Federal Communication Commission Interference
Statement
This equipment has been tested and found to comply
with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful
interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio
communications. However, there is no guarantee that
interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio
or television reception, which can be determined by
turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and
receiver.
- Connect the equipment into an outlet on a circuit
different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV
technician for help.
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1)
This device may not cause harmful interference, and (2)
this device must accept any interference received,
including interference that may cause undesired
operation.
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User’s ManualWireless USB Adapter
FCC Caution: Any changes or modifications not
expressly approved by the party responsible for
compliance could void the user's authority to operate the
equipment.
The device has been evaluated to meet general RF
exposure requirement. Minimum operation distance
5mm between device include its antenna and user body
1. Introduction
Thank you for purchasing the IEEE 802.11b/g or 802.11n
Wireless USB Adapter. This Wireless Adapter is easy to
use and easy to setup. If you have been tired of dealing
with all those messy wires to connect a laptop or PC to
office or home network, this Wireless adapter is an ideal
access solution for wireless Internet connection.
A typical Internet access application for the USB wireless
adapter is shown as the following figure:
There are two different ways to access Internet:
1. With a wireless adaptor, receiving and transferring
signal via a wireless router, then passed to an ADSL
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One 54 Mbps 802.11b/g or 150Mbps 802.11n USB
Adapter Installation disc.
User’s Manual.
modem, then to local ISP (Internet service supplier)
through a telephone line.
2. With a wireless adaptor, receiving and transferring
signal via local AP (Access Point) or so called Hotpoint
directly.
2. Package Contents:
Wireless Adapter.
Warranty
The warrants for the end user (“Customer”) that this
hardware product will be free from defects in
workmanship and materials, under normal use and
service, for twelve (12) months from the date of purchase
from its authorized reseller. Information in this document
is subject to change without prior notice.
3. Installation
To install the driver of the USB adapter, please use
administrator user account to login before the following
steps:
Tips: the latest original drivers can be down loaded from
the website of Ralink chipset manufacturer. The current
website is
http://www.mediatek.com/_en/07_downloads/01_windo
ws.php?sn=501.To find a correct driver, please identify
the chipset type applied in the adapter you have.
For Windows XP :
The system will detect a new hardware has been added,
and start the “Found New Hardware Wizard”.Click on
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“Cancle” .
1) Please insert the disc into your CD-ROM drive. The
disc should auto start ,displaying the flowing window ,if it
does not start ,open the browser window ,find the
autorun .exe file in your CD-ROM folder, click to run it.
2) Ralink has integrated all the 54Mbps
802.11b/g,150Mbps or 150Mbps 802.11n drive into one
file . Click to run the “Drive Installation ”.
Notes: Because Ralink often updates software, the
drivers contained in the disc might be changed without
prior notice.
1) Follow the instructions and prompts of the
“InstallShield Wizaed” to finish the driver installation:
a. Select the “I accept the terms of the licenseagreements”, then click the “Next”.
b. There shows a setup type window, you can select
“Install driver only” or “Install driver and Ralink WALNutility” and then click the “Next”.
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Tips:
1).The Windows XP utilizes a "Wireless Zero
Configuration( WZC)" Service built into the operating
system. Many wireless network adapter cards utilize this
service.
2). Ralink- the chipset manufacturer has developed an
utility for setting up wireless connection. If you select this
item, you can switch between the Windows XP’s WZC
service and the Ralink WLAN utility service later.
c. Click the “Install” to confirm the installation, there
shows the installation progress.
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d. Click “finish” to finish the driver installation.
For Windows 7:
Once the wireless USB adapter be plugged into an USB
port, the flowing message will appear on screen .
The following installation procedures are similar to those
of Windows XP .Please refer to the installation steps for
Windows XP.
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4. Wireless Connection
For Windows 8:
The installation procedures are similar to those of
Windows XP .Please refer to the installation steps for
Windows XP.
For Windows XP :
1) After finishing driver installation, insert the USB
adapter to Notebook or PC that supports USB 2.0/1.1
interface.
Remarks: Make sure to connect the adapter to an USB
port on your computer directlyrather than
an USB hub. Although it might work when connecting
with an USB hub, the likelihood of configuration
problems will be higher.
2) The system shows a wireless utility icon in the
Windows system tray, which locates in the bottom-right
corner of your computer screen, and pops up a message
that indicates a new hardware is found and installed,
something like this:
3) Before you begin, ensure WZC is enabled,by
right-clicking on the Ralink iconin the task bar in the
bottom right corner of your screen.
In the menu that appears, select “Use Zero Configure
as Configuration Utility” to use Windowns wireless
management feature,Windows Zero Configure(WZC)
helps to manage your Wireless Network Connection.
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4) Right click the icon and then select “View Available
Wireless Networks” to launch the utility, the Wireless
Network Connection window appears and displays your
wireless network listed with the SSID you chose.
Notes: Before configuring your WiFi access, you need to
have your network’s SSID (service set identifier),
security key and authentication type handy. Check the
documentation coming with your router, ask your
network administrator to get the information.
5) If you don't see your network, click “Refresh network
list” in the upper left corner. If you are locating within the
valid range of hotspots or wireless routers, all available
networks will be recognized and listed automatically.
Click your preferred network, and then click “Connect” in
the lower right corner.
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1) After the installation of Ralink utility, the system
6) If the network security key hasn’t been inputted
before, Windows XP prompts you to enter the network’s
security key to access the wanted SSID. Type the
encryption key that you wrote down earlier in both the
Network key and Confirm network key boxes, and then
click “Connect”.
Tips: If there are free hotspots, simply select the network
you want from the list displayed, then click Connecting. It
tries to launch your Internet browser —you should be
connected to the Internet.
If there is a pay hotspot, signing in or up will require
either to enter your login information-if you‘re an existing
customer, or to enter your credit card information for
payment, it is just decided by you. Then clicking the
Connecting, your default Internet browser will launch and
take you to the service provider’s login page. Most
providers have very simple and step-by-step instructions
for you to sign up and then to be connected. Another way
to access the service provider’s login page is to simply
launch your Internet browser, if there’s a pay network
available, you’ll be taken directly to the login page.
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shows a special wireless utility icon in the Windows
system tray, which locates in the bottom-right corner of
your computer screen:
2) when an USB wireless adapter is inserted into an
USB 2.0/1.1 port of Notebook or PC,the icon changes
colors according to the wireless signal quality.
3) Double-click the icon or right click the icon and then
select “Launch Config Utility” to launch the utility, the
RaUI window appears like
The Ralink wireless utility starts in compact mode as
shown above, provides profile management, the
available networks listing, a statistical counter display,
Wi-Fi multimedia (WMM), protected Wi-Fi setup, Cisco
compatible extensions (CCX), call admission control
(CAC), radio controls, Ralink driver/utility information,
and help functions. Clicking the expanding icon
can change to the full mode as shown below:
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Station mode (Client mode ) : it is the default
AP mode : it sets the USB wireless adapter as an
4) Below are the steps to connect to a wireless network
In this utility, there are two applications can be
selected : the Station mode and AP mode .
access way , the USB wireless adapter services as a
client to acess Internet through other router or AP.
AP,which allows the other users can connect to Internet
through your computer. Before using the mode, it must
be available that an existed Internet connection via wire
Ethernet connection or by 3G wireless connection.
Tips:Point the cursor to the Ralink icon location on
bottom-right corner of your computer screen, right click
the mouse, from the pop up list, you can select the
station mode or AP mode.
using the Ralink Utility.
a. Open the Ralink Utility by double-clicking on the
Ralink Utility icon in the taskbar.
b. The Ralink Utility appears ,by default connected to
an available open wireless network. Check the name of
the network to which you are connected. If this is the
correct network, no father steps are required.
c. To connect to an alternative network ,click the
Available Networks button.
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d. In the Available Networks window that appears,
select the name of the network to which you are
connecting.Then click the connect iconand wait
several seconds while the Utility sets up a connection .
e. The Ralink Utility automatically detects and displays
the security settings of the network to which you are
connecting in the Profie Setting screens. If the Utility
shows that WPA-PSK or WPA2-PSK security is detected
as shown Below , click the right arrow to save your
settings.
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f. In the screen that displays, in the ‘WPA Pre shared
Key’ field ,type a security key, the same as that used by
the AP or wireless router to which you are connecting.
Click the right arrow to save your settings and connect to
the network.
g. Once you are connected the Avaliable Networks
shows the status of your connection.
For Windows 7:
Notes :Windows Zero Configuration (WZC) is not
necessary in Windows Vista, Windowns 7 or higher
version OS, you can use WZC and the Ralink Utility
to manage the adapter simultaneously .
1) Click on the wireless networks icon in the task bar
in the bottom right hard corner of your screen to diaplay
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the avaliable wireless networks.
2) Click the “Connect”button to connect to the select
network .
3) If your network has wireless security Configured,
enter the required setting. The following is an example
only, your network setting may differ.
4) The success of your connection is indicated by the
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wireless network icon.
Notes :The steps of using the Ralink Utility to connect a
wireless network is the same as those described in
Windowns Xp .
In addition to station and AP mode,rhere is the Client +
AP Mode to be selected in windows 7 as well.
Which means: other wireless devices connect to ->
Soft-AP of the adapter -> the adapter (Client mode with
Internal ICS sharing )-> connect to other AP or router ->
Internet.
This mode lets you use the adapter both as a Soft-AP
and client at the same time. Switch to this mode,you
can let a wireless adapter be connect to a wireless
(Soft-AP) with Internet connected, and let others adapter
be indirectly connect to Internet via the Soft-AP wireless
network.
For Windows 8:
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3) If your network has wireless security Configured,
1) Click on the networks icon in the task bar in the
bottom right hard corner of your screen to diaplay the
avaliable wireless networks.
2) Click the “Connect”button to connect to the select
network .
enter the required setting. The following is an example
only, your network setting may differ.
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4) You can select turn on sharing or connect to device
or not.
5) The success of your connection is indicated by the
wireless network icon.
Notes :The steps of using the Ralink Utility to connect a
wireless network is the same as those described in
Windowns Xp .
In addition to station and AP mode,rhere is the Client +
AP Mode to be selected in windows 8 as well.
Which means: other wireless devices connect to ->
Soft-AP of the adapter -> the adapter (Client mode with
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Internal ICS sharing )-> connect to other AP or router ->
Internet.
This mode lets you use the adapter both as a Soft-AP
and client at the same time. Switch to this mode,you
can let a wireless adapter be connect to a wireless
(Soft-AP) with Internet connected, and let others adapter
be indirectly connect to Internet via the Soft-AP wireless
network.
For more details about the RaUI utility, please read
the help information of the utility by clicking the
tab
Tips for Wi-Fi users
With a Wi-Fi connection, you can roam about 150 m
around the access point (depends on different
environment), so find a spot where you can work
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Easily and quickly receive and transmit files within
Access your email and surf the web with the same
Synchronize data between devices.
Take advantage of wireless printing — send files
without any interruption. Then see how much work you
can do, such as:
your local network — no problem for big files.
speed as that connected with network cables.
directly from your laptop PC to a wireless printer
over Wi-Fi connection.
Warning
Wi-Fi offers greater speed and range than Bluetooth,
but it drains your portable device batteries a lot faster
than Bluetooth does. In fact, if you use a Wi-Fi
connection regularly on your laptop PC, you'll
undoubtedly notice that you need to recharge more
often. If you need to conserve battery life — on a long
trip for example — turn off your Wi-Fi connection when
you don't actually need it.
Security
Because wireless networks rely on radio signals to
transmit data, they are not as secure as wire network.
Wireless networks are susceptible to viruses and
breaches like eavesdropping and need to be protected
in order to be secure.
There are many security measures to safeguard
wireless networks, protect the data, and keep
unauthorized users out. Hotspots, on the other hand,
are often free of standard security practices in an effort
to make it easy for anyone to connect. It may be found
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that some pay hotspots administered by service
providers offer have some level of security, however,
when using a hotspot, it’s always a good idea to be
proactive and to employ security measures of your
own.
Key terms
Wi-Fi: Short for “wireless fidelity,” a generic label that
refers to wireless networks or networking.
Hotspot: A specific geographic location in which an
access point provides public wireless broadband network
services to mobile visitors through a WLAN.
Throughput: The amount of data transmitted in a set
amount of time.
Bandwidth: the amount of data that can be carried from
one point to another in a given time period (usually a
second).
Chipset: A group of microchips that execute various
functions (like memory) to support the CPU.
Tx power: The transmit power measured at the terminal
without antenna be considered. Should the antenna gain
be considered ,the EIRP value is mentioned.
1T1R: the stream channel. 1T1R means one transmitter
and one receiver. 1T1R means two transmitters and two
receivers.
The single band : Normally means 802.11b/g/n , which
one works in 2.4 GHz
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For 802.11n
1T1R. Peak rate: 150Mbps, Peak
throughput: 90Mbps
Data Security
WEP 64/128 , WPA, WPA2, 802.1X
Power
Consumption
It depends on different adapter
models, there are two typical
values: 330mA and 110mA in full
Transmit (TX), 290mA and 95mA in
full Receive (RX) .
Indoor up to 100m, outdoor up to
150m (Standard transmission
distance, it is affected depending
on different environment).
Specifications (Typical):
Protocol and
Standards
InterfaceUSB1.1, USB2.0
Frequency
Band
Data Rate
IEEE 802.11b/g or 802.11n
2.412~2.462GHz (Depends on
different countries’ regulation)
For 802.11b/g:
Peak rate 54Mbps, Peak
throughput: 27Mbps.