (RF output is inhibited)]. – Time of Event indicates the time and date that the event that occurred. Managing the log You can manage the VS1 AUI’s events log by clicking on the Log Manager button (see Figure 2.10).
  • Page 53 VS1 Operations and Maintenance Manual Operating the transmitter Filter Logs You can filter transmitter events based on their origin or date by clicking the Filter Logs button in the log manager (see Figure 2.10 on page 2-24). Click the Device Type drop-down arrow, and select the desired device type to filter events based on the type selected.
  • Page 54 VS1 Operations and Maintenance Manual Operating the transmitter Click the Delete by date checkbox to allow deletion of events that occurred prior to ( Older than ) a user-specified date and time. Use the up and down arrows to select the date and time and click OK to delete the specified events.
  • Page 55 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.13: Log Statistics Selects item at top of current page Selects next lower page items Scrolls up one item Scrolls down one item Selects next higher page items Selects item at...
  • Page 56 When you select View Status -> Alarms or View Status -> View Log from the Main Menu (see Figure 2.15), you can view various active or logged events, respectively, of the VS1. These parameters are displayed on multiple pages of Meters screens.
  • Page 57 VS1 Operations and Maintenance Manual Operating the transmitter The View SW Versions screen displays the current View Software Versions - front Panel UI. versions of the different software being used in the transmitter (see Figure 2.16). Figure 2.16: View Software Versions Issue 3.1 2013-10-01...

  • Page 58: Viewing Aui Tool Menu Panels

    Lissajous plot - see page 2-40 • AM-AM and AM-PM correction screens - see page 2-41 The VS1 AUI provides up to ten tool menu panels that you can choose to display on the AUI home page (see Figure 2.17). Up to four tool menu panels can be displayed at one time, including a spectrum analyzer.
  • Page 59 VS1 Operations and Maintenance Manual Operating the transmitter Describing AUI Tool Menu Options Click on the desired tool menu panel to display it. See Table 2.3 on page 2-31 for a description of each tool menu panel. Figure 2.18: Tool Menu Options...
  • Page 60 VS1 Operations and Maintenance Manual Operating the transmitter Table 2.3: Tool Menu Panels EQ Filter Delay Displays the delay of the modulator’s EQ filter across its page 2-39 bandwidth Lissajous Plot Displays a Lissajous figure that represents the relationship page 2-40...
  • Page 61 VS1 Operations and Maintenance Manual Operating the transmitter AUI Tool Menu Panels Procedures Each instrument panel has a menu bar that may be different from other panels (see Figure 2.19: Tools Menu on Home Page Backward one step Forward one step...
  • Page 62 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.20: Instrument Cursor Manipulation Cursor Tools to move cursor and display information Figure 2.21: Instrument Panel - Expansion Example Maximize/Minimize buttons Page 2-34 Issue 3.1 2013-10-01...
  • Page 63 If these spurious emissions are observed on the spectrum analyzer, Nautel recommends that a calibrated, external spectrum analyzer be used to verify the presence of spurs.
  • Page 64 VS1 Operations and Maintenance Manual Operating the transmitter Click the panel to display a cursor in the approximate area. The cursor position (frequency and amplitude) is noted in the upper, right-hand corner of the panel. Click on other areas of this instrument panel to provide a coarse adjustment of the cursor position.
  • Page 65 RF output. Equalizer screens The VS1’s exciter includes a fixed equalizer to optimize audio performance. There are three menus available in the tool panel - EQ Frequency , EQ Impulse Response and EQ Filter Delay . Coefficients are selected based on your channel frequency.
  • Page 66 VS1 Operations and Maintenance Manual Operating the transmitter Use the left and right buttons to make fine adjustments to the cursor position. Use the up or down button to maximize (if it was minimized) or minimize (if it was maximized) the panel size.
  • Page 67 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.26: EQ Filter Delay EQ filter delay Figure 2.26. This panel displays the delay of the modulator’s EQ filter across its bandwidth. Click on the panel to display a cursor in the approximate area. The cursor position (frequency and delay) is noted in the upper, right-hand corner of the panel.
  • Page 68 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.27: Lissajous Plots L and R mode I and Q mode Lissajous plot Figure 2.27. This panel displays a Lissajous plot that represents either left and right audio content or a representation of the FM modulated signal (I and Q). I and Q will be automatically selected when using MPX as the main audio source.
  • Page 69 VS1 Operations and Maintenance Manual Operating the transmitter AM-AM and AM-PM correction screens Available only when the transmitter is used with a VSHD exciter. When the transmitter is operating with digital carriers, the exciter linearizes the transmitter’s RF drive signal by performing adaptive pre- correction.
  • Page 70 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.29: AM-PM Correction AM-PM correction This panel displays the phase correction being applied to the RF drive signal. The x-axis represents the signal amplitude and the y-axis represents the phase shift correction applied for a given amplitude value.
  • Page 71 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.30: Power Distribution Plot Power distribution Figure 2.30. Available only when the transmitter is used with a VSHD exciter. The exciter measures the relative power levels of the signal and determines the probability of exceeding a given power level, relative to the average power.
  • Page 72 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.31: Signal Constellation Signal constellation Figure 2.31. The exciter constantly measures the transmitter signal and performs basic demodulation of the digital carriers. The Signal Constellation panel displays the phase and amplitude of the symbols being modulated within an OFDM sub-carrier as dots on a cartesian graph.

  • Page 73: Viewing Real-Time Meters

    VS1 Operations and Maintenance Manual Operating the transmitter Viewing Real-Time Meters The AUI can be used to display metered parameters on the page (see Figure 2.33), if selected Home individually from the page or saved in a meter list layout and set to default.
  • Page 74 VS1 Operations and Maintenance Manual Operating the transmitter Describing the meter display The meters displayed in the AUI represent the active meters selected for display. Each meter is a colour-coded bar with minimum and maximum values (see Figure 2.33). The current value for a meter is indicated by an arrow on the colour-coded bar, as well as a numeric value below the meter.
  • Page 75 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.33: VSHD Meter List View Window (Controller Shown) to close/delete Scroll Bar Information Buttons (displays full set of meters for specific sub-device) Identifying meter information on a specific sub-device Open the Meters List View window and select one of the desired transmitter sub-devices.
  • Page 76 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.34: Detailed Sub-System Information (Controller shown) Figure 2.34 displays the status of the selected sub-system, as well as real-time meter values. The Alarms section shows any active alarms pertaining to the sub-system.
  • Page 77 VS1 Operations and Maintenance Manual Operating the transmitter Saving a meter list Note: Meter lists are associated with user accounts. Lists saved in this screen are only displayed in the current user account. Setting a list as default will define the meters that will appear when logging into the current account (or after an ac power interruption in the local AUI if this is the default user account).
  • Page 78 When you select View Status -> View Meters from the Main Menu (see Figure 2.36) you can view various metered parameters of the VS1. These parameters are displayed as a list on the View Meters screen. Note: This screen is for viewing purposes only and does not offer the same level of analytical features as the AUI’s System Review page (see...

  • Page 79: Managing Presets

    VS1 Operations and Maintenance Manual Operating the transmitter Managing Presets This section includes the following subjects: • Managing Presets - Using the AUI • Loading presets using the AUI - see page 2-52 • Activating presets using the AUI - see page 2-52 •...
  • Page 80 VS1 Operations and Maintenance Manual Operating the transmitter Loading presets using the AUI When first entering the Presets page, the current “active” preset is displayed (see Figure 2.37 on page 2-51). If the current preset is not the desired one, use the Load button on the left-side of the AUI to call up a window containing a list of available presets.
  • Page 81 VS1 Operations and Maintenance Manual Operating the transmitter Editing or creating presets using the AUI When a presets page is opened from the main menu, the Current Settings of the transmitter are displayed. They define the current operational state of the transmitter. Current Settings can be edited and then immediately activated by pressing the Save button.
  • Page 82 VS1 Operations and Maintenance Manual Operating the transmitter • Mode: Set the overall transmission mode. Available options are: – FM: an analogue only mode, transmits a carrier, frequency modulated with audio. – HD: all digital mode; this mode transmits the upper and lower digital sidebands of OFDM IBOC carriers.
  • Page 83 VS1 Operations and Maintenance Manual Operating the transmitter Mode - additional calibration settings: – IBOC Injection (Lower): for FM+HD and HD modes, enter value, in dB, between -20 and -10 dB for the IBOC injection level of the lower sideband of digital carriers. This value determines the relationship between the digital carriers power and the analog carrier power.
  • Page 84 The default value is 50 V and typically does not change. – HD Power Boost: for FM+HD mode only. Enable this setting to engage Nautel’s digital PowerBoost process, an advanced peak-to-average power ratio reduction that increases hybrid-mode transmitter efficiency and power capability.
  • Page 85 VS1 Operations and Maintenance Manual Operating the transmitter Main Audio tab: (see Figure 2.40) • Audio Source: Connects the appropriate exciter input for use. Available options are: – Left/Right/Mono: this source allows for further configuration via Analog Level, Audio Mode (Mono L+R, Mono L, Mono R, Stereo), 15kHz Lowpass, Preemphasis, Main Audio Gain Adjust settings.
  • Page 86 VS1 Operations and Maintenance Manual Operating the transmitter Main audio - additional configuration settings: – Analog Level: applies to Left/Right/Mono source only; enter value between -12 and +12 dBu, which represents the input voltage level that yields 100% modulation (Default is 0.0 dBu).
  • Page 87 VS1 Operations and Maintenance Manual Operating the transmitter SCA tab: (see Figure 2.41) • MPX SCA: Connector SCA2) for use with an externally generated (J7:A for SCA1, J7:B for SCA; select Enabled or Disabled. When enabled, all the selections listed below are active.
  • Page 88 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.41: Presets - SCA Tab Note: Refer to FCC guidelines for allowable modulation depth with SCAs or RDS enabled. Page 2-60 Issue 3.1 2013-10-01...
  • Page 89 Note: For RDS operation, an external unit or software can send data to the exciter. The exciter generates the RBDS carrier and injects the data. Nautel supports the strings listed below. The data format is XX=yyyy. – Data Source: select Internal, Ext. ASCII, Ext. UECP, ASCII Over IP, or UECP Over IP...
  • Page 90 VS1 Operations and Maintenance Manual Operating the transmitter – PTYN (programme type name): this field can be used for detailed description of the PTY by 8 digits. Example: if the PTY is 4 (Sport) a PTYN like "Football" could be transmitted.
  • Page 91 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.42: Presets - RDS Tab (1 of 2) Figure 2.43: Presets - RDS Tab (2 of 2) Note: Refer to FCC guidelines for allowable modulation depth with SCAs or RDS enabled.
  • Page 92 VS1 Operations and Maintenance Manual Operating the transmitter Other Settings tab: • Pilot Level : enter value between 6 and 12% (typically 9%); this level is added to the compos- ite baseband • Pilot 1 PPS Sync : select On or Off. If On, enter: –...
  • Page 93 VS1 Operations and Maintenance Manual Operating the transmitter • AGC Limiter: If Enabled, when the modulation level exceeds the AGC Limit, the gain of the audio input will instantly decrease in order to reduce the modulation level below the AGC limit threshold.
  • Page 94 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.44: Presets - Other Audio Tab (1 of 2) Figure 2.45: Presets - Other Audio Tab (2 of 2) Click the Save button to save preset information. Saving presets. From the Presets page, click the Delete button. Highlight the preset you wish Deleting presets.
  • Page 95 VS1 Operations and Maintenance Manual Operating the transmitter Managing Presets - Using the front panel Selecting the active preset When you choose Select Preset from the Main Menu (see Figure 2.46) you can select the active preset for transmitter operation.
  • Page 96 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.48: Create New Preset screen Figure 2.49: Preset Editing menu Displayed only when VSHD exciter is used Within the preset editing menu, use the up and down buttons to scroll through the options and press the accept (checkmark) button to enter the selected editing menu/screen.
  • Page 97 HD, -14 dB 390 (all frequencies) HD, -10 dB 350 (all frequencies) ** Maximum power set point limits can vary from the indicated value for various reasons. Nautel does not guarantee performance at the indicated values. Issue 3.1 2013-10-01 Page 2-69...
  • Page 98 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.51. Use the up and down buttons to edit the output power (in 0.01 MHz Frequency. increments, then press the accept (checkmark) button to save the change. Press the cancel ( X ) button to return to the previous menu.
  • Page 99 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.54: IBOC Settings editing screens • IBOC Injection: Use the up and down buttons to select an IBOC injection level between -20 and -10 dBc (in 0.1 dB increments), then press the accept (checkmark) button to save the change.
  • Page 100 VS1 Operations and Maintenance Manual Operating the transmitter When you select Main Audio from the Preset editing options screen, you can edit Main Audio. various main audio parameters (see Figure 2.55). Figure 2.55: Main Audio menu Use the up and down buttons to scroll through the main audio menu options, then press the accept (checkmark) or right arrow button to enter the selected editing screen.
  • Page 101 VS1 Operations and Maintenance Manual Operating the transmitter • Source: Use the up and down buttons to locate the desired audio source - AES , MPX , Ana- log L/R or Audio Player , then press the accept (checkmark) button to save the change. Press the cancel ( X ) button to discard changes and return to the previous menu.
  • Page 102 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.57: Input Levels editing screens • Bal L/R Level: Select a level between -12 and 12 dBu. • MPX Level: Select a level between 1 and 5 V peak-to-peak. • Digital Level: Select a level between -25.5 and 0 dBFS.
  • Page 103 VS1 Operations and Maintenance Manual Operating the transmitter When you select Pilot Settings from the Preset editing options screen, you can edit Pilot Settings. the settings of the pilot signal (see Figure 2.58). Figure 2.58: Pilot Settings menu Use the up and down buttons to move the cursor to the desired pilot setting and then press the right button to enable editing of the parameter.
  • Page 104 VS1 Operations and Maintenance Manual Operating the transmitter When you select SCA Settings from the Preset editing options screen, you can edit SCA Settings. various SCA parameters (see Figure 2.60). Figure 2.60: SCA Settings menu Use the up and down buttons to move the cursor to the desired SCA setting and then press the right button to enable editing of the parameter.
  • Page 105 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.62: Internal SCA1 and SCA2 editing screens • SCA Enable : Select ON or OFF. • SCA Level: Select a level between 0 and 20%. • SCA Freq: Select a frequency between 20 and 100 kHz.
  • Page 106 VS1 Operations and Maintenance Manual Operating the transmitter When you select RDS Settings from the Preset editing options screen, you can edit RDS Settings. various RDS parameters (see Figure 2.63). Figure 2.63: RDS Settings menu Use the up and down buttons to move the cursor to the desired RDS setting and then press the right button to enable editing of the parameter.
  • Page 107 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.64: RDS Settings editing screens Issue 3.1 2013-10-01 Page 2-79...
  • Page 108 For an ASCII Over IP data source, RDS information should be sent to the IP address of the VS1, port 7005. Note: For title/artist functionality, the VS1 supports the radio text (RT) data type, using the UECP or Ext. ASCII data source. PS scrolling is not currently supported. •...
  • Page 109 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.65: DI Code editing screens • Art. (Artificial) Head: Select ON or OFF. • Compression: Select ON or OFF. • Dynamic: Select Dynamic or Static. • Stereo: Select Stereo or Mono.
  • Page 110 VS1 Operations and Maintenance Manual Operating the transmitter When you select Limiter Settings from the Preset editing options screen, you Limiter Settings. can edit various limiter parameters (see Figure 2.67). Figure 2.67: Limiter Settings menu Use the up and down buttons to move the cursor to the desired limiter and then press the right button to enter the associated sub-menu for: •...
  • Page 111 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.68: Hard Limiter sub-menu and editing screens • Enable: Select ON or OFF. • Limit: Select a value between 0 and 160%. Figure 2.69: AGC Limiter sub-menu and editing screens •...
  • Page 112 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.70: 2-Slope Limiter sub-menu and editing screens • Enable: Select ON or OFF. • Limit: Select a value between 0 and 160%. • Gain: Select a value between 0 and 100%.
  • Page 113 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.71: L/R Limiter sub-menu and editing screens Use the up and down arrows to select ON or OFF, then press the accept (checkmark) button to save the change. Press the cancel (X) button to discard changes and return to the previ- ous menu.
  • Page 114 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.72: MPX RMS Limiter sub-menu and editing screens Use the up and down arrows to select ON or OFF, then press the accept (checkmark) button to save the change. Press the cancel (X) button to discard changes and return to the previ- ous menu.
  • Page 115 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.74: Mod Loss editing screens • Enable: Determines whether the audio loss feature is used. Select ON or OFF. • Threshold: Sets the audio threshold below which the transmitter will take action. Select a value between 0 and 100%.
  • Page 116 VS1 Operations and Maintenance Manual Operating the transmitter When you select Audio Delay from the Preset editing options screen, you can edit or Audio Delay. disable the audio delay period (see Figure 2.75). Figure 2.75: Audio Delay menu Use the up and down buttons to change the audio delay setting between disabled and any time period between 0 and 13 seconds, then press the accept (checkmark) button to save the change.
  • Page 117 VS1 Operations and Maintenance Manual Operating the transmitter Configuring an HD Powerboost Preset In order to operate with HD PowerBoost, you must either load an existing HD PowerBoost preset or create a character-specific preset name to allow the software to recognize the HD PowerBoost preset.

  • Page 118: Enabling Remote Control

    VS1 Operations and Maintenance Manual Operating the transmitter Enabling remote control Users can enable remote control via the the front panel display (see Using the front panel below). AUI users are by default using the transmitter in remote mode. Using the front panel...

  • Page 119: Viewing Transmitter Status

    (RF output not affected); a single red ! indicates medium severity (RF output is reduced); three red ! indicates high severity (RF output is inhibited)]. Refer to the VS1 Troubleshooting Manual for detailed information on alarm details such as root cause and troubleshooting tips.

  • Page 120: System Settings - Aui

    VS1 Operations and Maintenance Manual Operating the transmitter System Settings - AUI This section includes the following topics: • Resetting the AUI or Exciter - see page 2-94 • Upgrading Software - see page 2-94 • Calibrating Audio Inputs - see page 2-96 –...
  • Page 121 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.81: Main Menu - System Settings The following options are available: • Reset: Allows for rebooting of the AUI or the exciter (active or standby, as applicable) (see Resetting the AUI or Exciter on page 2-94).
  • Page 122 VS1 Operations and Maintenance Manual Operating the transmitter Resetting the AUI or Exciter You can reset (reboot) the AUI or the exciter using the remote AUI Reset page. To view the AUI’s Reset page (see Figure 2.82), select Reset from the System Settings option.
  • Page 123 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.83: System Settings - Upgrade Software • Current Version: indicates the current software version. • Select Upgrade File: displays the available upgrade files uploaded to the transmitter. • Details: opens a window containing information about the installed software. If an upgrade file is selected, the screen shows a comparison between the installed version and the selected upgrade by component.
  • Page 124 VS1 Operations and Maintenance Manual Operating the transmitter Calibrating Audio Inputs You can calibrate analog and MPX (composite) audio inputs using the remote AUI (see Calibrating Audio - Using the AUI) or using the local front panel display (see Calibrating Audio - Using the Front Panel on page 2-97).
  • Page 125 VS1 Operations and Maintenance Manual Operating the transmitter Calibrating Audio - Using the Front Panel To view the front panel’s audio input calibration screens, select System Settings -> Calibration from the Main Menu (see Figure 2.85 on page 2-97) Figure 2.85: Front Panel - Audio Input Calibration Screen...
  • Page 126 VS1 Operations and Maintenance Manual Operating the transmitter IBOC settings - VSHD only This system setting (see Figure 2.86) allows users to establish Forward Tap Delay, FM+HD Low Inj Gain, FM+HD High Inj Gain and HD only system Gain levels. It also allows for an IBOC power calibration.
  • Page 127 VS1 Operations and Maintenance Manual Operating the transmitter Calibrating Exciter TCXO You can calibrate the internal clock reference to an external 10 MHz clock or manually enter an offset value using the remote AUI (see Calibrating Exciter TCXO - Using the...
  • Page 128 VS1 Operations and Maintenance Manual Operating the transmitter Calibrating Exciter TCXO - Using the front panel To view the front panel’s TCXO calibration screens (see Figure 2.88), select System Settings -> Calibration from the Main Menu . Figure 2.88: Front Panel - TCXO Calibration Use the up or down arrow to place the cursor next to TCXO Offset , then press the accept (checkmark) button to enter the TCXO Offset screen.

  • Page 129: System Settings - Front Panel Ui

    Making changes to these settings may void your warranty. Contact Nautel before making changes. You can establish calibration values and fault thresholds for critical parameters of the VS1 using the remote AUI or using the local front panel display. The following options are available: •...
  • Page 130 VS1 Operations and Maintenance Manual Operating the transmitter Configuring ARM Watchdog Note: ARM watchdog configuration is only available using the front panel display. From the front panel UI, you can enable or disable the ARM watchdog feature. This feature, when enabled, monitors communication between the ARM processor and the DSP processor on the exciter/control PWB within the controller module.
  • Page 131 VS1 Operations and Maintenance Manual Operating the transmitter Configuring RF drive source Note: Configuration of the RF drive source is only available using the front panel display. From the front panel UI, you can configure the source of the transmitter’s RF drive (internal or external).
  • Page 132 From the front panel UI, you can perform a recovery reset of the operating system (OS). You will also need to install a flash drive, provided by Nautel, in one of the two USB ports on the rear of the controller module (A4).
  • Page 133 VS1 Operations and Maintenance Manual Operating the transmitter Firmware Update From the front panel UI, you can update firmware used in the transmitter. To perform a firmware update, select System Settings -> Firmware Update from the Main Menu (see Figure 2.93).

  • Page 134: Setting User Accounts

    The VS1 contains a default user account when it leaves the factory. This account appears as Nautel (Auto) in the List of Users and has Super User permission level. The default Username is “Nautel”.
  • Page 135 VS1 Operations and Maintenance Manual Operating the transmitter Setting User Type There are four user type selection options, each with their own specific functionality. All users have permission to change their own username and password, but are otherwise limited to the following functions: •...
  • Page 136 When you enter the User Accounts page for the first time, it is recommended you create an account and then delete the default Nautel account, as follows: 1. Login to the AUI using the default Username (“Nautel”) and Password (blank). 2. Set up your own Administrator account, with your desired Username and Password.

  • Page 137: User Settings - Aui

    VS1 Operations and Maintenance Manual Operating the transmitter User Settings - AUI Note: Unless otherwise noted, the following functions are only available via remote connection to the AUI. You can configure network settings, configure email and notification settings, configure SNMP...
  • Page 138 UI (see Enabling NTP on page 2-128). • Nautel Phone Home: Provides a unique diagonostic tool that leverages stored transmitter information to assist in the analysis of the cause of specific alarms (see Nautel Phone Home on page 2-130).
  • Page 139 UI) to ensure you can log in after changes have been made. Determining DHCP Setting One of the main decisions in configuring the network connection on your VS1 transmitter is whether you set DHCP to ON or OFF . If you are connecting to a network, consult with a network administrator before connecting the transmitter to your network to determine whether to enable (turn ON ) or disable (turn OFF ) the DHCP setting.
  • Page 140 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.97: Network Settings Screens All addresses shown are for reference purposes only Displays a number that serves as unique network adapter iden- tifier. This is set by the manufacturer and is displayed for infor- mational purposes only (cannot be user set).
  • Page 141 Operating the transmitter Connecting a Laptop Directly to the Transmitter If connecting to the VS1 directly with a laptop, you must set a static IP address on the VS1 and your laptop. 1. From the front panel UI’s Main Menu , go to User Settings -> Network Settings and set the IP address as follows: •...
  • Page 142 Nautel recommends that the following settings be entered/vetted by a qualified Network Administrator. By entering the VS1’s established IP address into an Internet browser’s address bar, and then logging into the AUI, you can view and edit the network parameters (see Figure 2.98).
  • Page 143 To configure the email feature, perform the following steps: 1. Enter the four fields, noting the following: • Email Server : In order to enter a server name (e.g., mail.nautel.com), at least one nameserver IP address must be entered (see Network Setup on page 2-111).
  • Page 144 VS1 Operations and Maintenance Manual Operating the transmitter • Transmitter Name : Set to a name that associates to the transmitter such as station identification (e.g., VS_WXYZ). This name will be included in notification emails. • Sender Email Address : Enter as a standard email address (e.g., a@b.com). This will be the sender address that notification email recipients will see.
  • Page 145 VS1 Operations and Maintenance Manual Operating the transmitter To configure the notifications feature, perform the following steps: 1. Pre-existing notifications are displayed in the Notifications list (e.g., “Audio Loss”. Click Add to create a new item for notification, click Update (after highlighting an existing item) to edit an existing item or click Delete to erase an item.
  • Page 146 It is used to filter E2X traffic in case multiple exporters are used in broadcast mode on a single LAN. 0.0.0.0 is also a valid configuration. • E2X Port - The exgine expects E2X on port 9000. Some non-Nautel Exporters utilize port 11000 instead. •...
  • Page 147 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.102: Exgine Settings - with VSHD installed only 4. When finished, press Apply to accept your entries or press Cancel to ignore your changes and exit this window. Issue 3.1 2013-10-01...
  • Page 148 VS1 Operations and Maintenance Manual Operating the transmitter SNMP configuration The SNMP configuration page provides a user with a means to configure the SNMP agent and the associated traps (see Figure 2.103). Figure 2.103: User Settings - SNMP Configuration - Agent Tab...
  • Page 149 VS1 Operations and Maintenance Manual Operating the transmitter Select the Enable Traps check box ( ) to allow the SNMP agent to send trap notifications. Enter the two additional fields as follows: • Trap Receiver IP: Enter the IP address of the computer to which the SNMP agent will send trap notifications.
  • Page 150 VS1 Operations and Maintenance Manual Operating the transmitter Critical parameters You can capture critical parameter data for the transmitter’s current state using the AUI’s Critical Parameters page (see Figure 2.105). To view this page, select Critical Parameters from the User Settings page.
  • Page 151 VS1 Operations and Maintenance Manual Operating the transmitter External 10MHz This setting (see Figure 2.106) allows users to employ the clock signal from a connected external 10MHz source in FM mode; the setting is unused in HD or FM+HD. When No is selected, the external 10MHz source will be ignored and the exciter's internal clock signal will be used.
  • Page 152 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.107: Front Panel - External 10 MHz Input screen Use the up or down arrow to toggle between ON (using external 10 MHz input) and OFF (not using external 10 MHz input), then press the accept (checkmark) button to save the change. Press cancel ( X ) to discard changes and return to the previous menu.
  • Page 153 2-127), the clock will set automatically and cannot be manually adjusted. Setting the Clock - Using the AUI You can remotely set the VS1’s time and date using the AUI’s Time Setup page (see Figure 2.109 on page 2-126) by selecting Time Setup from the User Settings options. The date and time setting is displayed in the upper, left corner of the AUI.
  • Page 154 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.109: User Settings - Time Setup The Time Setup option allows users to set the exact time and date information as well as regional and timezone settings for a transmitter location.
  • Page 155 VS1 Operations and Maintenance Manual Operating the transmitter Setting the Clock - Using the Front Panel When you select User Settings -> Set Clock from the Main Menu (see Figure 2.110) you can set the current time and date. The time appears on the top line of the top level screen (see Figure 2.4 on page...
  • Page 156 The accuracy of the NTP synchronization is related to the distance to the server. For this reason, Nautel recommends that you choose servers in the same country as the equipment. If this is not possible, attempt to connect to servers from the same continent.
  • Page 157 VS1 Operations and Maintenance Manual Operating the transmitter • Remote Name: Displays the host name of the referenced time source. An asterisk (*) in the first column marks the reference time source that is currently preferred by the NTP daemon.
  • Page 158 This data includes logs, alarms and meter readings which are then stored in a database and can be analyzed by Nautel staff if an alarm is reported by the transmitter. Since all data is pushed out to Nautel by the transmitter to the cloud, there is no need to reconfigure your firewall and potentially compromise your transmitters security.
  • Page 159 VS1 Operations and Maintenance Manual Operating the transmitter Setting call sign/ID The Call Sign/ID screen (see Figure 2.114) allows users to set a name that identifies the transmitter on the AUI. This identification will be displayed in brackets on the top transmitter banner of the AUI...
  • Page 160 VS1 Operations and Maintenance Manual Operating the transmitter Audio low thresholds This setting provides adjustable thresholds for the main audio source and SCA audio source (configurable timeout and trip level). These thresholds determine the limit for an associated low audio alarm to be activated. If the applicable audio source (main or SCA) level falls below the Trip Leve l setting (default is -22.5dB) for longer than the Timeout setting (default is 20 sec.), an alarm will...

  • Page 161: User Settings - Front Panel Ui

    The following Front Panel User Settings are detailed in their corresponding remote AUI or stand alone sections: Edit Presets, Remote I/O, Set Clock, Network Settings, Ext. 10MHz and Audio Processor. You can establish various user settings for the VS1 using the local front panel display. The following options are available: •...
  • Page 162 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.117: Pilot Sample Screen Use the up and down buttons to edit the pilot sample level between 0 and 2.70 V peak-to-peak (in 0.01 V increments). Press the accept (checkmark) button to save the change. Press cancel ( X ) to discard changes and return to the previous menu.
  • Page 163 VS1 Operations and Maintenance Manual Operating the transmitter This menu has four sub-menu options: • LCD Contrast - sets the display contrast. • LCD Backlight - sets the brightness of the display’s backlight during normal use. • LED Timeout - sets a time delay, after a period of non-use, that the brightness of the display’s backlight will dim.
  • Page 164 Signal Generator is only available using the front panel display. From the front panel UI, you can configure the test signal generator output of the VS1. Note that a different menu will appear depending on the currently configured test signal type. To view the Signal Gen screen, select User Settings ->...
  • Page 165 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.121: Signal Generator Editing Screens Select ON (enabled) or OFF (disabled). Press the cancel (X) button to discard changes and return to the previous menu. Default is OFF. Select a type - None, Sine Wave, Sine Sweep or Band limited Noise.
  • Page 166 Station ID settings are only available using the front panel display. In certain applications, the VS1 may be used as a translator to re-broadcast primary information as a secondary station on an alternate frequency. To allow the secondary station to be identified, you can set station ID parameters such as call sign, FSK deviation and repeat interval.
  • Page 167 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.123: Station ID Editing Screens Issue 3.1 2013-10-01 Page 2-139...
  • Page 168 VS1 Operations and Maintenance Manual Operating the transmitter Selecting FM Mask Note: The selecting FM Mask setting is only available using the front panel display. From the front panel UI, you can select the appropriate FM mask standard (FCC, ETSI or None) being used by the analyzer on the AUI.
  • Page 169 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.125: Audio Low Menu Use the up and down buttons to move the cursor to the desired line item and then press the right button to enable editing. Figure 2.126 on page 2-141 shows all possible editing screens for the Audio Low menu.
  • Page 170 VS1 Operations and Maintenance Manual Operating the transmitter Turn-On Delay Setting Note: Configuration of the Turn-On Delay setting is only available using the front panel display. From the front panel UI, you can set the transmitter’s turn-on delay. This setting determines the time delay for the transmitter to recover from an ac power loss.
  • Page 171 VS1 Operations and Maintenance Manual Operating the transmitter To view the Ramp-up Speed screen, select User Settings -> Ramp-up Speed from the Main Menu (see Figure 2.128). Figure 2.128: Ramp-up Speed Screen Use the up and down buttons to select a ramp-up speed between 1 and 100% (in 1% increments), noting 100% represents approximately seven seconds (0 W to full power).

  • Page 172: Configuring Remote Inputs And Outputs

    Remote I/O Settings - Using the Front Panel Display on page 2-151). Refer also to the VS1 Pre-installation Manual for information on remote inputs and outputs and their factory default settings. Remote I/O Settings - Using the AUI To view the Remote I/O page (see Figure 2.129), select Remote I/O from the Menu options.
  • Page 173 Nautel sets digital input defaults prior to shipping. See the VS1 Pre-installation Manual for details. Select the desired digital input (1 through 10) from the list. The Channel and Control settings for the selected input, as well as the current logic level (1 or 0), are displayed on the right-hand side of the page.
  • Page 174 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.130: Select a Remote (input window) Configure Input control logic - AUI You can configure the active/inactive control logic for each of the 10 digital inputs. Click the existing Logic bar to display the applicable drop-down menu options, which may include: •...
  • Page 175 2.131, you can configure up to 16 digital outputs that indicate either the presence of various alarms or the status of operator controlled circuits. Nautel presets the digital outputs prior to shipping. See the VS1 Pre-installation Manual for details. Figure 2.131: Digital Outputs Page Select the desired digital output (1 through 16) from the list.
  • Page 176 • Various Alarms . The active logic level indicates that the selected alarm is occurring. Any transmitter alarm can be selected as a digital output. Refer to the VS1 Troubleshooting Manual for a description of each alarm. Figure 2.132: Configure output control logic - AUI You can configure the active/inactive logic for each of the 16 digital outputs.
  • Page 177 VS1 Operations and Maintenance Manual Operating the transmitter • Output Low When RF Off . Logic ‘0’ (low) indicates the output is true (RF is off); Logic ‘1’ (high) indicates the output is false (RF is on). if the selected channel is Local/Remote , the drop-down options are: •...
  • Page 178 Analog outputs There are four analog outputs that can be remotely monitored (see Figure 2.133). These outputs are factory defined and are not user configurable. Refer to the VS1 Pre-Installation Manual for a list of these analog outputs. • Forward Power •...
  • Page 179 That setting can only be made by a local user using the front panel UI. Nautel sets digital input defaults prior to shipping. See the VS1 Pre-installation Manual for details. Figure 2.135: Remote Inputs Screens (Input 1 shown) Issue 3.1 2013-10-01...
  • Page 180 2.136), you can configure up to 16 digital outputs that indicate either the presence of various alarms or the status of operator controlled circuits. Nautel sets digital output defaults prior to shipping. See the VS1 Pre-installation Manual for details. Figure 2.136: Remote Outputs Screens (Output 1 shown) Page 2-152 Issue 3.1 2013-10-01...
  • Page 181 2.137), you can view the levels of four pre-defined analog outputs that are representative of critical transmitter parameters. Nautel sets analog output defaults prior to shipping. There are no configuration options. They are for monitoring purposes only. See the VS1 Pre-installation Manual for details.
  • Page 182 VS1 Operations and Maintenance Manual Operating the transmitter Use the up and down buttons to select the desired analog output (1 through 4) from the list. Each screen shows the analog output parameter (e.g., Forward Power, Reflected Power, Avg PA Volts or Total PA Current), as well as the meter reading (actual and full-scale) and the output pin voltage (actual and full-scale).

  • Page 183: Scheduler

    VS1 Operations and Maintenance Manual Operating the transmitter Scheduler If the scheduler is enabled (see Enabling the Scheduler on page 2-156), you can program a yearly preset schedule for the transmitter. Use the Scheduler page (see Figure 2.138) to set the dates and times at which presets take effect.
  • Page 184 VS1 Operations and Maintenance Manual Operating the transmitter When you click in the Rules list, you have the option to edit or delete an existing rule, or to create a new rule. Click the New or Edit button to display the Rule Explorer window (see Figure 2.139 on...
  • Page 185 VS1 Operations and Maintenance Manual Operating the transmitter When Scheduler: ON appears, the transmitter will follow the Scheduler settings. When S cheduler: OFF appears, the transmitter will stop following the schedule and the active preset will be the preset that was operating when the scheduler was disabled.

  • Page 186: Playlist Manager

    VS1 Operations and Maintenance Manual Operating the transmitter Playlist Manager The built-in audio player (see Figure 2.142) can use a file playlist, Livewire or Shoutcast as an audio source. These sources must be configured before they can be used. This section describes how to configure audio player sources.
  • Page 187 VS1 Operations and Maintenance Manual Operating the transmitter Playlist The Playlist tab (see Figure 2.143) displays the audio files and sequence that currently make up the playlist. Only audio files that are supported (e.g., .wav or .mp3 files) will be played. For .mp3 files, using files with bit rates equal to or less than 96 kbps achieves best audio results.
  • Page 188 VS1 Operations and Maintenance Manual Operating the transmitter The Available Files on USB section is used for adding audio files to the playlist ( Add Files button) or refeshing the playlist ( Refresh button) . Audio files must be stored on an external USB device plugged into the USB-A (A1J8B) or USB-B (A1J8C) connector on the rear of the controller;...
  • Page 189 Streams The Streams tab (see Figure 2.144 on page 2-160) of the VS1 is capable of playing audio streams in either Shoutcast or Livewire format. The audio player supports Shoutcast playlists and IP addresses for audio streams. For a Shoutcast playlist enter the URL for the station.
  • Page 190 2. If you are editing an audio stream, enter the appropriate information for the audio server (Name and URL for Shoutcast; Name and Channel for Livewire). Make sure the VS1 can access the location. 3. Click OK to either edit or delete the audio stream, or click Cancel to discard changes.

  • Page 191: Enabling And Operating The Orban Audio Processor

    If a discrepancy exists between the operational instructions in the Orban manual and this document, the latter shall prevail as this document is specific to operation with an VS1 transmitter. View the Orban Optimod-FM 5500 Digital Audio Processor Operating Manual online at: ftp://ftp.orban.com/5500/Documentation/...
  • Page 192 Audio processor configuration is only available using the front panel display. Configure the VS1 to recognize the presence of the Orban card using the front panel UI as follows: 1. With the transmitter turned on and in local mode of operation, navigate to the front panel UI's Main Menu ->...
  • Page 193 Orban Inside card is selected; however the other limiters (hard limiter, AGC limiter, 2-slope limiter) remain active. Nautel recommends that you set the thresholds for these other limiters high enough to ensure the signal is unaffected. These other limiters remain as a last resort to prevent over-modulation.
  • Page 194 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.148: Enabling the Orban Audio Processor - Front Panel UI Orban Enabling - Using the Remote AUI 1. With the transmitter turned on, connected to a remote monitoring PC or laptop and in remote mode of operation, navigate to the AUI's Main Menu ->...
  • Page 195 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.149: Enabling the Orban Audio Processor - Remote AUI Selecting an Orban Audio Processor Preset Select an Orban audio processor preset using either the front panel UI (see Selecting an Orban Preset...
  • Page 196 VS1 Operations and Maintenance Manual Operating the transmitter Selecting an Orban Preset - Using the Front Panel 1. From the User Settings -> Edit Presets -> (Select desired preset to edit) -> Main Audio > Audio Processor menu (see Figure 2.150), select Preset .
  • Page 197 VS1 Operations and Maintenance Manual Operating the transmitter Managing an Orban Audio Processor Preset Orban presets contain many audio processing settings, including stereo enhancement, AGC, EQ, final clipping and distortion. From the remote AUI (not available from the front panel UI), you can create Orban presets, manage their various settings and save the preset settings to a text file.
  • Page 198 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.153: Audio Processor Menu - Less More Tab Shown Slider bar Current Setting (green section) Adjustment Buttons Loading and Saving Orban Presets The left-hand side of the Audio Processor pages has four buttons (see below).
  • Page 199 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.154: Audio Processor meter window There are two types of Orban audio processor presets: factory presets and user presets. Factory presets, designated by an 'F' in the Load or Save screens, cannot be modified. When a factory preset control is changed, a new preset is automatically created.
  • Page 200 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.153 on page 2-170. Each control shows the current setting (in the middle of the control) and the available range of settings. You can make adjustments either by clicking on the << or >>...
  • Page 201 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.157: Audio Processor Menu - EQ tab Figure 2.158: Audio Processor Menu - Final Clipping tab Issue 3.1 2013-10-01 Page 2-173...
  • Page 202 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.159: Audio Processor Menu - Multiband tab Figure 2.160: Audio Processor Menu - Compressors Tab Page 2-174 Issue 3.1 2013-10-01...
  • Page 203 VS1 Operations and Maintenance Manual Operating the transmitter Figure 2.161: Audio Processor Menu - Bandmix Tab Issue 3.1 2013-10-01 Page 2-175...
  • Page 204 VS1 Operations and Maintenance Manual Operating the transmitter Page 2-176 Issue 3.1 2013-10-01...

  • Page 205: Routine Maintenance

    Inspecting lightning protection systems - see page 3-8 Scheduled maintenance Scheduled maintenance consists of performing a visual inspection of the VS1 at scheduled intervals. The recommended minimum time between scheduled maintenance visits is three months. Local operating and environmental conditions may dictate more frequent visits, while in remote sites, less frequent visits may be acceptable.
  • Page 206 VS1 Operations and Maintenance Manual Routine maintenance Checking hardware All hardware must be checked at least once a year. Nautel recommends more frequent checking if the VS1 is subjected to above average thermal cycling, caused by turning the VS1 on and off. •...
  • Page 207 VS1 Operations and Maintenance Manual Routine maintenance Figure 3.1: Air Filter Cleaning or Replacement Filter PVC retaining Grill plate Issue 3.1 2013-10-01 Page 3-3...

  • Page 208: Performing On-Air Checks

    Note: Nautel completes the Proof of Performance document with the transmitter operating at 98 MHz, terminated into a precision 50 ohm load. Measurements made at other operating frequencies may not yield the same readings.
  • Page 209 VS1 Operations and Maintenance Manual Routine maintenance Table 3.1: Expected Transmitter Meter Readings Meter Parameter Meter Value at ... (displayed on front panel UI 88 MHz 98 MHz 108 MHz or remote AUI Forward (forward power) 1250 W 1250 W...
  • Page 210 VS1 Operations and Maintenance Manual Routine maintenance Meter Parameter Meter Value at ... (displayed on front panel UI 88 MHz 98 MHz 108 MHz or remote AUI Delta 10 MHz IPA Fwd 63.7 W 74.9 W 79.6 W Total PA Curr 42.1 A...

  • Page 211: Replacing The Exciter/Control Pwb Battery

    Interval Every 12 months. Parts and tools Replacement battery: 3 V lithium coin cell, 20 mm (Nautel Part # BBLT01, Panasonic # CR2032). Procedure Perform the following steps to replace the battery: 1. Ensure ac power is being applied to the transmitter.

  • Page 212: Inspecting Lightning Protection Systems

    VS1 Operations and Maintenance Manual Routine maintenance Inspecting lightning protection systems You should inspect the lightning protection systems that are connected to your VS1 transmitter, ac power, RF feedline, antenna and tower periodically to ensure that your site, equipment and personnel are fully protected.

  • Page 213: Non-Standard Maintenance

    Menu / System Settings / Upgrade Software . Note the software version in the Current Version field i.e., 4.0.0.99. 2. Contact Nautel for the most recent software revision and download *.tgz file to a laptop or network location.
  • Page 214 VS1 Operations and Maintenance Manual Non-standard maintenance Transmitter IP configuration 1. From the transmitter AUI, go to Menu / User Settings / Network Settings . 2. Record your current network settings (IP Address, Subnet Mask, Default Gateway, etc.). 3. If connecting to the transmitter directly with a laptop, you must set a static IP address. This can only be done via the front panel interface.
  • Page 215 3. At the transmitter login screen enter: – User: “Nautel” or “****”, where **** is the user assigned user name – Password: leave blank (default) or “****”, where **** is the user assigned password 4. Navigate through the AUI to Menu / System Settings / Upgrade Software and press Manage Files/Browse .
  • Page 216 3. After a successful load (status is 100% complete and a message indicates a successful load), cycle the ac power (turn off, then on) on the VS1. 4. This completes the software upgrade. Restore the former network settings on the transmitter...

  • Page 217: Configuring An Audio Loss Backup Preset

    Non-standard maintenance Configuring an audio loss backup preset The VS1 contains an audio level detection circuit that can be used, when enabled, to allow switching to a secondary (backup) audio input source upon the loss of the primary source. Configure the...
  • Page 218 VS1 Operations and Maintenance Manual Non-standard maintenance Figure 4.2: Backup Preset Main Audio Screen 3. The setup page for the selected preset should now appear. Click the Main Audio tab (see Figure 4.2). 4. Click the Audio Source field’s drop-down arrow to view the available audio sources. Select the desired backup audio source.
  • Page 219 VS1 Operations and Maintenance Manual Non-standard maintenance Figure 4.3: Saving the Backup Preset Configuring the primary audio preset 1. Go to Menu / Presets / Load . The Load Preset window in Figure 4.1 shall display. 2. Select your primary or normal preset to allow editing of its audio loss parameters. Click Load .
  • Page 220 VS1 Operations and Maintenance Manual Non-standard maintenance Figure 4.4: Normal Preset - Other Audio screen Notes: SCA, RDS and Pilot modulation levels are additive and contribute the audio level. If their combined levels exceed the audio loss threshold level, a preset change will not occur.

  • Page 221: List Of Terms

    List of terms Section 5: List of terms This section defines some of the terms that are used in Nautel documentation. Audio Engineering Society/European Broadcasting Union (AES/EBU) is the name of a AES-EBU. digital audio transfer standard. The AES/EBU digital interface is usually implemented using 3-pin XLR connectors (the same type connector used in professional microphones).
  • Page 222 Look-Up Table. LUT. Refers to the multiplexed baseband signal. Also referred to as the composite signal. MPX. A setting that controls power level, frequency and audio parameters. The VS1 allows you to Preset. pre-program multiple presets. Printed Wiring Board. PWB.

  • Page 224: Issue 3.1 2013-10-01

    Phone: +1.902.823.3900 or Fax: +1.902.823.3183 Nautel Inc. 201 Target Industrial Circle Bangor, Maine USA 04401 Phone: +1.207.947.8200 Fax: +1.207.947.3693 Customer Service (24-hour support) +1.877.628.8353 (Canada & USA only) +1.902.823.5100 (International) Email: support@nautel.com Web: www.nautel.com © Copyright 2012 NAUTEL. All rights reserved.

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