t*********u
发帖数: 26311 | 1 全球无线通讯及数字多媒体IC设计领导厂商联发科技
股份有限公司 (MediaTek Inc.) ，今天宣布推出面向802.11ac高端路由器的全新双
核网络芯片MT7621。MT7621集成了联发科技全球领先的网络及存储硬件加速器，支持
HNAT、HQoS、SAMBA 及VPN等功能，可满足高端路由器市场、802.11ac千兆高速网络
以及高清视频下载备份的需求。
MT7621内置强大的MIPS? 1004KEc?双核CPU（工作频率均为880MHz），集成了5端口
10/100/1000 Mbps 工业级以太网交换机及一个rGMII接口，支持USB 3.0、 USB 2.0
、SD-XC、NAND 和eMMC等多种存储接口规格，并可通过第三个PCIe接口转接出两个SATA
3.0接口。 802.11ac网卡及802.11n网卡通过高速PCIe接口的连接，成为802.11ac
双频路由器，以Gbps级别的局域网带宽，传输高画质影音及大量数据下载备份。
此外，MT7621还集成了全球领先的 2Gbps IPv4/6 网络地址转换技术(NAT)、QoS功能
（Qualit... 阅读全帖 |
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w*******y
发帖数: 60932 | 2 Cisco Valet M10 Wireless BroadBand Router 54Mbps 802.11N M10-RM
This item is Cisco Certified Refurbished
Cisco Valet M10 300Mbps Wireless N Router with Parental controls, Easy Setup
USB Key Included for PC and MAC, Cisco Recertified
Manufacturer Part # M10
Features/Specifications:
General Features:
Broadband router
Wireless Access Point
Four port 10/100 Ethernet switch
Complies with IEEE 802.11n as well as IEEE 802.11b/g
2.4 GHz operating frequency
Supports WEP & WPA2 wir... 阅读全帖 |
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w*******y
发帖数: 60932 | 3 Rosewill RNX-N180UB (1T2R) IEEE 802.11b/g/n USB 2.0 Wireless Adapter with
Hardware WPS Button
Up to 300Mbps Download Data Rates
Support 64/128-bit WEP (Hex & ASCII)
WPA/WPA2
WPA (TKIP with IEEE 802.1x)/WPA2(AES with IEEE 802.1x)
$24.99
-$13.00 Instant
$11.99
-$3.60 30% off w/ promo code [COUPON=32756]RWYEAREND[/COUPON], ends 1/6/12
$8.39
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166049
Brand: Rosewill
Model: RNX-N180UBSpec
Standards:IEEE 802.11b/g/n
Wireless Data Rates: Up to 30... 阅读全帖 |
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w*******y
发帖数: 60932 | 5 The TRENDnet TEW-647GA Wireless N gaming adapter is back on sale at Newegg.
While it is not as low as last time, this is still a good deal for those
looking to upgrade their older ethernet enabled hardware to Wireless N.
Linky:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833156258
Promo Code: EMCKHKG62
TRENDnet TEW-647GA IEEE 802.11b/g, IEEE 802.11n Draft 2.0 Ethernet Port
Wireless Gaming Adapter Up to 300Mbps Wireless Data Rates 64/128-bit WEP (
Hex & ASCII), WPA-PSK/WPA2-PSK (AES/TKI... 阅读全帖 |
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w*******y
发帖数: 60932 | 9 mwave has ASUS RT-N15 - SuperSpeed N Gigabit Wireless Router WRLS ROUTER 802
.11N 2.4GHZ UP TO 300MBPS 1 x 10/100/1000Base-T WAN, 4 x 10/100/1000Base-T
LAN - IEEE 802.11n (draft) - 300Mbps:
http://www.mwave.com/mwave/skusearch_v3.asp?scriteria=AA97535&pagetitle=ASUS RT-N15 - SuperSpeed N Gigabit Wireless Router WRLS
for $50 - $20 Rebate = $30 AR + FS
Description:
ASUS RT-N15 - SuperSpeed N Gigabit Wireless Router WRLS ROUTER 802.11N 2.
4GHZ UP TO 300MBPS 1 x 10/100/1000Base-TX WAN, 4 x 10/100/... 阅读全帖 |
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w*******y
发帖数: 60932 | 10 It seems like Geeks.com has this great router on sale today. The price is 29
.99 plus shipping which was just under $7 for me. About the same price as
the e2000 deal but no taxes in NY and you can get cash back from a few
places. 90 Day Warranty.
Link:
http://www.geeks.com/one-day-deal/
Features/Specifications:
* Linksys WRT320N Dual-Band Wireless-N Gigabit Router
* General Features:
* Internet sharing router
* 4-port Gigabit switch
* Dual-Band, works in the 2.4 or 5 GHz radi... 阅读全帖 |
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w*******y
发帖数: 60932 | 11 Compatibility- Any PC or Laptop with a USB port, 733MHz CPU, and 64MB Memory
- Any brand 802.11g or 802.11n router using 2.4ghz wavelength
- Windows 2000, 2003, XP Home/Pro/64-Bit, Vista 32-Bit/64-Bit, Windows 7
-
NOT COMPATIBLE with Xbox 360, PS3, Blu-Ray Players, Roku Boxes, or any
device that does not run an Operating System. Also will not work with Dual
Band Routers that only broadcast N speeds on 5ghz wavelength - it is also
not compatible with any Apple Mac
SecurityThis adapter provides st... 阅读全帖 |
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w*******y
发帖数: 60932 | 13 Link:
http://www.mwave.com/mwave/SKUSearch.asp?px=DS&scriteria=AA9895 PL-150N Wireless 802.11b/g/n USB 2.0 22.5dBm High-Power Adapter Built-in Antenna and Heatsink Improving 2X Signal Reception and Speed
Description:
POWERLINK PL-150N N150 Wireless 802.11b/g/n USB 2.0 22.5dBm High-Power
Adapter Comply with 802.11N, 802.11g and 802.11b Standards Built-in Antenna
and Heatsink Improving 2X Signal Reception and Speed
Features:
Double Performance
Double Distance
Supports WMM function
Supports NDS and... 阅读全帖 |
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w*******y
发帖数: 60932 | 14 TP-LINK TL-WN951N wireless-n 802.11bgn 300mbps wireless pci adapter $14.99
shipped
Link:
http://www.mwave.com/mwave/SKUSearch.asp?px=DS&scriteria=BA2548
Description:
TL-WN951N Wireless N PCI Adapter complies with IEEE 802.11n (Draft 2.0),
IEEE 802.11g, and IEEE 802.11b standards. Wireless transmission rates can
reach up to 300Mbps. The PCI Card adopts MIMO as well as SST technologies,
has three external detachable omni directional antennas providing even
better wireless performance, transmission... 阅读全帖 |
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x******h
发帖数: 13678 | 15 核心提示：印尼海军参谋长阿古斯·苏哈托诺星期一透露，印尼海军将继续从中国采购
C-802导弹，该款导弹不久前进行的性能测试表现非常出色。苏哈托诺还说，印尼海军
也正与中国谈判，希望能够外形更为细长的C-705导弹。
环球时报-环球网12月22日报道 据印度尼西亚Antara通讯社21日报道，印尼海军参谋长
阿古斯-苏哈托诺星期一透露，印尼海军多艘战舰将装备中国产导弹。“我们将继续从
中国采购C-802导弹，该款导弹不久前进行的性能测试表现非常出色。”苏哈托诺还补
充说，印尼海军也正与中国谈判，希望能够外形更为细长的C-705导弹。据苏哈托诺透
露，这两款导弹将安装在印尼海军的快速巡逻艇和范-斯派克（VAN- SPEIJK）级战舰上。
中国自制并服役的第一种巡航导弹就是以海军现役的C-802型反舰导弹为基础改良而来
的舰载对地巡航导弹，发展过程同美国改装“鱼叉”为对地导弹类似。C-802 巡航导弹
的射程大约为300千米，配备惯性加GPS制导、终端红外线或电视辅助的复合导引方式，
导弹尺寸比原型略长，采用了新型火箭助推剂。不过该型导弹的射程和杀伤力都略显不
足，因此部署的数目应该不会很多 |
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k****a
发帖数: 4944 | 16 以前用802.11g路由器，手机可以正常搜索到信号并连接WI-FI上网。
现在新换了个802.11n的LINKSYS WRT120N路由器，但是手机却搜索不到它的信号。
而别的iphone和电脑都可以发现信号并连接上。
是不是我这手机不支持这802.11n路由器的缘故？
还是802.11n路由器的加密问题的？
可以更改路由器的设定，让它支持吗？
还有什么好的方法？。。。
谢谢！ |
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k****a
发帖数: 4944 | 17 以前用802.11g路由器，手机可以正常连接WI-FI上网。
现在新换了个802.11n的LINKSYS路由器，但是手机却搜索不到它的信号。
而别的iphone和电脑都可以发现信号并连接上。
是不是手机的网卡是802.11b的缘故？
还是802.11n路由器的加密问题的？
有什么好的方法？。。。
谢谢！ |
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g********d
发帖数: 19244 | 18 你可以看看路由器是否开启了向下兼容的模式
他应该可以工作在兼容 n和g 这个状态 或者只有n
不过混合模式下 它其实就是个g路由器
以前用802.11g路由器，手机可以正常连接WI-FI上网。
现在新换了个802.11n的LINKSYS路由器，但是手机却搜索不到它的信号。
而别的iphone和电脑都可以发现信号并连接上。
是不是手机的网卡是802.11b的缘故？
还是802.11n路由器的加密问题的？
有什么好的方法？。。。
谢谢！ |
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m***m
发帖数: 94 | 19 查电脑无线网卡，属性里写着 802.11n
如果我买一个“IEEE 802.3-LAN, IEEE 802.3U-LAN”的router能使用吗？
谢谢 |
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J*******3
发帖数: 1651 | 20 国际标准会议召开 中国投票反对802.11i挺WAPI
http://tech.tom.com 2006年03月07日 09时:43分 来源:新华网
曾在中美贸易谈判中成为牺牲品的国产无线局域网安全技术WAPI再度得到中国政府的坚定
支持。国家标准化管理委员会官员透露，在本月7日即将结束的国际标准投票中，中国毫
无疑问将对WAPI投赞成票，对竞争者英特尔主导开发的IEEE 802.11i投反对票。
“中国政府各部门一致同意要大力支持中国企业自主研发的WAPI标准，”这位官员对新华
社记者说。
WAPI是针对无线局域网现行国际标准802.11的安全漏洞所研发的安全模块。这项主要由中
国一家民营企业西电捷通开发的技术与英特尔的11i都已向国际标准化组织申请成为国际
标准。
“中国政府对WAPI十分重视，特别成立了部级联席会，各部委的意见是统一的，”国家标
准委官员说。
资深移动通信专家李进良说，虽然同样是针对无线局域网的安全技术，但是延伸自802.11
的11i仍然包含了原有的技术缺陷，而且还带来了新的安全漏洞，而中国自主研发的WAPI
安全性能已得到专家认可Y燪Ktt褶━韧╫紕?{V姹 |
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L******t
发帖数: 1985 | 21 It's called port-based authentication because 802.1x is originally designed
for wireless access in which a port is a user.
But technically speaking mac-based 802.1x is no difficultier than port-based
802.1x at all. I'm not sure if Cisco's Catalyst switches don't support mac-
based. Even that's the case, I believe the reason being even Catalyst
desktop switches are designed for one port per user. So I guess it's easier
to find mac-based feature on lower-end vendors.
Just googled "mac based 802.1x |
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m***m
发帖数: 94 | 22 查电脑无线网卡，属性里写着 802.11n
如果我买一个“IEEE 802.3-LAN, IEEE 802.3U-LAN”的router能使用吗？
谢谢 |
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w*******y
发帖数: 60932 | 24 mwave has Premiertek PT-2223N Wireless 802.11b/g/n USB 2.0 High-Power
Adapter Comply with 802.11N, 802.11g and 802.11b Standards 22dBm Built-in
Antenna and Heatsink Improving 2X Signal Reception and Speed:
http://www.mwave.com/mwave/skusearch_v3.asp?scriteria=AA97927
for $7.99 + FS for mclub members (free to join)
Technical Information:
Product Name 11G 2.4GHZ USB Adapter 22DBM with High Gain 5DBI Dipole
Antenna
Host Interface USB
Product Type Wi-Fi Adapter
Dimensions 0.51" Hei |
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w*******y
发帖数: 60932 | 25 Hornettek HT-H5DN Wireless 300Mbps 802.11n USB 2.0 High-Gain Adapter Comply
with 802.11N, 802.11g and 802.11b Standards 25dBm w/High Gain 5dBi Dipole
Antenna Improving 2X Signal Reception and Speed
Link [mwave.com]
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w*******y
发帖数: 60932 | 26 mwave has ZONET ZEW2545 Wireless N USB Pen Adapter USB - IEEE 802.11n (draft
):
http://www.mwave.com/mwave/skusearch_v3.asp?scriteria=AA97749&p ZEW2545 Wireless N USB Pen Adapter USB - IEEE 802
for $9.99 - $5 rebate = $4.99 + FS for mclub members (free to join)
Technical Information:
Technical Information
Wi-Fi Standard IEEE 802.11n (draft)
ISM Band Yes
ISM Minimum Frequency 2.41 GHz
ISM Maximum Frequency 2.48 GHz
Wireless Transmission Speed 150 Mbps
Wireless Security 64/128-bit WE... 阅读全帖 |
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w*******y
发帖数: 60932 | 27 Link:
http://1saleaday.com/
here is the Amazon link (it sells for $29.99) For review references
Link:
http://www.amazon.com/gp/product/B000QYGNKQ
The Alfa AWUS036H is the latest version of the most powerful card available.
This has a stunning 1000mW output power. So if you are looking for a device
to connect to an outdoor 2.4 GHz antenna, such as on a boat or an RV, this
is a perfect solution. It outperforms wireless cards that are built in to
newer laptops. Adding this to your laptop or desktop... 阅读全帖 |
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g******a
发帖数: 4774 | 29 【 以下文字转载自 shopping 讨论区 】
发信人: gogotora (寅), 信区: shopping
标 题: 802.11g Wireless Router from Verizon - $9.99 !
发信站: BBS 未名空间站 (Mon Jan 25 14:40:40 2010, 美东)
VersaLink 7501 802.11g Wireless Router from Verizon - $9.99 + tax with free
overnight shipping.
You DO NOT have to be a Verizon customer to order it, but It can only be
used on the Verizon network.
Today only at Verizon Wireless, you can order the VersaLink 7501 Voice over
WLAN 802.11g Wireless Router for $9.99 with free shipping via overnigh |
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N*****k
发帖数: 72 | 30 I do not remember very clearly.
802.11e is composed of several parts
one of them is mentioned here, prioritize the traffic (Voice/Video/Average/
Background)
another is that AP plays more role in MAC, adopts some polling scheme (improve
from PCF).
There are also more I do not remember.
However, like the 802.11 security, industries has their own proposal WMM (part
of 802.11e).
channel |
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N*****k
发帖数: 72 | 31 "如果AP claim 支持100MBPS， 多个WIFI client 同时使用时候应该是共享这100Mbps,
correct?"
A: Yes
"无线信道OFDM的带宽是共享的" got nothing to do with "如果AP claim 支持
100MBPS， 多个WIFI client 同时使用时候应该是共享这100Mbps, correct?"
OFDM is adopted in PHY layer of IEEE 802.11a/g/n, just like DSSS/CCK in PHY
of 802.11b.
IEEE 802.11 supports multi-user in MAC layer by using CSMA/CA, like the CSMA
/CD in Ethernet.
If you google it, you will find CSMA/CA does not support simultanous multi-
user communication. Only one user can transmit at one tim |
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l********l
发帖数: 9452 | 32
$
stream
netgear 3500掉线是正常的，所有的2.4g 802.11n只要开300m都掉。当年802.11 draft
的时候大佬们为了吸引眼球给2.4g加了 40mhz 300m，前提就是你一个人独占整个2.4g
，但是现实中不可能实现。只要有别的人用2.4g上跟你overlap的channel，你就掉线。
估计你住的周围wifi不少，就容易掉。linksys 160nt也是2.4g 802.11n，开300m一样
掉。
我说ea3500 20刀是因为it的routing performance也就5年前的水平（看我贴的chart，
it最后一名，成绩惨不忍睹），其实说20刀都抬举it了。 |
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c*****e
发帖数: 1538 | 33 ac68u+802.11 ac 的网卡，为什么windouws上显示radio type 却是802.11n? |
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z*****n
发帖数: 7639 | 34 There are two versions for AP:
802.11 DCF and 802.11PCF
in the original mode AP acts exactly the same as other
nodes(mobile stations), in this case AP is potentially
a bottleneck of the system.
802.11PCF is aimed to solve this problem. In PCF, AP
usually waits a less interframe gap than other nodes,
thus giving AP an advantage to catch the channel.
the |
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w********u
发帖数: 71 | 35 You can freely download 802.11 standards from IEEE website.
哪里可以免费得到IEEE 802.11 的协议标准,或者是学校的libray会有吗?
哪里可以得到802.11 MAC reference software (code)?
谢谢! |
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z*****n
发帖数: 7639 | 36 1. 802.11 is contention-based MAC, user node cannot set his own
uplink/downlink capacity at will.
2. Usually, if two user nodes are both under the coverage of
AP with good signal quality, they share the total bandwidth
fairly, because CSMA/CA works well here. However, if one user
node is too far than another, 802.11 will automatically
lower its transmission bit rate (using different modulation
method and different redundancy ratio) for the farer node.
Please read 802.11 spec. |
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w*******y
发帖数: 60932 | 38 LITE-ON Black SATA Model iHAS124-04 CD/DVD Burners (RW Drives) - OEM
+
Rosewill RNX-N400LX IEEE 802.11b/g, IEEE 802.11n Draft 2.0 Network -
Wireless Router - Retail
Add both the product in cart
Apply coupon "CVPRSJ122"
Will be 20.98 Shipped.
DVD Burner is 24X
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w*******y
发帖数: 60932 | 39 Newegg
Rosewill RNX-GX4 IEEE 802.3/3u, IEEE 802.11b/g Wireless-G Broadband Router
/ Open Source & DD-WRT Firmware Support
$24.99
Free shipping
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w*******y
发帖数: 60932 | 40 TP-Link TL-WN721N Wireless N USB Adapter 2.4GHz 802.11g/b/n RTL Ompatible
with 802.11g/b Support PSP X-Link $8.50 + FS@mwave
Link:
http://www.mwave.com/mwave/SKUSearch_v3.asp?px=DS&scriteria=AA97870
Overview
Technical Specs
Reviews (3)
Warranty
Description:
TP-LINK TL-WN721N is designed to provide a high-speed and unrivaled wireless
performance for your computer. With a faster wireless connection, you can
get a better Internet experience, such as downloading, gaming, video
streaming and so on. |
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