m*****n 发帖数: 5611 | 1 买4个E2000
2.4ghz 802.11g 20MHZ
2.4ghz 802.11n 20MHZ
5ghz 11n 40MHZ
5ghz 11n 40MHZ
无敌了 |
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N*****k 发帖数: 72 | 2 See comments below:
First, you need to know if you USB 11n client is 1x1 or 2x2. Linksys WRT160N
is 2x2, although different HW versions uses different WiFi chipsets (one is
from BRCM, the other is from Ralink). Also, you need to check if the
bandwidth is 20MHz or 40MHz, although 40MHz barely works in 2.4GHz,
especially when you have neighboring WiFi devices.
I guess what you meant here is 12Mbytes/sec, not 12Mbits/sec. 12MBytes is
around 100Mbits, which is very normal since WRT160N is 10/100Mbp |
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N*****k 发帖数: 72 | 3 If you use 2.4GHz/2x2/40MHz, the ideal wireless TPT should above 120Mbps, if
no other interference around, and Ethernet is not a bottleneck (10/100).
I really do not suggest use 40MHz bandwidth in 2.4GHz. |
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p**i 发帖数: 688 | 4 看它的wireless数据, 似乎5GHz band 40MHz BW的throughput不比2.4GHz band 40MHz
BW高啊 |
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y*******n 发帖数: 10103 | 5 貌似得40mhz才能到300mbps。
20mhz也就是144mbps了
不过40mhz模式下,传输距离对带宽的影响很大,如果信号不是很好,速度和稳定性不
如20mhz。 |
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l**********e 发帖数: 3149 | 6 我试了一下,dd-wrt肯定也是支持的,但我实在tomato下设置的,把Channel Width设
成40MHz(这就占了两个独立通道)然后去控制面板,search“adapter”,选择view
network connection,之后右键选择无线适配器,查看属性,“networking”标签下点
"configure..." ,之后选“advanced”标签,把“802.11n channel width for band
2.4”的value设成auto,就可以了。
其实就是计算机side的channel width和router side的要match,都选择40MHz。在2.4G
这个频段也可以设置channel bonding,只是这个频段的独立通道数只有3个,5G这个频
段下面有24个,所以他们推荐在5G频段下使用channel bonding,但我的路由器没有这
个选项。(可能这个频段要收费,2.4G是免费的?)
可以参考intel的解释:http://www.intel.com/support/wireless/sb/cs-025343.htm |
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k*****y 发帖数: 744 | 7 正在用
Mode: n only
Channel: 1
Channel Width: 40MHz
Extension Channel: lower
但是用inSSIDer看,还是只有20MHz的宽度。
Channel 6和11都有个强度差不多的邻居信号,还有10个左右其它弱一点信号,是因为
这个搞不到40MHz吗?
察看连接状态,Tx 150Mbps,Rx只有65Mbps。请问这个怎么搞才能到130/150Mbps?
我把机器的wireless adapter设成AP,用另一台laptop连能达到150M。所以应该还是DD
-WRT的问题吧? |
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a*o 发帖数: 19981 | 8 你router设成40mhz带宽没?你网卡支持40mhz不?任何一项不是的话你就在用N150而已。 |
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s****c 发帖数: 11300 | 9 我晕 那个网速是自动匹配的 负载低的时候会降下来 降低功率
你传输一段比较大的文件试试看吧
另外看一下你周围是不是wifi很拥挤?如果很拥挤的话不建议用40Mhz
但是只有在40Mhz下才有300Mbps |
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t****t 发帖数: 6806 | 10 1x1的天线20MHz最多就是65Mbps, 如果40MHz就是150. 看你这个可怜的数字多半不支持
40MHz模式, 所以4MB/s是个挺公平的数字. |
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b********E 发帖数: 121 | 11 你得意思是不是, 比如说我现在RBW是10K,我分析了我路由所在的CH9(路由设置的
Channel width 是 40Mhz). 所以,我测试的时候Span也设置成40Mhz.
根据Waterfall, 发现能量分布在整个频带上, 我们要评估Wifi的发射功率,需要把
整个频带上的能量加起来考虑? 这样才是他的真实发射功率?
RBW太小的话,我们只能说某个频率上的dbm是多少, 这个频率不能代表wifi在整个工
作频段上的功率? |
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w*******y 发帖数: 60932 | 12 Link:
http://www.newegg.com/Product/Product.aspx?Item=N82E16833124333
use promo code EMCZYYW44
price checkout after code $69.99
Model
Brand Linksys
Model WRT400N Spec
Standards IEEE 802.3/3u, IEEE 802.11a/b/g, IEEE802.11n Draft
Security WEP, WPA, WPA2
WPA/WPA2 WPA2
Ports 1 x 10/100M WAN; 4 x 10/100M LAN
LEDs Power, Internet, Wireless, Wi-Fi Protected Setup, Ethernet (1-4)
Buttons Reset, Wi-Fi Protected Setup
Modulation 802.11b: CCK, QPSK, BPSK
802.11g: OFDM
802.11a: OFDM
Wireless-N: BPSK, QPSK,... 阅读全帖 |
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c****y 发帖数: 3592 | 14 抱歉,这个版高手比较多,问个问题
小弟国内带回来一个手机是移动4G专属,不过参数上写着
4G网络移动TD-LTE
3G网络移动3G(TD-SCDMA),联通2G/移动2G(GSM)
支持频段2G:GSM 850/900/1800/1900
3G:TD-SCDMA 1880/2010
4G: TD-LTE B38/39/40MHz
我把AT&T的卡插上去不能用,我想没有4G我理解,为啥2G都收不到?不是手机支持GSM
的么 |
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N*******3 发帖数: 2589 | 15
20/40MHz 是他的无线频率,不是速度。速度是up to 300 Mbps |
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T********9 发帖数: 279 | 16 ATT U-verse, 40MHz, $48 |
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t*******f 发帖数: 2634 | 18 For people who need fast network storage/streaming,
3500L is highly recommended (just tested):
With dd-wrt, wired-to-wired gigabit NICs, 9 feet CAT5e
cables, through put is 887Mbps!
For wireless, 2.4GHz, with 20MHz single channel, 48Mbps
with 40MHz dual channel, 68Mbps.
The wireless results depends on lots of things, including
distance and neighboring router interferences.
I did not test its USB/NAS/SAMBA/NFS storage performances. |
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t****g 发帖数: 35582 | 19 你可以买个垃圾router,插在N的主router上,专门用来发射G信号。
主router如果N/G mixed,N似乎上不到40Mhz带宽。 |
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g******z 发帖数: 5809 | 21 我的是92年的Arima造的80386 40MHz, 4MB内存,156MB硬盘,800x600或者更小的灰度屏,3.5''软盘驱动器
装DOS 6.22和Windows 3.2开个Word6.0用四十秒。 |
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w***s 发帖数: 321 | 23 差不多吧,我用iperf测试结果是80Mbps,
tcp包,40Mhz频宽 |
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N*****k 发帖数: 72 | 24 Then it is OK.
The peak TPT in 5GHz/40MHz/2x2 is around 180Mbps (TCP) |
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l*******m 发帖数: 1096 | 25 802.11n的参数很多。主要有channel bandwidthm (20 or 40 MHz), stream number(
1x, 2x, 3x, 4x), and guard interval(400 or 800 ns)
最高速率600Mbps是针对于40MHz,4x, 和400ns的系统 |
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p**i 发帖数: 688 | 26 2.4G的band现在太拥挤了, 我在家平时平均能收到10个SSID, 加上还有微波炉和无绳电
话,
干扰严重, 我的楼上的laptop经常signal只有30-35%, N mode下throughput经常只有
50Mbits/s左右(although windows shows 300Mbps data rate)
2.4G的频带也容不下几个40MHz的channel, 估计5G会好很多 |
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r***q 发帖数: 229 | 27 HD文件都放在NAS上,与D-Link DIR-655 router的Ethernet口相连, router设置为
wireless-N only @ 40Mhz B/W, WAP2加密; PC 用的是Linksys WPC600N Dual-Band N
PCI adapter, 与router大约5米远,有一墙相隔。在PC上放720p 的电影(4.4GB)有
迟滞,但勉强可以接受; 放1080p(11GB)的就完全不行了,一顿一顿的。各位遇到过相
似的情况吗?是因为router不够还是设置有问题? |
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a9 发帖数: 21638 | 28 对channel width。选那个dynamic 20/40mhz |
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a9 发帖数: 21638 | 29 5g本来是防干扰的吧,要是没有干扰,怎么会更快呢。
40MHz |
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M********y 发帖数: 1964 | 30 俺的Macbook Pro跟你一样,据俺的了解,MBP的驱动不支持在2.5GHz下工作在40MHz带
宽下,只有你的router支持5GHz,MBP才能以全速(270 or 300)运行。根据俺的Apple的
推测,它无非就是想让你买它那个很贵的Airport Extreme Station。 |
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y*******n 发帖数: 10103 | 31 有可能,有的路由器g模式没有40mhz可选。
加密方式一定要改为wpa2-aes。这个对实际性能影响很大。而且Wpa2-aes是最安全的加密方式。 |
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y*******n 发帖数: 10103 | 32 20mhz 指的是channel频率宽度。
5g/2.5g都可以设置20mhz或40mhz的channel宽度。
你这句话真是可以转joke了。 |
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x**l 发帖数: 384 | 33 i flashed beta1,cleared nvram.
however, @ status->overview: channel width is always 20mhz now matter 20mhz
or 40mhz is set @ Basic->Network.
Anyone has the same thing? |
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j*********r 发帖数: 24733 | 34 发文标题(请简明描述技术):
How to get full-speed with RT-N16?
请选择话题(原创,转贴,建议或讨论等)::
讨论
请尽量详细描述技术内容:
Flashed N16 with Tomato and set up the wireless as N only and WPA2-AES. But
the channel is always 20MHz and the top speed is 144Mbps (11) after I tried
all channels. All my clients have T2R2 which should support 300Mbps and
40MHz. Can anybody share the best settings? And I have my WRT54GV4 (DD-WRT)
configed as a bridge and wired with N16 to broadcast G signals. 1 laptop
works well with Win7-64 but another (XP |
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j*********r 发帖数: 24733 | 35 Nobody knows? Thanks a lot.
请尽量详细描述技术内容:
Flashed N16 with Tomato and set up the wireless as N only and WPA2-AES. But the channel is always 20MHz and the top speed is 144Mbps (11) after I tried all channels. All my clients have T2R2 which should support 300Mbps and 40MHz. Can anybody share the best settings? And I have my WRT54GV4 (DD-WRT) configed as a bridge and wired with N16 to broadcast G signals. 1 laptopworks well with Win7-64 but another (XP) can not connect. Already updated firmware (Br |
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p**i 发帖数: 688 | 36 router和client上应该有个地方设Channel Width的, 试试force设成40MHz
But
tried
)
I |
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j*********r 发帖数: 24733 | 37 I did of course, I force it to 40MHz, it actually only shows 20. |
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c*m 发帖数: 1114 | 38 Draft N 有很多猫腻的,up to 300Mbps.超过54Mbps的理论上都可以叫Draft N.
首先你Router得支持在40MHZ有 300Mbps的速度。
其次你的网卡 Draft N需要有Maximum 300Mbps的速度。
4965AGN就是一款阉割的Draft N, 大概最大也就150Mbps, 你天线再多也不行。 |
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t*******f 发帖数: 2634 | 39 【 以下文字转载自 PhotoGear 讨论区 】
发信人: tulipwolf (土狼,秃尾巴狼, 秃 18 Wolfy, 图例玻列夫), 信区: PhotoGear
标 题: Netgear 3500L highly recommended
发信站: BBS 未名空间站 (Mon Nov 8 19:16:43 2010, 美东)
For people who need fast network storage/streaming,
3500L is highly recommended (just tested):
With dd-wrt, wired-to-wired gigabit NICs, 9 feet CAT5e
cables, through put is 887Mbps!
For wireless, 2.4GHz, with 20MHz single channel, 48Mbps
with 40MHz dual channel, 68Mbps.
The wireless results depends on lots of things, including
d... 阅读全帖 |
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w******t 发帖数: 441 | 40 TKIP要淘汰了吧
好像40MHz的话就不能设TKIP |
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j*********r 发帖数: 24733 | 41 Which version you are using? VPN or Ext? The first teddy-bear version I
tried has bug, which does not support 40MHz. Then I tried a earlier version
but need to reboot occasionally. Then I keep updating and the last one I
tried is Dec version but still need to reboot. All of them are VPN one.
One post in this thread pointed me to RAF and I installed it yesterday. I
need to wait to see. The interface looks lot better anyway. Hope it is a
more stable mode. |
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N*****k 发帖数: 72 | 42 In general, the higher frequency, the lower penetration capability.
Therefore, if your house is really big, 2.4GHz can reach much further than
5GHz.
However, the "air quality" of 5GHz is much cleaner due to less interference
from:
1. Neighboring WiFi devices (due to lower penetration capability mentioned
above)
2. Non-WiFi household devices like microwave oven (this one is the killer,
especially for newer "efficient" models), baby monitor, cordless phone (most
of them are 2.4GHz rather than 5GHz... 阅读全帖 |
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k*n 发帖数: 1203 | 43 1. why don't you let router scan all the channels by clicking the small '
scan' button behind the channel selection box in tomato, and pick an empty
channel?
2. why not setting the channel width to 40Mhz to double the bandwidth? |
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N**D 发帖数: 10322 | 44 这个新买的旧E2000到了,设置成5GHz, 40MHz band, 两台电脑都还行,但是wii 不行
了,因为想用wii 看netflix, 但是wii 只能用2.4G, 而且不像买个usb->ethernet
converter
计划是把那个旧的router 用起来, 从E2000上接一根线作为旧router 的input,
但是连不通。
问一下这个router该咋设置?是不是啥forwarding? |
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a*****a 发帖数: 1429 | 45
安全,overall performance好一点,bug少一点,2.4G 5G能分开,N和G能分开,因为
还有些老设备是802.11G的。我以前的老Linksys G挺好,10年了,非常稳定,基本上没
有出过问题。这个Linksys E4200怎么样?想一步到位用个十几年。
你的电脑产品有哪一个用了十几年?这个想法很不切合实际。
要想N和G分开,你得买两个。2.4G的N速度要上去,频宽要40MHz。802.11ac的频宽好象
是160M。 |
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g***t 发帖数: 7544 | 46 加密要设成WPA2-AES。Channel Width要设成40MHz。 |
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l****z 发帖数: 29846 | 47 加密设好了,但channel好像没有这个40Mhz的选项, 是从1-11, 我选了Auto,然后dell的
速度变成了65M. 比原来的只快一点. |
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