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Chapter 3

Testing

WiFi Troubleshooting using a single ended application

WiFi Advisor Wireless LAN Analyzer User’s Guide

September 2015

22073751, Rev. 003

Page 31

Spectral results

The Spectral results, shown in

, provide a real-time spectral analyzer configurable by 802.11 band, channel, and channel

width. It is helpful for finding signals that interfere with 802.11 networks by showing both 802.11 and non-802.11 RF signals within
a given channel of interest.

Figure 16

Spectral results

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Summary of Contents for WiFi Advisor WFED-300AC

Page 1: ...WiFi Advisor WFED 300AC Wireless LAN Analyzer User s Guide ...

Page 2: ...d trademarks are the property of their respective owners Copyright release Reproduction and distribution of this guide is authorized for US Government purposes only Ordering information This guide is a product of Viavi s Technical Information Development Department issued as part of the WiFi Advisor The catalog number for a published guide is ML WFED 300AC Terms and conditions Specifications terms...

Page 3: ...n expense This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment This equipment has been SAR evaluated for use in hand SAR measurements are based on a 10 mm spacing from the body and that compliance is achieved at that distance Keep the device away from your body to meet the distance requirement This transmitter must not be co located or operating in c...

Page 4: ...chieved at that distance Keep the device away from your body to meet the distance requirement iii This device complies with Industry Canada license exempt RSS standard s Operation is subject to the following two condi tions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device i l appareil pou...

Page 5: ...and the batteries used to power the product should not be disposed of as unsorted municipal waste and should be collected separately and disposed of according to your national regulations In the European Union all equipment and batteries purchased from Viavi after 2005 08 13 can be returned for disposal at the end of its useful life Viavi will ensure that all waste equipment and batteries returned...

Page 6: ...ide ix Purpose and scope x Assumptions x Safety and compliance information x Conventions x Chapter 1 WiFi Advisor Overview 1 About the Wireless LAN Analyzer 2 Architecture 2 About the WiFi Advisor 3 Features and capabilities 3 Quick tour 4 Top view 4 Front view 6 Back view 8 About the WiFi Advisor application 9 ...

Page 7: ...16 Chapter 3 Testing 18 Smart Channel Wizard 19 WiFi Troubleshooting using a single ended application 23 BSSID results 25 Channel view 28 Spectral results 31 Navigating the Spectral result screen 32 Troubleshooting Spectral measurements 34 Assessing WiFi performance throughout a site 35 Getting started 37 Specifying settings 37 Step 1 Selecting devices 38 Step 2 Specifying the Broadband Service Ra...

Page 8: ...ving to a new job in the Site Assessment test 50 Activating or deactivating jobs 50 Viewing job results 51 Exporting jobs 54 Deleting jobs 55 Troubleshooting 55 Appendix A Maintenance and Specifications 57 Charging the battery 58 Replacing the battery pack 59 Cleaning the instrument 60 Getting Technical Assistance 60 Specifications 60 Glossary 62 Index 64 ...

Page 9: ...tember 2015 22073751 Rev 003 Page ix About This Guide This prefix explains how to use this manual Topics discussed include the following Purpose and scope on page x Assumptions on page x Safety and compliance information on page x Conventions on page x ...

Page 10: ...his guide is intended for novice intermediate and experienced users who want to use the WiFi Advisor effectively and efficiently We are assuming that you have basic computer and iPad experience and are familiar with basic telecommunication and WiFi concepts and terminology Safety and compliance information Safety and compliance information for the instrument are provided in printed form and ship w...

Page 11: ...ypeface Refer to Newton s Telecom Dictionary Table 2 Symbol conventions This symbol indicates a note that includes important supplemental information or tips related to the main text This symbol represents a general hazard It may be associated with either a DANGER WARNING CAUTION or ALERT message See Table 3 for more information This symbol represents an alert It indicates that there is an action ...

Page 12: ...ARNING Indicates a potentially hazardous situation that if not avoided could result in death or serious injury It may be associated with either a general hazard high voltage or other symbol See Table 2 for more information CAUTION Indicates a potentially hazardous situation that if not avoided could result in minor or moderate injury and or damage to equipment It may be associated with either a ge...

Page 13: ...r 1 WiFi Advisor Overview This chapter provides a general description of theWFED 300AC WiFi Advisor Topics discussed in this chapter include the following About the Wireless LAN Analyzer on page 2 Architecture on page 2 About the WiFi Advisor on page 3 About the WiFi Advisor application on page 9 ...

Page 14: ...rchitecture The system architecture of the Wireless LAN Analyzer solution includes the following 1 The WiFi Advisor test device Each WiFi Advisor contains an 802 11 radio spectrum analyzer and a network processor The device is responsible for performing tests requested by the iOS WiFi Advisor iOS Application 2 The WiFi Advisor iOS Application This software runs on an Apple iPad iPad 2 or newer wit...

Page 15: ...izes and troubleshoots 802 11 WiFi networks provides a whole home view of real WiFi performance margin and generates valuable information that can be given to the end user Features and capabilities Flexible Battery powered WFED configurable as Station or AP Configurable radio from 802 11b g to 802 11ac 3x3 WiFi and Ethernet test interfaces WiFi Advisor hardware 802 11a b g n ac 3x3 Broadcom 43460 ...

Page 16: ...ble as either Test Station or Test AP Powerful network processor WiFi and Ethernet test interfaces Battery powered Quick tour This section describes the buttons indicators and connectors for the WiFi Advisor WFED 300AC Top view The top view is shown in Figure 2 Figure 2 WiFi Advisor top view Power LED Status LED Bluetooth LED Power Button Bluetooth Button ...

Page 17: ...own Solid amber indicates the instrument cannot talk to the battery so it doesn t know the charge level Bluetooth The Bluetooth button is the blue button on the top of the instrument Press and hold the button for five seconds to make the WiFi Advisor ready to pair The LED located below the button indicates the Bluetooth status Off indicates that there is no Bluetooth connection or no connection be...

Page 18: ... the status of the test Blinking amber indicates a test is in progress at that location Solid green indicates the test is complete at that location and the test passed Solid red indicates the test is complete at that location and the test failed Front view The front view is shown in Figure 3 Figure 3 WiFi Advisor front view USB 2 0 device 10 100 1000 Ethernet USB 2 0 host ...

Page 19: ...wo USB connectors They are used to connect host devices to the WiFi Advisor and as an alternative path for firmware download The standard USB connector is a master host interface The mini USB is a device slave interface Ethernet An RJ 45 connector used to connect to a 10 100 1000 electrical Ethernet network The two LEDs indicate connection and link activity ...

Page 20: ...iew is shown in Figure 4 DC Power input The DC Power input located on the back of the instrument is used to connect the AC adapter Battery charge LED The LED located next to the power input indicates that the adapter is connected Red indicates the battery is charging green indi cates fully charged Figure 4 WiFi Advisor back view Battery charge LED DC Power input ...

Page 21: ... the WiFi Advisor instrument to run tests and manage devices The application allows the user to set up WiFi tests communicates test setups to the WFED 300AC WiFi Advisor test device s over Bluetooth manages test execution displays test results and enables administration of job or work ticket related information The icon for the WiFi Advisor is shown in Figure 5 To launch the application tap the ic...

Page 22: ...6 The application provides the following functions WiFi Advisor Home The main application that includes four selections SmartChannel Wizard A guided optimization of your WiFi Network Two Ended Site Assessment Evaluate WiFi performance at critical locations within a site installation see Assessing WiFi performance throughout a site in Chapter 3 Testing Figure 6 WiFi Advisor application Home screen ...

Page 23: ...ster devices view device status and manage firmware updates see Chapter 2 Managing Devices To launch an application either touch the icon or touch the title for example touch the magnifying glass or touch Single Ended Troubleshooting Job Manager For viewing and uploading of completed job files and customer PDF reports See Managing jobs on page 49 Quick Cards The WiFi Advisor Quick Start Guide and ...

Page 24: ...device status and manage firm ware updates Topics discussed in this chapter include the following Connecting a WiFi Advisor for the first time on page 13 Registering and unregistering devices on page 14 Changing the power off delay on page 15 Updating the WiFi Advisor firmware on page 15 Updating the iPad application software on page 16 NOTE The WiFi Advisor iOS application must be installed on yo...

Page 25: ...ts and lists any devices within range 3 Press and hold the blue button on the top of the WiFi Advisor for 5 seconds 4 Verify that the blue LED on the WiFi Advisor is flashing slowly 5 On the iPad in the list of My Devices select the WiFi Advisor with the serial number of your WiFi Advisor 6 Label your WiFi Advisor with the letter designator of your choice from the sheet of ID Labels provided This ...

Page 26: ...on select Device Management 2 In the Unregistered Devices area select the WiFi Advisor with the serial number of your device 3 Enter the label letter for the WiFi Advisor 4 Repeat step 2 and step 3 for each WiFi Advisor The registered devices appear in the Device Manager screen To unregister WiFi Advisor devices with the iPad 1 From the WiFi Advisor application select Device Management 2 Select th...

Page 27: ...2 Touch the Power Off Delay associated with that WiFi Advisor 3 Select the power off delay Disable means it will not automatically power down regardless of expired time If you would like to dismiss the window without changing the current setting touch outside of the window Updating the WiFi Advisor firmware The firmware on the WiFi Advisor can be upgraded over Bluetooth using the iPad The WiFi Adv...

Page 28: ...ollowing a If your company has an enterprise network connect to your company enterprise network with the iPad If there is a new version your application icon will include a badge a circle in the upper corner that indicates updates are avail able Using the browser go to the site location where the application is kept then download the new version b Go to the Apple App Store NOTE If you experience t...

Page 29: ...Analyzer User s Guide September 2015 22073751 Rev 003 Page 17 2 As the process runs the application icon has a circle inside that rotates 3 When the update is finished the rotating circle disappears and the icon has a badge a blue dot in the upper left The host application software is updated ...

Page 30: ... provides task based instructions for using the WiFi Advisor features Topics discussed in this chapter are as follows Smart Channel Wizard on page 19 WiFi Troubleshooting using a single ended application on page 23 Assessing WiFi performance throughout a site on page 35 Managing jobs on page 49 Troubleshooting on page 55 ...

Page 31: ...ides a guided path to optimizing the WiFi environment It assumes that the customer has installed and turned on their AP and that they wish to optimize its network settings To run the wizard 1 From the WiFi Advisor application select SmartChannel Wizard 2 Choose a device 3 Choose the BSSID that you are interested in analyzing The test starts The Summary screen Figure 7 appears ...

Page 32: ...ise SNR and so on WiFi interference details the middle area with Co channel and Adjacent channel information Optimization tips The Recommendations area at the bottom If warnings are presented a corresponding set of recom mendations are provided to help improve the condition The More drop down in the left pane provides more detail regarding the Device s a Trend Graph and a Spectral Graph Figure 7 E...

Page 33: ...Figure 8 provides information such as Which stations are connected to my RG Which stations that have the highest channel utilization Do my stations have weak signal Which stations are using old legacy PHY rates standards Which stations are Top Talkers the list is sorted by utilization Figure 8 Example of SmartChannel Wizard Device List results ...

Page 34: ...2 22073751 Rev 003 September 2015 The Trend Graphs provide visibility into the key WiFi parameters as you move through a site The utilization graph shows both the Channel Utilization blue line and the actual utilization due to noise red line Figure 9 Example of SmartChannel Wizard Trend Graphs ...

Page 35: ...find the source of interference WiFi Troubleshooting using a single ended application The single ended troubleshooting test includes the following Quick visually intuitive assessment of critical WiFi network factors reduces troubleshooting time Spectral insight within the same tool allows identification and isolation of common non 802 11 interference Figure 10 Example of SmartChannel Wizard Spectr...

Page 36: ...g properly To troubleshoot a single connection 1 Bring the iPad and WiFi Advisor to the location experiencing problems 2 Open the application on the iPad 3 Select Single Ended Troubleshooting 4 Choose which WiFi Advisor device to use for the test If you have previously used a WiFi Advisor device with this iPad it appears in the list of devices If it does not appear you may need to register the dev...

Page 37: ...bility into the wireless networks active in the current environment The BSSID results report the RSSI per channel Results are available for the 2 4GHz and 5GHz WiFi bands Use the 2 4GHz 5GHz box in the upper left to select the band that you wish to view A sample result is shown in Figure 12 This provides a visual representation of overlap in the channels to help identify problem spots Figure 12 BS...

Page 38: ...all detected BSSIDs along with their channel setting current signal strength and MAC address To change the order of the list tap 123 to sort by channel ABC to sort by name or dBm to sort by signal strength To view more details of a particular BSSID touch the desired BSSID either on the graph or select it from the BSSID list on the right Select one of the channels in the BSSID List in the right pan...

Page 39: ...i Advisor Wireless LAN Analyzer User s Guide September 2015 22073751 Rev 003 Page 27 From the BSSID Details menu touch Trend Graphs Trend graphs show RSSI Noise and Channel Utilization over time for the selected BSSID A sample graph is shown in Figure 13 Figure 13 Trend Graphs ...

Page 40: ...5 Channel view The Channel view shown in Figure 14 shows utilization and noise per 802 11 channel in addition to co channel or adjacent channel interference You can view the best channels per band best channels per channel width or overall channel score This allows you to select the best channels available in the current environment Figure 14 Channel results ...

Page 41: ... detected BSSIDs along with their channel setting current signal strength and MAC address To change the order of the list tap 123 to sort by channel ABC to sort by name or dBm to sort by signal strength Touching a specific BSSID from the BSSID list configures the Utilization bar graph to the channel associated with that particular BSSID and the BSSID List changes to the Channel Details view in the...

Page 42: ...the wrong channels the likely issue is that a high energy 802 11 transmitter is very close to the WiFi Advisor In Figure 15 a high energy 802 11ac transmitter is using channels 149 153 157 and 161 The channel view should show utilization in these channels only Move the WiFi Advisor away from the high energy transmitter and test again Figure 15 Example utilization when close to high energy transmit...

Page 43: ...Rev 003 Page 31 Spectral results The Spectral results shown in Figure 16 provide a real time spectral analyzer configurable by 802 11 band channel and channel width It is helpful for finding signals that interfere with 802 11 networks by showing both 802 11 and non 802 11 RF signals within a given channel of interest Figure 16 Spectral results ...

Page 44: ...nge the order of the list tap 123 to sort by channel ABC to sort by name or dBm to sort by signal strength The BSSID list is not continuously updated while spectral data is being displayed and is therefore labeled as SNAPSHOT as it represents a list of BSSIDs gathered over a finite period of time prior to turning on the Spectral Analyzer Touching a specific BSSID configures the Spectrum Analyzer t...

Page 45: ... seen at each frequency point 5 Clear located under Max Hold it resets the Max Hold trace and restarts the measurement 6 Average allows averaging of the real time trace when on 7 Number of Samples located under Average select the number of samples to be used for averaging of the real time trace 8 ZigBee displays the ZigBee channels to easily compare WiFI Access point spectral activity relative to ...

Page 46: ... 10 and 11 If possible it is a good idea to look at the spectral response while the microwave is running to determine it s impact Bluetooth devices appear as spikes and appear to roll through the spectral view They are fast moving and you may only see them occasionally The systems are designed to be inter operable but Bluetooth will impact throughput Channels can bleed over into adjacent channels ...

Page 47: ...lled or connect one WiFi Advisor to the Access Point 2 Take a second WiFi Advisor along with your iPad to the location where WiFi performance is to be assessed The test thor oughly evaluates WiFi performance between the two locations 3 Move to the next location of interest and repeat the test to the Access Point 4 Continue until all locations of interest have been performance tested 5 If desired t...

Page 48: ...ser s Guide Page 36 22073751 Rev 003 September 2015 The two ended site assessment test includes the following features Innovative TrueMargin performance test which thoroughly and simultaneously evaluates the physical layer the 802 11 transport layer and the packet layer Figure 18 Site Assessment test ...

Page 49: ... Site Assessment Specifying settings During Site Assessment test up to five individual test profiles are configured that are repeated at each location The test profiles run sequentially at each location and always in the same order During Site Assessment multiple test profiles may be configured as part of a test sequence This sequence will be repeated at each location and always executed in the sa...

Page 50: ...be a WiFi Advisor or the customer s AP WiFi Advisor as AP the WiFi Advisor acts as the access point This is typically performed before or during installa tion Through Customer AP the WiFi Advisor is connected to the access point over Ethernet This is typically trouble shooting after installation If Customer Access Point is selected the WiFi Network appears in the Settings pane a Choose the WiFi ne...

Page 51: ...sequence is repeated at each location and always executed in the same order A Site Assessment configuration with multiple profiles will allow any profile to be enabled or disabled for the test session Once defined the profile On Off settings will apply to all locations tested in that session To specify a configuration 1 From the Site Assessment page select Configuration 2 Do one of the following a...

Page 52: ... Customer AP The Edit Configuration page appears Specify the equipment test profiles and other settings as needed i Specify a name for the configuration ii Choose a profile Do one of the following Select an existing profile Proceed to Step 4 Specifying the AP and Station Location on page 44 If you wish to change a profile either touch the small arrow on the right edge or touch Edit To specify a ne...

Page 53: ...Chapter 3 Testing Assessing WiFi performance throughout a site WiFi Advisor Wireless LAN Analyzer User s Guide September 2015 22073751 Rev 003 Page 41 Figure 19 WiFi Advisor as AP profile ...

Page 54: ...om the predefined devices that is operating as the access point When a WiFi Advisor Test Device is being used as the Access Point select Recommend Channels to populate the Channel Settings with the best channels as determined by the WiFi Analyzer s built in Channel Analysis Engine If you do not wish to use the channels recommended by the Channel Analysis Engine select Recommend Channels to set the...

Page 55: ...the device such as standard channel width number of antennas and other configuration items 6 Touch Layer 1 2 Thresholds a Specify the Layer 1 Thresholds for RSSI Noise count of BSSID s on a Channel and count of BSSID s with Overlap ping Channels b Specify the Tx Failures Retransmits PHY rate and Service Threshold for the 802 11 Thresholds c Touch the back arrow to return to the new configuration p...

Page 56: ... the Site Assessment page select Station Location 4 Select the room where the Station is located If the location you desire is not listed select Add Location Assessing an installation site Two ended site assessment uses two WiFi Advisors to test connectivity and assess an installation site The following procedure describes how to assess an installation site To assess an installation site 1 Bring a...

Page 57: ... No Go result appears next to the access point and station 6 Do one of the following If you have another station select Next Station Location If not go to step 8 The other station must be another WiFi Advisor that is registered with the application Select Rerun Location to repeat the test The rerun results overwrite the previous test results Only press Stop Test if you wish to cancel the test and ...

Page 58: ...esults for both the AP to Station direction and Station to AP direction The menu has several result views Summary shows a summary of the throughput and throughput margin tests for the selected profile This view includes the TrueMargin result to help understand the resiliency of the WiFi link under test Details shows the detailed statistics for the selected test profile in tabular form Histograms p...

Page 59: ...Advisor Wireless LAN Analyzer User s Guide September 2015 22073751 Rev 003 Page 47 An example of the Summary Results is shown in Figure 21 To return to the Site Assessment test touch Site Assessment in the upper left Figure 21 Example of Site Assessment Summary Results ...

Page 60: ...e screen 8 When finished testing select Finish The Finish Test window opens 9 Enter the Customer Address This appears in the closeout report 10 To finish the closeout save the results to a current job or a new job See Managing jobs on page 49 The table below shows the recommended minimum distance between WiFi equipment and household appliances to reduce inter ference Table 4 is not an inclusive li...

Page 61: ...cally deleted Creating a new job in Job Manager Within the Job Manager application you can create a new job To create a new job 1 From the main Job Manager screen touch New 2 In the Add Job screen enter the job related information such as Circuit ID Work Ticket and Tech ID Touch Use Current Location if your iPad is equipped with GPS Geo Tag and you wish to capture the current GPS coordinates with ...

Page 62: ...e the current GPS coordinates with your job data The new job will be visible in the main Job Manager screen as the currently active job Activating or deactivating jobs There can be only one active job at any point in time Any stored job can be activated or deactivated If a job already has results associated with it activating the job and saving new results to it will replace the old results with t...

Page 63: ...nel shows a PDF report containing the results and data gathered from the SmartChannel Wizard This report can be emailed by touching Send PDF in top right of the screen Detailed Report shows all results gathered in the Site Assessment Test including the graphs in PDF This report can be emailed by touching Send PDF in top right of the screen Customer Report shows the end user facing PDF report This ...

Page 64: ...Chapter 3 Testing Managing jobs WiFi Advisor Wireless LAN Analyzer User s Guide Page 52 22073751 Rev 003 September 2015 Figure 22 Customer Report example ...

Page 65: ...Chapter 3 Testing Managing jobs WiFi Advisor Wireless LAN Analyzer User s Guide September 2015 22073751 Rev 003 Page 53 Figure 23 Customer Report example ...

Page 66: ...rt 4 Touch the information icon small i within a circle at the bottom left corner of the Job Manager screen 5 The Edit FTP Settings menu appears If your version of software has both FTP and HTTPS export capability touching the HTTPS button will exchange the Edit FTP Settings dialogue with the Edit HTTPS Settings dialogue 6 Enter the URL user name and password and other information required to poin...

Page 67: ...he box next to the job 3 Touch Delete Troubleshooting If you require technical assistance call 1 844 GO VIAVI For the latest TAC information go to http www viavisolutions com en services and support support technical assistance Table 5 and Table 6 provide some typical issues and resolutions Table 5 Typical WiFi related problems Problem Action Signal strength and coverage problems Attenuation with ...

Page 68: ...1 traffic on the channel High utilization high noise potential non 802 11 interferer Look for 35 utilization low noise 802 11 a b g devices on your network Slow a b g PHY rates occupy the channel longer than modern PHY rates for the same amount of information transfer Old security types WEP WEPA1 limit connection to lower 802 11 rates Detect and advise replacement of old gear Table 6 Trouble with ...

Page 69: ...aintenance and Specifications This chapter describes how to maintain your unit Topics discussed in this chapter include the following Charging the battery on page 58 Replacing the battery pack on page 59 Cleaning the instrument on page 60 Getting Technical Assistance on page 60 Specifications on page 60 ...

Page 70: ...e same whether the power is on or off The Battery LED is amber when the unit is fast charging The WiFi Advisor will trickle charge at other times when the charger is connected and the Battery LED is green After the Battery LED turns green fast charge is complete allow the unit to trickle charge overnight for maximum perfor mance Charging the battery pack is complete NOTE You can test a circuit and...

Page 71: ...8524 To replace the battery pack 1 Turn the power off 2 Pull the two tabs to release the door 3 Unplug the battery pack wiring 4 Remove the old battery pack 5 Insert the new battery pack with the label facing up and aligning the wiring toward the connector 6 Connect the new battery pack to the wiring 7 Replace the battery compartment door Replacing the battery pack is complete CAUTION INSTRUMENT D...

Page 72: ...chnical assistance call 1 844 GO VIAVI For the latest TAC information go to http www viavisolutions com en services and support support technical assistance Specifications This section provides specifications for the WiFi Advisor NOTE When cleaning the instrument Viavi recommends a damp cloth and water only Cleaning with chemicals could cause damage to the plastic case buttons or removal of markin...

Page 73: ...cification Operating Temperature 32 to 104 F 0 to 40 C Storage Temperature 22 to 140 C 30 to 60 C Humidity 10 90 RH non condensing Vibration 3 Axis Vibration Shock 3 half sinusoidal shock 3 Axis Shock Este produto não é apropriado para uso em ambientes domésticos pois poderá causar interferência eletromagnéticas que o obrigam o usuário a tomar medidas necessárias para minimizar estas interferência...

Page 74: ...operate as a wired to wireless adapter Co channel interference multiple APs sharing the same channel sometimes called co channel occupancy The larger the number of APs sharing a channel the more likely you are to expe rience throughput restrictions CPE Customer Premise Equipment D DSSS Digital Sequence Spread Spectrum A type of Modula tion M MIMO Multiple Input Multiple Output antenna simultaneous...

Page 75: ...signal ampli tude strength as it varies by signal frequency The frequency appears on the horizontal axis and the amplitude is displayed on the vertical axis A spectrum analyzer can be used to determine whether or not a wireless transmitter is working according to federally defined stan dards for purity of emissions Output signals at frequencies other than the intended communications frequency appe...

Page 76: ...9 Buttons 4 C Cleaning the instrument 60 Compliance information x Configuration site assessment 39 Connectors 4 F Features 3 Firmware updating 15 H Host software update 16 17 I Indicators 4 Interpreting messages 60 M Maintenance battery replacement 59 charging the battery 58 cleaning the instrument 60 updating firmware 15 Messages interpreting 60 Mobile application 9 O Overview 3 ...

Page 77: ...ices on the iPad 14 Replacing the batteries 59 Replacing the battery 59 S Safety information x Single ended test 23 Site assessment configuring 39 description 35 test 44 Specifications 60 Spectral measurements 34 Spectrum analyzer 32 T Testing single ended 23 site assessment 44 two ended 35 U Updating host software 16 17 unit firmware 15 W WiFi Advisor iPad application 9 Z ZigBee 26 63 ...

Page 78: ...ember 2015 English Viavi Solutions North America 1 844 GO VIAVI 1 844 468 4284 Latin America 52 55 5543 6644 EMEA 49 7121 862273 APAC 1 512 201 6534 All Other Regions viavisolutions com contacts email TAC viavisolutions com ...

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