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Nautel XR3 Installation Manual

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XR6/XR3 Transmitter
Installation Manual
Document: XR6/XR3-INST
Issue:
3.1 2014-06-04
Status:
Standard

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  • Page 1 XR6/XR3 Transmitter Installation Manual Document: XR6/XR3-INST Issue: 3.1 2014-06-04 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 2014 NAUTEL. All rights reserved.

  • Page 5: Table Of Contents

    XR6/XR3 Installation Manual Table of contents Contents About this manual About Safety Electrical Hazards Lightning Hazards RF Hazards Toxic Hazards Other Hazards Safety Precautions xiii Personal Safety xiii Site Safety Equipment Safety Preparing for installation Unpacking and positioning Installing the power transformer...
  • Page 6 Commissioning 11-3 Going on-air 11-6 Parts and tools 12-1 Contacting Nautel 12-1 Parts supplied by Nautel 12-1 Parts not supplied by Nautel 12-2 Parts ordering 12-2 Module replacement program 12-2 Tools for installation 12-3 Pre-installation / Installation assistance 13-1 Pre-installation consulting...
  • Page 7 XR6/XR3 Installation Manual On-site support 13-3 Training 13-4 Standard warranty 13-5 Extended warranties 13-9 List of terms 14-1 Index IX-1 Issue 3.1 2014-06-04 Page vii...
  • Page 8 XR6/XR3 Installation Manual Page viii Issue 3.1 2014-06-04...

  • Page 9: About This Manual

    XR6/XR3 Installation Manual About this manual This manual provides information about installing an XR6/XR3 transmitter. This manual is intended for use by qualified, trained installers. 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 10 The Nautel website provides useful resources to keep you up to date on your XR6/XR3. 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 11: About Safety

    XR6/XR3 Installation 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 12: Lightning Hazards

    XR6/XR3 Installation Manual Use a proper lockout procedure to ensure that another worker cannot accidentally reapply power while you are performing maintenance on any part of the transmitter or site. Lightning Hazards Before opening the transmitter and touching internal parts, remove and solidly ground the antenna connection.

  • Page 13: 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 14 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 personnel who have access to the transmitter site.
  • Page 15 XR6/XR3 Installation 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 16: Equipment Safety

    (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 17 XR6/XR3 Installation Manual Earthquake Protection If the transmitter site is in a region that experiences any noticeable earthquake activity, take steps to prevent the transmitter from shifting or rocking during an earthquake. Even during minor earthquakes, rocking or movement of the transmitter is likely to damage the feedline connection, and could even cause a catastrophic failure of the ac power feed into the transmitter.
  • Page 18 XR6/XR3 Installation Manual Page xviii Version 3.1 2014-06-04...

  • Page 19: Preparing For Installation

    For a list of required tools, see “Parts and tools” on page 12-1. 9. When you are ready to install the XR6/XR3 transmitter, follow the steps shown in Figure 1.1 on page 1-2. When you have completed a task or step, put a check mark beside the step number.
  • Page 20 XR6/XR3 Installation Manual Preparing for installation Figure 1.1: Flowchart - Installing the transmitter Unpacking and positioning - see page 2-1 Installing the power transformer - see page 3-1 Connecting the station reference ground - see page 4-1 Connecting ac power - see page 5-1...

  • Page 21: Unpacking And Positioning

    1. Lift and slide the transmitter cabinet off the base of its crate. 2. If necessary, remove the power modules from the transmitter. Without the power transformer, and with one power module installed, the XR6/XR3 transmitter weighs about 145 kg (319 lbs).
  • Page 22 XR6/XR3 Installation Manual Unpacking and positioning Figure 2.1: RF Power Module Top Mounting Screw Holes Rear Panel Cutout Bottom Mounting Screw Connector Page 2-2 Issue 3.1 2014-06-04...
  • Page 23 4. Verify that the ac power cable conduit from the ac disconnect switch reaches the entry point in the cabinet. 5. Verify that the RF feed cable reaches the RF output connector on the cabinet. Figure 2.2: XR6/XR3 Transmitter – Rear View 2 Packing Bolts (1 per module) Safety Ground Stud Assembly Connection Issue 3.1 2014-06-04...
  • Page 24 XR6/XR3 Installation Manual Unpacking and positioning Page 2-4 Issue 3.1 2014-06-04...

  • Page 25: Installing The Power Transformer

    XR6/XR3 Installation Manual Installing the power transformer Section 3: Installing the power transformer 1. Before placing the transformer into the transmitter, set the line voltage tap selections. Based on your nominal line to line (or line to neutral for some single-phase ac power sources) voltage, select the appropriate tap position identified on the labels mounted on the terminal board end of the transformer.
  • Page 26 XR6/XR3 Installation Manual Installing the power transformer Figure 3.2: Single-phase XR6 power transformer line voltage tap layout LOAD 2 LOAD 1 LINE 1 LINE 2 Page 3-2 Issue 3.1 2014-06-04...
  • Page 27 XR6/XR3 Installation Manual Installing the power transformer Table 3.1: Three-phase primary winding tap nominal voltages (rms, phase-to-phase) Voltage (V ac) Voltage (V ac) Table 3.2: Single-phase primary winding tap nominal voltages (rms, phase-to-phase) Voltage (V ac) NOTE: Ac voltage applied to transformer taps can be phase-to-phase (L-L) or phase- to-neutral (L-N).
  • Page 28 XR6/XR3 Installation Manual Installing the power transformer 3. Remove the back plate at the bottom/back of the transmitter cabinet by removing four mounting screws (see Figure 3.4 on page 3-5). 4. For single-phase transmitters only: Remove the four choke shims at the bottom of the tray supporting the three chokes.
  • Page 29 XR6/XR3 Installation Manual Installing the power transformer Figure 3.3: XR6/XR3 1-phase choke shim removal Shims Qty 4 Figure 3.4: XR6/XR3 3-phase power transformer installation Load 1-3 connections Line 1-3 connections Transformer ground Back plate Station reference ground Issue 3.1 2014-06-04...
  • Page 30 If necessary, disconnect wire # 141 and secure it to the selected tap. 11. Reinstall the back plate using the four mounting screws removed in Step Figure 3.6: XR6/XR3 1-phase control transformer (T2) tap selection L-L or L-N Wire #141...

  • Page 31: Connecting The Station Reference Ground

    4. Attach the 6 AWG wire from the safety ground stud assembly to the transformer ground. Figure 3.2 on page 3-3. 5. For information about grounding the lightning protection, see the XR6/XR3 Pre-Installation Manual. 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 32 XR6/XR3 Installation Manual Connecting the station reference ground Figure 4.1: Safety Ground Stud Assembly Detail INTERIOR EXTERIOR 1) M10 BRASS STUD 2) M10 NUT 3) M10 FLAT WASHER 4) M10 SPLIT WASHER 5) EXTERIOR REFERENCE GROUND CONDUCTOR 6) CABINET FRAME...

  • Page 33: Connecting Ac Power

    (see Figure 5.1). WARNING: Ensure that wiring sizes are appropriate. ac wiring must be installed by a qualified, locally-certified electrician. Figure 5.1: Location of the ac power cable entry (top view of XR6/XR3 transmitter) Front AUDIO CABLE ENTRY...
  • Page 34 XR6/XR3 Installation Manual Connecting ac power 2. Connect the ac power ground to the station reference ground. 3. Verify that the station reference ground and the transformer ground terminal are connected to the safety ground stud assembly on the rear of the transmitter, (see Figure 2.2 on page 2-3...

  • Page 35: Installing The Rf Connector

    XR6/XR3 Installation Manual Installing the RF connector Section 6: Installing the RF connector The XR6/XR3 comes with one of several types of RF output connectors. All types are illustrated in this section. Preparation WARNING: THE AC VOLTAGES PRESENT IN THE TRANSMITTER CAN BE FATAL. EXERCISE EXTREME CAUTION.
  • Page 36 XR6/XR3 Installation Manual Installing the RF connector Figure 6.1: XR6/XR3 Exciter Panel Assembly (NAE93 – A2) A2A6 Remote Interface PWB A2A2 A2A1 A2A3 A2A1 RF Synthesizer Exciter Interphase Exciter PWB ‘A’ Interface PDM Driver Interface PWB ‘A’ A2A4 RF Synthesizer A2A5 PWB ‘B’...
  • Page 37 XR6/XR3 Installation Manual Installing the RF connector 7/8 EIA Output Connection 1. Locate and unpack the output connector kit. 2. Attach the brass connector cup from the kit to the output strap using the M5 x 16 mm long hex head bolt, split washer and flat washer supplied, such that the cup is pointing towards...
  • Page 38 XR6/XR3 Installation Manual Installing the RF connector 1-5/8 EIA Output Connection 1. Locate and unpack the output connector kit. 2. Attach the brass connector cup from the kit to the output strap using the 5/16 x 1 inch long socket head cap screw, split washer and flat washer supplied, such that the cup is pointing...
  • Page 39 XR6/XR3 Installation Manual Installing the RF connector Stud Output Connector 1. Unpack the stud connector assembly. Remove the M6 nut, split washer and one flat washer off the longer leg of the brass stud in the stud plate (Figure 6.4).
  • Page 40 XR6/XR3 Installation Manual Installing the RF connector Page 6-6 Issue 3.1 2014-06-04...

  • Page 41: Adjusting The Spark Gap

    Section 7: Adjusting the spark gap The XR6/XR3’s RF output filter contains a spark gap that must be adjusted - based on frequency and site altitude - to provide protection against excessive voltage (i.e., lightning) on the RF output. If the altitude of the transmitter site is known prior to transmitter delivery, then the spark gap is adjusted at Nautel.
  • Page 42 XR6/XR3 Installation Manual Adjusting the spark gap Figure 7.1: RF Output Spark Gap Location Spark Gap Page 7-2 Issue 3.1 2014-06-04...
  • Page 43 Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 0.050 (XR3) 0.079 (XR6) 0.049 (XR3) 0.078 (XR6) 0.049 (XR3) 0.077 (XR6) 0.048 (XR3) 0.077 (XR6) 0.048 (XR3) 0.076 (XR6) 0.047 (XR3) 0.075 (XR6)
  • Page 44 Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude (continued) Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 0.076 (XR3) 0.122 (XR6) 0.076 (XR3) 0.121 (XR6) 0.075 (XR3) 0.120 (XR6) 0.075 (XR3) 0.119 (XR6) 0.074 (XR3) 0.118 (XR6) 0.073 (XR3) 0.117 (XR6)
  • Page 45 Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude (continued) Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 0.061 (XR3) 0.096 (XR6) 0.060 (XR3) 0.096 (XR6) 0.060 (XR3) 0.095 (XR6) 0.059 (XR3) 0.095 (XR6) 0.059 (XR3) 0.094 (XR6) 0.059 (XR3) 0.093 (XR6)
  • Page 46 XR6/XR3 Installation Manual Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude (continued) Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 0.050 (XR3) 0.080 (XR6) 0.050 (XR3) 0.080 (XR6) 0.050 (XR3) 0.079 (XR6) 0.050 (XR3) 0.079 (XR6) 1000 0.049 (XR3) 0.078 (XR6)
  • Page 47 XR6/XR3 Installation Manual Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude (continued) Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 1130 0.043 (XR3) 0.069 (XR6) 1135 0.043 (XR3) 0.069 (XR6) 1140 0.043 (XR3) 0.068 (XR6) 1145 0.043 (XR3) 0.068 (XR6)
  • Page 48 XR6/XR3 Installation Manual Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude (continued) Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 1280 0.082 (XR3) 0.131 (XR6) 1285 0.082 (XR3) 0.131 (XR6) 1290 0.082 (XR3) 0.130 (XR6) 1295 0.081 (XR3) 0.130 (XR6)
  • Page 49 XR6/XR3 Installation Manual Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude (continued) Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 1430 0.072 (XR3) 0.115 (XR6) 1435 0.072 (XR3) 0.114 (XR6) 1440 0.071 (XR3) 0.114 (XR6) 1445 0.071 (XR3) 0.113 (XR6)
  • Page 50 XR6/XR3 Installation Manual Adjusting the spark gap Table 7.1: Spark Gap Setting versus Altitude (continued) Frequency (kHz) Spark Gap (in.) @ 0 ft. Altitude 1580 0.064 (XR3) 0.102 (XR6) 1585 0.064 (XR3) 0.102 (XR6) 1590 0.064 (XR3) 0.101 (XR6) 1595 0.063 (XR3) 0.101 (XR6)
  • Page 51 Spark Gap Scale Factor Spark Gap (in.) (multiply gap by...) 1.00 1,000 1.05 2,000 1.10 3,000 1.15 (XR3), 1.16 (XR6) 4,000 1.21 (XR3), 1.22 (XR6) 5,000 1.28 (XR3), 1.29 (XR6) 6,000 1.35 (XR3), 1.36 (XR6) 7,000 1.43 (XR3), 1.45 (XR6) 8,000 1.52 (XR3), 1.54(XR6)
  • Page 52 XR6/XR3 Installation Manual Adjusting the spark gap Page 7-12 Issue 3.1 2014-06-04...

  • Page 53: Audio And Iboc Inputs

    Carefully control the peak levels. For monaural applications, the audio may be processed to provide up to 145% positive peak program modulation, with a 3 kW (XR3) or 6 kW (XR6) RF carrier at the nominal ac voltage. IBOC input In Band On Channel (IBOC) audio is processed outside the XR6/XR3 in the customer’s IBOC...

  • Page 54: Audio Configuration

    Figure 8.1 Figure 8.2 (a detail of the RF drive buffer PWB schematic in the XR6/XR3 Troubleshooting Manual). 1. E3 on the RF drive buffer PWB is set to HI to select high sensitivity. 2. O n the RF drive buffer PWB, E1 and E2 are both set to Int .
  • Page 55 XR6/XR3 Installation Manual Audio and IBOC inputs Routing Analog Installation Cables 1. Route audio cables through the cable entry hole in the transmitter’s top panel. See Figure 8.3 on page 8-6. 2. Route the cables through the ferrite toroid, provided in the ancillary kit, then toward the remote interface PWB, behind the GUI panel (see Figure 6.3 on page...
  • Page 56 If you provide a backup analog program stream to an exciter configured as analog in an IBOC installation, the system can automatically switch to the backup analog exciter and audio program stream. Refer to the XR6/XR3 Operating and Maintenance Manual for information about setting up exciter changeover.
  • Page 57 XR6/XR3 Installation Manual Audio and IBOC inputs 2. On the remote interface PWB, connect a jumper from J3-23 , and a jumper from J3-25 to ground ( TB2-4 ) permanently (or through the remote system). This will enable the IBOC inputs on Exciter A and B .
  • Page 58 XR6/XR3 Installation Manual Audio and IBOC inputs Figure 8.3: Location of cable entry hole (top view of XR6/XR3 transmitter) Front AUDIO CABLE ENTRY AC IN Rear Page 8-6 Issue 3.1 2014-06-04...

  • Page 59: Control And Monitoring

    LAN interface (NxLink) - see page 9-13 Controls The XR6/XR3’s graphic user interface (GUI) lets you control a number of transmitter functions and set parameters and schedules. (For detailed information about the GUI, refer to the XR6/XR3 Operating and Maintenance Manual.) In addition, you can control the on/off status, the active (A/B)
  • Page 60 XR6 transmitters, the alarm threshold voltage is factory calibrated to be approximately 250 V, 155 V, 91 V or 55 V. For single-phase XR3 transmitters, the alarm threshold voltage is factory calibrated to be approximately 175 V, 155 V, 91 V or 55 V.
  • Page 61 Output network faults High DC current This alarm is triggered when the dc current goes above approximately 41 A (XR6) or 21 A (XR3). High RF current This alarm is triggered when the RF current exceeds the factory-set alarm threshold.
  • Page 62 XR6/XR3 Installation Manual Control and monitoring RF driver fault This fault indicates a problem with the RF drive on the current exciter. If the exciter transfer function is set to auto, then the microcontroller will attempt a changeover to the other exciter. If it cannot, or if the exciter transfer function is set to manual, then this fault will cause a shutback.
  • Page 63 RF Power module faults PM Fault A or B* • A fault is being reported by power module A or B. A second RF power module is optional with an XR6 or XR3 transmitter. Note: Other faults Low backup battery This fault indicates that the backup battery voltage has fallen below an acceptable level.
  • Page 64 XR6/XR3 Installation Manual Control and monitoring The backup battery should be replaced while ac power is . If the ac power faults, without adequate backup battery power, then the log files will be lost. CAUTION: Do not wait for an extended period to replace the batteries. The control/monitor PWB’s microcontroller may not retain its settings if ac power is turned off when...

  • Page 65: Remote Control Circuits And Alarms

    XR6/XR3 Installation Manual Control and monitoring Remote control circuits and alarms You can control the active (A/B) exciter, the on/off status of the RF power stage, the preset RF power level, the power level adjustment, and system alarm reset remotely. The remote interface PWB contains a selection circuit that lets you select internal (single ended input) or external (differential input) input for all controlled functions.
  • Page 66 XR6/XR3 Installation Manual Control and monitoring When you use an external dc voltage (24 V to Option 2 - Differential Input (External V dc). 30 V) as the current source for a control function's opto coupler, configure the control function's external switching circuit and the remote interface PWB’s selection circuit for a differential input.
  • Page 67 XR6/XR3 Installation Manual Control and monitoring • TB2-6 (-): PDM INHB terminal. Continuous active signal inhibits the PDM by causing a shut- back. This also works when the remote/local status is set to local. • TB1-1 and TB1-2: EXT INTLK terminals. A short circuit between the pins for normal operat- ing status, an open between these pins causes a shutback.
  • Page 68 XR6/XR3 Installation Manual Control and monitoring • TB1-14 (-): EXCITER A terminal. Causes a changeover to select exciter A as the main exciter. Setting is saved in current preset. Provide an active pulse to select this exciter. • TB1-16 (-): EXCITER B terminal. Causes a changeover to select exciter B as the main exciter.
  • Page 69 XR6/XR3 Installation Manual Control and monitoring • J3-13: Pwr Mod Fail. One or more power modules has a fault. • J3-12: Low B+. See “Low B+ voltage” on page 9-2. • J3-11: High VSWR. See “High VSWR shutback” on page 9-3.

  • Page 70: Remote Performance Monitoring

    3.9 ± 0.5 V when the forward power is 6.5 kW (XR6) or 2.8 ± 0.5 V when the forward power is 3.3 kW (XR3). The monitoring circuit’s impedance must be greater than 1,000 ohms.

  • Page 71: Lan Interface (Nxlink)

    LAN interface (NxLink) A serial port is available on 9-pin D-sub connector J12 of the XR6/XR3’s remote interface PWB. This port allows you to remotely control and interrogate the XR6/XR3’s operational status. If the NxLink Ethernet interface module option is installed and you wish to use it as the remote interface, connector J12 is linked to Port 1 of the NxLink module.
  • Page 72 XR6/XR3 Installation Manual Control and monitoring Page 9-14 Issue 3.1 2014-06-04...

  • Page 73: Other Considerations

    XR6/XR3 Installation Manual Other considerations Section 10: Other considerations This section describes other considerations regarding the XR6/XR3 transmitter. • External RF drive source • External 10 MHz frequency reference - see page 10-2 External RF drive source You can apply an externally generated RF drive (carrier frequency only) to the remote interface board’s digital EXT RF IN BNC connector (J6).

  • Page 74: External 10 Mhz Frequency Reference

    XR6/XR3 Installation Manual Other considerations Installing an external RF drive source 1. If the RF drive for one or both exciters is to be applied from an external source, connect its wiring as follows: – Route RF drive coaxial cable through a cable entry hole in the cabinet and through the ferrite toroid, to the vicinity of the remote interface PWB.

  • Page 75: Commissioning Tasks

    XR6/XR3 Installation Manual Commissioning tasks Section 11: Commissioning tasks WARNING: Before applying ac power and turning on the transmitter, you must customize some circuits to the station's power source and operating requirements. Do not perform this pre-commissioning unless you are a station engineer or a competent electronics technician.
  • Page 76 Reasons for using a lower roll-off frequency are complex, but may include an antenna with sideband limitations, square-wave overshoot, or specific properties related to the audio processing. Nautel's field service department can provide recommendations based on your installation. 8. Refer to Table 11.1...

  • Page 77: Commissioning

    6. Look through the window on the left side of the transmitter’s lower rear panel (as seen from the back). Verify that both power status LEDs are on. 7. Check the alarm and status indicators (the front panel and GUI). See the XR6/XR3 Operating and Maintenance Guide.
  • Page 78 186 V and 206 V; the B+3 level should correspond to a B+ voltage between 305 V and 325 V for XR6 or between 210 V and 230 V for XR3. 19. Increase the transmitter's output carrier power to normal operating levels. Calculate the...
  • Page 79 XR6/XR3 Installation Manual Commissioning tasks Modulation checks Verify that the RF output is appropriately modulated when audio is applied: 23. Connect an appropriate modulation monitor to the remote interface PWB’s RF MONITOR connector (J8). The modulation monitor should have an impedance of 50 Ω. to obtain accurate readings.

  • Page 80: Going On-Air

    3. Turn the transmitter’s ac power back on. 4. Use the transmitter controls and graphic user interface to begin transmitter operations. For detailed instructions, refer to the XR6/XR3 Operating and Maintenance Guide. Page 11-6 Issue 3.1 2014-06-04...

  • Page 81: Parts And Tools

    Parts supplied by Nautel Ancillary parts kit An ancillary parts kit is shipped with the XR6/XR3. This kit contains hardware needed during the installation process. The kit includes toroids, spare fuses, screws and other miscellaneous hardware. Issue 3.1 2014-06-04...

  • Page 82: Parts Not Supplied By Nautel

    See “XR6/XR3 transmitter manuals” on page ix. Parts not supplied by Nautel Some parts and materials required to complete installation are not supplied by Nautel. The parts you need vary with the installation requirements. The list of parts you normally provide yourself during installation include: A suitable 50 Ω...

  • Page 83: Tools For Installation

    XR6/XR3 Installation Manual Parts and tools Tools for installation The tools you need during transmitter installation include the following: • Digital voltmeter • Philips screwdrivers, sizes #1 and #2 • Pliers • Wire cutters • Slot screwdriver, 5 mm (3/16 inch) •...
  • Page 84 XR6/XR3 Installation Manual Parts and tools Page 12-4 Issue 3.1 2014-06-04...

  • Page 85: Pre-Installation Consulting

    Extended warranties - see page 13-9 Pre-installation consulting Nautel field support specialists are available to answer questions and work with you to ensure that your site will be ready for the installation of your XR6/XR3 transmitter. For support, contact Nautel Cus- tomer Service and request assistance (“On-site support”...
  • Page 86 Ac power wiring for the transmitter has been installed and connected at the breaker panel or the building’s service entrance. If local electrical codes allow Nautel personnel to connect the transmitter to the ac supply, using the customer's cable, that task is included in this service.

  • Page 87: Online Documentation

    CDROM and in paper binders that are delivered with the transmitter.) On-site support If you require on-site assistance, Nautel’s field support specialists can help you prepare your site and ensure that your XR6/XR3 transmitter installation can proceed as quickly as possible. For more...

  • Page 88: Training

    Nautel training programs are made up of individual modules that can be 'mixed and matched' to meet the customer’s specific training needs. All Nautel training courses are available at the Nautel Training Center.

  • Page 89: Standard Warranty

    Buyer's expense. Where no-charge warranty replacements or repairs are provided under items 2, 3, 4, or 5, Nautel will pay that part of the shipping costs incurred in returning the part/assembly to the Buyer. Note: the Buyer is responsible for any and all import fees, duties or taxes.
  • Page 90 9. Nautel shall have the right and shall be provided full access to investigate whether failures have been caused by factors beyond its control. 10. In no event shall Nautel be liable for any consequential damages arising from the use of this equipment.
  • Page 91 Module exchange service In order to provide Nautel customers with a fast and efficient service in the event of a problem, Nautel operates a factory rebuilt, module exchange service which takes full advantage of the high degree of module redundancy in Nautel equipment. This module exchange service is operated from Nautel's factory in Bangor, Maine and Hackett's Cove, Nova Scotia.
  • Page 92 Equipment being returned to Nautel For all equipment being returned to Nautel and all requests for repairs or replacements: • Obtain an RMA number from Nautel (you must have an RMA number to return equipment) • Mark the item as 'field return' •...

  • Page 93: Extended Warranties

    Only repairs done at Nautel's facilities or by Nautel authorized personnel will be covered by the Extended Warranty Plans. You must ship faulty products back to Nautel, prepaid, and in the original package or in a package that provides equivalent protection.
  • Page 94 If Nautel’s service technicians are unable to solve the problem over the telephone, Nautel will give you an RMA number. You then return the module or circuit board to a Nautel service facility so that Nautel can provide a replacement. (Do not ship a component back to Nautel until you have an RMA number.)

  • Page 95: List Of Terms

    List of terms Section 14: 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 96 Preset. day and date basis. Exciters can be configured on a preset for a specific operating mode (for example, Exciter A - conventional AM, and Exciter B - IBOC). The XR6/XR3 allows you to pre-program up to six presets. A complete loss of RF output power, caused by any one of a variety of faults, including Shutback.

  • Page 97: Index

    XR6/XR3 Installation Manual Index electrical power cables, 12-2 Numerics engineering support, 13-1 exciter, active, 9-1, 10 MHz Reference Input BNC connector, external control and monitor wiring, 12-2 10-2 external DC power supply, external monitoring circuit, 9-10 active exciter external monitoring,...
  • Page 98 XR6/XR3 Installation Manual tools, 12-1 oscilloscope, 9-13 transformer taps, output voltage waveform, 9-12 transients, in remote control wiring, typical program content, 9-8, parts ordering 12-2 parts, 12-1 waveform, RF input voltage, 9-12 planning assistance, 13-1 website 12-2 preset power level...
  • Page 100 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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