WRT54G用了四年了,前几天看到淘宝上有促销,败了一个WHR-HP-G300N,周末有空认真研究了一下,发现这个玩意实在是不值这个价格,改天还是奔E3000去吧。
先说题外话,之前没有仔细的研究过802.11n,路由器到货后直接刷了DD-WRT,笔记本刚连上的时候,显示为65M。靠妖,刚花钱买的新玩意居然这么废材?仔细看了一下,是自己的加密模式设的不对,需要设置为AES加密,默认的TPIK是不支持n的。
几个地方,兄弟们回头设置n无线的时候注意一下。
- Wireless Network Mode NG-Mixed
- Channel Width Turbo(40 MHz)
- Wireless Channel Auto
- Control Channel/Extension Channel Lower(默认就是,这个在dd里不可改)
还有就是频点的设置,按照dd-wrt的wiki,可用频点为1-14,官方推荐值为 2, 4, 6, 7, 8, 9, or 10*,因为1、6、11是大多数路由器出厂时设置的默认频点,容易发生同频干扰,另外1、3、5、11并不能在DD-WRT上很好的工作,即使是将通道带宽设置为40Mhz,1、3、5仍然会强制的降速,再者就是11在大多数地区是受限的,使用这个频点时,路由器会自动降低传送功率和距离,所以,老老实实按照官方建议挑个比较空闲的频点吧。
引用:
Available Settings: 1 – 14 depending on your regulatory domain and channel width
Recommended Setting: 2, 4, 6, 7, 8, 9, or 10*
Controls when channel or frequency your WLAN uses. If you have packet loss or abnormally slow throughput switch to another channel for less interference. All routers default to either channels 1, 6, or 11, it is not recommended to use these channels as most users are inexperienced, and leave them at their defaults. Most of these channels are noisy but for any reason if there isn’t many APs around you using these channels, use them with the exception of channel 11. Refrain from using channel 11 because in most nations, channel 11 is forced to use a severely reduced transmit power, killing your range and/or throughput. Channels 1 – 10 are good for 99% of the world.
While channels 1, 3, 5, 11 work they don’t work properly with DD-WRT. 1, 3, 5 have forced reduced bandwidth even if channel width is 40 MHz, use of these channels (under Canada and USA domains at least) will force your N 150/300 clients down to 65/130!! While this issue does not happen with stock firmware. Channel 11 is explained above, but does not have the reduced width issue.
再说说这个废材,感觉和一百多的WHR-G300N-V2 没啥区别,硬件一样的,廉价的AR7240解决方案,卖到这个价格比较不值。带了HP是增加了内部功放的,我对功率的需求不高,家里一百多平方的范围能收到就可以了,从健康角度着想,功率小点还更好。别和我说Wifi辐射小,接触过不少搞无线的兄弟,大凡在馈线旁边长期干活的,谢顶的概率就是比一般人高。把功率调低是必须的,这里我调整到了12dbm。
比较晕的是,这货不支持在路由器里设置定时开关Wifi,有点搞不明白,这么简单的功能居然不设置???估计是AR7240的问题,间接的方法只能刷dd-wrt,用cron定时调用ifconfig ath0 up/down 。
大家比较关心的功率问题,参看下面截图吧,笔记本距离AP大概1M左右。
注意1:G300N在DD-WRT里的功率已经被本人调整为12dBm. 注意2:一不小心就生活在复杂电磁环境下有木有!
结论—–对不起260的价格。