Nautel GV5 Operation & Maintenance Manual
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Nautel GV5 Operation & Maintenance Manual

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3: OPERATIONS & MAINTENANCE
MANUAL
GV5/GV3.5
T
RANSMITTER
Document ID:
NHB-GV3.5-GV5-OPS
Version:
0.2
Issue Date:
2014-07-23
Status:
Preliminary
Making Digital Radio
Work

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  • Page 1 3: OPERATIONS & MAINTENANCE MANUAL GV5/GV3.5 RANSMITTER Document ID: NHB-GV3.5-GV5-OPS Version: Issue Date: 2014-07-23 Status: Preliminary Making Digital Radio Work...

  • Page 3: Contact Information

    For verification of materials, the reader is encouraged to consult the respective manufacturer's most recent publication on the official website or through contact with Customer Service. © Copyright 2013 NAUTEL. All rights reserved. VERSION 0.2 2014-07-23 PAGE III...

  • Page 5: Table Of Contents

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL TABLE OF CONTENTS CONTENTS Contact Information 3.iii RELEASE CONTROL RECORD 3.vii Description 3.1.1 Ac-Dc Power Stage 3.1.1 Control/Monitor Stage 3.1.3 RF Drive Stage 3.1.4 RF Power Stage 3.1.5 Operating the Transmitter 3.2.1 User Interface Options 3.2.4...
  • Page 6 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL TABLE OF CONTENTS Enabling and Operating the Orban Audio Processor 3.2.196 Routine Maintenance 3.3.1 Scheduled Maintenance 3.3.1 Replacing an Air Filter 3.3.3 Performing On-Air Checks 3.3.6 Replacing the Controller Module’s Battery 3.3.7 Inspecting Lightning Protection Systems 3.3.9...

  • Page 7: Release Control Record

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL RELEASE CONTROL RECORD ISSUE DATE REASON 2013-04-04 Preliminary Release of GV5/GV3.5 (NARF71A/02) 2014-07-23 Updated Section 2: Operating the Transmitter for software version 4.1; added information for Xmtr PA Bias routine VERSION 0.2 2014-07-23 PAGE 3.VII...
  • Page 8 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL PAGE 3.VIII VERSION 0.2 2014-07-23...

  • Page 9: Description

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL DESCRIPTION SECTION 3.1: DESCRIPTION This section provides a high-level description of the transmitter’s key sections. The transmitter circuitry is subdivided into four basic stages:  Ac-Dc Power Stage  Control/Monitor Stage - see page 3.1.3 ...
  • Page 10 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL DESCRIPTION Power Supply Interface PWB See electrical schematic Figure SD-1. The power supply (PS) interface PWB (A1): interfaces between the ac input on terminal block TB1 and the LVPS and power supply  modules. ...

  • Page 11: Control/Monitor Stage

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL DESCRIPTION Control/Monitor Stage See electrical schematic Figure SD-2. The control/monitor stage performs many critical functions for the transmitter. It:  contains monitoring and protection circuits to prevent transmitter damage under adverse or fault conditions, including high speed SWR protection and interlock/muting.

  • Page 12: Rf Drive Stage

    Exciter A (A5) and B (A6, optional) are the RF drive sources for the transmitter. They accept the external audio program information (see the GV5/GV3.5 Pre-installation Manual for details on various program input types). For dual exciter applications, the exciters’ main/standby operation is controlled using the local (or remote) AUI or the controller UI.

  • Page 13: Rf Power Stage

    See electrical schematic Figure SD-34. Each of the two RF power modules provides up to 3000 W (for GV5) or 2250 W (for GV3.5) of RF output power. Each module contains four power amplifier (PA) PWBs (A1 through A4), a splitter/interface PWB (A5), combiner PWBs (A6 and A7), and six cooling fans. The intermediate RF drive outputs from the RF drive stage are applied to the RF power modules via the module control/interface PWB (A3).
  • Page 14 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL DESCRIPTION Module Control/Interface PWB See also electrical schematics Figures SD-9 through SD-16. The module control/interface PWB: interfaces with all RF power module inputs and outputs, except for the RF output.  interfaces between the controller module (A4) and the rest of the transmitter, distributing ...
  • Page 15 RF monitor PWB A3 provides a nominal 1.6 V (GV5) or 1.3 V (GV3.5) rms [at 5 kW (GV5) or 3.75 kW (GV3.5)] signal at A3J1, which is applied to the panel mount connector (W8J1) behind the front door. This can be used with a modulation monitor or spectrum analyzer.
  • Page 16 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL DESCRIPTION PAGE 3.1.8 VERSION 0.2 2014-07-23...
  • Page 17 STREAMING DATA (A) EXCITER SERIAL (A) AUDIO MUTE (A) RF DRIVE (A) MODULE LVPS CONTROL/INTERFACE STREAMING DATA (B) EXCITER SERIAL (B) (OPTIONAL) AUDIO MUTE (B) RF DRIVE (B) B2190087 V1 Figure 3.1.1: GV5/GV3.5 Transmitter Block Diagram PAGE 3.1.9 VERSION 0.2 2014-07-23...
  • Page 18 PAGE 3.1.10 VERSION 0.2 2014-07-23...

  • Page 19: Operating The Transmitter

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER SECTION 3.2: OPERATING THE TRANSMITTER This section provides information about operating the GV5/GV3.5 transmitter:  User Interface Options - see page 3.2.4 Advanced User Interface (AUI) - see page 3.2.9 – Controller Front Panel - see page 3.2.17 –...
  • Page 20 Email Configuration - see page 3.2.143 – Notifications - see page 3.2.145 – Configuring Exgine Settings - see page 3.2.147 – Nautel Phone Home - see page 3.2.149 – SNMP Configuration - see page 3.2.150 – Capturing Critical Parameters - see page 3.2.152 –...
  • Page 21 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  User Settings - Controller UI - see page 3.2.166 (additional settings to those included under AUI) Setting Pilot Sample Level - see page 3.2.167 – Configure Test Signal Generator - see page 3.2.168 –...

  • Page 22: User Interface Options

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER User Interface Options The user can interface with the GV5/GV3.5 using one of four methods:  Locally, using the 17-inch front panel touch screen AUI (advanced user interface) (see Advanced User Interface (AUI), on page 3.2.9).
  • Page 23 Network Setup Logs (see 3.2.137) (see 3.2.27) Hardware Configuration Email Configuration FM Polarity Notifications Exgine Settings Audio Input Calibration Nautel Phone Home Remote I/O SNMP Configuration Remote Inputs (see 3.2.173) Critical Parameters Remote Outputs External 10MHz Analog Outputs Spectrum Mask...
  • Page 24 Controller UI Main Menu Top Level (see 3.2.18) Status Screen Select Preset (see 3.2.62) User Settings Edit Presets (see Fig. 3.2.2) Set Clock (see 3.2.158) Network Settings (see 3.2.141) View Status View Alarms (see 3.2.36) Pilot Sample (see 3.2.167) View Meters (see 3.2.57) Signal Gen (see 3.2.168) View Log (see 3.2.36) Ext.
  • Page 25 Controller UI Select Preset to Edit Presets Edit or Create New Preset RDS Settings Enable (see 3.2.86) Output Power Data Source (see 3.2.76) Baud Rate Frequency RDS Level (see 3.2.76) RDS Phase PS Name IBOC Mode (see 3.2.76) DPS Name Scroll Speed IBOC Settings Lower IBOC Inj...

  • Page 26: Advanced User Interface (Aui)

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Advanced User Interface (AUI) The GV5/GV3.5 has an advanced user interface (AUI) that is displayed on a 17-inch, colour LCD screen mounted on the front of the transmitter (see Figure 3.2.4). You can access the AUI: ...
  • Page 27 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Logging into the AUI The transmitter’s AUI provides a means to restrict local and remote access to transmitter control functions to authorized users only. Users can create accounts that can be pre-defined to set access restriction from view-only (no control), full control (all permissions), custom (select permissions) and administrative control.
  • Page 28 In the User field, enter the username. Default is “Nautel”.  In the Password field, enter the password. Default is blank. : The Nautel AUI is factory configured with a default login username and password. Nautel NOTE recommends that you change the password to improve overall system security. See...
  • Page 29 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Describing the AUI Layout The AUI begins with the Home page and all further navigation will start from this screen (see Figure 3.2.6 on page 3.2.14). Any user can view the AUI pages on the front panel of the transmitter, regardless of the login status;...
  • Page 30 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER List of AUI Pages Table 3.2.1 defines the available AUI pages. Table 3.2.1: AUI Pages AUI Page Function See Page Home View meters, tool menu panels, choose options and navigate to other pages.
  • Page 31 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Each AUI page provides information about a specific transmitter function. All navigation through the AUI pages begins on the main screen shown in Figure 3.2.6 on page 3.2.14. Figure 3.2.6: Using the AUI...
  • Page 32 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  Exciter : Displays the active exciter and the peak (red) FM modulation value. Press in the Active Exciter field to shortcut to the Changeover page. The active exciter is displayed in the top, right...
  • Page 33 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER The displays between the top and bottom menus, contains user selected pages. These pages provide access to a variety of AUI functions such as transmitter status and hardware settings. The following paragraphs describe how to use these pages.

  • Page 34: Controller Front Panel

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Controller Front Panel The controller’s front panel has a user interface (UI) featuring a 4 x 20 character graphic LCD display (see Figure 3.2.9 on page 3.2.18). The UI can be controlled by its adjacent keypad. The UI contains a menu-based series of pages that serve specific functions.

  • Page 35: Main Menu

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Main Menu This main menu is the starting point for navigating through the UI screens. See Table 3.2.2 on page 3.2.20 for a list of screens and their basic functions. Figure 3.2.9: Main Menu...
  • Page 36 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER LEDs There are four LEDs on the left-hand side of the LCD display that provide the operational status of various sections of the transmitter - Exciter Power Amplifier Output Network Power  (see Figure 3.2.9 on page 3.2.18).
  • Page 37 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Controller UI Screens Table 3.2.2 defines the available UI display screens on the controller module. Table 3.2.2: Controller UI Screens Controller UI Screen Function See Page page 3.2.18 Main Menu Choose options and navigate to other screens.
  • Page 38 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Table 3.2.2: Controller UI Screens Controller UI Screen Function See Page page 3.2.95 User Settings - Edit Presets - Edit the selected preset’s modulation loss functionality, such as enable/ Mod Loss disable, setting threshold, setting timeout period, setting resulting action and selecting a backup preset.
  • Page 39 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Table 3.2.2: Controller UI Screens Controller UI Screen Function See Page View Status - View SW View the versions of software installed on the transmitter. Versions page 3.2.98 Reset Alarms Initiate an attempt to reset all alarms controlled by latched protection circuits.
  • Page 40 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Table 3.2.2: Controller UI Screens Controller UI Screen Function See Page page 3.2.124 System Settings - FM Polarity Set the polarity for FM deviation; positive modulation signal yields positive frequency deviation or negative modulating signal yields positive frequency deviation.

  • Page 41: Home Page

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Home Page The Home page (see Figure 3.2.11) is the first screen to appear when you login into the AUI. You can return to the page, from any screen, by pressing on the logo (upper left corner) or by pressing Home Menu >...
  • Page 42 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Menu Page - Describing Transmitter Operations From the Home Page, press the Menu button to view the Menu page (see Figure 3.2.12). The Menu page displays icons that link to pages that control various transmitter operations.
  • Page 43 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  Select Home to return to the home page (see Home Page, on page 3.2.24).  Select Presets to load, edit, or save presets (see Presets - Editing Operational Settings, on page 3.2.60).

  • Page 44: Viewing Transmitter Log

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing Transmitter Log You can view transmitter log information using the AUI (see Transmitter Log - Using the AUI) or using the controller UI display (see Transmitter Alarms and Log - Using the Controller UI, on page 3.2.36).
  • Page 45 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.13: Logs Page Page number of displayed page first page page-by-page row-by-row row-by-row page-by-page last page Navigate through the table using these arrows Viewing Event Logs page displays a “read only” chronological table of log events under the following column...
  • Page 46 Pressing the Log Manager button on the Logs page will provide access to this window (see Figure 3.2.15 on page 3.2.30). Refer to the GV5/GV3.5 Troubleshooting Manual to cross-reference the alarm name to possible causes and troubleshooting tips. VERSION 0.2 2014-07-23...
  • Page 47 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Understanding the Log Manager Window The Log Manager window contains the functions that edit the logs listed in the page. Press the Logs Log Manager button to open a configurable window with the following display options identified by...
  • Page 48 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Filtering Logs You can filter transmitter events based on their origin or date by pressing the button in Filter Logs the Log Manager (see Figure 3.2.16 on page 3.2.31). Press the Select a Device drop-down arrow, and select the desired device type to filter events based on the type selected.
  • Page 49 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Copying Logs Using the remote AUI only. you can create a copy of all the logs in the selected list (copied to the remote user’s computer clipboard) by pressing the Copy Logs button in the Log Manager (see Figure 3.2.17).
  • Page 50 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Deleting Logs You can delete all events or a selection of events by pressing the Delete button in the Log Manager (see Figure 3.2.18).  Delete by date - activates the calendar and clock (24-hour clock) where users can press the arrows to establish a date and time.
  • Page 51 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing Log Statistics You can view statistical information on the events being displayed by pressing the Statistics button in the log manager (see Figure 3.2.19). Only events subject to the filtering parameters are displayed on the Statistics screen.
  • Page 52 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing the Legend Press the Legend button in the Log Manager (see Figure 3.2.20) to display a legend that describes the symbols shown in the State and Severity columns of the Logs page. Press OK or Cancel to close this window and return to the Transmitter Log page.
  • Page 53 When you select View Status -> View Alarms or View Status -> View Log from the Main Menu (see Figure 3.2.21), you can view various active or logged events, respectively, of the GV5/GV3.5. These parameters are likely displayed on multiple pages and require that you scroll to view all of them.

  • Page 54: Viewing Tool Menu Panels

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing Tool Menu Panels The center area of the AUI’s Home page displays up to four panels of instrument information. Users can choose the panels for display from 11 possible instrument panels (depending on purchased options).
  • Page 55 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER To view the Tool Menu options (see Figure 3.2.22 on page 3.2.37), close an existing panel by pressing X in the upper, right corner and then press the icon in the blank space. Select an icon to display that panel.
  • Page 56 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing Instrument Panels Each instrument panel has a menu bar that may be different from other panels (see Figure 3.2.23). Figure 3.2.23: Instrument Panel Menus Backward one step Forward one step Maximize / Minimize...
  • Page 57 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.24: Instrument Cursor Manipulation Cursor Tools to move cursor and display information Figure 3.2.25: Instrument Panel - Expansion Example Maximize/Minimize buttons PAGE 3.2.40 VERSION 0.2 2014-07-23...
  • Page 58 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 59 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Use the left and right buttons to make fine adjustments. Use the maximize or minimize buttons as required. Use the “peak” button to place the cursor on the next successive peak (moving left to right) in the spectrum.
  • Page 60 OPERATING THE TRANSMITTER Equalizer Screens The GV5/GV3.5’s exciter includes a fixed equalizer to optimize audio perfomance. 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. All frequencies shown are relative to the channel frequency.
  • Page 61 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.29: EQ Impulse Response Time Unit is us (microseconds) EQ Impulse Response Figure 3.2.29. This panel displays the impulse response of the modulator’s EQ filter in the time domain. This is a static display tool so the screen image is not fluid and will not change.
  • Page 62 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.30: EQ Filter Delay EQ Filter Delay Figure 3.2.30. This panel displays the delay of the modulator’s EQ filter across its bandwidth. Click or touch 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 63 Oscilloscope Figure 3.2.31. The GV5/GV3.5’s exciter includes an oscilloscope to allow monitoring of audio input parameters. The oscilloscope displays a real-time waveform for the selected audio input (e.g., L/R audio input). The audio input(s) being monitored is displayed in the upper, left-hand corner of the panel (e.g., R in green, L in blue for L/R audio input.) The limits for the amplitude axis (volts/division) and time axis...
  • Page 64 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.32: Measurement Source Settings Use the ‘stop’ button to display a snapshot of the waveform for analysis, printing, etc. Use the ‘play’ button to resume the live, real-time display of the waveform.
  • Page 65 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER AM-AM and AM-PM Correction Screens When the transmitter is operating with digital carriers, the exciter linearizes the transmitter’s RF drive signal by performing adaptive pre-correction. There are two correction parameters - AM-AM...
  • Page 66 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.34: AM-PM Correction AM-PM Correction This panel displays the phase correction being applied to the RF drive signal in order to compensate for the transmitter’s (exciter +PA stage) phase non-linearity versus the output power. For example, in Figure 3.2.34...
  • Page 67 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.35: Signal Constellation Signal Constellation Figure 3.2.35. 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 68 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.36: Lissajous Plots L and R mode I and Q mode Lissajous Plot Figure 3.2.36. 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 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.37: Power Distribution Plot Power Distribution Plot Figure 3.2.37. 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. The data is plotted in the Power Distribution Plot as a CCDF (complementary cumulative distribution function).

  • Page 70: Viewing Real-Time Meters

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing Real-Time Meters You can view meters using the AUI (see Viewing Real-Time Meters - using the Controller UI, on page 3.2.57) or using the controller UI (see Viewing Real-Time Meters - using the Controller UI, on page 3.2.57).
  • Page 71 GV5/GV3.5 OPERATIONS & 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 3.2.38). 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 72 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Identifying Meter Information on a Specific Sub-device Open the Meters List View window and select one of the desired transmitter sub-devices.  Controller  Exciter A or B  Rack - Multiple racks supported ...
  • Page 73 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Saving a Meter List Meter lists are associated with user accounts. Lists saved in this screen are only displayed in the NOTE 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 74 Figure 3.2.42) you can view various metered parameters of the GV5/GV3.5. These parameters are divided into sections. When you select a particular section, the applicable meters are displayed as a list on the appropriate screen. The View Meters screens are for viewing purposes only and do not offer the same level of NOTE analytical features as the AUI’s Meter List View page (see...
  • Page 75 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Controller: RMS Forward Power +12 V B Reject 13-16 Power, as applicable FM Forward Power Reject 1-8 Power, as applicable IBOC Forward Power +3.3V Reject 9-16 Power, as applicable Reflected Power +1.8V...
  • Page 76 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Rack # (1 through 8, as applicable): Rk +15V Rk LVPS Rk +5V Rk Ambient Temperature Rk +3.3V Rk Reject Fan Voltage RF Module (PM1, repeat for PM2): PM1 Drive Power PM1 PS A Input Voltage...

  • Page 77: Presets - Editing Operational Settings

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Presets - Editing Operational Settings You can manage presets using the AUI (see Managing Presets - using the AUI) or using the controller UI (see Managing Presets - using the Controller UI, on page 3.2.74).
  • Page 78 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Editing or Creating Presets When a presets page is opened from the menu, (for example see Figure 3.2.43 on page 3.2.60), the Current Settings of the transmitter are displayed. They define the current operational state of the transmitter.
  • Page 79 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Loading Presets When first entering the Presets page, the current “active” preset is displayed (see Figure 3.2.43 on page 3.2.60). 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 80 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Understanding the Preset Tabs The Presets page consists of tabs across the top with functions on the left-side and parameters displayed in the center and right-side of the window. A separate display appears for each of the...
  • Page 81 Spectrum/Efficiency Optimizer, on page 3.2.108 Optimizing HD Parameters, on page 3.2.118). 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. When enabled, selection options are Priority: Efficiency and Priority: MER.
  • Page 82 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.45: Presets - Main Audio VERSION 0.2 2014-07-23 PAGE 3.2.65...
  • Page 83 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Main Audio - (see Figure 3.2.45 on page 3.2.65  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 (see below).
  • Page 84 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.46: Presets - SCA SCA - (see Figure 3.2.46  MPX SCA: Connector (J7:A for SCA1, J7:B for SCA2) for use with an externally generated SCA; select Enabled or Disabled. When enabled, all the selections listed below are active.
  • Page 85 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.47: Presets page - RDS tab (upper and lower sections) UPPER SECTION LOWER SECTION Refer to FCC guidelines for allowable modulation depth with SCAs or RDS enabled. NOTE PAGE 3.2.68 VERSION 0.2 2014-07-23...
  • Page 86  Data Source: select Internal, Ext. ASCII, Ext. UECP, ASCII Over IP, UECP Over IP. : For ASCII over IP data, for ASCII Over IP data, send RDS information to the IP address of the GV5/ NOTE GV3.5, port 7005.
  • Page 87 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  Radio Text: Most RDS radios can receive short messages that may include information about the presenter, station or program you are listening to. (e.g., a web address for the station). You can enter a radio text up to 64 characters scroll. This selection applies to internal data sources only.
  • Page 88 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.48: Presets page - Other Settings tab (upper, middle and lower sections) UPPER SECTION MIDDLE SECTION LOWER SECTION VERSION 0.2 2014-07-23 PAGE 3.2.71...
  • Page 89 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Other Settings - (see Figure 3.2.48  Other Settings: Provides the following sub-functionality:  Pilot Level: enter value between 6 and 12 % (typically 9 %). This level is added to the composite baseband signal.
  • Page 90 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  AGC Limiter: select Enabled, then enter AGC Limit percentage (allowable range is 0-160%, defaulted to 120%) and Time Constant (allowable range is 0-1000 ms, defaulted to 0 ms). 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 91 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Managing Presets - using the Controller UI The Presets page (see Figure 3.2.43) allows users with the appropriate permissions to view operational data (power level, frequency, mode, program input characteristics), plus create and control preset settings.
  • Page 92 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Editing or Creating Presets When you select User Settings -> Edit Presets from the Main Menu (see Figure 3.2.50) you can create up to 63 operating presets or edit existing presets. Figure 3.2.50: Edit Preset screen...
  • Page 93 For analog only transmitters [FM (analog) mode only], the maximum power setting is 5.5 kW (for GV5) or 4.15 kW (for GV3.5) and the minimum power setting is 0.15 kW (for both GV5 and GV3.5). Press the cancel ( X ) button to discard changes and return to the previous menu.
  • Page 94 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER IBOC mode options include:  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 95 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.56. When you select IBOC Settings from the Preset editing options IBOC Settings. screen, you can edit various IBOC parameters Figure 3.2.56: IBOC Settings menu Use the up and down buttons to scroll through the IBOC settings options, then press the accept (checkmark) or right arrow button to enter the selected editing screen.
  • Page 96 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.57: IBOC Settings editing screens For FM+HD and HD modes, use the up and down buttons to select a value 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 97 GV5/GV3.5 OPERATIONS & 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 3.2.58). Figure 3.2.58: 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 98 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.59: Main Audio editing screens Use the up and down buttons to locate the desired audio source - MPX, Analog L/R, MPX Over AES, Audio Player -> AES 2, Audio Player ->...
  • Page 99 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.60: Input Levels editing screens Use the up and down buttons to select a level between -12 and 12 dBu (in 0.1 dBu increments) 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 100 GV5/GV3.5 OPERATIONS & 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 3.2.62). Figure 3.2.62: 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 101 GV5/GV3.5 OPERATIONS & 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 3.2.64). Figure 3.2.64: 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 102 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.66: Internal SCA1 and SCA2 editing screens Use the up and down buttons 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 103 GV5/GV3.5 OPERATIONS & 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 3.2.67). Figure 3.2.67: 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 104 Default setting is UECP. NOTE For an ASCII Over IP data source, RDS information should be sent to the IP address of the GV5/GV3.5, port 7005. NOTE For title/artist functionality, the GV5/GV3.5 supports the radiotext (RT) data type, using the UECP or Ext. ASCII data source.
  • Page 105 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.69: RDS Settings editing screens (2 of 3) Enter an 8-character name. Use the right and left arrows to move the cursor to the desired character. Use the up and down arrows to edit the character, then press the accept (checkmark) button to save the change.
  • Page 106 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.70: RDS Settings editing screens (3 of 3) Use the up and down arrows to select Music or Speech, 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 107 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.71: DI Code 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 108 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER When you select Limiter Settings from the Preset editing options screen, you can Limiter Settings. edit various limiter parameters (see Figure 3.2.73). Figure 3.2.73: Limiter Settings menu Use the up and down buttons to move the cursor to the desired limiter and then press the right button...
  • Page 109 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.74: Hard 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 110 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.76: 2-Slope 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 111 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.77: 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 112 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.78: 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 113 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.80: Mod Loss editing screens Determines whether the audio loss feature is used. Use the up and down arrows to select ON (enable) or OFF (disable), then press the accept (checkmark) button to save the change.
  • Page 114 GV5/GV3.5 OPERATIONS & 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 3.2.81). Figure 3.2.81: Audio Delay menu Use the up and down buttons to change the audio delay setting between disabled (= 0 s) and any time period to a maximum of 13 seconds (in 1 us steps), then press the accept (checkmark) button to save the change.

  • Page 115: Resetting Alarms

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Resetting Alarms You can attempt to reset any latching transmitter alarms that are holding the transmitter in an “off-air” state using the remote AUI’s Reset button (see Resetting Alarms, on page 3.2.100) or using the controller’s UI display (see...

  • Page 116: Viewing Transmitter Status - Using The Aui

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing Transmitter Status - using the AUI You can view the GV5/GV3.5’s operational status using the Transmitter Status page - see Figure 3.2.84. This page shows current active alarms and status to aid in fault diagnosis. To view the Transmitter Status page, select Status from the AUI bottom banner.
  • Page 117 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Viewing Alarm Details Transmitter Status page - see Figure 3.2.84 page 3.2.99 displays a table that lists the active alarm details under the following columns:  Device - identifies the alarms by their originating device (e.g., Controller, Exciter A, Rack, etc.) ...

  • Page 118: System Settings

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER System Settings Users can determine critical system configuration parameters using the AUI (see System Settings - using AUI) or using the controller UI (see System Settings - using the Controller UI, on page 3.2.113)
  • Page 119 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Reset The Reset page (see Figure 3.2.87) allows users to reboot three items - the AUI, the active exciter and the standby exciter (if installed). Figure 3.2.87: System Settings - Reset ...
  • Page 120 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Upgrade Software The Upgrade Software page (see Figure 3.2.88) allows for uploading a suite of software upgrade files (.tgz files) via remote connection. Navigate the page as described below. Note that users cannot add upgrade files via the local AUI touchscreen.
  • Page 121 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  Manage Files (available through the remote AUI only): opens a window displaying the files you can upload to upgrade the software. You can add or delete files from this list using the Browse, Upload and Delete buttons in the window.
  • Page 122 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Exciter TCXO The Exciter TCXO page (see Figure 3.2.89) allows users to calibrate the internal clock to a user supplied external high precision 10 MHz clock reference (e.g. GPS synchronized 10 MHz clock). Once this external 10 MHz clock reference is connected, the 10MHz Int-Ext Offset field will display the difference between the internal and external frequencies (in ppm).
  • Page 123 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER IBOC Settings The IBOC Settings page (see Figure 3.2.90) 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 124 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.90: System Settings - IBOC Settings : You can also establish IBOC settings using the controller UI (see IBOC Settings, on page 3.2.78). NOTE VERSION 0.2 2014-07-23 PAGE 3.2.107...
  • Page 125 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Spectrum/Efficiency Optimizer The Spectrum/Eff. Optimizer page (see Figure 3.2.91) allows users to optimize the transmitter’s spectrum and/or efficiency by adjusting the following parameters:  Optimization Enabled - Select Yes or No. Selecting Yes allows the optimizer to adjust the PA voltage setting to maximize efficiency based on the transmitter output spectrum.
  • Page 126 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Hardware Configuration The Hardware Configuration page (see Figure 3.2.92) allows configuration of the transmitter for any installed hardware that has optional variations (e..g, quantity of exciters or LVPS modules, fan speed) or is non-standard (e.g., UPS or audio processor).
  • Page 127 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.92: System Settings - Hardware Configuration  UPS Installed: Select Yes if a UPS interface kit is installed in the transmitter to allow operation with an external, user-provided UPS. Select No if there is no UPS interface kit installed. If you have upgraded your transmitter with the UPS interface, you may have already been prompted to change this configuration.
  • Page 128 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER FM Polarity The FM Polarity page (see Figure 3.2.93) allows users to invert the polarity of the frequency modulation (i.e., positive going modulation signal yields positive deviation; or positive going modulation signal yields negative deviation). Options are Normal (default) or Inverted .
  • Page 129 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Audio Input Calibration : Audio inputs are factory set using a high accuracy source and do not typically require user NOTE adjustment. Changes to factory calibrations could cause low or excessive modulation and non- compliance to strict regulatory limits.
  • Page 130 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER System Settings - using the Controller UI WARNING! System settings are established at Nautel and should not require any adjustment. Making changes to these settings may void your warranty. Contact Nautel before making changes.
  • Page 131 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Resetting the Single-Board Computer (SBC) : An SBC reset is available using the controller UI. It can also be performed from the AUI, using the NOTE Reboot AUI button on the Reset page (see Reset, on page 3.2.102).
  • Page 132 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Updating Firmware : A firmware update is available using the controller UI. It can also be performed from the AUI, NOTE using the Upgrade Software page in the System Settings menu (see Upgrade Software, on page 3.2.103).
  • Page 133 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Use the up and down buttons to move the cursor to the desired display setting and then press the right button to enable editing of the setting. Figure 3.2.99 on page 3.2.116 shows the editing screens for the LCD Settings menu.
  • Page 134 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Setting Exciter TCXO Offset : You can also adjust the exciter TCXO offset value using the AUI (see Exciter TCXO, on page NOTE 3.2.105). To view the conroller UI’s Exc TCXO screens (see Figure 3.2.100), select System Settings ->...
  • Page 135 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Optimizing HD Parameters : You can also optimize the digital signal (spectrum mask) using the AUI (see Spectrum/Efficiency NOTE Optimizer, on page 3.2.108). From the controller’s UI, you can enable and configure various HD signal parameters (e.g., injection level, TPO, etc.) in an attempt to optimize the digital signal’s overall efficiency.
  • Page 136 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.102: HD Optimizer Screens Select ON to allows the optimizer to adjust the PA voltage setting to maximize efficiency based on the transmitter output spectrum. Depending on other settings in this section, it may require other actions to maintain the transmitter’s...
  • Page 137 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Configuring Installed Hardware : You can also configure transmitter hardware using the AUI (see Hardware Configuration, on page NOTE 3.2.109). From the controller’s UI, you can configure the transmitter for any installed hardware that has optional variations (e..g, quantity of exciters or LVPS modules, fan speed) or is non-standard (e.g., UPS or audio...
  • Page 138 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Installed Exciter : You can also adjust the Installed Exciter setting using the AUI (see Hardware Configuration, on NOTE page 3.2.109). From the controller UI, you can configure the transmitter for the number of installed exciters. If you have upgraded your transmitter to dual exciters, you may have already been prompted to change this configuration.
  • Page 139 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER LVPS Voltage : You can also adjust the LVPS Voltage setting using the AUI (see Hardware Configuration, on page NOTE 3.2.109). From the controller UI, you can set the default LVPS voltage. The transmitter will set the LVPS voltage to this value (between 35 and 53 V, in 1 V steps) during normal operation.
  • Page 140 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.107: Fan Speed Screen Use the up and down buttons to select a value between 63 and 100 %. The default setting is 63%, which corresponds to approximately 31 V for the related fan voltage. A setting of 100% corresponds to approximately 48 V for the related fan voltage.
  • Page 141 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER FM Polarity : Adjusting FM polarity is used to synchronize transmitters for a single-frequency network. It NOTE determines whether positive audio input results in positive or negative modulation. You can also adjust...
  • Page 142 Changing values in the System Settings -> Factory Settings menu is not normally required, and should only be performed by trained personnel. Information on some of these sub-menus is not included in the manual. Contact Nautel for assistance. From the controller’s UI, you can adjust various factory settings such as critical parameter thresholds, calibration values, exciter power level, etc.
  • Page 143 WARNING! Threshold settings are established at the factory and should not require any adjustment. These settings affect critical system protection circuits. Making changes to these settings may void your warranty. Contact Nautel before making changes. From the controller’s UI, you can set alarm thresholds for critical parameters. To view the Thresholds...
  • Page 144 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Calibration : Most of the Calibration settings are only available using the controller UI. Calibration of audio NOTE related parameters (see Figure 3.2.112) can also be performed using the AUI (see Audio Input Calibration, on page 3.2.112).
  • Page 145 : Forward power (Fwd Cal), reflected power (Refld Cal), RF Drive, exciter forward (Exc Fwd) and NOTE exciter reflected (Exc Rfld) calibrations are performed at the factory and should not require user adjustment. Contact Nautel for assistance, if necessary. PAGE 3.2.128 VERSION 0.2 2014-07-23...
  • Page 146 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Exciter Power : The exciter power setting is only available using the controller UI. NOTE From the controller UI, you can set the exciter’s power level at 98 MHz. To view the Exciter Power screen, select System Settings ->...

  • Page 147: User Accounts

    First-Time Login, on page 3.2.133 Figure 3.2.115: User Accounts page The GV5/GV3.5 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 148 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Setting User Permission Level There are four levels of permission that can be assigned to users, each with their own specific function. All users have permission to change their own username and password, but are otherwise limited to the following functions: ...
  • Page 149 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Changing the Password To change your password, press the Change Password button. A menu appears that prompts you to enter the old password, new password and confirmation of the new password. Press Apply to save or Cancel to exit this menu (see Figure 3.2.116 on page...
  • Page 150 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: Login to the AUI using the default Username (“Nautel”) and Password (blank). Set up your own Administrator account, with your desired Username and Password.

  • Page 151: Changing Exciter Transfer Settings

    For Auto Changeover Enabled , select Yes if automatic changeover is desired or No if user selected/manual changeover is desired. : If the standby exciter must be removed for service, Nautel recommends you set Auto Changeover NOTE Enabled to No while the standby exciter is unavailable for operation, instead of temporarily setting Standby Exciter to No .
  • Page 152 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  For Standby Exciter (appears when dual exciters are installed), select Yes if standby operation is available or desired or No if standby operation is not available or not desired. This is factory set and does not typically require adjustment.
  • Page 153 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.119: Changeover Editing Screens For display only. Indicates the active exciter - Exciter A or Exciter B. Press the cancel (X) button to return to the previous menu. Allows user to set the transmitter’s main exciter to Exciter A or Exciter B.

  • Page 154: User Settings - Aui

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER User Settings - AUI The User Settings page (see Figure 3.2.120 on page 3.2.138) allows operators to modify various custom user settings such as netowk and email notifications. To view the User Settings page, select User Settings from the Menu options.
  • Page 155 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 GV5/GV3.5 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 156 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Network Setup - Using the AUI Open the User Settings page by pressing Menu/User Settings on the Home page (see Figure 3.2.120 on page 3.2.138). Select the Network Setup option (left-side of the screen) to display related information and associated parameters on the right-side of the screen.
  • Page 157 (checkmark) button to save the change. Press the cancel ( X ) button to discard changes and return to the previous menu. A nameserver (also called a DNS) translates a host name (e.g., mail.nautel.com) to an IP address NOTE:...
  • Page 158 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.122: Network Settings screens All addresses shown are for reference purposes only Displays a number that serves as unique network adapter identifier. This is set by the manufacturer and is displayed for informational purposes only (cannot be user set).
  • Page 159 OPERATING THE TRANSMITTER Connecting a Laptop Directly to the Transmitter If connecting to the GV5/GV3.5 directly with a laptop, you must set a static IP address on the GV5/ GV3.5 and your laptop. From the controller UI’s Main Menu , go to User Settings -> Network Settings and set the IP address as follows: ...
  • Page 160 3.2.123) allows you to configure email parameters (e.g., email server and port number), and is required if the notification feature is used (see Notifications, on page 3.2.145). : Nautel recommends that the following settings be entered/vetted by a qualified Network NOTE Administrator. Figure 3.2.123: Email Configuration page To configure the email feature, perform the following steps: Open the User Settings page by pressing Menu/User Settings in the Home page.
  • Page 161 Enter the following parameters:  Email Server : The outgoing mail server. Enter the server name or IP address here. 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 3.2.138).
  • Page 162 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Notifications The Notifications page (see Figure 3.2.124) provides a means for the transmitter to issue emails triggered by user defined alarm events. If you use this feature, you must also configure an email (see Email Configuration, on page 3.2.143).
  • Page 163 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.125: Notifications adding/updating page PAGE 3.2.146 VERSION 0.2 2014-07-23...
  • Page 164 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Configuring Exgine Settings The Exgine Settings page (see Figure 3.2.126) allows you to set signal parameters and determine IP information for use with the Exgine option. Figure 3.2.126: User Settings - Exgine Settings Procedure to configure Exgine Settings : Open the User Settings page by pressing Menu/User Settings in the Home page.
  • Page 165 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  E2X Port - The exgine expects E2X on port 9000. Some non-Nautel Exporters utilize port 11000 instead. Mac Address - Displays a number that serves as unique network adapter identifier. This is set ...
  • Page 166 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 167: Snmp Configuration

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER SNMP Configuration The SNMP Configuration page (see Figure 3.2.128) provides a means to configure the SNMP agent and associated traps. Figure 3.2.128: SNMP Configuration page - Agent tab shown Agent Settings Using the Agent tab (see Figure 3.2.128), configure the SNMP agent as follows:...
  • Page 168 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  Trap Receiver IP : Enter the IP address of the computer to which the SNMP agent will send trap notifications. The computer must be running an SNMP application that is configured to receive traps.
  • Page 169 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Capturing Critical Parameters : This feature is available only through the remote AUI. NOTE You can capture critical parameter data for the transmitter’s current state using the AUI’s Critical Parameters page (see Figure 3.2.130).
  • Page 170 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Using an External 10 MHz Input You can configure the GV5/GV3.5 to accept an external 10 MHz input using the AUI (see External 10 MHz Input - using the AUI) or using the lcontroller UI (see...
  • Page 171 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER External 10 MHz Input - using the Controller UI To view the enable/disable screen for the external 10 MHz input (see Figure 3.2.132), select User Settings -> Ext. 10 MHz Inp from the Main Menu .
  • Page 172 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Spectrum Mask The Spectrum Mask page (see Figure 3.2.133) allows users to select the appropriate FM mask standard ( FCC, ETSI or None ) being used by the analyzer. The selection affects the mask lines on the Spectrum Analyzer instrument.
  • Page 173 3.2.159), the clock will set automatically and cannot be manually adjusted. Setting the Clock - using the AUI You can set the GV5/GV3.5’s time and date using the AUI’s Time Setup page (see Figure 3.2.134) 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 174 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER 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. Set the time and date as follows: Select the Time Setup option from the left-side of the User Settings page to open a related window on the right-side of the page.
  • Page 175 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Setting the Clock - Using the Controller UI When you select User Settings -> Set Clock from the Main Menu (see Figure 3.2.135) you can set the current time and date. The time appears on the top line of the top level screen (see Figure 3.2.8 on page...
  • Page 176 3.2.159). You can configure one or more NTP (Network Time Protocol) servers to allow clock synchronization with all computers on the same network as the GV5/GV3.5. To view the AUI’s NTP Servers page (see Figure 3.2.136), select NTP Servers from the User Settings options. There are several functions available on this page - enabling NTP, monitoring NTP server status and managing servers.
  • Page 177 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Monitoring NTP Servers The NTP Server Status section displays tabular information on the NTP servers connected to the network. The table includes remote name, IP address, delay, offset and jitter.  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 178 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Setting User Thresholds You can set thresholds for the main audio and SCA sources (trip level and timeout) and forward power level using the AUI (low and very lower power thresholds) (see...
  • Page 179 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  Selecting the Low Audio tab displays a screen that allows for setting of the low trip level and timeout delay for the main audio and SCA audio low thresholds. If the applicable audio source (main or SCA) level falls below the Trip Leve l setting (default is ...
  • Page 180 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Setting User Thresholds - using the Controller UI From the controller UI, you can establish the low audio thresholds and timeout delays for the main audio and SCAs. To view the Audio Low screen, select User Settings -> Audio Low from the Main...
  • Page 181 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Setting Call Sign/ID The Call Sign/ID page (see Figure 3.2.141) allows the user 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 and...
  • Page 182 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Turn-On Behaviour The Turn-on Behaviour page (see Figure 3.2.142) allows users to delay the start-up (RF on) of the transmitter when recovering from an ac power loss, in order to limit the simultaneous power demand from multiple transmitters on a common generator by staggering their turn on sequence.

  • Page 183: User Settings - Controller Ui

    OPERATING THE TRANSMITTER User Settings - Controller UI You can establish various user settings for the GV5/GV3.5 using the controller’s UI. Several User Settings were described previously in this section (e.g., Edit Presets, Set Clock, Network Settings, etc. ). The following additional options are available: ...
  • Page 184 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Setting Pilot Sample Level : Setting the pilot sample is only available using the controller UI. NOTE From the front panel UI, you can set the level of the pilot sample that is applied to the PILOT SAMPLE OUT (A1J4A) BNC connector on the rear of the controller (A4).
  • Page 185 : The test signal generator function is only available using the controller UI. NOTE From the controller UI, you can configure the test signal generator output of the GV5/GV3.5. 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 186 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.145: 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 Bandlimited Noise.
  • Page 187 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Selecting FM Mask : FM Mask selection is only available using the controller UI. NOTE From the controller UI, you can select the appropriate FM mask standard (FCC, ETSI or None) being used by the analyzer on the AUI.
  • Page 188 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Turn-On Delay Setting : The turn-on delay setting is only available using the controller UI. NOTE From the controller 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 189 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Ramp-Up Speed Setting : The ramp-up speed setting is only available using the controller UI. NOTE From the controller UI, you can set the transmitter’s ramp-up speed. This setting establishes the time it takes the transmitter to ramp up from 0 W to full power.

  • Page 190: Configuring Remote Inputs And Outputs

    Remote I/O Settings - using the Controller UI, on page 3.2.179). Refer also to the GV5/GV3.5 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 3.2.149), select Remote I/O from the Menu options.
  • Page 191 That setting can only be made by a local user using the AUI’s Local button. Nautel sets digital input defaults prior to shipping. See the Pre-installation Manual for details.
  • Page 192 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.150: 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. Press the existing Logic bar to display the applicable drop-down menu options, which may include: ...
  • Page 193 3.2.176, 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 GV5/GV3.5 Pre-installation Manual for details. Figure 3.2.151: Remote I/O Page - Remote Outputs tab selected Select the desired digital output (1 through 16) from the list.
  • Page 194  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 GV5/GV3.5 Troubleshooting Manual for a description of each alarm. Figure 3.2.152: Select a Remote (output) window VERSION 0.2 2014-07-23...
  • Page 195 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Configure Output Logic - AUI You can configure the active/inactive logic for each of the 16 digital outputs. Press the existing Logic bar to display the applicable drop-down menu options. Some digital output default examples: If the selected channel is RF On/Off , the drop-down options are: ...
  • Page 196 Unless otherwise noted, these inputs are only accepted by the transmitter if remote control is enabled. That setting can only be made by a local user using the front panel AUI. Nautel sets digital input defaults prior to shipping. See the GV5/GV3.5 Pre-installation Manual for details.
  • Page 197 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.154: Remote Inputs Screens (Input 1 shown) Use the up and down buttons to select the desired digital input (1 through 10) from the list. Each screen shows the current digital input parameter (e.g., RF On/Off), as well as the polarity (e.g., Falling edge RF On) and current state (e.g., high, low) of the corresponding input pin.
  • Page 198 Nautel sets digital output defaults prior to shipping. See the GV5/GV3.5 Pre-installation Manual for details. Figure 3.2.155: Remote Outputs Screens (Output 1 shown) Use the up and down buttons to select the desired digital output (1 through 16) from the list.
  • Page 199 UI (see Analog Outputs - Controller UI, on page 3.2.183). Nautel sets analog output defaults prior to shipping. There are no user configuration options. They are for monitoring purposes only. See the GV5/GV3.5 Pre-installation Manual for details. Analog Outputs - AUI...
  • Page 200 3.2.183), you can view the levels of 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 GV5/GV3.5 Pre-installation Manual for details.
  • Page 201 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Site Control Settings You can use the AUI’s Site Control page (see Figure 3.2.158) to locally or remotely configure remote inputs and outputs for use with external site control equipment (air conditioner, etc.). This page allows the user to create and configure custom digital inputs and outputs and assign them for use using the Remote Inputs and Remote Outputs pages.
  • Page 202 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.159: Site Control Rule Editing Window  In the Name section, enter a name for the rule. This will display on the Site Control page, as well the Logs page, when triggered.
  • Page 203 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER  In the Input section, use the drop-down menu to select the desired input (alarm, status or custom input) that will affect the rule. Note that a second input may also be selected in conjunction with a logic operation if the Operator section contains the AND, OR or XOR function.

  • Page 204: Preset Scheduler

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Preset Scheduler If the scheduler is enabled (see Enabling the Scheduler on page 3.2.189), you can program a yearly preset schedule for the transmitter. Use the Scheduler page (see Figure 3.2.160) to set the dates and times at which presets take effect.
  • Page 205 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.161: Rule Explorer window When you press in the Rules list, you have the option to edit or delete an existing rule, or to create a new rule. Select the New or Edit button to display the Rule Explorer window (see Figure 3.2.161).
  • Page 206 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Enabling the Scheduler You can enable or disable the scheduler using the AUI (see Enabling the Scheduler - AUI) or using the controller UI (see Enabling the Scheduler - Controller UI). Enabling the Scheduler - AUI Enable or disable the scheduler by pressing the Scheduler button in the Date &...

  • Page 207: Audio Player

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Audio Player The built-in audio player (see Figure 3.2.162) can use a file playlist, Livewire or Icecast/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 208 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Playlist The Playlist tab (see Figure 3.2.162) 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 209 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER The Playlist Contents section is used for inserting jumps ( Insert JMP button) and deleting playlist contents ( Delete button). The Insert JMP button allows the user to set up a playlist that can jump to an item in another playlist.
  • Page 210 Figure 3.2.166: Audio Player page - Streams tab Streams The GV5/GV3.5 is capable of playing audio streams in either Icecast/Shoutcast or Livewire format. The audio player supports Icecast/Shoutcast playlists and IP addresses for audio streams. For an Icecast/ Shoutcast playlist enter the URL for the station. For an audio stream, enter the URL for that stream.
  • Page 211 3.2.167). Enter the appropriate information for the audio server (Name and URL for Icecast/Shoutcast; Name and Channel for Livewire). Make sure the GV5/GV3.5 can access the location. Press OK to add the audio stream or press Cancel to discard changes.
  • Page 212 If you are editing an audio stream, enter the appropriate information for the audio server (Name and URL for Icecast/Shoutcast; Name and Channel for Livewire). Make sure the GV5/GV3.5 can access the location. Press OK to either edit or delete the audio stream, or press Cancel to discard changes.

  • Page 213: 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 GV5/GV3.5 transmitter. View the Orban Optimod-FM 5500 Digital Audio Processor Operating Manual online at: ftp://ftp.orban.com/5500/Documentation/...
  • Page 214 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Configuring the Transmitter for the Orban Audio Processor Configure the GV5/GV3.5 to recognize the presence of the Orban card using the controller UI (see Orban Enabling - using the Controller UI) or the AUI (see...
  • Page 215 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Orban Hardware Configuration - using the AUI Navigate to the AUI's System Settings -> Hardware Configuration page (see Figure 3.2.169). Press or click on the drop arrow in the Audio Processor field. Select Orban Inside to enable the Orban audio processor for use (selecting None disables it).
  • Page 216 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 217 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.170: Enabling the Orban Audio Processor - Controller UI PAGE 3.2.200 VERSION 0.2 2014-07-23...
  • Page 218 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Orban Enabling - using the AUI With the transmitter turned on, navigate to the AUI's Main Menu -> Presets page. For the applicable preset, press the Other Settings tab (see Figure 3.2.171).
  • Page 219 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Selecting an Orban Audio Processor Preset Select an Orban audio processor preset using either the AUI (see Selecting an Orban Preset - using the AUI - see page 3.2.202) or the controller UI (see...
  • Page 220 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Selecting an Orban Preset - using the Controller UI From the User Settings -> Edit Presets -> (Select desired preset to edit) -> Main Audio > Audio Processor menu (see Figure 3.2.173), select Preset .
  • Page 221 GV5/GV3.5 OPERATIONS & 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 222 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.175: Audio Processor Menu - Less More tab shown Current Setting Slider bar (green section) Adjustment Buttons VERSION 0.2 2014-07-23 PAGE 3.2.205...
  • Page 223 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Loading and Saving Orban Presets The left-hand side of the Audio Processor pages has four buttons (see below). When you first enter the Audio Processor page, the current preset is displayed. If the current preset is not the preset you want to work with, press the Load button to call up a window containing a list of alternate presets.
  • Page 224 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Tab Sections The following tabs (and referenced Figure numbers) are available on the Audio Processor page. Each provides specific control functions for the selected preset. Refer to the Orban Optimod 5500 manual for details on these settings.
  • Page 225 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.177: Audio Processor Menu - Stereo Enhancer tab Figure 3.2.178: Audio Processor Menu - AGC tab PAGE 3.2.208 VERSION 0.2 2014-07-23...
  • Page 226 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.179: Audio Processor Menu - EQ tab Figure 3.2.180: Audio Processor Menu - Final Clipping tab VERSION 0.2 2014-07-23 PAGE 3.2.209...
  • Page 227 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.181: Audio Processor Menu - Multiband tab Figure 3.2.182: Audio Processor Menu - Compressors tab PAGE 3.2.210 VERSION 0.2 2014-07-23...
  • Page 228 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER Figure 3.2.183: Audio Processor Menu - Bandmix tab Figure 3.2.184: Audio Processor Menu - Distortion tab VERSION 0.2 2014-07-23 PAGE 3.2.211...
  • Page 229 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER PAGE 3.2.212 VERSION 0.2 2014-07-23...

  • Page 230: Routine Maintenance

    “Replacing an Air Filter” on page 3.3.3. Clean the GV5/GV3.5 using a vacuum cleaner and a soft-bristle brush to remove loose dirt. Clean, damp rags should be used to remove dirt that cannot be removed with a vacuum cleaner. Never use compressed air to clean the GV5/GV3.5.

  • Page 231: Battery Replacement

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL ROUTINE MAINTENANCE Checking Hardware All hardware must be checked at least once a year. Thermal cycling from turning the GV5/GV3.5 on and off will require more frequent checks.  To prevent damaging the hardware, ensure that the proper sized tools are used. In most cases, hardware is metric.

  • Page 232: Replacing An Air Filter

    Take the following steps to replace an GV5/GV3.5 air filter: Order a new filter or filters, as necessary. You can order a standard sized filter from Nautel (Nautel Part # HR142) or from the manufacturer (18” x 24” x 2”, American Air Filter PerfectPleat SC M8 MERV 8 or equivalent) or obtain one from any local supplier of HVAC supplies.
  • Page 233 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL ROUTINE MAINTENANCE Figure 3.3.1: Replacing Front Air Filters 2 quarter-turn fasteners to remove filter bracket Air flow direction Filter Bracket PAGE 3.3.4 VERSION 0.2 2014-07-23...
  • Page 234 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL ROUTINE MAINTENANCE Figure 3.3.2: Replacing Rear Air Filters Air flow direction Filter Bracket 4 quarter-turn fasteners to remove filter bracket (not necessary to remove the rear panel) VERSION 0.2 2014-07-23 PAGE 3.3.5...

  • Page 235: Performing On-Air Checks

    Use the transmitter’s AUI to compare current transmitter settings with those on the Critical Parameters sheet. : Nautel completes the Critical Parameters sheet with the transmitter terminated into a precision NOTE 50 ohm load. Measurements made on site into a dummy load or station antenna may not yield the same readings.

  • Page 236: Replacing The Controller Module's 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: Remove the upper, rear filter panel by loosening the 12 quarter-turn fasteners securing the panel to the transmitter.
  • Page 237 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL ROUTINE MAINTENANCE Figure 3.3.3: Replacing Controller Battery 3 V Battery CONTROLLER MODULE Rear view (filter panel removed) PAGE 3.3.8 VERSION 0.2 2014-07-23...

  • Page 238: Inspecting Lightning Protection Systems

    GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL ROUTINE MAINTENANCE Inspecting Lightning Protection Systems You should inspect the lightning protection systems that are connected to your GV5/GV3.5 transmitter, ac power, RF feedline, antenna and tower periodically to ensure that your site, equipment and personnel are fully protected.
  • Page 239 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL ROUTINE MAINTENANCE PAGE 3.3.10 VERSION 0.2 2014-07-23...

  • Page 240: Non-Standard Maintenance

    AUI, Axia Livewire Module, Controller, Exciter B (if applicable), Orban Inside (if applicable), Rack, Server, SNMP Agent and Watchdog. Contact Nautel for the most recent software revision and download *.tgz file to a laptop or network location. Maximize the ARM’s disk space by deleting the old .tgz files. Use the Manage Files button to display the Upload Files window, select the file(s) to delete, and click the Delete button VERSION 0.2 2014-07-23...
  • Page 241 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL NON-STANDARD MAINTENANCE Transferring Upgrade File The following steps assume either the laptop will be used to connect directly to the transmitter OR the transmitter and network computer are currently connected to the same network. Transmitter IP Configuration From the transmitter AUI, go to Menu / User Settings / Network Setup .
  • Page 242 3.4.2. The transmitter login screen should appear. 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 Navigate through the AUI to Menu / Software / Upload Files , select the upgrade files tab and press Browse .

  • Page 243: Configuring A Mod Loss Backup Preset

    NON-STANDARD MAINTENANCE Configuring a Mod Loss Backup Preset The GV5/GV3.5 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...
  • Page 244 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL NON-STANDARD MAINTENANCE Figure 3.4.2: Backup Preset Main Audio Screen The setup page for the selected preset should now appear. Click the Main Audio tab (see Figure 3.4.2). Click the Audio Source field’s drop-down arrow to view the available audio sources. Select the desired backup audio source.
  • Page 245 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL NON-STANDARD MAINTENANCE Figure 3.4.3: Saving the Backup Preset Configuring the Primary Audio Preset Go to Menu / Presets / Load . The Load Preset window in Figure 3.4.1 shall display. Select your primary or normal preset to allow editing of its audio loss parameters. Click Load .
  • Page 246 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL NON-STANDARD MAINTENANCE Figure 3.4.4: Normal Preset - Other Settings screen : SCA, RDS and Pilot modulation levels are additive and contribute the audio level. If their NOTE combined levels exceed the audio loss threshold level, a preset change will not occur. Stations with audio content containing extended nulls or silent periods (e.g., classical music) should consider...
  • Page 247 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL NON-STANDARD MAINTENANCE PAGE 3.4.8 VERSION 0.2 2014-07-23...

  • Page 248: List Of Terms

    Low Voltage Power Supply. A module or modules used in the ac-dc power stage that generates LVPS. the low level dc supply voltage for the transmitter. A setting that controls power level, frequency and audio parameters. The GV5/GV3.5 allows Preset. you to pre-program multiple presets.
  • Page 249 GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL LIST OF TERMS PAGE 3.5.2 VERSION 0.2 2014-07-23...
  • Page 251 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 2013 NAUTEL. All rights reserved.

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