OFweek smart home network: The router is a digital product to buy home basically will not be left alone, but at home it is responsible for all the network data transmission work, watching video cards, playing games flash, when downloading things Can not watch TV, all of this has a direct relationship with it.
So in the end how can you buy a reliable router, or that should pay attention to what parameters or functions? Today we will give you a brief review.
When you buy a router, you can see the following parameters:
Transmission Standard [Important]
Antenna gain [Important]
Power supply method [General]
Processor [important]
Memory, Flash, etc. [General]
Of course, there are other data parameters, but for people who do not understand or are just ordinary households, knowing the above data is good or bad, we will talk about it one by one.
The transmission standard, which has the most direct effect on the speed and connection conditions, is the IEEE 802.11b/g/n/ac. This standard is an international standard and represents the data transmission rate of the network. From left to right Increase.
The most common of us is to support the IEEE 802.11N protocol (up to a maximum speed of 300M). If you see a router writing IEEE 802.11G, the merchant says that it can reach 300M, which is why you can only support up to the 54M standard.
IEEE 802.11N can support both 2.4 GHz and 5 GHz frequency bands, which is what people often call dual-frequency routing.
What are the 2.4GHz and 5GHz bands?
This parameter is the operating frequency (wireless transmission rate) of the router. The 2.4GHz frequency band technology is very mature, and it is also the most used frequency band. It has the distinctive feature of strong wall penetration capability. But you also use it. I also use it. This leads to congestion in the channel, so the speed of the network will slow down. The simple understanding is that there are too many cars on the freeway, and it's too soon to think about it.
The 5 GHz band is just the opposite. Its transmission rate is very fast, but its ability to penetrate the wall is weak. However, many route enthusiasts believe that the 802.11N band model is a bit spurious about 5G WiFi, and 802.11AC is the real 5GHz standard.
From the above we can see that the obvious use is between them. The 5GHz frequency band is very fast, but if you change the other room, or if you are far away from the route, it is better to choose the 2.4GHz frequency band. You must ensure the signal. stable. If you are in the vicinity of the 5GHz band, it is faster.
Antenna gain, this data is good or bad, determines the signal strength of the router. We must first say a misunderstanding. The more signals the antenna has, the better. This conclusion is not accurate. If you are buying a 300M router, whether they are 2 antennas or 4 antennas, the whole is 300M and it doesn't get bigger.
The signal strength depends on the antenna gain, placement position, and some related chips. The gain of the antenna may not be well understood by everyone. Let's focus on it. This parameter is not visible in many router specifications. Nowadays, the general router antenna gain is 2dBi/3dBi/5dBi.
dBi is a relative unit of power gain. Theoretically, the bigger the number, the better. Generally, the non-standard manufacturers are likely to be 2 and 3, and if they reach 5dBi, they will basically come out and blow it out. Everyone can simply understand that 5dBi guarantees perfect performance within 5 meters. (Also judge according to the actual situation, such as housing structure, etc.).
When buying, be sure to go inside the product to find out if there is any mention of this thing. The figure above is an excerpt from a rice product introduction.
The way of power supply is important and it is important to say that it is not important. Ordinary route is all direct power supply, but for students in school, it is a bit pit, because most schools are off at around 11 o'clock at night, want to sneak the Internet is no hope, this time can support a charge Po power supply Routing is very important to see if you have this requirement.
The core hardware of the processor is very important regardless of the product, but the router is very special. Even if you tell the parameters you don't necessarily understand, for the average home user, this is not really worrying, as long as the above two The parameters are reliable, and the impact of the processor on you is almost impossible to find.
Memory, Flash, etc. also have an impact on the performance of the routing, but generally only routing enthusiasts will study these parameters, for our average user as long as they understand the "transmission standard", "antenna gain" these two important parameters You can buy a very reliable product.
Is the "smart" word of an intelligent router important?
In fact, in theory, the main responsibility of the router is still used to share WiFi data. The so-called smart is mostly to achieve some remote operations through the APP, such as: remote download movies, remote restart, remote alarm and so on.
For these auxiliary functions, it is still not the primary reference for the purchase route. After determining the important parameters of the product, look at these auxiliary functions again. After all, routers are mainly guaranteed by stability and signal strength.
Very important hint: Want to experience the ultra fast speed of the router 5GHz frequency band, besides want to buy a good router, your mobile phone and the computer also must support the job, otherwise it is unable to find 5G signal, my old notebook It does not support, so it can only continue to use 2.4G with tears. Currently, more and more devices are being supported. Don't forget to check out the relevant parameters when buying a mobile phone or computer.
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