:: danets    Home > Support > USB-Yagi Setup
 
your question will be answered promptly!
 
WiFi Application
 
 

USB-Yagi Antenna Instruction Manual

Print Version

Packing List
Quick Start
Scanning the WiFi Signal
USB Wireless LAN Utility

Advanced Setting Options (STATION Mode)
Advanced Setting Options (ACCESS POINT Mode]

Packing List

Installation of the USB-Yagi is straight forward. As soon as you open up the box, you will be able to find the following items:

A USB-Yagi High Power Plug & Play antenna with a tripod
A USB2.0 extender cable
A CD-ROM software drivers for XP/VISTA, Linux and MAC OS X
An installation guide

Top

Quick Start

Install the CD-ROM software drivers before you plug in the USB-Yagi antenna to your PC or laptop computer. This avoids the antenna being recognized by another existing WiFi software driver which might not be fully compatible with the antenna’s original software driver.

Insert the CD-ROM into the CD/DVD drive of your computer.

As soon as the AutoPlay window appears, double click “SETUP.exe” to install the software driver. If the AutoPlay window does not pop up, you could also go to the CD/DVD drive under “My Computer” and double click the SETUP icon.

Reboot your computer.

Plug in the USB-Yagi antenna to a spare USB port of your computer using the USB2.0 cable supplied in the kit.

Top

Scanning the WiFi Signal

At the bottom right hand corner of your computer screen, double click the “Five Bar Ramp” icon.

The REALTEK USB Wireless LAN Utility then pops up.



At the top bar which has taps of “General, Profile, Available Network,…, WiFi Protect Setup”, and so on, select “Available Network”.

You might see a number of SSID names (i.e. wireless router ID), and their corresponding channels and encryption methods. Choose the one with your own SSID and double click it to connect.



In case your wireless router is password protected, a new window pops up for filling in the encryption method and your network key (password).

 


Fill in the Profile Name and SSID of your wireless router.

If the wireless network is not encrypted, choose Open System and Click OK to finish.

Otherwise, choose the Network Authentication and Data encryption. Enter the same setting and key as your wireless router. Click OK to finish.

 

Disabled

WEP

TKIP

AES

Open System

X

X

 

 

Shared Key

 

X

 

 

WPA-PSK

 

 

X

 

WPA2-PSK

 

 

 

X

As soon as you are back to the “Available Network” screen, click “Add to Profile” button to save the SSID profile.

The icon on the lower right hand side is filled with green bars, showing the signal strength of the wireless connection.

Top

USB Wireless Lan Utility

First, open the REALTEK USB Wireless LAN Utility. There are four areas, shown as follows:

(A) Main Menu
The main menu has five submenus at the top left hand bar.

Refresh (R)
Update the contents of adapter list area.

Set Wizard (S)
The USB-Yagi has three operating modes:
1) Station (infrastructure) to pick up WiFi signal from a hotspot;
2) Station (Ad Hoc) to pick up WiFi signal from another computer which is also operating in an Ad Hoc mode;
3) Access Point to serve other WiFi enabled client computers.

This wizard walks you through the setup of each mode. Just follow the wizard until you finish.

Mode (M)
Manual setting of the operating mode to Station or Access Point.

View (V)
Toggles the Status Bar.

About (A)
Shows the version number reference at the bottom of the utility window.

(B) Adapter Listing Area (on the left hand column of the window)
All USB adapters connected to the computer are shown it this area. You could click on any one of the USB adapters to proceed with setup.

[C] Properties Area
Having selected the USB adapter in the Adapter Listing Area, you may proceed to configure its properties in the Properties Areas which consists of seven submenus, namely:

GENERAL
PROFILE
AVAILABLE NETWORK
ADVANCED
STATUS
STATISTICS
WIFI PROTECT SETUP

[D] Global Control Bar
It consists of the following options:

Show Tray Icon – when this box is checked, the management GUI will be minimized and stay on the lower right hand corner of your computer screen. If you uncheck the box and click CLOSE on the bar, the GUI will disappear from the lower right hand corner of the screen and you have to invoke the REALTEK Utility every time you set up the properties of the USB adapter.

Disable Adapter - Turn on and off the USB adapter completely.

Radio Off – Turn off the radio for saving power. When the radio box is checked, the links with other wireless network nodes are disconnected. You should be careful not to check the box when the USB adapter is operating in ACCESS POINT mode, otherwise all the WiFi PC clients shall be disconnected.

Status Bar – At the buttom of the Global Control Bar, it shows READY on the left if the utility is working normally. NUM and CAP are shown on the left hand side when these keys are invoked.

Top

Advanced Setting Options (STATION Mode]

Remeber that the USB adapter has two operating modes?

STATION MODE – pick up WiFi signal from a hotspot or an access point; and

ACCESD POINT MODE - to serve other WiFi enabled client computers.

Let's talk about the advanced settings of the STATION mode followed by the ACCESS POINT mode.

Select STATION under Mode [M] in the Main Menu top bar and let's walk through the submenus of the Properties Area from left to right.

GENERAL
PROFILE
AVAILABLE NETWORK
ADVANCED
STATUS
STATISTICS
WIFI PROTECT SETUP

GENERAL

This page shows the general information of the adapter.

Status – Either ASSOCIATED or NOT ASSOCIATED with an access point

Speed – N/A or current speed in Mbps (Mega-Bits-Per-Second)

Type – Current wireless LAN configuration type in either INFRASTRUCTURE or AD HOC

Encryption – N/A or current encryption method used

SSID – Shows the name of the wireless network

Signal Strength – An indication of how strong or weak the adapter is picking up the signal from the wireless network.

Link Quality – An indication of the Signal to Noise level.

Throughput Diagram – A chart showing the real time transmitting (TX) and overall traffic (Total)

Network Address group – Shows the MAC address of the USB adapter, whose current IP address, subnet mast and the IP gateway connected to the wireless network.

Renew IP button – Click to obtain a new set of IP address, subnet mast and IP gateway from the wireless network.

Back to Advanced Setting Optioons [STATION Mode]

PROFILE

It shows the current AVAILABLE PROFILE(s) or nothing. Buttons on the right hand column to:

Add – Add a new profile of access point (Infrastructure mode) or IBSS (Ad-Hoc mode)

Remove – Highlight an existing profile and remove

Edit – Highlight an existing profile and edite

Duplicate – Highlight an existing profile and make a copy of it

Set Default – Highlight an existing profile and set it as Default to establish a wireless connection. When the profile is set as Default, a little red circle appears near the profile name.

Back to Advanced Setting Optioons [STATION Mode]

AVAILABLE NETWORK

It shows all the wireless networks seen by the USB adapter.

Refresh – Rescan the available network(s)

Add to Profile – Highlight the SSID and click to save the profile for future use

Back to Advanced Setting Optioons [STATION Mode]

ADVANCED

Power Save – check None to disable power save; check MIN POWER Save to wake up more frequently to receive packets; check MAX POWER Save to wake up less frequently to receive packets. In other words, you use less power by checking the box of MAX POWER (save).

Wireless Mode – Choose either 802.11b or 802.11b/g. The former only allows 802.11b devices to operate whereas the latter allows both 802.11b and 802.11g devices to connect.

Channel Plan - Choose one of the followings to suit the standard to which your country complies.

FCC
IC
ESTI
Spain
France
MKK
MKK1
Israel
TELEC
Default

Preamble Mode – SHORT Preamble indicates that the network is using short preambles (defined in 802.11b High Rate/DSSS PHY, short preamble utilizes a 56 bit sync field in contrast to a 128 bit field used in long preamble mode).

If your packet error rate is high (over 10%), you are probably experiencing interference. A signal strength indicator may report the signal as "good" with interference. Signal quality may even acceptable, since interference may be intermittent. It is possible for interference to be so bad that you don't see high packet error rates because you don't even recognize incoming packets - this can be verified by comparing the number of packets sent by the AP to the number of packets received by wireless client.

Select LONG Preamble with good signal quality, SHORT Preamble for poor signal quality, and AUTO for optimal performance.

Fragment Threshold - Longer data fragment increases data throughput performance with good signal quality. The opposite is true to keep shorter data fragment in poor signal quality to maintain an optimal data throughput.

RTS Threshold – Data packet size which exceeds the Request To Send (RTS) Threshold will be sent out. Larger packet size favors data transmission whilst small pack size lowers the latency for real time traffic (voice and video).

WWM Parameters – WWM stands for Wireless Multi-Media. Check the QUALITY OF SERVICE (Qos) box if you mostly have voice and video real time Multi-Media traffic. Check the POWER SAVE Automatic Power Save Delivery (APSD) ENABLE box for optimal power performance.

Back to Advanced Setting Optioons [STATION Mode]

STATUS

A summary of the parameters being used by the USB adapter.

Back to Advanced Setting Optioons [STATION Mode]

STATISTICS

A summary of the Tx and Rx data throughput and error rate.

Back to Advanced Setting Optioons [STATION Mode]

WiFi PROTECT SETUP

Wi-Fi Protected Setup (WPS) is a standard for easy and secure establishment of a wireless home network, created by the Wi-Fi Alliance and officially launched on January 8, 2007.
The goal of the WPS protocol is to simplify the process of configuring security on wireless networks, and so it was first named 'Wi-Fi Simple Config'. The protocol is meant to allow home users who know little of wireless security and may be intimidated by the available security options to configure Wi-Fi Protected Access, which is supported by all Wi-Fi certified devices.
The standard achieves its goal by putting much emphasis into usability and security, and the concept is implemented through four usage models that enable a user to establish a home network.

So, to add a new device to the Network the user can have up to the following two choices:
PIN Method, in which a PIN (Personal Identification Number) has to be read from either a sticker on the new wireless client device (STA) or a display, if there is one, and entered at the "representant" of the Network, either the wireless access point (AP) or a Registrar of the Network, cf below the Protocol Architecture.
This is the mandatory baseline model, every Wi-Fi Protected Setup certified product must support it.
PBC Method, in which the user simply has to push a button, either an actual or virtual one, on both the AP (or a Registrar of the Network) and the new wireless client device (STA).
Support of this model is mandatory for APs and optional for STAs.
This page addresses the common scenario involving an Infrastructure Network. The support of ad hoc networks (IBSS) are not supported by WPS.

Back to Advanced Setting Optioons [STATION Mode]
Top

Advanced Setting Options (ACCESS POINT Mode]

Select ACCESS POINT under Mode [M] of the Main Menu top bar and wait until the switch over from STATION mode is completed.

There are only four submenus in the Properties Area from left to right, we have:

GENERAL
ADVANCED
STATISTICS
ICS

GENERAL

Click CONFIG to set up the properties of the ACCESS POINT. For illustration purpose, the Netwok Name (SSID) is assigned as USB-Yagi-AP. AUTO Channel is selected to avoid channel conflict with other AP nearby. You may set up the Channel manually if you know what others are used up in your vicinity. A WEP 128-bit security with the PASSPHASE is entered before clicking OK at the bottom of the window.

SSID - the wireless network name of this ACCESS POINT

BSSID - the MAC address of this ACCESS POINT

CONFIG - click to change the SSID, Channel and Security of the ACCESS POINT

Association Table - shows the MAC address(es) of the WiFi client adapter(s) currently connected to this ACCESS POINT

The same security key must be entered to each WiFi client computer in order to make a connection to SSID USB-Yagi-AP.

Back to Advanced Setting Optioons [ACCESS POINT Mode]

ADVANCED

Beacon Interval - The Beacon Interval specifies the duration between beacon packets. Access Points broadcast Beacons or Traffic Indication Messages (TIM) in order to synchronize wireless networks. The default setting of 100 should be ideal for most situations. In a "noisy" environment - one with much interference - decreasing the Beacon Interval may improve network performance. In very remote locations (with few wireless nodes) this value may be increased.

DTIM Period - This setting determines how often the Access Point's Beacon (TIM) contains a delivery traffic indication message (DTIM). The DTIM tells client devices in power-save mode that a packet is waiting for them. The default setting causes client devices using power-save mode to wake up. To conserve battery power in client devices using power-save mode, increase the Data Beacon Rate (DTIM) setting. However, setting the DTIM too high may cause a wireless client to lose its network connection.

The DTIM is a multiple of the Beacon (TIM). So if the DTIM was set to 3, a DTIM message would be sent with every third Beacon.

Premeable Mode - Short or Long. If all Clients and Access Points in your wireless network support Short Preamble, then enabling it can boost overall throughput. However, if any wireless device does not support Short Preamble, then it will not be able to communicate with your network. If you are not sure whether your radio supports the Short RF preamble, then make sure you disable this feature. Long Preamble is the default, as it is a required setting for Wi-Fi compatibility.


Back to Advanced Setting Optioons [ACCESS POINT Mode]

STATISTICS

Back to Advanced Setting Optioons [ACCESS POINT Mode]

ICS

The holy grail of Internet Connection Sharing (ICS) is to relay the Internet picked up from one Network Adapter and share it via another on the same host computer.

In order to share the Internet to the USB-Yagi now serving as an ACCESS POINT under SSID USB-Yagi-AP, ICS should first be enabled.

In this example, the "Intel(R) PRO/Wireless 3945ABG Network Connection" is picking up the Internet from the wireless router with SSID b3g.

Open its Wirelss Connection Properties as shown below and Click Sharing.

The Sharing window then pops up. Tick the box next to "Allow other network users to connect through this computer's Internet connection" and choose the USB-Yagi Adapter (Wireless Network Connection 18 in this example) to share. You may also tick the secound box below depending on the level of security in mind.

Click Settings.

Tick only the options you need. Click OK.

Now, go back to the ICS window. Highlight the "Intel(R) PRO/Wireless 3945ABG Network Connection" and Click APPLY. This initiates the sharing of Internet (from SSID b3g) via the USB-YAGI to other WiFi client computers.

The performance of Internet access was extremely good using ICS. Several video clips were being downloaded from YouTube and played smoothly as if they were connected directly to the Internet.

End of Manual.

Back to Advanced Setting Optioons [ACCESS POINT Mode]
Top

 
 
Shopping Guide
 
 
Related Info
 
 
The registered trademarks and logos belong to the respective companies.
 
:: Copyright ® 2013 danets DataCom Network Ltd.