background image

 

 

6.  What is BSS ID

 

A specific Ad hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must be 

configured with the same BSS ID. 

 

7.  What is WEP

 

WEP is Wired Equivalent Privacy, a data privacy mechanism based on a 40 bit shared key 

algorithm, as described in the IEEE 802 .11 standard. 

 

8.  What is TKIP? 

TKIP is a quick-fix method to quickly overcome the inherent weaknesses in WEP security, 

especially the reuse of encryption keys. TKIP is involved in the IEEE 802.11i WLAN security 

standard, and the specification might be officially released by early 2003. 

 

9. What 

is 

AES? 

AES (Advanced Encryption Standard), a chip-based security, has been developed to ensure the 

highest degree of security and authenticity for digital information, wherever and however 

communicated or stored, while making more efficient use of hardware and/or software than 

previous encryption standards. It is also included in IEEE 802.11i standard. Compare with AES, 

TKIP is a temporary protocol for replacing WEP security until manufacturers implement AES at 

the hardware level. 

 

10.  Can Wireless products support printer sharing

   

Wireless products perform the same function as LAN products. Therefore, Wireless products can 

work with Netware, Windows 2000, or other LAN operating systems to support printer or file 

sharing. 

 

11.  Would the information be intercepted while transmitting on air

 

WLAN features two-fold protection in security. On the hardware side, as with Direct Sequence 

Spread Spectrum technology, it has the inherent security feature of scrambling. On the software 

side, WLAN series offer the encryption function (WEP) to enhance security and Access Control. 

Users can set it up depending upon their needs. 

 

12.  What is DSSS

What is FHSS

And what are their differences

 

Frequency-hopping spread-spectrum (FHSS) uses a narrowband carrier that changes frequency 

in a pattern that is known to both transmitter and receiver. Properly synchronized, the net effect 

is to maintain a single logical channel. To an unintended receiver, FHSS appears to be 

short-duration impulse noise. Direct-sequence spread-spectrum (DSSS) generates a redundant 

bit pattern for each bit to be transmitted. This bit pattern is called a chip (or chipping code). The 

longer the chip is, the greater the probability that the original data can be recovered. Even if one 

or more bits in the chip are damaged during transmission, statistical techniques embedded in the 

radio can recover the original data without-the need for retransmission. To an unintended 

receiver, DSSS appears as low power wideband noise and is rejected (ignored) by most 

narrowband receivers. 

 

 

 

21

 

Содержание HWC54D

Страница 1: ......

Страница 2: ...to take adequate measures HAWKING LIMITED WARRANTY Hawking Technology guarantees that every HWC54D Hi Gain Wireless G CardBus Card is free from physical defects in material and workmanship under normal use for two 2 years from the date of purchase If the product proves defective during this two year warranty period call Hawking Customer Service in order to obtain a Return Authorization number Warr...

Страница 3: ...nts 2 2 INSTALLATION PROCEDURE 3 3 CONFIGURATION UTILITY 6 3 1 Site Survey 6 3 2 Profile 7 3 2 1 Configure the Profile 8 3 2 2 Enable WPA in Windows XP 12 3 3 Link Status Obtaining an optimal Wireless Connection 14 3 4 Statistics 17 3 5 Advance 17 3 6 About 19 4 TROUBLESHOOTING 20 ...

Страница 4: ...rize before accessing to APs or AP Routers and the data transmitted in the network is encrypted decrypted by a dynamically changed secret key This card also has built in an AES engine which ensure the highest degree of security and authenticity for digital information and it is the most advanced solution defined by IEEE 802 11i for security in wireless networks The power consumption of the card is...

Страница 5: ... 16dBm 18dBm Before Antenna Power consumption Tx 350mA Rx 250mA Receive Sensitivity 54Mbps OFDM 10 PER 70dBm 11Mbps CCK 8 PER 86dBm 1Mbps BPSK 8 PER 92dBm Dimension 8 H x 118 W x 54 D mm Temperature 32 131 F 0 55 C Humidity Max 95 NonCondensing Certification FCC CE 1 3 Package Contents Before you begin the installation please check the items of your package The package should include the following...

Страница 6: ...erated under Windows XP Procedures are similar for Windows 98SE Me 2000 Note3 If you have installed the Wireless adapter driver utility before please uninstall the old version first A Insert the Installation CD into your CD ROM Drive The Utility splash screen will appear Click Driver Utility Setup to begin setup initialization B Setup will initialize automatically C Setup will ask prompt you to ac...

Страница 7: ... into the USB port of your desktop or laptop computer E The system will automatically detect the Mini USB Adapter and copy the necessary driver files over F Windows Hardware setup will present a list of drivers for installing the HWU54DM Select Hawking HWU54DM Hi Gain Wireless G USB Adapter Click Next to continue the hardware installation 4 ...

Страница 8: ...G Windows will display the Windows Hardware Installation warning screen Click Continue Anyway to proceed with the installation H Click Finish to complete hardware installation of the HWU54DM 5 ...

Страница 9: ...n the Configuration Utility tool z Use Config as Configuration Utility or Use Zero Configuration Utility as Configuration Utility Select which of the two configuration modes you would like to use z Exit Select Exit to close the Configuration Utility tool 3 1 Site Survey When you open the Configuration Utility the system will scan all wireless channels to find all access points stations within the ...

Страница 10: ...ork Rescan Button Click Rescan button to collect the information of all the wireless networks nearby Connect Button Click Connect to connect to the selected network Add to Profile Button Add the selected network to Profiles list 3 2 Profile The Profiles List is for you to manage the networks you connect to frequently You are able to Add Delete Edit Activate a profile Parameter Description Profiles...

Страница 11: ...the same SSID can interconnect to the card If you want to add one of the networks nearby to the profile list pull down the menu all the networks nearby will be listed and you can add one of them to the profile list Power Saving Mode The power saving function is only available when the network type is in Infrastructure CAM Constantly Awake Mode The card will always set in active mode Power Saving M...

Страница 12: ...card will auto switch the preamble mode depending on the wireless stations which the card is connecting to RTS Threshold Minimum packet size required for an RTS Request To Send For packets smaller than this threshold an RTS is not sent and the packet is transmitted directly to the wireless network Select a setting within a range of 0 to 2312 bytes Minor change is recommended Fragment Threshold The...

Страница 13: ...ther WPA PSK It is a special mode designed for home and small business users who do not have access to network authentication servers In this mode known as Pre Shared Key the user manually enters the starting password in their access point or gateway as well as in each wireless stations in the network WPA takes over automatically from that point keeping unauthorized users that don t have the match...

Страница 14: ...ame encryption method to ensure the communication WPA Pre Shared Key The WPA PSK key can be from eight to 64 characters and can be letters or numbers This same key must be used on all of the wireless stations in the network WEP Key Key1 Key4 The WEP keys are used to encrypt data transmitted in the wireless network There are two types of key length 64 bit and 128 bit Select the default encryption k...

Страница 15: ...y A pre shared key is a password that every wireless station must use to access the network Typically this mode will be used in a home environment To enable the WPA function in Windows XP the following software systems are required 1 Windows XP Service Pack 1 with Windows XP Support Patch for Wi Fi Protected Access program in addition 2 Configure the card using Wireless built in utility Wireless Z...

Страница 16: ...ius Server WPA enabled access point and a WPA enabled client Once WPA is enabled all clients and access points on the network must be WPA enabled in order to access the network WPA PSK It is a special mode designed for home and small business users who do not have access to network authentication servers In this mode known as Pre Shared Key the user manually enters the starting password in their a...

Страница 17: ...tal information and it is the most advanced solution defined by IEEE 802 11i for the security in the wireless network Note All devices in the network should use the same encryption method to ensure the communication 3 3 Link Status From the Link Status option you can view all the information of the network you are connecting to You can use this tool in while at the same time repositioning the Hi G...

Страница 18: ...y This bar indicates the quality of the link The higher the percentage the better the quality dBm If you want to know the signal strength in the unit of dBm select this check box Signal Strength This bar shows the signal strength level The higher percentage shown in the bar the more radio signal been received by the card This indicator helps to find the proper position of the wireless device for q...

Страница 19: ...etermine where the location of your Wireless Access Point is within your network 2 Position the directional antenna towards the location of the Access Point 3 While viewing your Link Status utility rotate the antenna clockwise and counter clockwise slowly to figure out which position gives you the highest Link Quality and Signal Strength Once you have determined which position gives you the best s...

Страница 20: ...ailable statistic information with its Tx counts Tx success Tx error RTS Success and RTS Failed and its Rx counts Rx success Rx error You may reset the counters by clicking Reset Counter 3 5 Advanced This option enables you to configure more advanced settings for example wireless mode protection mode and etc 17 ...

Страница 21: ...802 11b and 802 11g wireless stations in the network it is recommended that you enable the protection mechanism This mechanism can decrease the rate of data collisions between 802 11b and 802 11g wireless stations When the protection mode is enabled the throughput of the card will be a little lower due to more complex data packets that must be transmitted Auto Based on the status of the network an...

Страница 22: ...mode is 802 11 B only the maximum data rate is 11Mbps 11b so that there are only Auto 1 2 5 5 11Mbps options you can select Turn Off RF Button If you want to turn off the radio of the card temporarily click this button To turn on the radio click this button again 3 6 About By choosing this option you can click the hyperlink to connect to the website for the information of the wireless chipset vend...

Страница 23: ...des the modulation schemes found in 802 11b including CCK for 11 and 5 5 Mbps and Barker code modulation for 2 and 1 Mbps B A protection mechanism called RTS CTS that governs how 802 11g devices and 802 11b devices interoperate 2 What is the IEEE 802 11b standard The IEEE 802 11b Wireless LAN standard subcommittee which formulates the standard for the industry The objective is to enable wireless L...

Страница 24: ...th Netware Windows 2000 or other LAN operating systems to support printer or file sharing 11 Would the information be intercepted while transmitting on air WLAN features two fold protection in security On the hardware side as with Direct Sequence Spread Spectrum technology it has the inherent security feature of scrambling On the software side WLAN series offer the encryption function WEP to enhan...

Страница 25: ...ses a group of products and technologies used to help solve distance issues accompanied with WiFi products A unit of measurement on antenna strength and power is dBi The higher the dBi or gain level of an antenna the more powerful it is 15 What is the difference between directional and omni directional antennas Directional and omni directional antennas determine the wireless output pattern of ante...

Отзывы: