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Nautel NV7.5, Operation And Maintenance Manual

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Nautel NV7.5 Operation And Maintenance Manual Download Page 116

NV10/NV7.5 Operations and Maintenance Manual

Operating the transmitter

Page 2-84

Issue 3.4  2016-08-03

Note: 
Audio inputs are factory set using a high accuracy source and do not typically require 
user adjustment. Changes to factory calibrations could cause low or excessive 
modulation and 
noncompliance to strict regulatory limits

Summary of Contents for NV7.5

Page 1: ...NV10 NV7 5 Transmitter Operations and Maintenance Manual Document NHB NV7 5 NV10 OPS 3 4 Issue 3 4 2016 08 03 Status Standard...

Page 2: ......

Page 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...

Page 4: ......

Page 5: ...v Toxic Hazards 1 xiv Other Hazards 1 xiv Safety Precautions xv Personal Safety 1 xv Site Safety 1 xvi Equipment Safety 1 xviii Description 1 1 Ac dc power stage 1 2 Control monitor stage 1 3 RF drive...

Page 6: ...er settings 2 94 Remote I O page 2 115 Routine maintenance 3 1 Scheduled maintenance 3 1 Replacing an air filter 3 3 Performing on air checks 3 5 Replacing the control interface PWB battery 3 6 Replac...

Page 7: ...ection 2 updated to support software release 4 0 Section 3 expanded air filter descriptions to include M7 MERV 7 filters as suitable replacements 3 2 2013 10 01 Added nautel Phone Home to user Setting...

Page 8: ...NV10 NV7 5 Operations and Maintenance Manual Page viii Issue 3 4 2016 08 03...

Page 9: ...tructed during a troubleshooting task see Section 5 Test and adjustment on page 5 1 Performing procedures When using procedures in this manual perform each step in sequence If you are asked to see ano...

Page 10: ...on page 10 1 of the NV10 NV7 5 Pre Installation Manual NV10 NV7 5 transmitter manuals The NV10 NV7 5 documentation suite includes the following documents NV10 NV7 5 Pre installation Manual NV10 NV7 5...

Page 11: ...og into in order to access the Nautel customer newsletter product manuals frequently asked questions FAQ information sheets and information about field upgrades Documentation online and printed The we...

Page 12: ...NV10 NV7 5 Operations and Maintenance Manual Page xii Issue 3 4 2016 08 03...

Page 13: ...one who has not turned off the power that the system is live and serious danger is present DANGER HIGH VOLTAGE Indicates dangerous voltage in excess of 72 volts capable of causing a fatal electrical s...

Page 14: ...equipment that contain beryllium oxide ceramic which is non hazardous during normal device operation and under normal device failure conditions These devices are specifically identified with BeO in t...

Page 15: ...mber 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...

Page 16: ...id 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 a...

Page 17: ...smitters and their antenna systems create intense radio frequency fields at the transmitter site particularly near the feedline antenna and tower At some sites these fields may cause biological effect...

Page 18: ...discharges during servicing Train all service personnel to ground themselves to bleed off any static charge before opening the transmitter or touching any exposed components Provide a grounding wand...

Page 19: ...r Do not place the transmitter under water pipes drains or sprinklers Keep any equipment that generates heat like the transmitter away from flammable materials like ceiling panels cubicle dividers and...

Page 20: ...NV10 NV7 5 Operations and Maintenance Manual Page xx Issue 3 4 2016 08 03...

Page 21: ...is subdivided into four basic stages Ac dc power stage Control monitor stage see page 1 3 RF drive stage see page 1 4 RF power stage see page 1 6 NV10 NV7 5 electrical schematics Some descriptions in...

Page 22: ...U4 fan power supply modules A U7 and B U8 IPA power supply modules A U9 B U10 and dual PA power supply modules U12 through U19 for each of the four RF power modules There is also a PS interface PWB a...

Page 23: ...7 V is applied as Fan V Sample A and B to the control monitor stage for metering and fan PS fault detection The power supply distribution PWB also interfaces between SBC AUI power supplies U1 and U2 a...

Page 24: ...ions It also contains LEDs that serve as an alternate means to monitor status local remote and RF on off forward power level percentage indicators from 10 to 100 of maximum RF output power and various...

Page 25: ...ied from the control monitor stage that controls relay A5A1K1 When exciter A is selected as the main RF drive source the Exciter Relay Control input is open circuit and relay A5A1K1 will be de energiz...

Page 26: ...lifier The IPA output is sampled then split to drive the module s eight PAs The IPA Volts and PA Volts inputs from the associated switching power supply modules control the RF output of the IPA and ei...

Page 27: ...A1J1 and Refld Pwr Sample A2J1 signals applied to the control monitor stage for protection and monitoring RF monitor PWB A3 provides a nominal 2 2 V NV10 or 1 8 V NV7 5 rms at 10 kW NV10 or 7 5 kW NV...

Page 28: ...NV10 NV7 5 Operations and Maintenance Manual Description Page 1 8 Issue 3 4 2016 08 03...

Page 29: ...PLY B OPTIONAL LV PWR PWR SUPPLY SUPPLY SUPPLY SBC AUI LV PWR PWR SUPPLY PWR SUPPLY PWR SUPPLY PWR SUPPLY PWR SBC PWR AUI PROBE OUTPUT EXCITER A AC POWER AC POWER 3 PHASE FAN SUPPLY FAN SUPPLY SBC AUI...

Page 30: ...NTERFACE CONSOLE COMPOSITE SCA MPX L R SCA GENERATOR 2 x AES EBU TOSLINK OPTICAL EXTERNAL 10MHz REFERENCE FPGA TCXO OR OCXO EXCITER PWB RF DAC PLL VCSO FILTER PREAMP BIAS DAC BIAS POWER VSWR PROTECTIO...

Page 31: ...Issue 3 4 2016 08 03 Page 1 11 Figure 1 4 RF Power Module Block Diagram FWD FWD 6 4 1 4 WAY PWR PWR 7 8 5 2 3 4 WAY SPLITTER 4 WAY COMBINER FWD PWR OUTPUT B2060005 VB IPA 4 WAY SPLITTER COMBINER PWR S...

Page 32: ...NV10 NV7 5 Operations and Maintenance Manual Issue 3 4 2016 08 03 Page 1 12...

Page 33: ...2 15 Menu page describing transmitter operations see page 2 16 Logs page viewing transmitter log see page 2 17 Viewing tool menu panels see page 2 26 Viewing real time meters see page 2 45 Presets ed...

Page 34: ...7 inch colour LCD screen mounted on the front of the control cabinet Figure 2 1 The AUI is controlled via touch screen that you can also access using a PC and a web browser This section includes the f...

Page 35: ...page 2 69 System settings see System Settings on page 2 78 User accounts see User accounts on page 2 88 Changeover see Changeover page on page 2 92 User settings see User settings on page 2 94 Remote...

Page 36: ...in window In the Language field press the down arrow to review a drop down menu displaying the available language options and select one In the User field enter the username Default is Nautel In the P...

Page 37: ...he down arrow to review a drop down menu displaying the available language options and select one In the User field enter the username Default is Nautel In the Password field enter the password Defaul...

Page 38: ...NV10 NV7 5 Operations and Maintenance Manual Operating the transmitter Page 2 6 Issue 3 4 2016 08 03...

Page 39: ...e as Menu Transmitter Status page 2 66 Logs page 2 17 Exciter TCXO page 2 81 Audio Input Calibration page 2 83 Turn On Delay page 2 85 Defaults page 2 85 External 10MHz page 2 106 FM Polarity page 2 8...

Page 40: ...Issue 3 4 2016 08 03 Page 2 7 Page 2 8 Blank...

Page 41: ...AUI pages on the front panel of the transmitter regardless of the login status however only users with the appropriate permission level can access functions that alter the transmitter control settings...

Page 42: ...ist View Choose meters for display page 2 45 Presets Edit user defined presets page 2 50 Transmitter Status View transmitter s current active faults and operational status page 2 66 Factory Settings V...

Page 43: ...ve preset and reflected power levels as well as the operating mode FM FM HD HD etc and carrier frequency see Presets editing operational settings on page 2 50 Press Menu Presets bottom panel to open t...

Page 44: ...pen the Menu page which allows navigation to various other pages see Menu page describing transmitter operations on page 2 16 Status Press to open the Transmitter Status page see Viewing transmitter s...

Page 45: ...nd restore any RF power modules and associ ated power supplies that were inhibited but are now alarm free Change User Log Out Press to display a login menu Enter your username and pass word then press...

Page 46: ...ner of one panel to close an existing panel and then press in the blank space to display a menu of panels see Viewing tool menu panels on page 2 26 Meters Displays the real time meters that provide a...

Page 47: ...ome page The Home page is the first screen to appear when you login into the AUI You can return to the Home page from any screen by pressing on the logo upper left corner or by pressing Menu Home Figu...

Page 48: ...re 2 7 Menu Page Select Home to return to the home page see Figure 2 6 on page 2 15 Choose Presets to open screens related to presets see Editing or creating presets on page 2 51 Select Factory Settin...

Page 49: ...date and time enabling and configuration of NTP servers and setting call sign see User settings on page 2 94 Press Remote I O to access a page that allows assignation of remote digital inputs and out...

Page 50: ...tifies the alarm name State indicates whether the alarm state is active red bell or cleared green check mark and in some cases indicates whether the RF was turned on or off This column will also displ...

Page 51: ...formation can span over more than one page The current page number is identified above the table on the right side of the screen For example Page 1 4 means that the displayed page is one out of a poss...

Page 52: ...ess to determine filter parameters by date and frequency Copy Logs Press to copy the selected logs remote view only Delete Press to remove all selected logged events Statistics Press to display detail...

Page 53: ...vice Controller displays controller events only Exciter A displays exciter A events only Exciter B displays exciter B events only RF Module displays applicable RF Module events only Activate a log mod...

Page 54: ...s Word Excel Notepad etc Press OK or Cancel to close and return to the Transmitter Log Figure 2 11 Log Manager Copying Logs Deleting logs You can delete all events or a selection of events by clicking...

Page 55: ...event type Use the scroll bar to move through the list or the up and down arrow buttons to the right of the scroll bar if applicable If the event log display spans more than ten rows use the arrows on...

Page 56: ...ence i e Events column is 1 then the time in the Earliest column will be the same as the time in the Latest column If an alarm has more than one occurrence e g Events column is 4 then the Earliest col...

Page 57: ...gend The Legend tab is different from the other tabs Press the Legend tab to display a window describing the meaning of the symbols that appear in the State and Severity columns of the Logs page see F...

Page 58: ...to 4 panels of instrument information Users can choose which panels to display from 9 possible information panels see Figure 2 15 This section include the following topics Describing instrument panel...

Page 59: ...ating the transmitter Issue 3 4 2016 08 03 Page 2 27 To view the instrument panel options close an existing panel by pressing X upper right corner and then press the icon in the blank space to open th...

Page 60: ...7 EQ Filter Delay Displays the delay of the modulator s EQ filter across its bandwidth See page 2 38 AM AM Correction Displays the amplitude compensation being applied to the magnitude signal See page...

Page 61: ...rsor in the panel touch the screen where you want the cursor see Figure 2 17 on page 2 30 The cursor position is noted in the upper right hand corner of the panel e g frequency and amplitude for the s...

Page 62: ...more information when maximized e g Signal Constellation see Figure 2 19 on page 2 31 To display additional settings in the Spectrum Analyzer panel touch the cog button see Figure 2 16 on page 2 29 D...

Page 63: ...Maintenance Manual Operating the transmitter Issue 3 4 2016 08 03 Page 2 31 Figure 2 18 Instrument Panel Expansion Example 1 Figure 2 19 Instrument Panel Expansion Example 2 Maximize Minimize buttons...

Page 64: ...302 018 2 FCC CFR 47 Part 73 317 and IC BETS 6e Touch on the panel to display a cursor in the approximate area The cursor position frequency and amplitude is noted in the upper right hand corner of t...

Page 65: ...NV10 NV7 5 Operations and Maintenance Manual Operating the transmitter Issue 3 4 2016 08 03 Page 2 33 Figure 2 20 Spectrum Analyzer Peak Cog...

Page 66: ...p frequencies of the analyzer with the carrier fre quency always at the center Allowable range is 10 1200 kHz Default setting is 1000 kHz Averages determines the number of averages that the analyzer p...

Page 67: ...xciter includes a fixed equalizer to optimize audio performance There are three EQ instrument panels available in the Tool Menu EQ Frequency see Figure 2 22 EQ Impulse Response see Figure 2 23 on page...

Page 68: ...modulating signal A dashed line is displayed at the 0 dB level This tool is useful for installations featuring filter coefficients loaded to compensate for a channel combiner response Touch on the pan...

Page 69: ...ime domain This is a static display tool so the screen image is not fluid and will not change Touch on the panel to display a cursor in the approximate area The cursor position magnitude and time is n...

Page 70: ...modulator s EQ filter across its bandwidth Touch on the panel to display a cursor in the approximate area The cursor position delay and frequency is noted in the upper right hand corner of the panel T...

Page 71: ...x axis represents the signal amplitude and the y axis represents the gain correction applied for a given amplitude value A look up table LUT index value of 0 represents low transmitter output power RF...

Page 72: ...s IPA PA stage phase non linearity versus the output power For example in Figure 2 26 the transmitter output power is low so the curve in the plot shows positive phase correction Inversely a negative...

Page 73: ...the signal constellation display is representative of the transmitter output When the transmitter is off the display is representative of the forward path that will be transmitted Sub carrier group in...

Page 74: ...imize or minimize buttons as required Figure 2 28 Lissajous Plot Lissajous plot See Figure 2 28 This panel displays a Lissajous figure that represents either L left and R right audio content or a repr...

Page 75: ...Plot Power distribution plot See Figure 2 29 The exciter measures the relative power levels of the signal and determines the probability of exceeding a given power level relative to the average power...

Page 76: ...ursor in the approximate area The cursor position power gain and probability index is noted in the upper right hand corner of the panel Touch in other areas of this instrument panel to provide a coars...

Page 77: ...lected individually from the Meters List View page or saved in a meter list layout and set to default This section includes the following topics Describing the meter display on page 2 46 Accessing met...

Page 78: ...esent the active meters selected for display Each meter is a colour coded bar with minimum and maximum values see Figure 2 30 The current value for a meter is indicated by an arrow on the colour coded...

Page 79: ...section of the AUI screen To delete a meter from the Home page press X in the Meters window Figure 2 31 To review all the meter options press the meter list view shortcut button magnifying glass at t...

Page 80: ...ation window in tabular format see Figure 2 32 3 To choose individual meters for display in the Meters window of the Home page Select the device type name in the Transmitter Layout panel and select th...

Page 81: ...d meter list as the default for the current user account The symbol shows the default Press Save to overwrite the selected meter list with the currently displayed meters Press Load to display the mete...

Page 82: ...existing presets To view the Presets page select Presets in the Menu page This section includes the following topics Editing or creating presets on page 2 51 Loading presets on page 2 52 Understandin...

Page 83: ...ave changed since the last preset was loaded Current Settings are not saved through an ac power cycle when the transmitter recovers from an ac power loss it loads the preset that was last activated On...

Page 84: ...ent active operational preset or any preset that is referenced in the Remote I O menu as either a remote input or output Those links in the Remote I O menu must be deleted before the associated preset...

Page 85: ...ode Set the overall transmission mode Available options are FM an analogue only mode transmits a carrier frequency modulated with audio HD all digital mode this mode transmits the upper and lower digi...

Page 86: ...the digital carriers will be 1 10 of the total RMS power of the analog carrier HD PA Volts for FM HD HD and DRM modes enter value in volts between 25 0 V and 53 0 V This value sets the drain voltage a...

Page 87: ...ions and Maintenance Manual Operating the transmitter Issue 3 4 2016 08 03 Page 2 55 the spectrum Typical values are between 35 V and 50 V and depend on many variables such as power level frequency an...

Page 88: ...ersely smaller values result in improved efficiency but degrade the spectrum The default value is 50 V and typically does not change HD Power Boost for FM HD mode only Enable this setting to engage Na...

Page 89: ...r configuration via the MPX Level setting See page 2 58 for additional configuration information Primary Digital this source allows for further configuration via Digital Level Audio Mode Mono L R Mono...

Page 90: ...tereo applies to Left Right Mono Primary Digital or Secondary Digital sources selecting Stereo applies a 19 kHz pilot 15kHz Lowpass Filter applies to Left Right Mono Primary Digital and Secondary Digi...

Page 91: ...nd 20 used to reduce the modulation level of the main audio when SCAs are enabled typically for every 2 of SCA modulation the main audio modulation must be reduced by 1 Internal SCA1 2 Enable or disab...

Page 92: ...us SCA1 or SCA2 Mode select FM frequency modulated sub carrier typical or DSB SC double side band suppressed carrier Figure 2 38 Presets RDS RDS see Figure 2 38 RDS When Enabled all the selections li...

Page 93: ...rces only PS Code programme service code this is simply an eight character static display that represents the call letters or station identity name Most RDS capable receivers display this information...

Page 94: ...ata sources only Alternate Frequencies select None or 1 through 6 This allows a receiver to re tune to a different frequency providing the same station information when the first signal becomes too we...

Page 95: ...S Sync select Enabled Pilot Sync Phase if Pilot 1 PPS Sync is enabled enter value between 0 and 360 degrees typically 0 degrees Sample Output determines which sample signal will be present on exciter...

Page 96: ...ake on the loss of a modulating signal post the timeout period Select None no resulting action Inhibit inhibits the RF output and fans until the audio returns or Change Preset changes the active prese...

Page 97: ...0 defaulted to 120 Gain allowable range is 0 100 defaulted to 56 2 L R Limiter this look ahead limiter can be applied to the signal immediately before the stereo generator in the exciter It has a fixe...

Page 98: ...he Transmitter Status page see Figure 2 40 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 This...

Page 99: ...off air state When the Status button is amber one or more active alarms are indicating that the transmitter is still on air but may be at reduced power When the Status button is green no alarms are b...

Page 100: ...NV10 NV7 5 Operations and Maintenance Manual Operating the transmitter Page 2 68 Issue 3 4 2016 08 03 Figure 2 41 Reset Button...

Page 101: ...tion on the right side of the page This section includes the following topics System configuration on page 2 70 Transmitter type on page 2 71 Scaling on page 2 72 Thresholds on page 2 73 Redundant sup...

Page 102: ...er operates as part of a main standby or 1 backup for N other transmitters and is under the control of the SC1 system controller ALC Limit Allowable range is 0 135 with a typical value of 100 ALC limi...

Page 103: ...ransmitter type NV5 NV10 NV20 etc This setting is one time factory configured and cannot be changed Figure 2 44 Factory Settings Transmitter Type WARNING Device settings are established at the factory...

Page 104: ...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 Note FM and...

Page 105: ...nd touch the applicable field to enable editing The current threshold is displayed Enter the new threshold and press Apply to save changes Figure 2 46 Factory Settings Thresholds Transmitter Default V...

Page 106: ...V power supplies Select Yes default if the supply operates as a redundant set Select No if the supply is standalone Figure 2 48 Factory Settings Redundant Supplies WARNING Device settings are establi...

Page 107: ...r Balancing targets a reject power percentage of 0 75 or less of the transmitter s maximum power capability An IPA Balancing Recommended alarm will be generated if this percentage exceeds 1 5 While th...

Page 108: ...reject power that can sometimes not be compensated for with this function Note The Reject Power Percentage meter is only available in this functional menu The green amber red colours are simply to pro...

Page 109: ...es 1 through 5 from the factory supplied control tag The Bias Values fields accept only a decimal number format Enter the decimal number from the control tag or if your spare PA control tag specifies...

Page 110: ...rs via the System Settings page see Figure 2 51 which you access from the Menu page This section includes the following topics Reset on page 2 79 Upgrade software on page 2 80 Exciter TCXO on page 2 8...

Page 111: ...ght side of the page 2 Reset the items by pressing the appropriate key To reset the AUI advanced user interface press Reboot AUI To reset the active exciter press Reboot Active Exciter To reset the st...

Page 112: ...of the following sections and buttons Current Version indicates the current software version Select Upgrade File displays the available upgrade files uploaded to the transmitter Details opens a window...

Page 113: ...librate the internal TCXO to the external reference source equally they can manually enter the measured internal external offset value into the TCXO Offset Value field and press Apply If no external h...

Page 114: ...djustment in the field Auto Find Gain Press the Start button to automatically find the optimized gain while the transmitter is RF On and in the applicable preset mode injection level FM HD Low Inj Gai...

Page 115: ...inputs The peak meter value of each calibrated audio input Analog Left Peak Analog Right Peak MPX Peak MPX SCA Peak Int SCA1 Peak and Int SCA2 Peak will be displayed when the associated audio input so...

Page 116: ...mitter Page 2 84 Issue 3 4 2016 08 03 Note Audio inputs are factory set using a high accuracy source and do not typically require user adjustment Changes to factory calibrations could cause low or exc...

Page 117: ...It also stores the default Exciter power level based on transmitter type and default IPA output power referenced to 98MHz via the Power tab see Figure 2 59 on page 2 86 These settings are fixed and s...

Page 118: ...Bias IPA and PA default index values shown Figure 2 59 Defaults Power Note Default Exciter Power is transmitter specific NV3 5 NV5 11W NV7 5 NV10 25W NV15 NV20 65W and NV30 NV40 130W Default IPA Power...

Page 119: ...FM polarity This system setting see Figure 2 60 allows users to invert the polarity of the frequency modulation i e positive going modulation signal yields positive deviation or positive going modula...

Page 120: ...ures of the AUI using the User Accounts page see Figure 2 61 To view the User Accounts page select User Accounts from the Menu options This section includes the following topics Setting user permissio...

Page 121: ...inistrator to use this function Procedure to add a user see Figure 2 62 on page 2 91 1 Open the User Accounts page 2 Press Add bottom of the screen to open a small Add User window 3 Beside Username en...

Page 122: ...anging permissions You must be an Administrator to edit this function All users have permission to change their own username and password You can customize the permissions assigned to a user or simply...

Page 123: ...mentioned above except for administrating user accounts 5 Press Apply to assign the new permissions to the selected user Removing an account To remove a user account select the desired user from the U...

Page 124: ...cted for Standby Exciter For Auto Exciter Changeover select Yes if automatic changeover is desired or No if user selected manual changeover is desired Auto setting cannot be changed if the selected St...

Page 125: ...ge 2 93 In the Exciter Changeover Delay field enter the desired delay allowable range is 0 300 seconds defaulted to 1 second and press Set The time entered will be added to the pre existing fixed amou...

Page 126: ...ings This section includes the following topics Setting up the network on page 2 95 Email configuration on page 2 98 Notifications on page 2 100 Configuring exgine settings on page 2 101 SNMP configur...

Page 127: ...e 3 4 2016 08 03 Page 2 95 Figure 2 64 User Settings Page Setting up the network The Network Setup page see Figure 2 65 allows you configure parameters for connecting the AUI to your network Modify ne...

Page 128: ...anually Static IP or automatically by the access point i e a router through DHCP In either case the access point must be configured with the correct settings which match the settings on the AUI in ord...

Page 129: ...outer documentation for additional remapping information and instructions Status Identifies the status of the network Running transmitter is connected to a network and is functioning properly Not Runn...

Page 130: ...User Settings in the Home page 2 Select the Email Configuration option left side of the screen to display related information and associated parameters on the right side of the screen 3 Enter the foll...

Page 131: ...tion Required If your email server requires authentication to send emails select the check box and enter the appropriate Username and Password to authenticate If the check box is not selected the User...

Page 132: ...ge 2 Select the Notifications option left side of the screen to display a list of pre existing notifications on the right side of the screen 3 Choose from the following options Press Add to add create...

Page 133: ...ion see Figure 2 68 on page 2 102 Procedure to configure Exgine Settings 1 Open the User Settings page by pressing Menu User Settings in the Home page 2 Select the Exgine Settings option left side of...

Page 134: ...tead Mac Address Displays a number that serves as unique network adapter identifier This is set by the manufacturer and is displayed for informational purposes only It may be necessary to use this num...

Page 135: ...e UDP port where the SNMP agent checks for requests The default setting is 161 If your transmitter is behind a firewall you must open this port to use SNMP Read Community Enter the password for the SN...

Page 136: ...ps Settings A trap is an unsolicited message sent by an SNMP agent to an SNMP client when an alarm changes state turns on or off The Enable Traps check box must be selected to support this function Th...

Page 137: ...m the User Settings page From this page you can press Capture Meters reads all meter values Capture Alarms reads all active alarms Capture Presets reads the current active preset and Capture Settings...

Page 138: ...d be selected as this ensures that an alarm will be activated on the Status page should the external signal be lost If an external 10MHz source is not being used the default No setting should not be c...

Page 139: ...see Figure 2 73 allows selection of the input AES EBU 1 AES EBU 2 or Optical that is mapped to the primary and secondary digital inputs via the presets Audio Source setting Figure 2 73 User Settings...

Page 140: ...rs can 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 Use the Mask Type pull down menu to...

Page 141: ...is first installed and after replacing a backup battery Figure 2 75 User Settings Time Setup The Time Setup option allows users to set the exact time and date information as well as regional and time...

Page 142: ...ng location parameters and press Apply Press Cancel to discard changes Timezone automatically set based on Region Country and Zone selections Region select the appropriate region from the drop down me...

Page 143: ...ging servers Figure 2 76 User Settings NTP Servers Enabling NTP Enable the NTP function by selecting the Enable NTP checkbox Disable by de selecting the Enable NTP checkbox Press the Apply button to a...

Page 144: ...Displays the magnitude of jitter in ms between several time queries Managing NTP Servers The Manage Servers section displays the NTP server files that have been added You can Add to the list of NTP se...

Page 145: ...tions and Maintenance Manual Operating the transmitter Issue 3 4 2016 08 03 Page 2 113 Figure 2 77 User Settings Audio Low Thresholds Valid range 0 600 s Valid range 100 3 dB Valid range 0 600 s Valid...

Page 146: ...allows users to set a name that identifies the transmitter on the AUI This identification will be displayed in brackets on the top transmitter banner of the AUI see Figure 2 79 Enter the call sign or...

Page 147: ...5 Installation Manual for information on remote inputs and outputs and their factory default settings This section includes the following topics Digital inputs on page 2 116 Digital outputs on page 2...

Page 148: ...options and press OK to accept Not Assigned No effect on transmitter operation regardless of logic level RF On Off Same as pressing the RF On telling the system to provide RF power if pos sible or the...

Page 149: ...NV10 NV7 5 Operations and Maintenance Manual Operating the transmitter Issue 3 4 2016 08 03 Page 2 117 Preset NAME Selects the associated preset from a list of all pre defined presets as active...

Page 150: ...or causes a reset or selects B as appropriate Falling Edge Turn Off Set To A Logic 0 low or trailing edge de activates the input or selects A as appropriate Rising Edge Turn Off Set To A Logic 1 high...

Page 151: ...On Logic 1 high causes applicable preset to become active Active Low Turn On Logic 0 high causes applicable preset to become active Active High Decrease Logic 1 high causes a power decrease Active Low...

Page 152: ...rop down menu options Some digital output default examples if the selected channel is RF On Off the drop down options are Output Low When RF On Logic 0 low indicates the output is true RF is on Logic...

Page 153: ...ndicates the output is false Inactive Output Low When Inactive Logic 0 low indicates the output is true Inactive Logic 1 high indicates the output is false Active if the selected channel is Modulation...

Page 154: ...allowable range is 1 6 V defaulted to 6 V will be reflected in the other fields according to the following equation Current Value Full Scale Value x Full Scale Voltage Current Voltage Press Apply to...

Page 155: ...V10 NV7 5 at scheduled intervals The recommended minimum time between scheduled maintenance visits is three months Local operating and environmental conditions may dictate more frequent visits while i...

Page 156: ...tempt to scrub off dirt or oil If necessary dampen the cloth with distilled water When complete reconnect the DC INPUT plug to the monitor and re install the cover Checking hardware All hardware must...

Page 157: ...s 2 Unpack the new filter and inspect it for damage 3 Remove the old or damaged filter see Figure 3 1 on page 3 4 as follows For a front door air filter open the front door and remove the protective m...

Page 158: ...nce Manual Routine maintenance Page 3 4 Issue 3 4 2016 08 03 Figure 3 1 Replacing Air Filters FRONT VIEW REAR VIEW FRONT DOOR FILTER UPPER PANEL FILTERS 2 LOWER PANEL FILTER Quarter turn fasteners 3 p...

Page 159: ...r audio quality Check the spectral output of the transmitter using the front panel AUI s spectrum analyzer Take a portable receiver to different locations in your coverage areas to identify any proble...

Page 160: ...mm Panasonic CR2032 Procedure Perform the following steps to replace the battery 1 Ensure ac power is being applied to the transmitter 2 Gain access to the control interface PWB A1 by opening the fro...

Page 161: ...if ac power is turned off while the backup battery power is low The battery should be replaced while ac power is applied to the transmitter Interval Every 12 months Parts and tools Replacement battery...

Page 162: ...6 Close the front door 7 Check for any alarms on the AUI Battery related alarms should clear See Viewing transmitter status on page 2 66 Inspecting lightning protection systems You should inspect the...

Page 163: ...lly inspect the lightning arrestor to ensure that all connections are tight Also look for any sign of scoring or burning indications of possible damage from earlier lightning strikes 3 Using binocular...

Page 164: ...NV10 NV7 5 Operations and Maintenance Manual Routine maintenance Page 3 10 Issue 3 4 2016 08 03...

Page 165: ...l computer for direct connection or network computer with Win dows and Internet Explorer Web browser CAT5 Ethernet cable Upgrade software tgz or img file provided via email web download or flash card...

Page 166: ...the current compact flash card bottom edge of SBC Note the orientation of the card 4 Install the new card noting orientation and plug in SBC power connector P8 5 The AUI should boot up and the transm...

Page 167: ...Properties window select OK 6 In the Local Area Connection Properties window select OK 7 In the Local Area Connection Status window select Close 8 Close the Network Connections window Transfer softwar...

Page 168: ...on standard maintenance Page 4 4 Issue 3 4 2016 08 03 5 Navigate through the AUI to Menu System Settings Upgrade Software and press Browse Locate the software update tgz file and press Upload to load...

Page 169: ...he image then paste the image into a compatible application Paint Word etc The spectrum plot should indicate at least 3 dB of margin between the IBOC intermodulation products and the blue mask limit l...

Page 170: ...Maintenance Manual Non standard maintenance Page 4 6 Issue 3 4 2016 08 03 Figure 4 1 Spectrum Analyzer plot on AUI Figure 4 2 Presets Page Adjusting HD PA Volts setting margin between mask and spectr...

Page 171: ...change an NV10 NV7 5 RF output connector See Figures 4 1 4 2 and 4 3 as guides for assembly and disassembly 1 Determine the size of the new RF output connector and order the appropriate kit from Naut...

Page 172: ...r remove the adapter Nautel Part JS59 In this case proceed to Step 9 6 Remove the old output connector cup noting it is secured to the output power probe with an M6 hex screw 7 Install the new output...

Page 173: ...NV7 5 Operations and Maintenance Manual Non standard maintenance Issue 3 4 2016 08 03 Page 4 9 Figure 4 3 RF Output Connector Assembly Detail 3 1 8 inch EIA OUTPUT CONNECTOR CUP OUTPUT PLATE SPACER PL...

Page 174: ...NV7 5 Operations and Maintenance Manual Non standard maintenance Page 4 10 Issue 3 4 2016 08 03 Figure 4 4 RF Output Connector Assembly Detail 1 5 8 inch EIA OUTPUT CONNECTOR CUP OUTPUT PLATE SPACER P...

Page 175: ...5 Operations and Maintenance Manual Non standard maintenance Issue 3 4 2016 08 03 Page 4 11 Figure 4 5 RF Output Connector Assembly Detail 7 8 inch EIA OUTPUT CONNECTOR CUP OUTPUT PLATE SPACER PLATES...

Page 176: ...isable or lock out its ac power source 3 Open the rear door of the transmitter 4 Locate the ac power distribution assembly A6 see Figure 4 6 on page 4 12 Disconnect ac power cables A100W1P2 and A100W2...

Page 177: ...NV10 NV7 5 Operations and Maintenance Manual Non standard maintenance Issue 3 4 2016 08 03 Page 4 13 Figure 4 6 Ac Distribution Assembly Location AC DISTRIBUTION ASSEMBLY RIGHT SIDE VIEW...

Page 178: ...le shutbacks within a pre defined period DHCP Dynamic Host Carrier Protocol DSP Digital Signal Processing EEPROM Electrically Erasable Programmable Read Only Memory Foldback A reduction in RF output p...

Page 179: ...Operations and Maintenance Manual List of terms Page 5 2 Issue 3 4 2016 08 03 OFDM Orthogonal Frequency Division Multiplexing is a digital data encoding method that uses multiple narrowband carrier f...

Page 180: ...complete and permanent loss of RF output power Typically follows repeated cutback foldback or shutback events Surge protection panel An electrical panel that protects equipment from electrical surges...

Page 181: ...NV10 NV7 5 Operations and Maintenance Manual List of terms Page 5 4 Issue 3 4 2016 08 03...

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Page 183: ...l Free 1 877 6NAUTEL 662 8835 Canada USA only or 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 Custo...

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