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发表于 2011-4-16 17:34
本帖最后由 文笔钻山 于 2011-4-19 19:45 编辑
Question: Is 5 GHz Wireless Network Hardware Better than 2.4 GHz?
这一句话还是翻译一下，根据我的感觉，应该是：5GHz的网络比2.4GHz的网络更好？
Wireless computer network equipment typically uses radio signals in either a 2.4 GHz range or a 5 GHz range. These numbers are advertised prominently on product packaging, but their meaning is often misunderstood. Is 5 GHz network hardware better than 2.4 GHz hardware just because it carries a bigger number?
Answer: No. 5 GHz hardware offers a few advantages over 2.4 GHz hardware, but in practice, 2.4 GHz is usually the better choice for home and other wireless local networks. GHz and Network SpeedThe GHz range of a wireless radio only partially relates to the speed of a wireless network. For example, 802.11a Wi-Fi hardware runs at 5 GHz but supports the same maximum data rate of 54 Mbps as standard 802.11g network that run at 2.4 GHz. A 5 GHz network can carry more data than a 2.4 GHz network assuming the electric power to the higher frequency radios is maintained at a higher level. However, some 802.11g network products match and even exceed this potential speed advantage of 5 GHz 802.11a by utilizing a pair of radios instead of one, increasing capacity up to 108 Mbps under the right conditions. Advantage: Both GHz and Network RangeThe higher the frequency of a wireless signal, the shorter its range. Thus, 2.4 GHz networks cover a substantially larger range than 5 GHz wireless networks. In particular, the higher frequency wireless signals of 5 GHz networks do not penetrate solid objects nearly as well as do 2.4 GHz signals, limiting their reach inside homes. Advantage: 2.4 GHz. GHz and Network InterferenceYou may notice your cordless phone, automatic garage door opener, or other home appliance also advertises 2.4 GHz signals on its packaging. Because this frequency range is commonly used in consumer products, it's more likely a 2.4 GHz home network will pick up interference from appliances than will a 5 GHz home network. Advantage: 5 GHz GHz and CostSome people mistakenly believe 5 GHz network technology is newer or somehow more innovative than 2.4 GHz. In fact, both types of signaling have existed for many years and are both proven technologies. 802.11g Wi-Fi products that run at 2.4 GHz tend to cost less than 802.11a Wi-Fi products not because 802.11g is obsolete or less capable, but because 802.11g is much more popular and thus economical for manufacturers to support. Advantage: 2.4 GHz 5 GHz vs 2.4 GHz - The Bottom Line5 GHz and 2.4 GHz are different wireless signaling frequencies that each have advantages for computer networking. Higher frequency networks are not necessarily superior to lower frequency ones, however. So-called dual band hardware combines the best of both types of hardware by integrating both types of radios into the product.
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译文部分：【】里的内容表示我翻译的不怎么准确
（第一句已翻译，在此就掠过）
无线计算机网络设备，通常会使用任何一个在2.4 GHz的范围或5 GHz范围内的无线电信号。这些数字是在产品包装显着位置宣传，但是他们的意义往往被误解。 5 GHz的网络硬件超过2.4千兆赫的硬件只是因为它能承载更大的数据？
回答：第5 GHz的硬件提供了超过2.4 GHz硬件的一些优势，但在实践中，2.4GHz往往是家庭和其它无线局域网络更好的选择。GHz和网络速度。无线电台频率范围内仅部分涉及到无线网络的速度。例如802.11a在2.4 GHz的无线网络硬件上运行，但在5 GHz支持相同的最大数据速率为54 Mbps的802.11g标准的网络，也在2.4 GHz运行。一个5GHz的网络就可以比一个2.4 GHz电气化在一个更高的水平承担更高频率的无线电网络更多的数据是在一个更高的水平。然而，一些与802.11g的网络产品相匹配，甚至超过了利用无线电通讯设备，而不是一个利用对这种潜在的5 GHz的802.11a的速度优势，提高能力在适当的条件下以108 Mbps的优势：两个相同的GHz和网络范围【高于的无线信号频率】，缩短它的范围。所以，2.4GHz网络覆盖比5 GHz的无线网络范围大幅增加。尤其是比5 GHz的频率更高的无线网络信号不会穿透固态物体，【以及做了近2.4 GHz信号】，限制了他们在家园范围。优势：2.4千兆赫。GHz和网络干扰你可能会注意到你的无绳电话，全自动车库门开启器，或其他家电也通告封装2.4 GHz信号。由于这个频率范围通常在消费产品中，它更可能使2.4 GHz家庭网络用户将选择干扰更少、有5GHz以上的家庭网络设备。优势：5 GHz。GHz和成本。一些人错误地认为5 GHz网络技术是新的，或在某种程度上超过2.4GHz的创新。事实上，这两种类型的信号已经存在了许多年，都是成熟技术。与802.11g的Wi - Fi产品相比，在2.4 GHz运行成本往往低于802.11的Wi- Fi产品，不是因为802.11g是过时或能力较差，只是因为802.11g是更受欢迎，从而为制造商喜爱，以及经济支持。优势：5 GHz对比2.4GHz。5 GHz和2.4 GHz无线信号本质、频率是不同的，每个计算机网络都有自己的优势、高校频网络不一定优于低频率的，但是。所谓的双频段硬件结合了两者的最佳，就好比集成两种类型的收音机。
至于那些链接，就是不怎么解读了，无关紧要。
本人翻译技术很差的，才初中的水平，主要是提供谷歌的整句翻译+单个词语多个意思选择来进行，当然，还有我的语文润色。如果有不好的地方，欢迎大家来修正。 |
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