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XR6/XR3 Pre-installation Manual

Page x

Issue 3.0 2009-07-15

XR6/XR3 Pre-installation Manual, XR6/XR3-PREINST.

The Pre-installation Manual provides

instructions and reference information needed when planning and preparing for the installation of an
XR6/XR3 transmitter.

Nautel Site Protection Manual.

The Site Protection Manual provides detailed information

about protecting your site from lightning-related hazards.

XR6/XR3 Installation Manual, XR6/XR3-INST.

The Installation Manual provides instructions

and reference information needed when installing an XR6/XR3 transmitter.

XR6/XR3 Operating and Maintenance Manual, XR6/XR3-OPS-MAINT.

The Operating and

Maintenance Manual provides instructions for operating, maintaining and troubleshooting
an XR6/XR3 transmitter. It also provides reference information needed when performing diagnostic
procedures.

XR6/XR3 Troubleshooting Manual, XR6/XR3-TROUBLE.

The Troubleshooting Manual

provides detailed technical information about the XR6/XR3 transmitter, including electrical
schematics and mechanical drawings.

Nautel website / Online resources

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. Registration is available online and is required.

Documentation: online and printed

The website’s NUG section provides online access to all the documentation for your XR6/XR3.
Documentation is provided in Acrobat (PDF) format. You can use the documentation online or print
the sections that you need.

When using online documents:

•

Click on blue text (hyperlinks) to jump to a related section, or to get additional information
(e.g., view a term’s definition).

•

To search a document to find keywords, use

Find

in Acrobat Reader’s

Edit

menu.

•

To quickly find a specific section, click the section in the PDF file’s

Bookmarks

list.

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Содержание XR6

Страница 1: ...XR6 XR3 Transmitter Pre installation Manual Document XR6 XR3 PREINST Issue 3 0 2009 07 15 Status Preliminary...

Страница 2: ...blank...

Страница 3: ...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 The comparisons and other information provi...

Страница 4: ...blank...

Страница 5: ...1 2 Pre installation tasks 2 1 Preparing for installation 2 1 Selecting a location for the transmitter 2 2 Installing an antenna feedline 2 3 Physical requirements 3 1 Clearances 3 1 Dimensions 3 2 We...

Страница 6: ...MHz frequency reference 7 2 RF output requirements 8 1 Antenna feed cable 8 1 Antenna system 8 3 Parts and tools 9 1 Contacting Nautel 9 1 Parts supplied by Nautel 9 1 Parts not supplied by Nautel 9 2...

Страница 7: ...ge vii Pre installation assistance 11 1 Pre installation consulting 11 1 Installation and commissioning service 11 1 Online documentation 11 3 On site support 11 3 Training 11 3 Standard warranty 11 4...

Страница 8: ...XR6 XR3 Pre installation Manual Page viii Issue 3 0 2009 07 15...

Страница 9: ...stomers over the Internet and by telephone Nautel s customer support team will answer your questions and work with you to identify and resolve problems For technical support call the Customer Support...

Страница 10: ...oting Manual provides detailed technical information about the XR6 XR3 transmitter including electrical schematics and mechanical drawings Nautel website Online resources The Nautel website provides u...

Страница 11: ...ation Manual Issue 3 0 2009 07 15 Page xi When using printed documents To find keywords go to the Index section at the end of the manual To find a specific term go to the List of Terms section near th...

Страница 12: ...XR6 XR3 Pre installation Manual Page xii Issue 3 0 2009 07 15...

Страница 13: ...t the system is live and serious danger is present Mount the transmitter ac power disconnect switch breaker close to the transmitter so that it can be reached quickly in an emergency Clearly label the...

Страница 14: ...devices are specifically identified with BeO in the Description column of the Troubleshooting Manual s parts list s Do not cut crush or grind devices because the resulting dust may be hazardous if inh...

Страница 15: ...f 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...

Страница 16: ...el does not offer first aid training since the hazards associated with high voltage and RF energy are not specific to the transmitter However the customer should provide first aid training to all per...

Страница 17: ...near the feedline antenna and tower At some sites these fields may cause biological effects including the heating of body tissues Intense fields can also create dangerous high voltages on ungrounded c...

Страница 18: ...in the transmitter s ac power feed to prevent over voltage from entering the transmitter Lightning protection The transmitter is designed to resist lightning strike damage However intense or repeated...

Страница 19: ...o 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...

Страница 20: ...XR6 XR3 Pre installation Manual Page xx Issue 3 0 2009 07 15...

Страница 21: ...configure exciters on a preset for a specific operating mode e g exciter A for conventional AM and exciter B for IBOC The power output can also be scheduled to correspond with authorized daytime power...

Страница 22: ...is optional Ac power The XR6 XR3 variable power transformer can be set to use a range of input voltages and power frequencies as described in Section 2 Installing the power transformer on page 2 1of...

Страница 23: ...NxLink module provides an Ethernet interface between the XR6 XR3 and a LAN local area network This interface allows remote control and monitoring of the XR6 XR3 from a computer Safety interlocks Optio...

Страница 24: ...XR6 XR3 Pre installation Manual Description Page 1 4 Issue 3 0 2009 07 15...

Страница 25: ...that is if the site is already set up for a transmitter go to Step 7 If you are upgrading a site verify the feedline the lightning protection systems and the ac power service Refer to the Nautel Site...

Страница 26: ...going to use an external frequency reference ensure that the reference source meets required specifications 14 Prepare to integrate the XR6 XR3 transmitter into your station control circuitry if requi...

Страница 27: ...ion reference ground on page 5 4 3 Install lightning protection devices For more information about lightning protection refer to the Nautel Site Protection Manual 4 Pass the center conductor and the s...

Страница 28: ...XR6 XR3 Pre installation Manual Pre installation tasks Page 2 4 Issue 3 0 2009 07 15...

Страница 29: ...be acceptable if special arrangements are made to install the transformer No clearance is required on either side of the transmitter Check the clearance to ensure that you will be able to open all do...

Страница 30: ...XR6 XR3 Pre installation Manual Physical requirements Page 3 2 Issue 3 0 2009 07 15 Dimensions Figure 3 1 XR6 XR3 transmitter dimensions 184 0 cm 72 5 in 59 0 cm 23 1 in 84 0 cm 33 0 in...

Страница 31: ...age 3 3 Figure 3 2 XR6 XR3 transmitter cabinet top view 7 1 cm 2 8 in 34 8 cm 13 7 in 6 6 cm 2 6 in 33 0 cm 13 0 in Front AUDIO AC IN RF OUTPUT CONTROL Rear Minimum clearance to rear of transmitter 18...

Страница 32: ...al Physical requirements Page 3 4 Issue 3 0 2009 07 15 Figure 3 3 XR6 XR3 transmitter cabinet seen from below looking up 59 0 cm 23 1 in 8 5 cm 3 35 in AC IN Transformer 8 5 cm 3 35 in Rear Anchor Poi...

Страница 33: ...r Module Crate contents Uncrated weight Crated weight Main cabinet no RF power modules or power transformer 125 kg 275 lbs N A Main cabinet with 1 RF power module no power transformer 145 kg 319 lbs 2...

Страница 34: ...XR6 XR3 Pre installation Manual Physical requirements Page 3 6 Issue 3 0 2009 07 15...

Страница 35: ...The XR6 XR3 uses redundant cooling fans and hot air convection to ensure effective cooling Cool air is drawn in through a filter in the lower portion of the back of the transmitter Air circulates int...

Страница 36: ...ld not exceed 40 4 C 104 7 F Ensure that hot air from the transmitter is not drawn back into the transmitter s cool air intake Cooling plant requirements Table 4 1 Cooling plant requirements for the X...

Страница 37: ...power and then multiply the product by 3 413 Closed loop or forced air cooling systems Closed loop or forced air cooling systems can be used so long as the air is well filtered to prevent dust and ins...

Страница 38: ...XR6 XR3 Pre installation Manual Cooling requirements Page 4 4 Issue 3 0 2009 07 15...

Страница 39: ...e number of phases and specific voltage range when you order the transmitter Nominal voltage minimum and maximum The primary winding of the main ac power transformer contains taps to accommodate volta...

Страница 40: ...o ensure adequate regulation Ac power switch Install an external ac power disconnect between the ac power source and the transmitter Nautel can provide a suitable ac power disconnect if required For s...

Страница 41: ...g protection refer to the Nautel Site Protection Manual Recommended configuration for three phase ac power source Use a 4 wire Wye star configuration with the three phases balanced to ground Wiring Ta...

Страница 42: ...r is being used connect the transmitter cabinet s designated safety ground point the shield of the coaxial feedline and the ground connection of the power source directly to the surge protector using...

Страница 43: ...o the XR6 XR3 Operating and Maintenance Manual In addition you can control the on off status the active A B exciter the preset RF power level the power level adjustment and system alarm reset remotely...

Страница 44: ...pproximately 250 V 150 V or 91 V for three phase XR6 transmitters to correspond to the B voltage level currently in use For three phase XR3 transmitters the alarm threshold voltage is factory calibrat...

Страница 45: ...n the microcontroller will attempt a changeover to exciter B If it cannot or if the exciter transfer function is set to manual then this fault will cause a shutback Mod driver fault B This fault is re...

Страница 46: ...a predefined time limit that must expire before the cutback level returns to the previous level e g level three back to level two If there are no further cutbacks this process continues until Level 0...

Страница 47: ...gers this fault if that value is greater than 150 C 302 F While this fault is on RF power will not be available The temperature is assumed to rise 20 C 68 F for each cold start and 10 C 50 F for each...

Страница 48: ...while ac power is ON 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 monit...

Страница 49: ...a normally open momentary switch The switches must be configured to operate as a single ended input using the transmitter s 24 V dc as the source or as a differential input using an external dc power...

Страница 50: ...cal status is set to remote unless otherwise noted That setting can only be made by a local user Inputs are toggled between states by an active pulse unless otherwise noted To ensure proper operation...

Страница 51: ...C input otherwise analog input is selected J3 25 IBOC Input Select B input Sets IBOC Analog for Exciter B Continuous active sig nal selects IBOC input otherwise analog input is selected J2 10 Preset S...

Страница 52: ...on to continue decreasing the power Remote status and alarm indications Outputs that indicate the status of operator controlled circuits are available on connectors J2 and J3 on the remote interface P...

Страница 53: ...ck Indicates that a shutback is currently active J3 3 RF On Status Indicates that the RF On LED is active showing the operator s request for RF power J3 5 6 7 8 9 10 Preset 1 6 Status Indicates which...

Страница 54: ...age is a pure square law function and will be 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...

Страница 55: ...ce 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 interf...

Страница 56: ...XR6 XR3 Pre installation Manual Control and monitoring Page 6 14 Issue 3 0 2009 07 15...

Страница 57: ...oth exciters A B The external RF drive must be the carrier frequency c within 5 Hz or 5 parts per million ppm whichever is greater when it is not being modulated have a peak to peak amplitude of betwe...

Страница 58: ...ctor J6 2 Configure either or both exciter RF synthesizer s to operate on Ext RF drive by setting the E4 jumper s to 1 2 External 10 MHz frequency reference You can apply an externally generated 10 MH...

Страница 59: ...wall or bulkhead Gas insulation flashovers can occur in poor installations Ensure that this part of your installation is installed by professionals experienced with high power radio frequency circuit...

Страница 60: ...a conductive path and reduces the effectiveness of the insulator Pitting and erosion of the insulator may also occur To reduce the possibility of tracking damage clean all insulator surfaces periodica...

Страница 61: ...DRM systems require better performance from antenna systems To ensure the proper operation during digital broadcasting ensure that the VSWR does not exceed 1 4 1 at the carrier frequency 15 kHz In or...

Страница 62: ...XR6 XR3 Pre installation Manual RF output requirements Page 8 4 Issue 3 0 2009 07 15...

Страница 63: ...ement program see page 9 2 Tools for installation see page 9 3 Contacting Nautel You can reach Nautel to order parts or for technical assistance at Nautel Limited 10089 Peggy s Cove Road Hackett s Cov...

Страница 64: ...tor wiring including the associated terminating devices con duit and conduit clamps All electrical power cables including conduit terminating devices and conduit clamps Parts ordering You can order re...

Страница 65: ...ls 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 Metric and Imperial socket se...

Страница 66: ...XR6 XR3 Pre installation Manual Parts and tools Page 9 4 Issue 3 0 2009 07 15...

Страница 67: ...on Automatic antenna transfer control unit see page 10 2 Automatic switching system see page 10 4 Dynamic carrier control unit see page 10 4 Spares see page 10 4 Documentation see page ix Contacting N...

Страница 68: ...ite Place the surge protector as close as possible to the ac service entrance minimizing both the physical and electrical distance between the service entrance and the surge protector For detailed inf...

Страница 69: ...than 15 kW RF output power between an antenna and a dummy load Typically an automatic antenna transfer control unit controls the RF contactor s position by applying ac voltage to the set or reset sole...

Страница 70: ...when the instantaneous modulation level of the transmitter drops below a threshold The DCC unit supports Amplitude Modulation Companding AMC Dynamic Amplitude Modulation DAM and Dynamic Carrier Contr...

Страница 71: ...wer module that has been removed from the transmitter and placed on a workbench The test cable provides low level safe voltages that allow the diagnosis of RF power module problems this is a unique fe...

Страница 72: ...llation Manual Accessories Page 10 6 Issue 3 0 2009 07 15 Plug in power modulator unit The power modulator unit is a 2 000 watt plug in unit compatible with all XR series transmitters Figure 10 5 Powe...

Страница 73: ...Installation and commissioning service Nautel offers an installation and commissioning service to customers who want assistance with configuring and commissioning a new Nautel transmitter After the cu...

Страница 74: ...test equipment has been made available at the site Two channel oscilloscope with probes Audio signal generator Distortion analyzer Spectrum analyzer Modulation monitor Frequency counter 50 test load r...

Страница 75: ...roadcast training programs satisfy your day to day knowledge requirements Students participating in Nautel s broadcast transmitter or RF basics training programs earn one SBE credit for each completed...

Страница 76: ...n the design parameters and b When the equipment is installed and adjusted according to Nautel s prescribed procedures as stated in the instruction manual 2 Nautel shall provide replacements for all P...

Страница 77: ...the information requested for Equipment Being Returned to Nautel on page two of this warranty as is practical The information identified by an asterisk is the minimum required Technical assistance Nau...

Страница 78: ...ist price USA customers are required to contact our Bangor Maine facility Canadian and overseas customers should contact our Nova Scotia Canada facility Equipment being returned to Nautel For all equi...

Страница 79: ...eds 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 Coverage The Extend...

Страница 80: ...nsmitter is still covered by its original 13 month warranty period you can contact Nautel by telephone fax mail or email with the model number serial number and date of purchase Once you purchase a Na...

Страница 81: ...B The high voltage dc generated by the transmitter s ac power supply for use within the transmitter The B voltage is used to supply the transmitter s modulators and other transmitter circuitry Cutbac...

Страница 82: ...presets Shutback A complete loss of RF output power caused by any one of a variety of faults including high VSWR low B voltage high RF current RF drive failure external interlock or spark gap Surge p...

Страница 83: ...1 antenna considerations 8 1 antenna feedline 2 3 antenna tower 2 1 antenna transfer control unit NX1 10 2 antenna tuning 8 3 assistance onsite 11 3 assistance technical 11 1 audio processing 5 2 aut...

Страница 84: ...ectrodes 8 1 electrostatic protection 2 1 emergency on off switch 5 2 engineering support 11 1 erosion of an insulator 8 2 exciter active 6 1 6 7 external control and monitor wiring 9 2 external DC po...

Страница 85: ...2 1 logic true condition 6 10 M mating connector RF 2 2 minimum clearances 3 1 modulation 5 2 8 2 modulation monitor 6 13 modulation 8 3 module testing cable XR PMTK 10 5 moisture damage to insulator...

Страница 86: ...7 6 13 RF contactor 10 4 RF divider on insulators 8 2 RF feedline 2 2 2 3 RF output coaxial cable 9 2 RF output voltage waveform 6 12 RF power preset 6 1 6 7 room transmitter 4 2 S safety interlocks 2...

Страница 87: ...1 transmitter room 4 2 triple junctions RF feedline 8 2 tuning antenna 8 3 typical program content 6 8 6 9 U uncrated weight 3 5 upgrading a site 2 1 upper rear panel 3 1 V varistor 5 3 voltage feed...

Страница 88: ...XR6 XR3 Pre installation Manual Page IX 6 Issue 3 0 2009 07 15...

Страница 89: ......

Страница 90: ...823 3900 or Toll Free 1 877 6NAUTEL 6628835 Canada USA only 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...

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