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Appendix A

Technical Tip

TECHNICAL TIP (FOR INFORMATION ONLY)

Coaxial Cable & Antenna System Inspection with a
Frequency Domain Reflectometer

INTRODUCTION: This Technical Tip and user instruction manual
establishes the standards of operation for the personnel unfamiliar with
this unit to understand it, identify its parts, and operate it in accordance
with proper procedures, operating techniques, precautions and
limitations.

GENERAL INTRODUCTION:

(1) This Technical Tip procedure has the steps using a frequency domain
reflectometer to locate opens, shorts, improper crimps, bends,
moisture, loose connectors, and defective antenna elements that lead to
weak or intermittent RF operation. You can also use the FDR to test the
antenna elements from the equipment rack for troubleshooting or
directly at the antenna to make sure that reliable operation prior to
installation.

(2) This procedure can be done on the entire Radio Frequency (RF)
system’s coaxial cables and antenna as a unit or on individual
components.

(3) The FDR performs a Voltage Standing Wave Ratio (VSWR) or Return
Loss (RL) test by transmitting a continuous RF sweep of the cables and
antenna at their operating frequencies and then monitoring the
absorption of the wave by the antenna. The FDR identifies standing or
reflected waves due to loose connections, corrosion, moisture, or
defective cable, or faulty antenna which changes the system impedance
resulting in a reflected or standing wave. Standing waves not only
decrease output transmission, resulting in weak, intermittent operation,

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Содержание FlightHawk

Страница 1: ...FlightHawk RF Test Set Operation Manual Copyright 2020 by Bird Technologies Instruction Manual Part Number 920 7003A004 1 Rev P1...

Страница 2: ...to remove the RF transmission line while RF power is present WARNING Do Not Service Or Adjust Alone Under no circumstances should any person reach into an enclosure for the purpose of service or adjus...

Страница 3: ...cedure which if not correctly performed could result in personal injury CAUTION Caution notes call attention to a procedure which if not correctly performed could result in damage to the instrument Th...

Страница 4: ...nnect the unit to a PC USB port File transfer must be done using a USB Drive CAUTION Do not touch the center pin of the Antenna Test Port with bare hands water or emery cloth Otherwise damage may occu...

Страница 5: ...GURIDAD DEL INSTRUMENTO BENUTZUNG WIRD DAS GER T AUF ANDERE WEISE VERWENDET ALS VOM HERSTELLER BESCHRIEBEN KANN DIE GER TESICHERHEIT BEEINTR CHTIGT WERDEN UTILISATION TOUTE UTILISATION DE CET INSTRUME...

Страница 6: ...ES GER TES GELTEN NUR F R GESCHULTES FACHPERSONAL ZUR VERMEIDUNG GEF HRLICHE ELEKTRISCHE SCHOCKS SIND WARTUNGSARBEITEN AUSSCHLIE LICH VON QUALIFIZIERTEM SERVICEPERSONAL DURCHZUF HREN ENTRENTIEN L EMPL...

Страница 7: ...l is accurate at the time of publication If you should discover any errors or if you have suggestions for improving this manual please send your comments to our factory This manual may be periodically...

Страница 8: ...fault measurement includes instructions for performing the test and provides instruction for interpreting measurement Data Save and Export Instructs the user on methods for saving FlightHawk AV gener...

Страница 9: ...Hawk AV Basic Operation 5 Aviation Testing Software 5 Measurement Interface 5 FlightHawk AV Default Settings 7 Setting the Measurement Frequencies 8 Changing Measurement Frequency on the Display 8 Cha...

Страница 10: ...ete 16 Freq 16 Step 17 Move Left 17 Move Right 17 Search Max 17 Search Min 17 DeltaMarker 17 MoveDelta 17 Search Peak M1 M2 M4 M5 17 Using Delta Markers 18 Peak Search Between Markers 20 Utility Menus...

Страница 11: ...ult Location Measurement 37 Chapter 6 Data Save and Export 38 Saving and Recalling FlightHawk AV Status Data 38 Trace Data in CSV File Format 38 Trace Data S1p File 38 Save Files on FlightHawk AV 39 S...

Страница 12: ...Types 54 How to Display a Graph 55 How to delete saved graphs 55 Bar Graph Controls 56 Pause Resume 56 Graph Readings 56 Graph Unit 56 Graph Scale 56 Data Graph Controls 57 Graph Unit 57 Graph Scale...

Страница 13: ...69 VSWR 70 Peak Envelope Power 70 Video Filter 71 Burst Average Power 72 Chapter 8 Maintenance 73 Cleaning 73 Charging the Battery 73 Replacing the Battery 74 FlightHawk RF Test Set Calibration 74 Sto...

Страница 14: ...ecifications 85 Average RF Power 85 Match Measurement 86 Peak Envelope RF Power 87 Burst Average RF Power 87 Physical and Environmental Specifications 88 Termination Specifications 88 Limited Warranty...

Страница 15: ...sks 1 Automated VSWR testing 2 Manual Measure Match function to determine if there is a problem with your system s cabling or antenna 3 Manual Distance to Fault measurement to locate the source of the...

Страница 16: ...er FlightHawk AV Wideband Power Sensor Model 5017 5017D AV Cable RF N m to N f 3m 5A12970 16 120B Termination 25 Watt 25 T MN Adapter N m to SMA m 4240 500 23 Adapter N m to SMA f 4240 500 10 Adapter...

Страница 17: ...screen display area TNC Female 4240 407 UHF Male 4240 408 UHF Female 4240 409 SMA Male 4240 410 SMA Female 4240 411 Couplers 5 4240 413 Hard Carrying Case FH AV CC USB Cable 10 ft 5A2653 10 USB Adapte...

Страница 18: ...Bird 5017D AV RF Power Sensor available in the FlightHawk RF Test Set To measure transmitter RF power connect the power sensor to the FlightHawk AV RF Power measurements verify and monitor the condit...

Страница 19: ...t display area menus and control options The user taps the screen to access menus change settings perform measurements and save results See Table 1 on page 6 for explanations Note The displays used in...

Страница 20: ...ess to display the scale menu 7 LIMIT icon press to display the limit menu 8 DTF icon press to display the Distance to Fault menu 9 CAL icon press to display the calibration menu 10 Menu icon press to...

Страница 21: ...Divisions 10 Traces per Channel 1 Active Trace Number 1 Number of Sweep Points 201 Stimulus Start Frequency 1 MHz Stimulus Stop Frequency 6 GHz Stimulus IF Bandwidth 1 kHz Sweep Range Setting Start St...

Страница 22: ...minimum or maximum frequency of the model There are two methods available to change the start stop center frequencies and frequency span display screen entry and FREQ menu entry Changing Measurement F...

Страница 23: ...es the detail in Measure Match mode measurements When saving a trace the number of data points collected are saved A progress bar just below the x axis will indicate the progress of the sweep When the...

Страница 24: ...ttings Note The system default unit m optional unit ft Start Distance 1 Select the input box 2 Set start distance Stop Distance 1 Select the input box 2 Set stop distance Windowing Windowing is an opt...

Страница 25: ...lue it must be entered in dB ft or dB meter The manufacturer generally gives these values as dB 100ft or dB 100meters Cable List The Cable List contains known cable values for a variety of cable types...

Страница 26: ...to indicate the active Trace 2 Trace Count Setting a Press the Trace icon on the menu bar b Choose the number of traces to display x1 x2 or x4 Note Every trace has a name Tr1 Tr2 Tr3 or Tr4 the name...

Страница 27: ...icon See Figure 7 on page 13 2 Select one of the following from the menu a For Manual Operation Press Top to change upper limit of the display Press Bottom to change the lower limit of the display b...

Страница 28: ...d using a failure flag and alarm Note Limit lines are available in any measurement mode Setting Limit Lines 1 Press LIMIT icon Figure 8 Limit Menu 2 Select from the following limit options Limit On Of...

Страница 29: ...n Press to move limit line down the vertical scale Each press will move the limit line the value in the Step field FailFlag On Off Press to toggle fail flag on and off The words PASS or FAIL will be d...

Страница 30: ...n also be displayed Markers indicate SWR to 0 01 and Return Loss or Cable Loss to 0 1 dB Setting Markers 1 Press the MKR icon Figure 10 Marker Menu 2 Select from the following marker options Add Press...

Страница 31: ...er to the right Each press will move the active marker the value in the Step field Search Max Press to move the active marker to the maximum value position on the trace Search Min Press to move the ac...

Страница 32: ...wo markers must be displayed for the Delta Option to work 1 Select the marker on the screen to be the active marker Note In Figure 12 marker 3 is the active marker marker 1 and 2 are turned on Figure...

Страница 33: ...FlightHawk AV Basic Operation 19 3 Press MKR icon and select MoveDelta Note Figure 14 shows Marker 1 3 is now highlighted Figure 14 Highlighted Delta Marker...

Страница 34: ...displayed for the peak search between markers to work Marker 3 will always find the peak between marker 1 and 2 regardless of how many other markers are displayed and marker 6 will always find the pea...

Страница 35: ...Menu icon will display the utility menus MEM FREQ RESET FILE PNG SYS See Figure 16 These menus are described in this section with the exception of the FREQ menu the FREQ menu is described in Setting t...

Страница 36: ...ots Screenshots can be saved by using the Save Screen Picture options on the File menu or by pressing the PNG Icon The current time is added to all screen shots The site name may be added as an option...

Страница 37: ...n Edit SiteName dialog box will be displayed each time screen shot is taken Color Screen Shot Press to toggle screen shots in color or black and white When set to OFF screen shots will be black and wh...

Страница 38: ...be included on all screen shots After Site Name is set to ON an Edit SiteName dialog box will be displayed each time a screen shot is taken See Figure 20 The site name must be entered the first time...

Страница 39: ...ault settings All current data is cleared including calibration and all menus are reset to default Saved data is not affected by a reset 1 Press the Menu icon 2 Press RESET A Reset dialog will open cl...

Страница 40: ...e FlightHawk AV in the vertical position User options include Change Trace color Change limit Line color Change font size Change line widths Toggle Full Screen on and off Toggle display of GPS coordin...

Страница 41: ...EXIT Press the exit icon on the SYS menu to close the FlightHawk AV application About Screen Press the information icon on the SYS menu opens the About Screen The About screen displays the software v...

Страница 42: ...alibrating the unit 1 Press the Calibrate icon See Figure 27 2 Connect the Cal Combo Open connector to the unit antenna port 3 Press the Open softkey 4 Wait for the unit to sweep and a Green Check to...

Страница 43: ...trace measurement field to display menu 2 Select one of the following from the Measurement Mode menu ReturnLoss SWR Note When making a match measurement select units for the Y vertical scale SWR for s...

Страница 44: ...10 Seconds for the sweep to update Interpreting the Measurement The graph below shows a typical Match Measurement of an antenna Figure 29 Interpreting Match Measurement The graph contains the followi...

Страница 45: ...t the start frequency at 400 and the stop frequency at 500 MHz For an 800 MHz antenna set the start frequency at 700 and the stop frequency at 1 100 MHz 4 Connect a phase stable cable to the FlightHaw...

Страница 46: ...that the scale is greatly reduced to show the cable s variation across frequency Figure 31 Interpreting Cable Loss Measurement 1 Marker 1 and Marker 2 indicate the minimum and maximum loss for the cab...

Страница 47: ...e cable Vp and the number of measured data points determine the maximum distance tested during fault location test Max Distance The maximum measurable distance can be calculated by FlightHawk AV based...

Страница 48: ...of Propagation The velocity of propagation Vp is a characteristic of the cable and is expressed as a percentage Consult the cable manufacturer s specifications to get the velocity of propagation valu...

Страница 49: ...ncies 5 Press Start distance field and enter the start value 6 Press the Stop distance field and enter the stop value 7 Press DTF Menu 8 Press Window selection to change the display to the desired val...

Страница 50: ...o bleed off any static charge prior to connecting the FlightHawk AV to the system 12 Connect the FlightHawk AV Analyzer to the cable being tested Note If the FlightHawk AV Analyzer is calibrated with...

Страница 51: ...sually due to the antenna Typically the trace after the antenna can be ignored Note If a maximum distance less than the total length of the cable system is selected the trace will not show the end of...

Страница 52: ...V file Trace data is saved in the following format to the CSV file F n Frequency about point N Data1 Trace response value Real part Data2 0 Imaginary part Trace Data S1p File FlightHawk AV can save th...

Страница 53: ...ance F n Frequency about point N RI MA DB RI MA DB Save Files on FlightHawk AV The FlightHawk AV Analyzer automatically names files using a time date format this can be changed during the save operati...

Страница 54: ...an be saved as png or jpeg 4 Press appropriate Save icon each save type has its own save button Note Unless a custom name is entered a default filename will be automatically generated This file will b...

Страница 55: ...n to display the file menu See Figure 35 3 Press the Save Type to select file type STATUS CAL cst or STATUS sta 4 Press Load 5 Select the data file from the list 6 Press Load See Figure 37 on page 42...

Страница 56: ...p 1 Press the Menu icon 2 Press the FILE icon to display the file menu See Figure 35 3 Press Delete User File 4 Select Directory containing files to delete Note The default directory folder displayed...

Страница 57: ...to each file type to select those files for deletion 6 Press DELETE Data Transfer Function Data transfer from the FlightHawk AV may be accomplished using a USB Drive or via Bluetooth transfer For inst...

Страница 58: ...the file Figure 40 File Selection 7 Press to select the file to be copied See Figure 41 8 Press the Copy icon Figure 41 Select and Copy Files 9 Select LOCAL See Figure 42 10 Select USB Storage 11 Nav...

Страница 59: ...otification area at the top of the display screen See Figure 43 Figure 43 Eject USB Storage 15 Tap EJECT Ejecting USB Drive from Settings Menu 1 Tap Settings on the Home Screen See Figure 44 2 Tap Sto...

Страница 60: ...con on the unit s home screen 6 Select Phone Storage FlightHawk AV storage Local in the File Manager program 7 Navigate to the location of the file Figure 45 File Selection 8 Select the file to be cop...

Страница 61: ...enu Accessing Communication Services 1 Swipe your finger down from the top of the display screen to access the notification area 2 Tap the service Icon to start or stop the service a Location tapping...

Страница 62: ...Bird RF Meter App will automatically launch 4 Check the box to select Bird RF Meter as the default app This setting allows the Bird RF Meter App to automatically connect to this sensor in the future...

Страница 63: ...ansmit and or receive antenna Refer to your official maintenance manual or diagnostic procedure for exact test instructions For a description of displays and menus see Sensor Displays and Menus on pag...

Страница 64: ...with no applied RF power can drift making all readings inaccurate by this value For example if the zero value is 0 02W measuring a 50 W signal will give a reading of 49 98 W a 0 04 error Measuring a...

Страница 65: ...ecting a graph from the list See Graph Displays for additional information Item 1 Display Controls Menu Used to configure the sensor and choose the format for displaying measurement data See Display C...

Страница 66: ...ing Unit of measure Analog Bar Meter Scale Changing the Unit of Measure 1 Tap the sensor reading to display the popup dialog 2 Tap Edit Unit 3 Tap the measurement unit and select the new unit of measu...

Страница 67: ...to either 4 5 kHz 400 kHz or full bandwidth see Video Filter CCDF Limit Enter the threshold to be used for CCDF measurement See CCDF Graph Displays Any measurement can be displayed in graphical or ta...

Страница 68: ...surement value The graph is limited to 2000 data collection points once the graph reaches this limit the oldest data is discarded as new data is added so the chart data will constantly be shifting to...

Страница 69: ...aph from the drop down menu 5 Tap OK 6 The new graph will be displayed in the Display Controls Menu below Reading Table 7 Tap the graph s name in the menu to display the graph Note Graphs are saved fo...

Страница 70: ...ents you wish to display together on the graph Graph Unit The graph unit of measure may be changed manually by selecting a unit from the menu Note Changing the graph unit will automatically change the...

Страница 71: ...on the Y axis may be changed by manually entering the minimum and maximum scale values 1 Tap the Sensor Operation Menu 2 Tap Graph Scale to display the dialog 3 Tap drop down list Select Custom 4 Tap...

Страница 72: ...e right or below the chart The marker list is removed from the screen by tapping Marker List a second time Figure 53 Marker List Deleting Markers Press the marker data in the marker list until Delete...

Страница 73: ...opped and the trace is paused When resume is tapped data collection begins and trace begins moving Graph Readings The graph initially opens with only one measurement displayed additional measurements...

Страница 74: ...he center point of the graph All markers are added at the center point of the graph newly added markers will be positioned directly over previous markers if the previous marker has not moved from the...

Страница 75: ...Logging Interval and Logging Condition The menu option will change to Stop Logging once logging is activated 2 Once logging begins an Icon is displayed in the notification area on the android device...

Страница 76: ...by sensor being used A Performing Zero Calibration message will be displayed during the calibration A message will be displayed indicating a successful calibration or calibration failed If the calibr...

Страница 77: ...values recording in the log file are defined by the readings definition in section 1 Each array of values is prefaced by the word results Each log file will contain multiple data arrays even hundreds...

Страница 78: ...will open 5 Select All Files in the drop down menu at the bottom of the dialog box Log files have the file extension log 6 Navigate to the folder containing the log file to import 7 Select the file a...

Страница 79: ...the same network Add Connection The menu is used to manually connect to a Bird Device on the WiFi network the android device is connected to Session List This is a list of all session files saved from...

Страница 80: ...Preset is similar to a Default Preset the difference is the Preset must be manually loaded to be used 3 Serial Number Specific Session File When a power sensor is connected to the Bird RF Meter the f...

Страница 81: ...nsor d Setup logging criteria 3 Tap the menu overflow icon 4 Tap Session List 5 Press the session file for the device setup up above until the save menu is displayed 6 Tap Save As 7 Select Default Pre...

Страница 82: ...internal memory of the Android device and can them be transfer to a PC or another Android device Typical Path SDCARD Bird RF Meter Sessions Import Session File If you wish to import one or more Sessio...

Страница 83: ...lation scheme The WPS is a broadband sensor that measures power across its entire frequency range Its diodes operate in their square law region so that the detector output is directly proportional to...

Страница 84: ...Envelope Power Peak power measurements detect amplitude changes as a signal modulates the carrier envelope The WPS operates in an asynchronous cycle 300 ms of waveform sampling followed by a 50 ms res...

Страница 85: ...le still being larger than the demodulated signal bandwidth video bandwidth Narrowing the filter limits the noise contribution caused by interfering signals Listed below are some common modulation sch...

Страница 86: ...han the average power After peak power is measured a threshold of the peak is set The sampled power crosses that threshold at the beginning and end of each burst The time between crossings is used to...

Страница 87: ...rnal battery pack will automatically recharge when the FlightHawk AV Analyzer is connected to the AC adapter Recharging time from a full discharge is approximately 5 hours with the unit powered off CA...

Страница 88: ...V Figure 64 Battery Removal 3 Connect new battery cable to connector in the battery compartment 4 Install battery access cover and two screws to secure cover 5 Charge the battery FlightHawk RF Test Se...

Страница 89: ...cessary to edit the Cable List and select Cable Lists The Cable List that is preloaded on the FlightHawk AV is named CableList ini Edit Cable List on FlightHawk AV Add Cable to Cable List Note cables...

Страница 90: ...ption to display the Cable List See Figure 65 3 Scroll to the bottom of the Cable List to see the cable to be deleted 4 Select the cable to be deleted 5 Press Delete button to delete cable Save Cable...

Страница 91: ...from the Cable List currently displayed 1 Press DTF icon 2 Press CableList option to display the Cable List See Figure 65 3 Press the Recall button See Figure 68 Figure 68 Recall Cable List Dialog Bo...

Страница 92: ...age 43 Figure 69 Copying Cable List 3 Save the CableList ini file on the PC in the same folder with the Cable List Editor 4 Double Click the CableListEditor exe to launch the editor 5 Click Import and...

Страница 93: ...t Note The Cable List name can be the same as the default or may have a unique name 11 Name the Cable List and click Save 12 Copy the updated Cable List to a USB drive 13 Exit the SiteHawk App on the...

Страница 94: ...file to the USB drive 6 Remove the USB drive 7 Connect the USB drive to the USB adapter See Figure 72 on page 80 8 Connect the USB adapter to the FlightHawk AV Analyzer Figure 72 USB Drive connections...

Страница 95: ...ned for any reason request an Return Material Authorization RMA through the Bird Technologies website All instruments returned must be shipped prepaid and to the attention of the RMA number Bird Servi...

Страница 96: ...ations Frequency Range 1 MHz to 6 GHz Frequency Accuracy 2 5 ppm Frequency Resolution Setting 1 kHz Output Power 10 dBm Reflected Amplitude Accuracy1 15 dB to 0 dB 25 dB to 15 dB 35 dB to 25 dB 0 4 dB...

Страница 97: ...x non condensing Pressure 84 to 106 7 kPa Warm Up Time 15 minutes Power Measurement Yes with RF Meter App Compatible Devices Visit www birdrf com for a list of sensors compatible with the Bird RF Mete...

Страница 98: ...ge Power 1 W Connectors Load Return Loss VSWR 35 dB 1 032 Open Phase Deviation 0 6 Short Phase Deviation 0 6 Operating Temperature 49 to 95 F 15 to 35 C Storage Temperature 40 to 167 F 40 to 75 C Freq...

Страница 99: ...ivity Min 100 1300 MHz 30 dB RF Connectors N Female Interface DPM PC Serial Port PC USB Port Male DB 9 RS 232 9600 Baud no parity 8 data bits 1 stop bit Female DB 9 EIA 232 9600 Baud no parity 8 data...

Страница 100: ...ment Figure 74 Match Measure Uncertainty Measurement Range Return Loss Rho VSWR 0 to 23 dB 0 07 to 1 0 1 15 to 99 9 Forward Power Min 0 05 W Measurement Uncert See Figure 74 on page 86 6 4 2 0 2 4 25...

Страница 101: ...reading 1 4 W 2 20 of reading 1 4 W 2 2 Above 35 C or below 15 C add 3 For D 0 1 add 0 1 W For period 0 1s add 1 5 0 15 W Minimum Pulse Width 400 ns Power Range 13 500 W average Burst Width 1 s 5 ms R...

Страница 102: ...121 x 117 x 33 mm Weight Max 1 2 lb 0 55 kg EMC EMC Directive 2004 108 EC European Standard EN 61326 Electrical Equipment for measurement control and laboratory use EMC Requirements Test Spec for rad...

Страница 103: ...Specifications 89...

Страница 104: ...ch claim for breach of these warranties shall be deemed to be waived by Buyer unless made in writing within ten 10 days from the date of discovery of the defect The above warranties shall not extend t...

Страница 105: ...F operation You can also use the FDR to test the antenna elements from the equipment rack for troubleshooting or directly at the antenna to make sure that reliable operation prior to installation 2 Th...

Страница 106: ...other disconnections unless the health check fails The check will give a simple Go No Go indication of the health of the entire cable and antenna system In the case of a No Go indication any faults m...

Страница 107: ...ddressed to the preliminary procedures so as to avoid erroneous test results WARNING Observe aircraft and equipment servicing procedures as well as safety precautions detailed in the AMM Aircraft Main...

Страница 108: ...saved in the status files Data in sta or cst data files can be recalled and displayed with the current data trace NOTE cst files will save the settings and calibration if the unit was calibrated when...

Страница 109: ...use 1 Set start and stop frequencies for the applicable RF system under test using the TABLE 1 RF SYSTEM FREQUENCY RANGE CHART below NOTE Chart is for typical frequencies and reference only System op...

Страница 110: ...sion and then calibrate to the end of this extension If the cable or adapters are removed you must calibrate again NOTE Changing frequency settings will automatically turn calibration off Always set t...

Страница 111: ...o set off those parts of a trace that are outside of the acceptance values It shows as a red horizontal line at the limit line value The part of the trace that is not acceptable will display white Add...

Страница 112: ...6 156 MHz 2 0 9 54 dB VOR 108 118 MHz 108 118 MHz 6 0 2 33 dB ILS Localizer 108 112 MHz 108 112 MHz 5 5 3 19 dB ILS Glideslope 327 337 MHz 327 337 MHz 2 5 7 36 dB Rad Alt LRRA 4200 4400 MHz 4275 4325...

Страница 113: ...ax rack connector where the black box was installed 3 Wait 10 Seconds for the sweep to complete the update d Interpreting the Measurement 1 The graph contains the elements below a The Vertical grid sc...

Страница 114: ...menu NOTE When making Distance to Fault measurement select DTF_RL units for the Y vertical scale c Set number of Data Points 1 Push the Points data field and enter the number of Data Points desired d...

Страница 115: ...or select the cable type from the cable list 1 Push velocity and enter the cable velocity Table 2 a Select Velocity b Set Speed Value Vp from Table 2 c Select Cable Loss d Set Cable Loss Value must b...

Страница 116: ...Calibrate the FlightHawk AV See Calibration above j Connect the FlightHawk AV Analyzer to the cable and antenna system being tested k Wait for a minimum of 10 seconds for the sweep to complete the up...

Страница 117: ...na via WDM 3 Make sure that the fault location by replacing defective component with 50 ohm load calibration combo or dummy load a Disconnect the component cable connector antenna b Connect the 50 ohm...

Страница 118: ...r an antenna system Figure 1 Typical Fault Location Measurement The table below Table 3 shows typical component return loss Table 3 Typical Component Return Loss Typical Component Return Loss Antenna...

Страница 119: ...nect the TDR adapter cable from the EE Rack Bench Plug 2 Remove the 50 ohm terminator from the other end of the applicable cable if used for troubleshooting 3 To install the applicable black box do th...

Страница 120: ...A 16...

Страница 121: ...s of predefined tests tailored to the specific systems available on a given aircraft These tests are designed to be used in conjunction with troubleshooting procedures in the aircraft s technical manu...

Страница 122: ...s in aircraft communications systems and manufacturers the screens shown in this manual will vary from those displayed on the FlightHawk AV This manual is not meant to provide specific guidance for an...

Страница 123: ...ed with an aircraft selection screen See Figure 4 Note These tests are designed to be used in conjunction with trouble shooting procedures in the aircraft s technical manual The technician will choose...

Страница 124: ...cations or navigation systems Each system on the aircraft will be listed the technician chooses the appropriate system by tapping the screen See Figure 5 Note If the aircraft contains more systems tha...

Страница 125: ...Once the FlightHawk AV is connected to the system s cabling tap the test button See VSWR Test Screen on page B 5 The FlightHawk AV automatically configures the parameters required to test the VSWR of...

Страница 126: ...appear in the display and the technician will be able to see the exact values returned during the test See Figure 8 on page B 7 New Test tapping the New Test button will open a new test selection scre...

Страница 127: ...test fails the technician can view the trace and see exactly how far the VSWR is above the test s threshold To return to the previous Test Results Screen tap back button Figure 8 Detailed Test Results...

Страница 128: ...ng a new aircraft for testing or selecting a different communications system on the same aircraft Figure 9 New Test Selection Screen The technician is given two options New Aircraft tapping the New Ai...

Страница 129: ...Perform the following steps to use advanced mode Note Prior to using the FlightHawk AV in this mode a calibration should be performed 1 Prior to making any measurements in the advanced mode perform a...

Страница 130: ......

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