When people buy wireless routers, one of the big questions is whether to choose a single band or dual band, choose dual band say fast, choose single band say cheap, then how to choose?
In fact, this has to be chosen according to your actual needs, the performance of the router determines the Internet experience, different application scenarios may be different requirements.
The difference between single and dual frequency wireless routers mainly focus on the signal range, transmission power, stability and anti-interference.
Single band router in indoor environment anti attenuation ability, but the disadvantage is that many devices work in the 2.4GHz frequency band, so there is a lot of interference, stability is slightly insufficient. Dual band compared to single band, dual band work in 2.4GHz and 5GHz two frequency bands, anti-interference ability is stronger, the signal nature is more stable, work in the two modes of the wireless band must be more stable than a single channel.
Almost every router in 2.4G band, 2.4G band has a total of 13 channel, due to its own characteristics, the signal of a channel interferes with the adjacent 5 channels, the theory of state, only 1, 6, 11 of these channels will not interfere with each other, but in the vicinity of the signal is not necessarily in the 3 a channel, for now, almost impossible to find a channel without mutual interference in 2.4G band.
But if you choose dual band wireless router, you will effectively avoid these bands of signal interference, because when at home, in addition to dual frequency router, almost no other things will emit 5G signals. In the 5GHz band, there are 22 interference free channels, which greatly exceed the number of 2.4GHz interference free channels.
For example, 2.4GHz is like a highway with only 3 lanes, and 5GHz is a highway with 22 lanes, which is more unobstructed and self-evident. And the 5G band uses 11AC technology, which supports higher transmission rate and higher bandwidth support.
Although dual band routers are usually more expensive than single frequency routing, they are absolutely penny wise and pound cents! In terms of signal stability, dual band routing is much better than single frequency routing.
The end of "tangled frequency" or "single frequency" of the problem, then you will encounter "router brand choice", market products make people dizzy, a superb collection of beautiful things, in the purchase of wireless routers do not easily by the number of the antennas, the transmission rate.
So how do you choose dual frequency router?
In order to give full play to the performance of 11ac dual band routing, in addition to home broadband to meet the requirements, the router hardware configuration should also meet the standard, dual frequency routing is best for all Gigabit ports. Everyone in the purchase of a router must pay attention to, and now many under the banner of "full Gigabit router" banner, but in fact only the WiFi and WAN port Gigabit, LAN port is fast opening, consumers can easily confused by this.
Like computers, routers also contain a central processor, whose performance directly determines the hardware performance of the router. Request routing on chip frequency is relatively high, Broadcom, Qualcomm, Realtek are mainstream chip program more common, more reliable.
Instead of just looking at the number of antennas, the number of antennas does not mean the better the signal! It is not the number of antennas, but the transmit power of the antenna that determines the capacity of the WiFi signal through the wall. The larger the value, the stronger the penetration ability, the more attention can be paid to the router. In addition, the material quality of the antenna also directly affects the through wall performance of the router.