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Detecting Interferers

35

Figure 17. Interferer Event Details Screen

First Seen:

 The amount of time that has passed since the 

interferer was initially detected. 

Last Seen:

 The amount of time that has passed since the 

interferer was most recently detected. 

Event Count:

 The number of separate instances of AirCheck 

G2 detecting transmission from the interferer. 

Locate: 

Touch this button to open the 

Locate Interferer

 

screen and begin locating the selected interferer. 

See 

“Locating an Access Point, Client, or Interferer,” page 64.

 

Save: 

Touch this button to save a session file containing 

the discovery or test results that have been collected since 

the AirCheck G2 last refreshed. 

See “Saving Sessions and 

Packet Captures,” page 85.

 

Содержание aircheck G2

Страница 1: ...on 09 2017 Copyright 2017 NETSCOUT SYSTEMS INC All rights reserved All product names are trademarks of their respective companies Wi Fi is a registered trademark of the Wi Fi Alliance AirCheck G2 Wire...

Страница 2: ...nse Agreement All other Use is prohibited except as described herein This Product may contain third party technology NETSCOUT may license such third party technology and documentation Third Party Mate...

Страница 3: ...tents 5 Internal Battery Charging and Life 5 II AirCheck G2 Tester Physical Features 6 III The AirCheck G2 Home Screen 7 IV Discovering Networks and Access Points 9 The Networks List Screen 10 How to...

Страница 4: ...VII Detecting Interferers 32 The Interferer Events List Screen 32 The Interferer Event Details Screen 34 VIII Using AutoTest to Diagnose Your Network Health 36 AutoTest Air Quality 36 802 11 Utilizati...

Страница 5: ...g Network Security Credentials 49 How to Enter credentials from the Networks or Access Points list 49 How to Enter credentials in the Settings menu 50 How to Enter credentials in AirCheck G2 Manager 5...

Страница 6: ...w to Locate an AP Client or Interferer 64 How to Search using the Internal Antennas 65 The Locate AP Screen 66 The Locate Client Screen 67 The Locate Interferer Screen 69 Using the External Directiona...

Страница 7: ...s 85 How to Save a Test Session 85 How to Save and View a Packet Capture 86 Managing Files on the AirCheck G2 Tester 86 How to Rename and Delete a file 86 How to Export files to a USB drive 87 How to...

Страница 8: ...thernet Settings 97 How to Configure a Test Target for Ethernet Tests 97 Thresholds 99 AutoTest Settings 101 How to Configure AutoTest settings 101 iPerf Settings 101 Test Targets 102 How to Add a Use...

Страница 9: ...Antennas 113 Wi Fi Adapter 114 Certifications and Compliance 117 Federal Communication Commission and Industry Canada Interference Statement 118 Important Note FCC and IC Radiation Exposure Statement...

Страница 10: ...viii What Networks or Access Points Come into Range as I Move 128 How Can I Document My Network and My Test Session 128...

Страница 11: ...ss Points List 15 8 Select BSSID to View AP Details 17 9 Access Point Details Screen 18 10 Channels Utilization Screen 21 11 Select Channel Screen 23 12 Channel Details Screen 24 13 Channels Overlap S...

Страница 12: ...gs Menu Screen 48 31 Network Details Screen 49 32 Configured Networks in Settings 50 33 Settings Profiles Menu 52 34 Profiles Save As 53 35 AutoTest Air Quality Results Screen 54 36 Thresholds Screen...

Страница 13: ...Roaming Test Connection Range 75 55 AP Range Test Screen 78 56 AP Range Test Connection Range Graph 79 57 Select iPerf Server Screen 80 58 Touch to Select an iPerf Server 81 59 iPerf Test TCP Results...

Страница 14: ...etwork or device s name to view its detailed connections and measurements The Channels utilization screen allows you to examine in depth the usage for all channels in your network AutoTest provides a...

Страница 15: ...software from Link Live at https app link live com downloads See Getting Started with the AirCheck G2 Manager PC Application page 47 About this Manual This User Manual covers all AirCheck G2 Tester fu...

Страница 16: ...MA 01886 www NETSCOUT com Safety Information Table 1 gives descriptions of the safety symbols used on the Tester and in this manual Table 1 Safety Symbols Warning or Caution Risk of damage to or destr...

Страница 17: ...cal aid Do not short the battery terminals together Do not disassemble or crush battery cells and battery packs Do not put battery cells and battery packs near heat or fire Do not put in sunlight Caut...

Страница 18: ...s However you can use the Tester while you charge the battery To charge the battery connect the AC adapter to the Charging Port shown in Figure 1 on page 6 The battery life is approximately 4 5 hours...

Страница 19: ...hen the Tester is on press for one second to shut it down For hard power off without software shutdown press for four seconds The Power LED glows green when the unit is on and glows red when the batte...

Страница 20: ...See Customizing the Tester for your Network page 48 Networks This function discovers wireless LANs and displays the number of networks discovered in parentheses Touch this row to view the discovered...

Страница 21: ...our Network Health page 36 Ethernet Test This function runs a wired network test across 10 100 1000 Mbps links and verifies Power over Ethernet PoE Touch this row to begin an Ethernet test and open th...

Страница 22: ...Home Screen go to Settings 802 11 Settings Bands The Networks and Access Points screens automatically update with each update cycle An SSID is in black text if the network or access point is in range...

Страница 23: ...uch the Sort field to change the order in which networks are listed The value by which the list is sorted shows prominently for each network For example if you change to Sort by Client Count the Netwo...

Страница 24: ...icon appears to the right of the active filter Touch the icon to remove the filter Touch the Help button on the Filter Networks By screen for more detail about each option SNR Signal to Noise Ratio a...

Страница 25: ...twork For help searching Sort the Networks list by Client Count to be able to see the number of connected clients for each discovered network on the list screen Figure 5 shows the Networks list sorted...

Страница 26: ...does not have security enabled Yellow closed lock One or more access points use WEP or Cisco LEAP security protocol These are less secure than other protocols Green closed lock All access points use...

Страница 27: ...the discovery or test results that have been collected since the AirCheck G2 last refreshed See Saving Sessions and Packet Captures page 85 The Access Points List Screen Touch Access Points on the Ho...

Страница 28: ...h the list is sorted shows prominently for each access point For example if you change to Sort by Client Count the Access Points list screen displays the number of connected clients for each AP instea...

Страница 29: ...rently applied For example if the list is sorted by Client Count the number of clients connected to the access point will appear in this space on the screen For Access Points this space can also show...

Страница 30: ...n to open the Details screen for that AP When Group Virtual APs is turned On multiple SSIDs from the same AP radio are shown and counted as one AP If you touch one of these access points to open its D...

Страница 31: ...stom Signal Adjustments Noise Level The noise level in dBm of the channel used SNR Signal to Noise Ratio is a measure of signal strength relative to noise an indication of signal quality for a reliabl...

Страница 32: ...to Settings 802 11 Settings Default AP Authorization Clients The number of clients connected to the AP Touch this row to open the Clients list screen with the clients filtered for the selected AP Band...

Страница 33: ...rk If the Tester cannot hear an access point consider the following possible causes The Tester cannot hear the access point because you are too far away The access point does not beacon when the Teste...

Страница 34: ...scan Bands By default the Tester scans channels on the 2 4 GHz and 5 GHz bands To change the bands for this function go to Settings 802 11 Settings Bands Channel Number The channel corresponding with...

Страница 35: ...Check G2 Manager when you upload the session file Touch a channel s column to zoom in on that channel in the Select Channel screen NOTES Channels that do not have access points can still show 802 11 u...

Страница 36: ...capacity is used by 802 11 devices blue and by non 802 11 interference gray The graphs update dynamically The next lower and upper adjacent channels faded The left and right arrows for scrolling the l...

Страница 37: ...wise individual BSSIDs are shown See 802 11 Settings page 94 Clients The number of Wi Fi clients discovered on the channel Touch this row to open the Clients list screen with the clients filtered for...

Страница 38: ...to display the different bands and corresponding channels 2 4 GHz Channels 1 14 5 GHz UNII 1 2 Channels 36 64 not including 34 38 42 or 46 5 GHz UNII 2 Ext Channels 100 144 5 GHz UNII 3 Channels 149...

Страница 39: ...line extends from the top of the parabola to the AP s primary channel on the x axis Only APs with a detected signal level of 85 dBm or above are shown on the graph Touch Utilization to return to the C...

Страница 40: ...To collect client information more quickly go to Settings 802 11 Settings and enable only one band which decreases the number of monitored channels The Client List Screen The Clients list screen prov...

Страница 41: ...Security status of the AP Red open lock The network does not have security enabled Yellow closed lock One or more access points use WEP or Cisco LEAP security protocol These are less secure than other...

Страница 42: ...s the following detailed information about the client you have selected Screen Title The client s full MAC address e g 00 11 22 33 44 55 or OUI compact colon format e g Vendor 05 3f 76 See 802 11 Sett...

Страница 43: ...the 2 4 GHz or 5 GHz bands 802 11ac Uses the 5 GHz band Band Shows the Wi Fi band of the client connection Channel The primary channel the client is using Select this field to open the Channel Details...

Страница 44: ...o far away from the client The Tester cannot hear the client because the signal cannot go through a wall or some other barrier There is too much interference on the channel that the client uses Select...

Страница 45: ...detected touch the Filter button Figure 16 and then the Type field The Interferer Events List Screen The Interferer Events screen lists the interference events that have been detected in your environm...

Страница 46: ...ge of channels affected by the interferer appears in this space on the screen instead of the Band For Interferer Events this space can also show the Peak Power Channels Impacted Number of Channels Imp...

Страница 47: ...wer The average observed power output in dBm of the interfering device Peak Power The highest observed power output in dBm of the interfering device Duty Cycle The percentage of time during the most r...

Страница 48: ...Count The number of separate instances of AirCheck G2 detecting transmission from the interferer Locate Touch this button to open the Locate Interferer screen and begin locating the selected interfere...

Страница 49: ...e Thresholds configured in the AirCheck G2 s Settings Thresholds See Adjusting the Test Thresholds page 54 To run an AutoTest touch the AutoTest field on the Home Screen The AutoTest results screen op...

Страница 50: ...tion results include the top three channels in each band 2 4 GHz and 5 GHz with the most non 802 11 interference e g noise The channel utilization percentage is displayed along with a rating symbol Pa...

Страница 51: ...Hz and 80 MHz channels in the 5 GHz band by counting an AP on its primary and each secondary channel A Pass Warning or Fail icon is also displayed for each channel Adjacent Channel Interference The Ad...

Страница 52: ...irCheck G2 detects APs that have the Unauthorized status the field turns red If any Rogue Access Points are detected you can touch the down arrow to see the number and type of Rogue APs touch the blue...

Страница 53: ...lts are reported on the AutoTest results screen below the Air Quality test results In Figure 23 the Network test for Cisco4400 has run and passed Figure 23 AutoTest Network Tests NOTE When you connect...

Страница 54: ...e WPA or WPA2 Connection Test Results The Connection test results indicate whether or not you can connect to an AP for the configured network at your current location The Connection field turns green...

Страница 55: ...AP Name The name of the AP to which the Tester is connected The address starts with a vendor abbreviation prefix if the prefix is available Channel The channel the AP uses Other Connection Results Th...

Страница 56: ...t the configured gateway could be successfully pinged DHCP Server Indicates whether or not the DHCP service could be successfully pinged DNS1 and DNS2 Indicate whether the DNS server could be successf...

Страница 57: ...the current link including the measured voltage in parentheses if present NOTE You can disable the PoE test in Ethernet Settings Link Indicates whether or not a Layer 2 Ethernet link is established T...

Страница 58: ...whether or not a DHCP address was obtained Default Gateway Indicates whether or not AirCheck G2 can ping the default gateway Network Indicates whether or not AirCheck G2 can successfully reach a user...

Страница 59: ...nt and other devices claimed to Link Live navigate to the Units page from the left side navigation drawer by clicking the navigation menu icon 3 Click the Claim Unit button at the lower right corner o...

Страница 60: ...ter configuration by creating Profiles Configure security credentials for the network s containing any key devices that you are pinging Transfer Profiles with saved settings to the Tester Transfer scr...

Страница 61: ...er touch the Settings button from the Home Screen Help Touch this icon to open the embedded Help topic with a description of the current screen Changing the Location Settings and Language The Location...

Страница 62: ...etails screen In the Tester s Settings menu In AirCheck G2 Manager s Profile Setup menu How to Enter credentials from the Networks or Access Points list If you select a discovered network or AP from t...

Страница 63: ...entials for an SSID or multiple SSIDs save them to a Profile to avoid losing these settings if another Profile is loaded or if the Tester firmware is updated How to Enter credentials in the Settings m...

Страница 64: ...e Once added the network or AP name will appear in the AirCheck G2 unit s Settings menu on the Networks screen as shown in Figure 32 Using Profiles to Manage Settings and Security Credentials Profiles...

Страница 65: ...ttings as a Profile on the AirCheck G2 Tester Multiple Profiles can be saved on the Tester but only one Profile at a time can be active 1 To access the profiles screen touch the Profile name at the to...

Страница 66: ...here or forget the password you may not be able to access your Secured Profile again c Touch DONE when you finish entering the password Touch Apply when you finish configuring the Profile How to Trans...

Страница 67: ...e 4 Touch Apply 5 Confirm that you want to delete by touching Yes Adjusting the Test Thresholds The AirCheck G2 Tester illustrates the status of your network using red green and yellow colors in the f...

Страница 68: ...ngs on the Home Screen 2 Select Thresholds Figure 36 Thresholds Screen 3 Touch the and buttons to increase or decrease the measurements that will receive a rating of Pass green or Fail red The range i...

Страница 69: ...ecurity credentials if they are not pre configured and act as precursors to conducting roaming and range tests When you connect to a network the Tester usually connects through the access point that h...

Страница 70: ...en Touch the down arrow to switch between them NOTES If you specify a Ping test to a web server target that does not respond to Ping requests the test may fail even if the target is reachable The defa...

Страница 71: ...han one network a screen appears with a list of SSIDs allowing you to select the SSID to which you want to connect If the network or AP is secured and you have not configured its credentials in the cu...

Страница 72: ...from the AP IP Address IP Address The IP address of the currently established connection Captive Portal When the Captive Portal setting is enabled this portion of the test opens a web browser window...

Страница 73: ...ets could be successfully pinged or reached with a TCP Port Open test NOTE The default target is www google com but you can add and edit test targets See Defining Ping and TCP Port Open Test Targets p...

Страница 74: ...l time noise level SNR The measured real time signal to noise ratio Retry Rate The percentage of transmitted frames that are retry frames Reviewing User Defined Test Target Results While the Connectio...

Страница 75: ...irCheck G2 Tester sent to the target Pings Returned The number of pings the Tester received back from the test target Pings Lost The number of pings that were not answered Avg Min and Max Ping Rsp Tim...

Страница 76: ...est page 77 On the completed Connect to Network test screen Figure 44 press Roaming Test to begin a roaming test for the network See Performing a Network Roaming Test page 73 On either the Connect to...

Страница 77: ...an access point Go to the Access Points list screen and select the access point you want to locate to open the Access Point Details screen Figure 9 To locate a client From the Home Screen touch Client...

Страница 78: ...r Interferer 65 How to Search using the Internal Antennas Figure 45 Search Pattern for the Omni directional Antennas in the Tester Make a note of the signal strength Go to the first corner of the sect...

Страница 79: ...ly displays AP s signal level over time and the highest signal strength recorded high watermark NOTE If the AP s signal is lost a red vertical line appears on the Signal Strength line graph at the tim...

Страница 80: ...own in Figure 47 The Locate Client Screen The following information shows on the Locate Client screen Screen Title Shows the Client s MAC address The address starts with a vendor abbreviation prefix i...

Страница 81: ...ppears on the line graph Figure 48 Locate Screen Connection Lost Recovered Signal Strength The strength of the signal from the client in dBm The display shows if the Tester cannot hear the client Soun...

Страница 82: ...owing information shows on the Locate Interferer screen Interferer Type The type of interfering device you are trying to locate Last Seen The time elapsed since the device was last detected Signal Str...

Страница 83: ...ester See AirCheck G2 Physical Features page 6 The screen shows the antenna icon when you connect the antenna The Tester uses the external antenna if the antenna is connected To switch between the ext...

Страница 84: ...nt Client or Interferer 71 Figure 50 Search Pattern for the External Antenna 1 2 3 The signal can be stronger above or below you Go to the middle of the section that has the strongest signal until you...

Страница 85: ...Locating an Access Point Client or Interferer 72 Figure 51 How to Point the External Antenna...

Страница 86: ...ct Target screen which presents you with a number of roaming test targets to choose from 2 Select a target 3 Touch Apply The Roaming Test screen opens and live data starts to populate the screen How t...

Страница 87: ...lect the arrow to expand for the following detailed Ping information Figure 53 Roaming Test Ping Stats IP Address The IP address of the target to which AirCheck G2 is sending ping packets Pings Sent T...

Страница 88: ...u Displays IP Address DNS Failed Connection Range line graph The connection range over time The connection range is calculated using this formula Average Ping Response Rate Actual TX Data Rate Maximum...

Страница 89: ...Performing a Network Roaming Test 76 Press the Stop button to stop the test Press the Log button to see detailed connection activities...

Страница 90: ...mes unreliable How to Start a Range Test Once AirCheck G2 has connected to an AP the Range Test button appears at the bottom of the Connect to AP screen Figure 41 1 Touch the Range Test button to open...

Страница 91: ...s Pings Sent The number of ping packets sent Pings Returned The number of ping packets returned Pings Lost The number of ping packets lost Avg Ping Rsp Time The average ping response time Min Ping Rsp...

Страница 92: ...nd the AP s signal coverage area At the time of connection loss a red vertical line appears on the Connection Range line graph see Figure 56 but the graph continues scrolling Once AirCheck G2 comes ba...

Страница 93: ...an iPerf test Once AirCheck G2 has finished Running a Connect to Network or Connect to AP Test the iPerf Test button appears at the bottom of the Connect to Network and AP screens Figure 41 and Figure...

Страница 94: ...P address manually by touching the iPerf Server field at the top of this screen If you have recently run an iPerf test on the AirCheck G2 the iPerf Server field autopopulates with the last known iPerf...

Страница 95: ...Test Accessories that were previously discovered by the AirCheck G2 from Link Live but were not detected during the most recent scan Touch Rescan to restart the scan for Test Accessories How to Discov...

Страница 96: ...e iPerf Settings page 101 Touch Start to run another iPerf test to the same iPerf Server Results Always Included BSSID The network s BSSID SSID The network s SSID iPerf Server Address The iPerf endpoi...

Страница 97: ...rate NOTE This icon indicates that the hardware may be limiting the maximum speed measurement UDP only Results Upload Speed The network s average upload rate Upload Jitter The network s measured uplo...

Страница 98: ...access points associated clients interferers and channels does not include graphs Network and AP connection test results including iPerf tests and connection logs Ethernet test results including DHCP...

Страница 99: ...screen 2 Touch the toggle next to Packet Capture to change it to On Additional Capture related fields display 3 Optionally touch the drop down arrow next to Capture File Size to select a different cap...

Страница 100: ...k G2 when they are saved to the USB drive 1 Insert a USB flash drive into one of the AirCheck G2 s USB ports 2 On the Manage Files screen touch the down arrow to select Session Files Screenshot Files...

Страница 101: ...P address shown in the AirCheck G2 Tester When you are done with the remote session you must turn your AirCheck G2 Tester off and back on to reset it to normal operation mode Managing Profiles and Ses...

Страница 102: ...connect to the PC 2 In AirCheck G2 Manager click Profile Setup The left AirCheck G2 Profiles pane shows Profiles that are saved on the AirCheck G2 Tester 3 To transfer a Profile from the Tester to Air...

Страница 103: ...Test Sessions and Managing Files 90 6 Click Open If you wish to manually add vendor prefixes into the oui_abbr txt file use Microsoft WordPad and preserve the tab delimited fields Figure 64 oui_abbr t...

Страница 104: ...for managing Profiles See Using Profiles to Manage Settings and Security Credentials page 51 Networks The Networks settings screen allows you to add edit and delete networks and their credentials See...

Страница 105: ...ration How to Edit a network 1 Select the Edit icon 2 Make the desired changes 3 Select Apply How to Delete a network 1 Select the Delete icon 2 Select Yes in the pop up confirmation message window Ac...

Страница 106: ...All AirCheck G2 Settings 93 2 Make the desired changes 3 Select Apply How to Delete an AP 1 Select Delete 2 Select Yes in the pop up confirmation message window...

Страница 107: ...s Access Points and Clients AutoTest MAC Address Format Allows you to decide the format of MAC addresses shown in the MAC and BSSID fields Touch the down arrow to select either of the following OUI co...

Страница 108: ...els Inaudible Devices Allows you to decide how AirCheck G2 handles previously detected devices that the Tester no longer hears Select the down arrow and choose either of the following Gray Grays out i...

Страница 109: ...ests for the legal channels in the country for which it is currently configured AirCheck G2 will only transmit probe requests on channels on which it has discovered one or more APs AirCheck G2 will tr...

Страница 110: ...e or exclude a PoE test in an Ethernet test By default PoE Test is On included Touch the field to toggle the switch to Off if you wish to exclude the PoE Test from the Ethernet test Network Test Targe...

Страница 111: ...number for example Port 80 for www google com by touching the field to open a numeric keyboard Enter the port number and touch DONE when finished 6 Select Apply to confirm your test target configurati...

Страница 112: ...se Determines green yellow red indications for measured noise levels on the channel of an AP Network Details AP Details Connect to Network and Connect to AP SNR Determines green yellow red indications...

Страница 113: ...work AutoTest Network Tests Network Connection Thresholds Retry Rate The number of retry frames as a percentage of total transmitted frames during the network connection AutoTest Network Tests Connect...

Страница 114: ...entials page 49 How to Configure AutoTest settings 1 Set the Channel Scan Cycles 2 Decide to include or exclude Network Tests If you decide to include Network Tests then select the boxes for the indiv...

Страница 115: ...sholds settings where you can adjust the Target Speed Loss Percentage and Jitter thresholds for iPerf test results NOTE Loss and Jitter only apply when iPerf testing with the UDP protocol Touch Apply...

Страница 116: ...ned test targets with the following procedures 1 Select Add Test Target to open the Configure Target screen 2 On the Configure Target screen select Target to open the Test Target screen 3 Enter the IP...

Страница 117: ...n option to configure it While some options i e Number Format Audio Brightness Restore Factory Defaults and Export Log can be managed directly on the Device Settings screen many will open separate scr...

Страница 118: ...evice Export Troubleshooting Log Exports the troubleshooting log file to an external USB drive Link Live Enables or disables automatic upload of files to the Link Live Cloud Service To enable automati...

Страница 119: ...ettings for Web Proxy 1 Touch IP Address to enter the IP of the proxy server Touch DONE when you finish 2 If necessary touch Port to change the default Port number 3 Select Username to enter the proxy...

Страница 120: ...e parts that are not specified as replacement parts the warranty will not apply to the product and you can make the product dangerous to use Use only service centers that are approved by the manufactu...

Страница 121: ...y before updating The power key is disabled during a software update 8 Browse for the update file acfx on your PC and open it After receiving the files the Tester disconnects from the PC installs the...

Страница 122: ...Access Control address The unique address of the Tester on the WLAN Ethernet MAC The unique address of the Tester on the wired connection Hardware Version The version number of the Tester s hardware...

Страница 123: ...t CISPR 11 Group 1 Class A Group 1 Equipment has intentionally generated and or uses conductively coupled radio frequency energy that is necessary for the internal function of the equipment itself Cla...

Страница 124: ...output 15 Vdc at 2 amps 5 0 in color LCD with capacitive touch screen 480 x 800 pixels 1 key elastomeric power only 1x micro USB Type B port 2x USB 2 0 Type A port 3x Internal Input only Reverse pola...

Страница 125: ...ry country 2 4 GHz band 2 412 2 484 GHz channel 1 to channel 14 5 GHz band 5 170 5 320 GHz 5 500 5 700 GHz 5 745 5 825 GHz channels 34 36 38 40 42 44 46 48 52 56 60 64 100 104 108 112 116 120 124 128...

Страница 126: ...8 52 56 60 64 100 104 108 112 116 120 124 128 132 1 36 140 144 149 153 157 161 165 802 11n 40 MHz BW HT40 VHT40 5 190 5 310 GHz 5 510 5 670 GHz 5 755 5 795 GHz includes all combinations of legal bonde...

Страница 127: ...dustrial Co USI Country of origin Taiwan Data Rate 802 11a 6 9 12 24 36 48 54 Mbps 802 11b 1 2 5 5 11 Mbps 802 11g 6 9 12 24 36 48 54 Mbps 802 11n 20 MHz MCS0 23 up to 216 Mbps 802 11n 40 MHz MCS0 23...

Страница 128: ...2 11gn HT20 16 dBm 2 dBm MCS0 802 11gn HT20 15 dBm 2 dBm MCS7 802 11gn HT40 15 dBm 2 dBm MCS0 802 11gn HT40 14 dBm 2 dBm MCS7 802 11an HT20 15 dBm 2 dBm MCS0 802 11an HT20 12 dBm 2 dBm MCS7 802 11an H...

Страница 129: ...Bm 54 Mbps 802 11gn HT20 79 dBm 2 dBm MCS7 802 11gn HT40 76 dBm 2 dBm MCS7 802 11an HT20 78 dBm 2 dBm MCS7 802 11an HT40 74 dBm 2 dBm MCS7 802 11ac VHT20 64 dBm 2 dBm MCS8NSS3 802 11ac VHT40 63 dBm 2...

Страница 130: ...ertified by the National Agency of Telecommunications Anatel Conforms to relevant South Korean EMC Standards Electromagnetic Compatibility Applies to use in Korea only Class A Equipment Industrial Bro...

Страница 131: ...experienced radio or TV technician for help FCC Caution Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equi...

Страница 132: ...ations in the 5 15 5 25 GHz band are restricted to indoor usage only The availability of some specific channels and or operational frequency bands are country dependent and not accessible by the end u...

Страница 133: ...le devices used by the public is 2 0 W kg averaged over 10 grams of body tissue SAR values may vary depending on national reporting requirements and the network band Although the SAR is determined at...

Страница 134: ...for use in business environments and is not to be used in homes La operaci n de este equipo est sujeta a las siguientes dos condiciones 1 es posible que este equipo o dispositivo no cause interferenci...

Страница 135: ...with the most Wi Fi traffic The channel utilization value along with the rating is displayed The Non 802 11 Channel Utilization results include the top three channels in each band with the most non 8...

Страница 136: ...location and provide other measurements of the health of your connection such as transfer TX rate packet retries and average minimum and maximum readings for signal strength noise and SNR The results...

Страница 137: ...02 11n and 802 11ac specific capabilities such as wide channels and MCS indices supported are also displayed See The Access Point Details Screen page 17 From the Home Screen select Networks and touch...

Страница 138: ...onnect If a device cannot connect to a network or access point where does the connection procedure fail If the Connection test fails first expand the Connection test status by tapping the arrow button...

Страница 139: ...the connection to the current AP When the AirCheck G2 roams to another AP a green vertical line appears when the association to the new AP occurs Also the new AP name will appear in the top line See P...

Страница 140: ...21 Select Channels Non 802 11 interference is the gray portion of the graph bar This noise can interfere with WLAN connections or performance Non 802 11 noise can come from microwave ovens wireless te...

Страница 141: ...the Sort Networks Access Points By list select Last Seen Then move through an area Networks or access points that come into range are added to the top of the list See Discovering Networks and Access P...

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