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Nautel NX300 Installation Manual

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Download this manual See also: Operation & Maintenance Manual
NX300 Transmitter
Installation Manual
Document: NHB-NX300-INS-3.0
Issue:
3.0 2012-11-01
Status:
Standard

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Summary of Contents for Nautel NX300

  • Page 1 NX300 Transmitter Installation Manual Document: NHB-NX300-INS-3.0 Issue: 3.0 2012-11-01 Status: Standard...
  • Page 3 The comparisons and other information provided in this document have been prepared in good faith based on publicly available information. The reader is encouraged to consult the respective manufacturer's most recent published data for verification. © Copyright 2012 NAUTEL. All rights reserved.

  • Page 5: Table Of Contents

    NX300 Installation Manual Table of contents Contents Release control record Preparing for installation Unpacking and positioning Completing cabinet assembly Connecting transformer taps/load wiring Connecting the station reference ground Connecting ac power Adjusting the spark gap Installing audio inputs Planning complete?
  • Page 6 Table of contents Going on-air 10-4 Parts and tools 11-1 Contacting Nautel 11-1 Parts supplied by Nautel 11-1 Parts not supplied by Nautel 11-2 Parts ordering 11-2 Module replacement program 11-2 Tools for installation 11-3 Pre-installation / Installation assistance 12-1...

  • Page 7: Release Control Record

    NX300 Installation Manual Release control record Issue Date Reason 2012-11-01 Release 3 of product (NARA54B) Issue 3.0 2012-11-01 Page vii...
  • Page 8 NX300 Installation Manual Page viii Issue 3.0 2012-11-01...

  • Page 9: Preparing For Installation

    8. Assemble your parts and tools. For a list of required tools, see “Parts and tools” on page 11-1. 9. When you are ready to install the NX300 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 10: Unpacking And Positioning

    NX300 Installation Manual Preparing for installation Figure 1.1: Flowchart - Installing the transmitter Unpacking and positioning - see page 2-1 Completing cabinet assembly - see page 3-1 Connecting transformer taps/load wiring - see page 4-1 Connecting the station reference ground - see page 5-1...

  • Page 11: Unpacking And Positioning

    To install an NX300 transmitter, perform the following tasks: 1. Lift and slide the transmitter cabinets off the base of their crates. The NX300 contains four main crates - a control cabinet, a middle cabinet, an output cabinet and a transformer cabinet.
  • Page 12 6. Install the antenna ground switch on top of the transmitter cabinet as follows: • Locate the antenna ground switch (Nautel Part # 213-8320-05) that was packed with the ancillary crate for shipping. • Open the front door of the output cabinet and unlock and open the filter door to gain access to the inside of the transmitter cabinet.
  • Page 13 These parts may have been provided by Nautel (Cable Tray Parts List # 207-8385-**) or purchased from an alternate vendor. Install the cable tray system according to your transmitter system dimensions.
  • Page 14 NX300 Installation Manual Unpacking and positioning Figure 2.2: Installing Antenna Ground Switch UPPER SIDE OF 12 DOME-HEAD CARRIAGE BOLTS. INSTALL FLAT WASHER, SPLIT WASHER & NUT AND TIGHTEN IN PLACE. INSTALL M10 ACORN OVER REMAINING END OF EACH BOLT AND TIGHTEN.

  • Page 15: Completing Cabinet Assembly

    Completing cabinet assembly Section 3: Completing cabinet assembly To complete the assembly of the NX300 transmitter’s cabinets, perform the following tasks: Note: The assembly instructions in this section help to achieve basic cabinet assembly, and are mostly limited to exterior mechanical connections. All assembly items and hardware that is not already in the transmitter is located in the transmitter’s...
  • Page 16 Joiners” (Nautel Part # 207-8270), one “Horizontal Cabinet Joiner” (Nautel Part # 207-8270-01), two “Side Cabinet Joiners” (Nautel Part # 207-8270-02) and one “Connector Pipe” (Nautel Part # 194-6298-02), which are packed inside the filter compartment of each cabinet. 8. Install the joiners between the control cabinet and the middle cabinet, and between the middle cabinet and the output cabinet.
  • Page 17 NX300 Installation Manual Completing cabinet assembly Figure 3.2: Cabinet Joiner Channel Detail VERTICAL CHANNEL JOINERS HORIZONTAL CHANNEL JOINER UPPER TEFLON SUPPORT PLATE SHORT VERTICAL CHANNEL JOINERS LOWER TEFLON SUPPORT PLATE Issue 3.0 2012-11-01 Page 3-3...
  • Page 18 3-11) from the ancillary crate. 14. Remove the two cover plates (Nautel Part # 207-8162) from the side of the control and output cabinets (four plates total). Retain all securing hardware. It is not necessary to remove the center cover plate.
  • Page 19 Step 15 for the lower copper tube assembly, noting the Nautel Part # identification. 17. Locate and unpack current probes A67 (Nautel Part # 207-6213-02) and A71 (Nautel Part # 207-6213-03) in the ancillary crate. 18. Install current probe A71 at the output cabinet end of the “upper” copper tube installed in...
  • Page 20 NX300 Installation Manual Completing cabinet assembly 23. Locate and install the directional coupler (3A68, Nautel Part # NAFP107A) on top of the output cabinet (Rack 3) using the hardware provided. Locate the directional coupler’s mating connectors (9-pin D-sub P27 and Rogowski current probe BNC P1) that are tyrapped inside the output cabinet.

  • Page 21: Connecting The Station Reference Ground

    NX300 Installation Manual Completing cabinet assembly 30. Cabinet assembly is complete. Leave the back doors open to allow installation of ac power wiring (see Section 6, “Connecting ac power” on page 6-1) and assembly of the output cabinet’s station reference ground (see Section 5, “Connecting the station reference ground”...
  • Page 22 NX300 Installation Manual Completing cabinet assembly Page 3-8 Issue 3.0 2012-11-01...
  • Page 23 NX300 Installation Manual Figure 3.3: Routing Interconnect Cables RK1-P27 (mates with RK3-A68A1J3) RK1-A11A1 RK3-A17 RK2-A17 RK2-P32 (mates RK1-P32 (mates with RK3-P33) with RK2-P33) Issue 3.0 2012-11-01 Page 3-9...
  • Page 24 NX300 Installation Manual Figure 3.4: NX300 Transmitter Cabinet Assembly Aid (Sheet 1 of 3) 213-8320-05 ANTENNA GROUND SWITCH PACKED IN AUXILIARY BOX. USE M5 HARDWARE SUPPLIED 207-8172-01 SIDE PANEL USE M5 HARDWARE SUPPLIED NAFP107A DIRECTIONAL COUPLER PACKED IN AUXILIARY BOX.
  • Page 25 NX300 Installation Manual Figure 3.5: NX300 Transmitter Cabinet Assembly Aid (Sheet 2 of 3) Issue 3.0 2012-11-01 Page 3-11...
  • Page 26 NX300 Installation Manual Figure 3.6: NX300 Transmitter Cabinet Assembly Aid (Sheet 3 of 3) INDUCTOR INDUCTOR RK1-L7 COPPER STRAP CONNECTION POINT RK1-L7 RK2-L7 Copper coil winding Hex Bolt, Flat Washer 194-6298-02 Flat Washer, CONNECTOR PIPE ASSEMBLY Belleville Washer, Hex Nut...
  • Page 27 It is important to choose the correct tap based on the loaded line-to-line voltage (i.e., the line voltage present when the NX300 is operating at full power and full modulation) for maximum peak modulation capability and maximum efficiency. If the loaded line-to-line voltage falls between two tap settings, choose the higher voltage tap (this will maximize the NX300‘s power factor).
  • Page 28 Part # WT01) to make the ground connection between the transformer and Rack 3. This wiring may be supplied by Nautel and packed in Racks 1, 2 and 3 or in the ancillary crate. If it is not purchased from Nautel, it must be obtained by the user. In this case, it is imperative that you purchase the wiring specified in Section 5 - Electrical Requirements of the NX300 Pre-installation Manual.
  • Page 29 Terminate the wire using the appropriate size Cytolok cable connectors (Nautel Part # JA92 for 1/0 AWG wire), which are provided in the ancillary kit (see Figure 4.4 on page 4-6 for proper installation techniques).
  • Page 30 NX300 Installation Manual Connecting transformer taps/load wiring Figure 4.2: NX300 secondary wiring connections (power transformer cabinet) CABLE TRAY CROSS SECTION CABLE TRAY/ WIRING INTERFACE TO RACK 1 TO RACK 2 TO RACK 3 (WT02) (WT01) Cytolok (JA92) Remove only the screws STATION REFERENCE GROUND securing the cover.
  • Page 31 NX300 Installation Manual Connecting transformer taps/load wiring Figure 4.3: NX300 secondary wiring connections (transmitter cabinets) TOP VIEW (RACK 3 SHOWN) CABLE TRAY/ WIRING INTERFACE AC CABLE ENTRY XMTR (DOWN THROUGH REF GND CABLE DUCT) 1/0 AWG (RACK 3 ONLY) AC CABLE...

  • Page 32: Installation Instructions

    NX300 Installation Manual Connecting transformer taps/load wiring Figure 4.4: Installing Cytolok Cable Connectors TWO SIZES USED: Nautel Part # JA92 for 1/0 AWG wire Nautel Part # JA93 for 535 MCM wire WIRE Cytoloks connectors can be found in the ancillary kit.
  • Page 33 Note: Proper grounding configuration is critical for protecting transmitter circuitry from lightning strikes. See the Electrical Requirements section of the NX300 Pre- Installation Manual or the Recommendations for Transmitter Site Preparation Manual for information on proper grounding and lightning protection recommendation.
  • Page 34 NX300 Installation Manual Connecting the station reference ground Figure 5.1: 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 35: Connecting Ac Power

    Nautel may provide an EMERGENCY STOP switch. Close the ac power disconnect switch’s front door. 5. Route the load wiring from the ac power disconnect switch to the transformer cabinet, passing all the conductors, as a group, through a ferrite toroid (Nautel Part # LX63, provided in the ancillary kit).. Note: The preferred entry point for ac input wiring is through a hole in the primary side of the transformer cabinet.
  • Page 36 NX300 Installation Manual Connecting ac power 8. Connect the ac line input to the H1 (Line 1), H2 (Line 2) and H3 (Line 3) input terminals on the transformer (see Figure 4.1 on page 4-1). Connect the ac ground to the transformer’s ground stud.

  • Page 37: Adjusting The Spark Gap

    Section 7: Adjusting the spark gap The NX300’s RF output filter contains a spark gap that must be adjusted - based on 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 38 NX300 Installation Manual Adjusting the spark gap Figure 7.1: RF Output Spark Gap Location Spark Gap Page 7-2 Issue 3.0 2012-11-01...
  • Page 39 NX300 Installation Manual Adjusting the spark gap Table 7.1: Altitude Scale Factor Spark Gap Scale Factor Altitude (ft) (multiply gap by...) 1.00 1,000 1.05 2,000 1.10 3,000 1.16 4,000 1.23 5,000 1.30 6,000 1.38 7,000 1.47 8,000 1.57 9,000 1.68 10,000 1.81...
  • Page 40 NX300 Installation Manual Adjusting the spark gap Page 7-4 Issue 3.0 2012-11-01...

  • Page 41: Installing Audio Inputs

    1. Route all audio cables from their audio sources to the top of the transmitter (left-hand). 2. Get two ferrite toroids (one each of Nautel Part # LXP44 and LP23) from the ancillary kit. 3. Pass all audio input cables through the ferrite toroids obtained in Step 2.
  • Page 42 NX300 Installation Manual Installing audio inputs Figure 8.1: Passing Audio Input Wiring Through Ferrite Toroids LXP44 & LP23 ferrite toroids Program Input Cable (to exciters panel) Figure 8.2: Audio Cable Entry AUDIO CABLE ENTRY Page 8-2 Issue 3.0 2012-11-01...
  • Page 43 NX300 Installation Manual Installing audio inputs Figure 8.3: Audio Connections CONTROL/ INTERFACE Issue 3.0 2012-11-01 Page 8-3...

  • Page 44: Setting Exgine Audio Parameters

    Use the transmitter’s AUI to set and adjust Exgine audio parameters as follows (refer also to the Operating section of the NX300 Operations and Maintenance Manual): From the AUI click Menu -> User Settings -> Exgine Settings . The menu in Figure 8.4...
  • Page 45 NX300 Installation Manual Installing audio inputs – In the IP tab, enter Exgine IP settings (see the associated Exporter manual for assistance with IP settings). – In the Mode tab, set Digital Carriers to On or Off. – In the Mode tab, set Analog Transmission to On or Off.
  • Page 46 NX300 Installation Manual Installing audio inputs Page 8-6 Issue 3.0 2012-11-01...

  • Page 47: Installing Control/Monitor Wiring

    1. Route all remote control/monitor cables to the top of the transmitter (left-hand). 2. Get two ferrite toroids (one each of Nautel Part # LXP44 and LP23) from the ancillary kit. 3. Pass all remote control/monitor cables through the ferrite toroids obtained in Step 2.
  • Page 48 ENTRY 7. Connect the appropriate control/monitor cable(s) to the connector(s) described in Section 8 of the NX300 Pre-installation Manual.. Secure wires to the existing cabling and to the panel using arrowhead tyraps provided in the ancillary kit (see Figure 9.3 on page 9-3 to locate tyrap anchor hole locations).
  • Page 49 NX300 Installation Manual Installing control/monitor wiring Figure 9.3: Remote Interface Connections REMOTE Digital Arrowhead tyrap INTERFACE Inputs anchor holes External +15V IN Analog Outputs Digital Inputs Issue 3.0 2012-11-01 Page 9-3...
  • Page 50 NX300 Installation Manual Installing control/monitor wiring Figure 9.4: Web Interface Connection Secure to existing ETHERNET cable with tyraps CABLE ENTRY Page 9-4 Issue 3.0 2012-11-01...

  • Page 51: Commissioning Tasks

    4. Confirm that the taps are configured correctly. 5. Remove the rear filters from the ttransmitter and spray them with filter coat adhesive spray (Nautel Part # HQ59), located in the ancillary kit. Re-install the rear filters on the transmitter.

  • Page 52: Commissioning

    NX300 Installation Manual Commissioning tasks 7. Verify that all panels are installed, and ensure that their attaching hardware is firmly tightened. WARNING: If a jumper is placed between interlock inputs J6-1/2 on the control/ interface pwb, safety features controlled by the external interlocks will be disabled.
  • Page 53 11. Check the reflected power level. It should be near 0 W. 12. Set up preset modes. See the NX300 Operating and Maintenance Manual. 13. Set the correct time and date on the AUI display. See the NX300 Operating and Maintenance Manual.

  • Page 54: Going On-Air

    2. Connect the transmitter's RF output to an antenna system (or verify that the current connection is intact). Ensure that a ferrite toroid (Nautel Part # LX63) is installed on the RF coaxial hardline at the transmitter’s output. 3. Turn the transmitter’s ac power back on.

  • Page 55: Parts And Tools

    Parts supplied by Nautel Ancillary parts kit An ancillary parts kit is shipped with the NX300. This kit contains hardware needed during the installation process. The kit includes toroids, spare fuses, screws and other miscellaneous hardware. Issue 3.0 2012-11-01...

  • Page 56: Parts Not Supplied By Nautel

    See “NX300 transmitter manuals” on page xii. 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 57: Tools For Installation

    NX300 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 58 NX300 Installation Manual Parts and tools Page 11-4 Issue 3.0 2012-11-01...

  • Page 59: Pre-Installation Consulting

    Extended warranties - see page 12-7 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 NX300 transmitter. For support, contact Nautel Customer Service and request assistance (“On-site support”...
  • Page 60 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 61: Online Documentation

    On-site support If you require on-site assistance, Nautel’s field support specialists can help you prepare your site and ensure that your NX300 transmitter installation can proceed as quickly as possible. For more information about on-site support, including scheduling and pricing, contact Nautel Customer Service: •...

  • Page 62: Standard Warranty

    NX300 Installation Manual Pre-installation / Installation assistance 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. Training can also be provided at the customer’s facility, and training the customer’s technical staff on the customer’s transmitter.
  • Page 63 7. Nautel shall have the privilege of investigating whether failures have been caused by factors beyond its control. 8. Nautel shall in no event be liable for any consequential damages arising from the use of this equipment. 9. When requesting a warranty repair/replacement, please provide complete and accurate information.
  • Page 64 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 65: Extended Warranties

    Extended warranties Nautel's standard 13-month warranty provides excellent coverage and satisfies most customers’ needs. However, if you want extended coverage, Nautel offers one and two-year Extended Warranty Plans to cover electrical and mechanical repairs or replacements for all Nautel equipment.
  • Page 66 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 67: List Of Terms

    NX300 Installation Manual List of terms Section 13: List of terms This section defines some of the terms that are used in Nautel documentation. Analog to Digital Converter. ADC. Audio Engineering Society/European Broadcasting Union (AES/EBU) is the name of a AES-EBU.
  • Page 68 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 NX300 allows you to pre-program multiple presets. A complete loss of RF output power, caused by any one of a variety of faults, including Shutback.

  • Page 70: Issue 3.0 2012-11-01

    Phone: +1.902.823.3900 or Fax: +1.902.823.3183 Nautel Inc. 201 Target Industrial Circle Bangor, Maine USA 04401 Phone: +1.207.947.8200 Fax: +1.207.947.3693 Customer Service (24-hour support) +1.877.628.8353 (Canada & USA only) +1.902.823.5100 (International) Email: support@nautel.com Web: www.nautel.com © Copyright 2013 NAUTEL. All rights reserved.

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