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9.0 Spectrum Analyzer

Use the Spectrum Analyzer icon from the home menu to access the Spectrum Analyzer menu. The Spectrum Analyzer is a

hardware option. It displays all RF spectrum activity in the WiFi 2.4 GHz and 5 GHz bands as well as WiFi and non-WiFi sources

of interference (e.g.: cordless phones, microwave ovens, Bluetooth devices, etc.). The Spectrum Analyzer application:

Helps determine the best available WLAN channels quickly for optimal performance

Helps to visualize and locate RF signals in the 2.4 GHz and 5 GHz spectrums

Discover and remedy competing access points

Optimize WLAN networks by locating and eliminating non-WiFi interference sources

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9.1 WiFi Spectrum Analyzer Specifications

The WiFi Spectrum Analyzer requires connecting an external antenna to the connector marked “Spectrum”, located on the

connector panel on top of the module (see

WiFi Module Connector Panel

Spectrum Analyzer specifications:

Frequency Range: 2.400 to 2.495 GHz and 5.150 to 5.850 GHz

Amplitude Range: -100 to -6.5 dBm

Amplitude Resolution: 0.5 dBm

Resolution Bandwidth: 214.286 KHz in 2.4 GHz band, 464.286 KHz in 5 GHz band

Sweep Time: (2.4 GHz) 507 msec

(low 5 GHz) 1242 msec

(mid 5 GHz) 1587 msec

(high 5 GHz) 641 msec

The Spectrum Analyzer option is shipped with a dipole omni-directional antenna:

Antenna Type: Dipole

Frequency: 2.4-2.5 GHz / 4.9-5.8 GHz

Connector: SMA (female) 50 Ohms

Gain: 2 dBi/2.5dBi

VSWR: 2

Polarization: Linear Vertical

Pattern Type: Omni-Directional

Antenna Length: 109mm

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9.2 Spectrum Analyzer Default View

The WiFi Spectrum Analyzer automatically starts up as the default view for the 2.4 GHz frequency band.

Tap on

5 GHz Band

to switch to monitoring the 5 GHz frequency band. Refer to

Appendix A: 2.4 GHz and 5 GHz Technology

Overview

for information on the 5 GHz frequency band.

The default view displays the Levels Graph (see

Levels Graph

) and Density Graph (see

Density Graph

), and Waterfall View (see

Waterfall Graph

) on a single screen. To access these views with more details, tap on the corresponding function keys on the right.

Spectrum Analyzer Main Menu

WiFiAirExpertSeries_eManual_D07-00-120P_Rev A00

Summary of Contents for WiFi Air Expert Series

Page 1: ...WiFiAirExpertSeries_eManual_D07 00 120P_Rev A00...

Page 2: ...tennas 4 2 WX150 Platform Overview 4 2 2 Test Port Interfaces and Antennas 4 2 2 1 Connector Panel 4 2 2 2 WX150 Antennas 4 2 3 Quick Side Buttons 4 3 Home Menu and Navigation 4 3 1 Screen Icons 4 3 2...

Page 3: ...Function Keys 7 1 3 AP Scan Fields and Measurements 7 1 4 AP Scan Details Window 7 1 5 AP Scan Warning Conditions 7 2 AP Locate Function 7 3 AP Graph 7 3 1 AP Graph Navigation 7 3 2 AP Graph Function...

Page 4: ...alyzer Specifications 9 2 Spectrum Analyzer Default View 9 2 1 Spectrum Analyzer Default View Function Keys 9 2 2 Using the Marker Function 9 3 Levels Graph 9 3 1 Using the Show AP Function 9 4 Densit...

Page 5: ...1 0 V Perf 11 1 V Perf Configuration Settings 11 2 V Perf Test Results 11 2 1 V Perf Summary Results 11 2 2 Data Rate vs Phy Rate 11 2 3 V Perf Graph Results 11 2 4 V Perf Details Results 12 0 Etherne...

Page 6: ...be B 3 1 Running a Manual V Perf Test to a V Probe B 3 2 Running a Quick V Perf Test to a V Probe B 4 V Probe Configuration B 4 1 V Probe Configuration from a PC Web Browser B 4 2 V Probe IP Configura...

Page 7: ...ed electronically or otherwise without written permission from VeEX Inc This device uses software either developed by VeEX Inc or licensed by VeEX Inc from third parties The software is confidential a...

Page 8: ...ciated WiFi Clients present in the network Locate rogue APs and clients with directional antenna One button Auto Test evaluates the health of the WiFi network with analysis of security coverage interf...

Page 9: ...nd protection circuitry sealed in its plastic container that shall not be disassembled or serviced The test set unit s battery pack is also fitted with a safety connector to prevent accidental short c...

Page 10: ...form all work at a workplace that is protected against electrostatic build up and discharging Never touch any exposed contacts printed circuit boards or electronic components Always store test modules...

Page 11: ...r panel A Ethernet RJ45 10 100 1000Base T Optional interface for 10 100 1000Base T Ethernet test For Ethernet interface operation refer to Ethernet Setup B Ethernet SFP 1000Base X Optional interface f...

Page 12: ...back to TOC WiFi Directional Antenna Directional Antenna For the WiFi AP or Client Locate function it is possible to use a directional antenna connected to the WiFi connector from the connector panel...

Page 13: ...o TOC 4 2 2 Test Port Interfaces and Antennas 4 2 2 1 Connector Panel The connector panel located at the top of the unit comprises the following test ports WX150 Connector Panel Note Ethernet RJ45 10...

Page 14: ...esults Note Button functions vary depending on the product Push in Reveal function keys such as starting stopping tests Left key Scrolls up and down through table results Right key Scroll left and rig...

Page 15: ...lays if no Client is detected or Client Scan test has not been started D Connection This icon displays the connection status to the AP From the Home menu tap on this icon to open up the IP Connect men...

Page 16: ...results table and locate function see Client Scan menu E Spectrum Analyzer Open the Spectrum Analyzer menu to access the Spectrum Analyzer results Note that this function requires hardware option See...

Page 17: ...testing functions Ping Trace Route ARPWiz see Ethernet IP Connect C V Perf Open the V Perf menu to access the V Perf throughput performance testing function Note that prior IP connection must be estab...

Page 18: ...ese channels it will be flagged as an error In World mode the unit accepts all channels Active Probe From the drop down menu select ON or OFF If Active Probe setting is ON the Air Expert transmits pro...

Page 19: ...ial and Business Location Label lists comes with 14 pre populated location labels reflecting the most common places to run the site survey Each can be further edited or overwritten using the magnifyin...

Page 20: ...the drop down menu select Enable or Disable Enable The values in the threshold setting will be used to display pass warning and fail results in the Coverage Auto test and AP scan menus Disable SNR wi...

Page 21: ...arning and Fail results that reveal network quality Because Pass Warning and Fail results are determined from threshold values changing threshold values will alter test results How to Configure Thresh...

Page 22: ...red Adjacent Channel Interference Compares the number of APs on a channel adjacent to the AP under test Returns Pass Warning or Fail result Applicable Screens Interference Auto test Note Only APs whos...

Page 23: ...nnels are used on the network It also detects hidden networks and encryption status Coverage Check During the Coverage Check see Coverage Check Auto Test the Air Expert identifies APs and Channels wit...

Page 24: ...2 Press the red X to close the AP filter selection and return to the Setup menu 3 Tap on the check box next to AP Filter to enable it Note that the AP filter list is first populated by running a regul...

Page 25: ...test see Auto Channel Selection Go back to top Go back to TOC 6 2 2 Auto Test Results Navigation For each test category one of the following icons is displayed If no icon is displayed the test was dis...

Page 26: ...asionally network managers prefer to hide the AP s SSID for security reasons In that instance a blank SSID name or hidden is displayed instead The Hidden AP test displays a warning for all Hidden APs...

Page 27: ...Level Threshold value are examined as possible sources of interference for this test Other APs sharing on the same overlapping or adjacent channels but with a signal level lower than the threshold val...

Page 28: ...AP it will be ignored during the test Note If AP Filter is enabled see AP Filter Setup only APs selected in the filter list are taken into account for these tests Go back to top Go back to TOC 6 2 7 C...

Page 29: ...ell as current utilization and noise levels on all the channels in order to recommend the best channel for a new AP deployment In the 2 4 GHz frequency band the ACS algorithm recommends a channel betw...

Page 30: ...over time Go back to top Go back to TOC WiFiAirExpertSeries_eManual_D07 00 120P_Rev A00...

Page 31: ...re than 2 minutes are aged out of the table AP Scan Table Go back to top Go back to TOC 7 1 1 AP Scan Table Navigation Discovered AP scan measurements are displayed in a table format Common table navi...

Page 32: ...electing Apply the AP Scan table displays only entries corresponding to the input Press the Clear Filter function key to clear existing filters and display all AP Scan entries BSSID will be filtered b...

Page 33: ...all AP Scan entries Go back to top Go back to TOC 7 1 3 AP Scan Fields and Measurements The following measurements are displayed in the AP Scan Table results as well as the AP Details window Results...

Page 34: ...t this information If this information is not reported by the AP the field displays N A The Details function key provides these additional measurements Vendor AP s manufacturer name If this informatio...

Page 35: ...nu and the current measured noise level is above the green level threshold SNR Level warning If the Signal to Noise Level Threshold is enabled in the Measurement Setup menu and the current measured SN...

Page 36: ...ternal antennas For antenna selection refer to WiFi Setup AP Locate Function SSID Service Set Identifier advertised by the Access Point The SSID is the logical name used to identify the network SSID i...

Page 37: ...ted in blue Graph Pane Navigation Use the Up and Down arrow keys to scroll through Access Points detected on the same channel Use the Left and Right arrow keys to scroll through Access Points on adjac...

Page 38: ...al Level View From the AP Scan Table select an SSID from the list and select the Track Level function key to start tracking the Signal Noise level and SNR for the SSID selected The Track Level functio...

Page 39: ...OK to select the labels or More for additional labels The Track Level function starts recording the Signal Noise level and SNR values for the SSID under test A measurement is made every second Signal...

Page 40: ...ction keys displayed while Signal Level tracking is running Start Scan Starts a new AP network scan Warning Starting the network AP will stop the current Signal Level tracking in progress Stop Stops i...

Page 41: ...ed in the Setup menu see Signal Level Tracking with Location Label Last Rx frame counter The Signal level tracking measurement is based on the Signal level measured on frames received from the SSID un...

Page 42: ...tilization Results are updated while the network scan is running Channel Utilization measures the percentage of time that the RF channel is detected as busy and that the radio could not initiate commu...

Page 43: ...o additional functions The functions are accessed through the right side function keys Channel Table selection 7 5 2 Channel View Function Keys The function keys are located on the right hand side of...

Page 44: ...WiFi interference on the same frequency as the channel under test The x axis displays the channel number the y axis displays utilization in The number included in each bar graph displays the number of...

Page 45: ...cy in GHz WiFi Channels are 20 MHz wide Max Freq Channel s upper frequency in GHz WiFi Channels are 20 MHz wide List of co channel APs List of SSIDs of the APs located on the channel and their signal...

Page 46: ...Table Go back to top Go back to TOC 8 1 1 Client Scan Table Navigation Refer to section AP Scan Table Navigation for information on how to navigate sort filter and select table features Go back to to...

Page 47: ...interface If the WiFi client is not associated to any network this field displays not associated Max AP Rate Maximum Phy rate in Mbps supported by the AP to which the client is associated If the clien...

Page 48: ...the Client Scan Table and pressing Details opens up a pop up window with additional details Fields displayed on the details window may or may not be present depending on the information being adverti...

Page 49: ...e function key to open up the Locate function for the client selected The Locate function is used to track the physical location of the client It measures the signal level of the traffic received from...

Page 50: ...Hz and 5 150 to 5 850 GHz Amplitude Range 100 to 6 5 dBm Amplitude Resolution 0 5 dBm Resolution Bandwidth 214 286 KHz in 2 4 GHz band 464 286 KHz in 5 GHz band Sweep Time 2 4 GHz 507 msec low 5 GHz 1...

Page 51: ...Waterfall Switches the screen view to display the Waterfall view see Waterfall Graph Restart Clears all previous measurements and restarts the spectrum measurement Marker ON or OFF Toggle function key...

Page 52: ...w The y axis displays the signal s strength in dBm from 100 dBm to 10 dBm By default the current yellow average green and maximum blue signal levels are displayed simultaneously Use the checkboxes Cur...

Page 53: ...ion with spectrum information which facilitates identifying WiFi vs non WiFi interference sources Spectrum Analyzer Levels Graph with AP overlay Go back to top Go back to TOC 9 4 Density Graph The Den...

Page 54: ...n the spectrum graph Use the Signature function Using the Signature Function to identify interferers signatures Spectrum Density Graph Go back to top Go back to TOC 9 4 1 Using the Signature Function...

Page 55: ...making the selection as it only reflects the strength i e proximity to the interference source For descriptions of common interference sources refer to Common WiFi Interferers The following figure sho...

Page 56: ...requency Note that 802 11ac devices have the same shape but can only operate in the 5 GHz frequency band 802 11n 40 MHz Signature BPSK QPSK 802 11b g 802 11b g devices using older technology of BPSK Q...

Page 57: ...pike like interference in the 2 4 GHz frequency band AV transmitter Signature Bluetooth Bluetooth devices are frequency hopping across the 2 4 GHz frequency band Their signature appears as a series of...

Page 58: ...ill transmit over a single frequency with a width of about 2 MHz but use a new frequency at each use Generally cordless phones are disruptive because they emit with high power Cordless Phone Signature...

Page 59: ...only operates in the 2 4 GHz frequency band and uses only 20 MHz channel width ERP OFDM 802 11g Wireless Audio Wireless audio systems transmit audio to remote speakers using the 2 4 GHz frequency ban...

Page 60: ...ngth The waterfall view is particularly useful to detect intermittent interference or interference where frequency changes over time hopping The x axis displays the WiFi channel number In the 2 4 GHz...

Page 61: ...e high signal level Use the Marker function Using the Marker Function to view the level values for the frequency WiFi Spectrum Analyzer Waterfall View Go back to top Go back to TOC WiFiAirExpertSeries...

Page 62: ...nction Keys The function keys are located on the right hand side of the screen and allow access to advanced functions Different function keys are available depending on whether the network scan is run...

Page 63: ...Occasionally network managers prefer to hide the AP s SSID for security reasons In that case a blank SSID name or hidden are displayed instead BSSID Basic Service Set Identifier for the AP The BSSID i...

Page 64: ...le icons The following statuses can be displayed This icon indicates that the connection credentials for the AP are saved to a profile This icon indicates that the connection credentials for the AP ar...

Page 65: ...P s SSID for security reasons In that case a blank SSID name or hidden are displayed instead BSSID Basic Service Set Identifier for the AP The BSSID is a 48 bit unique MAC address of the AP s network...

Page 66: ...tion on cause of failure Failed AP Connection Details Additional information in the Connection Status page provides details on causes of the failed requests In the example above failure is due to the...

Page 67: ...or Disable If set to enable Gateway and DNS fields become available Gateway Off or On IPv4 address of the network gateway DNS Off Primary or Primary Secondary If set to Primary or Primary Secondary a...

Page 68: ...address of the Primary DNS server DNS2 Indicates the IP address of the Secondary DNS server Go back to top Go back to TOC 10 5 Ping Ping is a popular computer network tool used to test whether a parti...

Page 69: ...Result tab and starts the Ping test The following results are displayed for the Ping test Ping Test Results Ping status In Progress Finished Destination unreachable or Fail Destination Indicates the d...

Page 70: ...Out Enter the maximum time allowed between an ICMP echo and response at each hop Max Hop Enter the maximum number of network devices the packet is allowed to transit Once the parameters are configure...

Page 71: ...ng parameters can be setup for the ARPWiz test ARPWiz Setup Profile Drop down selections are Default Delete Save Save As Begin IP Set the start address for the desired IP range using the numeric keypa...

Page 72: ...ms Time for ARP response message MAC Address MAC Hardware address of the device responding to ARP message Note If there is no response from a particular IP address it is omitted from the table Go back...

Page 73: ...that validates whether TCP UDP parameters in the network are set up correctly Test traffic is generated between a unit acting as a server and a unit acting as a client A unit acting as a server shoul...

Page 74: ...ns that can tolerate frame loss such as VoIP Transfer Direction From the drop down menu select Client to Server or Server to Client In the Client to Server transfer direction test data is transferred...

Page 75: ...e used to display pass or fail results in V Perf Throughput test results If V Perf Throughput Threshold setting is Disabled V Perf throughput measurements won t be evaluated against Pass Fail threshol...

Page 76: ...of the test this field displays the average value of data throughput UDP or TCP in Mbps over the entire duration of the test In addition to the data throughput in Mbps the value is also displayed as...

Page 77: ...graph is graduated from 0 to 100 in 10 increments 0 represents a data rate of 0 Mbps and 100 represents the Max Phy rate advertised by the AP Depending on the APs capabilities this value will vary V P...

Page 78: ...ring achieved TCP or UDP data rates to the WiFi Physical Layer rate the following considerations should be taken into account Achieved Data rate vs Max Phy rate The Maximum Phy Rate advertised by the...

Page 79: ...ate are expected to be around 60 to 65 of the Phy rate due to IP and TCP UDP protocol overhead and WiFi physical layer and protocol layer overhead In addition when running iPerf3 on a server the serve...

Page 80: ...displays an error message In case of test failure verify if the server s IP address and port number configured in Setup see V Perf Configuration Settings are accurate Also make sure that the V Perf s...

Page 81: ...in UDP Server to Client Mode download V Perf Throughput Loss Graph X axis Time in HH MM SS format Y axis Received Packet Loss updated each second 11 2 4 V Perf Details Results The V Perf Details resul...

Page 82: ...ssion rate depends on the AP and Client capabilities as well as the RF environment Refer to Data Rate vs Phy Rate for details The WiFi Air Expert series Maximum Phy Rate is 1299 Mbps Phy Rx bit Rate D...

Page 83: ...ct the test mode The module can be configured for WiFi utilization Ethernet Copper port 10 100 1000T or Ethernet Fiber port 1000X 100FX utilization Auto Negotiation On or Off Matches the test set s ne...

Page 84: ...Connect menu The Ethernet IP Connect functions work similarly to the WiFi IP Connect functions Refer to the following sections for more information on IP Connect functions Network Configuration Networ...

Page 85: ...f The Ethernet V Perf function works in the same way as the WiFi V Perf function For more information on the V Perf menu refer to V Perf menu Go back to top Go back to TOC WiFiAirExpertSeries_eManual_...

Page 86: ...ink is DOWN Pair Termination Indicates properly terminated pair Indicates an open pair Indicates improper pair termination short high crosstalk or anomalous coupling Cable Length estimation of properl...

Page 87: ...Blinking in Progress Go back to top Go back to TOC WiFiAirExpertSeries_eManual_D07 00 120P_Rev A00...

Page 88: ...y the customer along with proof of purchase within thirty 30 days of the request by the customer freight prepaid Additionally during the warranty period VeEX Inc will provide without charge to the cus...

Page 89: ...Product Specifications The most recent product specifications can be downloaded from the WX150 product page of the VeEX website Go back to top Go back to TOC WiFiAirExpertSeries_eManual_D07 00 120P_Re...

Page 90: ...f European Union and European Free Trade Association EFTA EN61010 1 Click here for CE Declaration of Conformity relating to VeEX products What is RoHS RoHS is the acronym for Restriction of Hazardous...

Page 91: ...wide distribution channel provides uncompromised product support Visit us online at www veexinc com for latest updates and additional documentation VeEX Incorporated 2827 Lakeview Court Fremont CA 945...

Page 92: ...Access Points Channel 36 is the first channel in the spectrum ranging from 5 170 to 5 190 GHz and centered at 5 180 GHz The 5 GHz band is further sub divided into four ranges UNII 1 UNII 2 UNII 2 ext...

Page 93: ...est status LED OFF V Probe is turned off LED Solid Green V Probe is on and fully operational LED Quickly Blinking Green If the V Probe s LED is quickly blinking 200 ms interval it indicates that a V P...

Page 94: ...Base T interface or WiFi air interface and use V Probe Discovery function B 3 Running V Perf Tests to a V Probe B 3 1 Running a Manual V Perf Test to a V Probe Note Before running V Perf make sure tha...

Page 95: ...nged tap on the magnifying glass icon If any V Probe IP settings need to be modified tap on the world icon to open the V Probe web browser Alternatively type the V Probe IP address into a PC web brows...

Page 96: ...assigned DHCP IP address 1 Connect the test set to the Access Point under test from the AP Scan table accessed from the AP Scan icon on the home menu Refer to Connect AP for more information on conne...

Page 97: ...way DNS then click Apply 5 Click Reboot when prompted to do so Connect to V Probe with the new IP address via the test set or web browser B 4 2 V Probe IP Configuration 1 From the V Probe home page se...

Page 98: ...ow to setup registration Contact VeEX customer support for information about XMPP server configuration B 6 System Tools B 6 1 Reboot Click on System Tools Reboot Click Reboot when prompted to reboot t...

Page 99: ...mode Factory Reset from USB This procedure can be used when the V Probe cannot be discovered via V Probe Discovery and its IP address is unknown B 7 Safe Shut Down Safely shutting down the V Probe is...

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