Wireless routers are almost a must-have for every household. Usually we may ignore its existence. However, as the demand for home Internet access continues to increase, the old routers at home often need to be replaced as soon as possible. Recently, many friends have asked me to recommend routers. The basic requirements are nothing less than signal stability and strong wall penetration. At the same time, the prices should be more appropriate. As the routers of thousands of routers are basically not considered, how do we think of such routers? Choose it? Today we will talk about what to look out for when buying a wireless router!
Differences in wireless transmission protocols
At present, more and more home routers are beginning to use 802.11ac wireless protocols, but some hundred-dollar routers still have 802.11n products. Compared with 802.11n standards, 802.11ac standards mainly introduce 256-QAM. Modulation mode, 80/160MHz bandwidth, so the biggest advantage of 802.11ac wireless protocol is faster transmission efficiency, in the case of continuous upgrading of home broadband, it is obviously more able to meet the needs of home users.
In addition, in part, wireless routers that use the 802.11ac wireless protocol also use the MU-MIMO (multi-user multiple-input multiple-output) architecture. Unlike traditional 802.11n MIMO, MU-MIMO allows wireless routers to simultaneously The wireless terminal communicates to further increase the network capacity and energy efficiency and meet the requirement for multiple devices to access the Internet at the same time.
The difference between 2.4GHz and 5GHz
2.4 GHz and 5 GHz are actually wireless signal frequency bands, and 2.4 GHz appears earlier than 5 GHz, so 2.4 GHz is more versatile than 5 GHz, but it also causes the 2.4 GHz band to be too congested, while the 5 GHz band is just right. Can solve this problem. So the difference between the two keys can be summed up in two sentences, speed: 5GHz WiFi faster than 2.4GHz WiFi; coverage: 2.4GHz WiFi than 5GHz WiFi coverage. In addition, the coexistence of 2.4GHz and 5GHz (dual frequency) has become a trend. The advantage of dual-band Wifi devices is that they have stronger anti-jamming capabilities, more stable Wifi wireless signals, and faster transmission speeds. So choosing a dual-band router is also a worthy choice.
The more antennas, the better?
The number of antennas is related to the ability to penetrate the wall? Theoretically, if all routers are compared to the same specification, the more antennas represent higher power, and the application of MIMO technology can also improve the transmission speed. Natural wall penetration performance will be better, but actually On the subject of product hardware design, including the impact of antenna materials, so the conclusion is not absolute, depending on the product, the built-in antenna will not necessarily be worse than the external antenna to receive the news, so the number of antennas Can only be said to be a reference pointer.
2, Gigabit, hundred trillion how to choose?
When buying a router, we have to understand that the quality of wireless signal is not limited by the router. It is fundamentally limited by the network bandwidth. For example, if your home broadband is only 20M, then if you choose a Gigabit router, There will be some waste. Because in the LAN environment, the greater the number of M routers, the wireless transmission speed (network speed) is certainly better, while the Internet speed, it is determined by the size of the broadband. That is 50M broadband, whether it is to use 300M router, or 1200M router, the maximum speed when surfing the Internet can only be 50M, so we have to take into account this point in the purchase, of course, if it is to follow-up upgrade broadband, So definitely recommend that you buy a Gigabit dual-band router, eliminating the need to upgrade the equipment later.
In addition, the network port of the router also needs to pay attention to, at present there are mainly two kinds of Gigabit Ethernet ports and Fast Ethernet ports. Gigabit network card transmission rate is 1000Mbps (Gigabit), and 100Mbps network card (ordinary network card) transmission rate is 100Mbps (100M), the biggest difference between Gigabit network card and general network card is that its network port transmission rate is 1000Mbps. (Gigabit), it is ten times faster than the transmission speed of the 100M network card.
3, repeater is very practical
Home users generally face the problem of wireless signal blind spots, so the signal strength of routers has always been a major pain point for home routers. Everyone hopes to purchase a wireless router with excellent wall penetration capability. However, according to the author's experience using a variety of routers, in fact, even if the thousand-dollar router, in the effect of wearing the wall, in fact, not as another more practical solution, that is wireless repeater / power cat, so Both can achieve the purpose of expanding the wireless coverage, and the cost of the solution is relatively low, and is more suitable for home users to choose.
4, router + NAS useful?
In order to facilitate home users to store videos, pictures, audio and other resources, some high-end home users will also have routers and hard drives in combination, which is obviously in line with the definition of NAS, and some routers have a USB interface. Directly connected to the mobile hard disk, and some router products built-in SATA interface, can be used to insert the hard disk, so that we can store some files on the router side, and can be accessed in the form of FTP, which is now commonly known as "private "Cloud storage" function, but in the choice or rational choice based on actual needs, after all, built-in NAS routers are not cheap in terms of price, if idle is a great waste of resources.
to sum up:
As a must-have device for home networking, the choice of wireless router is actually very crucial, and a practical router is obviously the common aspiration of each consumer, so you don't have to pursue the configuration too much. Instead, you should choose the right one from the actual use requirements. Home routers.
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