Have you bypassed these big pits for buying routes?

A few days ago comments message area has a small partner to help Xiaobian want to buy a router, Xiao Bian think it necessary to give everyone popular about the router's purchase trap, after all, in the exaggeration, flashy propaganda, many confusing / misunderstood technical specifications, It will eventually lead to the user's misperceptions. Today may wish to share the router selection traps that Xiaobian sees daily.

Gigabit routing

Many so-called Gigabit routers are emphasizing their own Gigabit wireless links, and then we must emphasize that the WAN port is Gigabit, etc. What about the wired LAN (LAN port)? Sorry, only one hundred trillion. Gigabit wireless with fast LAN, you tease me? The reason why this kind of design, is nothing more than that manufacturers believe that wired LAN is useless, are all wireless links. However, for users who play games or LAN transmission (such as ultra-clean movies), this is simply an unreasonable design.

Xiao Bian Tip: Now that some routers are obliged to do so, they have to emphasize the full Gigabit design to distinguish this so-called gigabit routing. In Xiao Bian's opinion, the best router is all Gigabit, including LAN interface, including all Gigabit support, so that there will be no short legs, to know that 100Mbps transmission capacity is only 12.5MB/s (or theoretical value) In the face of today's massive data, this transmission capability can still be done?

Through the wall routing?

One of the characteristics that many wireless routers love to say most is "through the wall". Various blessings are used to make the wall omnipotent and cover no dead ends. But if you really buy a home, you feel that going through the wall will be so completely. It's so magical. What's going on here? In fact, manufacturers are nothing more than signal enhancement through technology optimization. Generally, there are two methods. The first is redesigning the antenna to make certain specifications on the shielding and directivity. The second is simply increasing the power. The regulations require that the power consumption of the wireless signal transmission should not exceed 100mv. The average manufacturer chooses to control the wireless power between 30mv and 50mv. Some so-called wall-penetrating routes reinforce this effect and directly limit the power consumption to 100mv. It is naturally stronger.

Xiao Bian tips: But do not think that 100mv "high power" can solve the problem through the wall, all in front of reinforced concrete walls are slag, 2.4GHz signal is slightly better, 5GHz wireless signal attenuation at least 30% or more ! After two reinforced concrete walls, the wireless signal is almost to waste wood, so the correct approach is to install more wireless AP, especially at the end of the signal coverage, so that the complement signal is the positive solution, like to rely on a routing without cover It is a crazy dream.

5G routing is not 5G

Do not know whether the small partners pay attention to not, when Xiaobian said that the wireless router, are all written "2.4GHz/5GHz" unit GHz, many routes are nominally 5G routing, write less "Hz." These two are completely different meanings, where GHz refers to GHz, which is the unit of frequency; and 5G now refers to "5th generation mobile networks / 5th generation wireless systems", which is the fifth generation mobile communication technology standard. This shorthand is easy to misunderstand, thinking that the current routing supports 5G networks that have not yet been opened.

Xiao Bian Tips: 5G and 5GHz are two things that are unmatched. We still hope that manufacturers can accurately use words in their promotion to avoid confusion among consumers.

Is 1200Mbps and 1900Mbps false? !

Do small friends look at their routing packages, do they all write speed labels that are 1200Mbps, 1900Mbps, and 2100Mbps? Think happy! So fast link speed, is it not too cool? ! This is actually 802.11n + 433Mbps/866Mbps 802.11ac total speed of 300Mbps/450Mbps only! In other words, when you connect a 802.11n (ie, 2.4 GHz) signal, the maximum speed is not more than 450 Mbps (physical limit). When you connect an 802.11ac signal, it is generally 433 Mbps/866 Mbps. This is because the connection speed depends not only on the router, but also on your laptop, mobile phone connection capabilities. Therefore, blind pursuit of the so-called limit connection speed is not only unrealistic, but also useless.

Xiao Bian Tip: At present all the mobile phone Xiao Bian highest also seen to be able to achieve 866Mbps connection capabilities (most are actually 433Mbps), the notebook is almost 866Mbps to the end, of course, if you are willing to spend more money alone with a more High-speed 802.11ac network card, which can achieve higher connection speed with high-speed 802.11ac routing. In addition, there is one more point. “Barrel theory” tells us that determining how much water a barrel can hold is determined by the lowest piece of wood. In the same way, the transfer rate decided to upload/download is determined by the smallest bandwidth in the network path! Do you understand this?