Steren WIAT Wireless Display Tester User manual

Copyright © 2019 Steren Electronics Int’l, LLC.
All rights reserved
BL-526-106 Rev-03
WIRELESS Display Tester
User Manual

Table of Contents
Introduction
Features
Buttons Function Introduction
Operating Instructions
1.0. Power On
2.0. Standby Mode
3.0. Wake Up
4.0. Power O󰀨
5.0. Introduction of the Basic Interface
5.1. Interface of Power On
5.2. Interface of Menu
5.3. Interface of Channel Graph
5.3.1. 2.4GHz Bandwidth Channel Graph
5.3.2. 5GHz Bandwidth Channel Graph
5.4. Channel Occupancy Interface
5.4.1. 2.4GHz Bandwidth Channel Occupancy
5.4.2. 5GHz Bandwidth Channel Occupancy
5.5. Interface of Time Graph
5.6. Channel Rating
5.7. Interface of Access Points (AP) List
5.8. Interface of Signal Meter
5.9. Setting Interface
6.0. Interface of About
6.1. Battery Icon and LED Indication
P2
P2-P3
P4-P5
P6-P28
P6
P6
P6
P6
P6
P6-P7
P7
P7
P7-P9
P9-P12
P12
P12-P13
P13-P15
P15-P16
P17-P18
P18-P19
P19-P20
P20-P24
P24
P25-P28

Introduction
The Steren Wireless Display Tester (WDT) is a portable Wi-Fi
signal testing device that is designed to aid field technicians
in the testing of Wi-Fi device signal quality. It also assists in
analyzing installation issues and in troubleshooting residential
and small / medium business (SMB) wireless networks. The
device detects all the available channels and does not require
connecting to an access point (AP), with a detecting range up
to 50M/100M (indoor/outdoor).
Steren’s WDT helps technicians in finding the best Wi-Fi channel,
installation location, detecting interface environments, and in
troubleshooting during installation. The device is designed as a
hardened handheld device, with a built-in rechargeable lithium
battery, Micro USB port, and High-Definition IPS TFT LCD. The
device operates for more than 4 hours in stand-alone mode,
120 hours in power saving mode with a full charge.
Features
• Supports 2.4x GHz scanning on devices with IEEE
802.11b/g/n dual-band radio and 5.0x GHz scanning on
devices with IEEE 802.11a/n/ac dual-band radio.
• Supports 20, 40 and 80MHz channels for AP signal
received. Single-stream spatial multiplexing up to 433.3
Mbps data rate.
• The dB data directly show the signal strength of a Wi-Fi
device.
• Displays all the AP’s environments, along with the SSID,
MAC Address, frequency, channels, distance, beacon
signal strength, and encryption.
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• Roughly measures the distance between the Wi-Fi device
and WDT (precision dependent on the environment).
• Checks the data quantity of Wi-Fi device channels, signal
strength, Time Graph of AP, APs quantity etc.
• Indicates signal information without interference with a
color-coded indication of Bad, Fair, or Good status for AP
(Access Point) signal strength.
• Operates on the Android operating system.
• Built-in high gain and dual frequency 2.4GHz/5GHz
antenna.
• Built-in rechargeable 3000mAh lithium-ion battery with
PCM circuit protection board.
• 3.97’’ IPS High-Definition TFT LCD.
• Built-in water-proof speaker. Users can identify the AP
signal strength and warning message without interference.
• Standard 5 pin Micro USB port, support for over 1A
charging current and software upgrade.
• Portable design.
• Silicon cover and PMMA lens provides protection to the
LCD display as well as drop-resistance.
• Water-resistant design is based on the IP 65 standard.
• FCC and RoHS compliant.
• Pouch provided with included belt loop for wearability.
Note: Specifications subject to change without notice.
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Buttons Function Introduction
Fig. 1
Unit outline view
Note: This device should be stored in a cool, dry area.
During extended periods of non-use, the device should
be charged once every 3 months. If the device cannot be
turned on due to low battery, charge for 3.5 - 4.5 hours
or until battery is fully charged.
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5
“Up” button, move to up selection.
“Down” button, move to down selection.
“Left” button, move to left selection.
“Right” button, move to right selection.
“ENTER” button, select item.
“ON/OFF” button, power on or o󰀨 the device.
“MENU” button, show the function of menu.
“2.4/5Ghz” button, switch between 2.4GHz
and 5GHz band.
“CLEAR” button, return to the Channel Graph
UI and return to previous menu while in
Settings UI.
“NEXT” button, select next Channel Tab of
2.5Ghz in Channel Graph and Occupied
Channels UI.
For charging or Firmware upgrade
Input: 5V/2A. See Fig. 38.
Buttons Function
USB Port

Operating Instructions
1.0. Power On
Press and hold the “ON/OFF” button for 3 seconds to power
on the unit.
2.0. Standby Mode
Shortly press the “ON/OFF” button to go to standby mode.
Note: Green LED blinks during standby mode.
3.0. Wake Up
Shortly press the “ON/OFF” button, to exit from standby
mode.
4.0. Power Off
Press and Hold the “ON/OFF” button for 3 seconds, then
select “OK” to turn
o󰀨 the unit.
5.0. Introduction of the Basic Interface
5.1. Interface of Power On
Operating Instructions:
Press and Hold the “ON/OFF” button for 3 seconds to turn
on the unit. Refer to Fig. 2 and 3.
Fig. 2
The power up screen
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5.2. Interface of Menu
Operating Instructions:
Press “MENU” button, the menu list pops up on the left side
of the screen. Press again, the menu list hides. Press “Up”
and “Down” buttons to select the target function and then
press the “ENTER” button to confirm. Refer to Fig. 4.
Fig. 4
Interface of Menu
Fig. 3
The loading screen
5.3. Interface of Channel Graph
5.3.1. 2.4GHz Bandwidth Channel Graph
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Function:
On the 2.4GHz to 5GHz Wireless band, the graph of the
discovered Wireless network will be displayed. Each channel
is 22MHz wide and the channels can overlap and interfere
with each other. Channel 14 will not overlap with channel 1, 6,
11 and generally represent the best alignment. All the channels
from channel 1 to 13, will have a 5MHz interval from each other
(with the exception of channel 14 which has 12MHz interval).
The horizontal axis of the channel map represents 14 channels
of the 2.4GHz bandwidth, and the vertical axis represents the
signal strength value.
Operating Instructions:
a. Press the “MENU” button, the menu list pops up on the left
side of the screen, select “Channel Graph” and press “ENTER”
button.
b. 2.4GHz and 5GHz channel maps can be switched by
pressing the “2.4/5Ghz” button.
c. The green arrows on the top left “ ” or on the top right “ ”,
indicates more channels are detected. Press the “Right” or
“Left” buttons to move the screen to the left or to the right to
view more channels. Refer to Fig. 5.
d. Press the “ENTER” button to run or press the “ENTER”
button again to pause the channel scanning. When the device
is in run mode, icon is shown. When it’s in pause mode, icon
is shown.
Note:
1) The strongest signal will always show green & bold on the UI
graph. Refer to Fig. 5.
2) The graphic of vertical coordinates can be auto-scaled based
on the signal strength.
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5.3.2. 5GHz Bandwidth Channel Graph
Function:
The 5GHz channel graph will show a graphical representation
of the Wireless network found on the 5.15GHz to 5.835GHz
Wireless band. Each channel is 20MHz, 40MHz or 80MHz wide.
Operating Instructions:
a. Press the “NEXT” button to check CH36^CH64, CH100-
CH144, CH149^CH165 channel graph.
b. The green arrows on the top left “ ” or on the top right “ ”,
indicates more channels are detected. Press the “Right” or “Left”
buttons to move the screen to the left or to the right to view more
channels. Refer to Fig. 8.
c. Press the “ENTER” button to run or pause the channel
scanning function. When the device is in run mode, icon is
shown. When it’s in pause mode, icon is shown.
Note:
1) The strongest signal will always show green & bold on the UI
Graph. Refer to Fig. 8.
Fig. 5
2.4GHz Bandwidth Channel Graph
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2) The graphic of vertical coordinates can be auto-scaled
based on the Signal strength.
3) The symbol “^” in the headline e.g. 36^64 means the
Wireless channels signal exist in these channels range.
Refer to Fig. 6 and Fig. 8. The symbol “-” e.g. 100-144
means no Wireless channels signal (less than -90dBm) in
these channels range. Refer to Fig. 7.
Fig. 6
5GHz Bandwidth Channel Graph CH36-CH64 channel
Fig. 7
5GHz Bandwidth Channel Graph CH100-CH144 channel
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Fig. 8
5GHz Bandwidth Channel Graph CH149-CH165 channel
Fig. 9
Router channel settings
* Explanation: Above picture Fig. 8, an AP named “JM 5G
153(155)”, the “JM 5G” is the APs SSID’s name, the 153(155) is
the APs channel. The channel number display depends on the
router setting, for example:
1) If channel setting is “153”, Bandwidth setting is 80MHz, then
you will see the APs channel display 153(155).
2) If channel setting is “157”, Bandwidth setting is 80MHz, then
you will see the APs channel display 157(155).
3) The number in ( ) always shows bandwidth of the channel
number itself, either 40Mhz or 80Mhz. Refer to Fig. 9 - Fig. 11.
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5.4. Channel Occupancy Interface
5.4.1. 2.4GHz Bandwidth Channel Occupancy Function:
The 2.4GHz bandwidth channel occupancy interface will
clearly show the stacking of Wireless networks found on the
2.4GHz to 2.5GHz Wireless band channel. Refer to Fig. 12.
Operating Instructions:
a. Press the “MENU” button, the menu list pops up on the
left side of the screen, select “Occupied Channels” and press
“ENTER” button.
Fig. 10
Router bandwidth settings
Fig. 11
5GHz Wi-Fi signal channel distribution map
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b. 2.4GHz Channel occupancy of 2.4GHz and 5GHz can be
switched by pressing the “2.4/5Ghz” button.
c. Press the “ENTER” button to run or pause the channel
scanning function. When the device is in run mode, the icon
is shown, when it’s in pause mode, the icon is shown.
5.4.2. 5GHz Bandwidth Channel Occupancy
Function:
The 5GHz bandwidth channel occupancy interface will
clearly show the stacking of Wireless networks found on the
5.15GHz to 5.835GHz Wireless band channel.
Operating Instructions:
a. Press the “MENU” button, the menu list pops up on the left
side of the screen, select “Occupied Channels” and press
“ENTER” button.
b. Channel occupancy of 2.4GHz and 5GHz can be switched
by pressing the “2.4/5Ghz” button.
Fig. 12
2.4GHz Bandwidth Channel Occupancy
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14
c. Press the “NEXT” button to check the occupancy of CH36-
CH64, CH100-CH144, CH149-CH165. Refer to Fig. 13 and
15.
Note: The symbol “^” in the headline e.g. 36^64 means the
Wireless channels signal exist in these channels range. Refer
to Fig. 6 and Fig. 8. The symbol “-” e.g. 100-144 means no
Wireless channels in these channels range and displays “No
Signal” on the center of screen. Refer to Fig. 14.
Fig. 13
5GHz Bandwidth Channel Occupancy CH36-CH64 Channel
Fig. 14
5GHz Bandwidth Channel Occupancy CH100-CH144 Channel

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5.5. Interface of Time Graph
Function:
The time graph mainly shows the variations of wireless
network signal intensity with scanning time.
Operating Instructions:
a. Press the “MENU” button, the menu list pops up on the left
side of the screen, select “Time Graph” and press “ENTER”
button.
b. Time graph of 2.4GHz and 5GHz can be switched by
pressing the “2.4/5Ghz” button. Refer to Fig. 16 and 17.
c. Press the “ENTER” button to run or pause time graph
scanning. When the device is in run mode show, the icon is
shown, it’s in pause mode show, the icon is shown.
d. Press “Up” and “Down” buttons to check di󰀨erent AP time
graph.
Note: At the UI graph, the smoother the curve indicates, the
more stable the signal is. Refer to Fig. 18.
Fig. 15
5GHz Bandwidth Channel Occupancy CH149-CH165 Channel

Fig. 16
2.4GHz Bandwidth Time Graph
Fig. 17
5GHz Bandwidth Time Graph
Fig. 18
The smoother curve of the time graph
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5.6. Channel Rating
Function:
Channel Rating shows the quality of wireless network channel.
The more points present, the better channel quality is.
Green indicates the best channel quality, yellow indicates fair
channel quality, red indicates poor channel quality, and grey
indicates the lost rating scores.
Operating Instructions:
a. Press the “MENU” button, the menu list pops up on the
left side of the screen, select “Channel Rating” and press
“ENTER” button.
b. Press the “2.4/5Ghz” button to switch between 2.4GHz or
5GHz band. Refer to Fig. 19 and 20.
c. To view the rating of the scanned channels, press “Up” or
“Down” button.
d. Press “ENTER” button to run or pause the function of
channel rating. When the device is in run mode, the icon is
shown, it’s in pause mode, the icon is shown.
Fig. 19
2.4GHz Bandwidth Channel Rating
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5.7. Interface of Access Points (AP) List
Function:
Access Points (AP) list shows the SSID, frequency and channel
of the wireless access point (WAP), MAC address and signal
security configuration such as WPA, WPA2, distance between
the wireless access point and the tester. The signal strength
indicator is on the right side. Green indicates Good signal
strength, Yellow indicates Fair signal strength, and Red indicates
Poor signal strength. Refer to Fig. 21.
Operating Instructions:
a. Press the “MENU” button, the menu list pops up on the left
side of the screen, select “Access Points” and press “ENTER”
button.
b. For the scanned AP, press “Up” and “Down” buttons to view
the Access Points on the list.
c. Press “ENTER” button to run or pause the function of AP list.
When the device is in run mode show, the icon is shown, when
it’s in pause mode, the icon is shown.
Note: If the device doesn’t detect the APs, it displays “No Signal”
in the center of the screen. Refer to Fig. 22.
Fig. 20
5GHz bandwidth Channel Rating
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