What does the wireless router transfer speed 150M, 300M, or 450M mean?

The router's M is the short name of Mbps, the bit rate is used to describe the speed of data transmission of a unit, the greater the bit rate, the faster the data flow. Theoretically 150Mbps speed, the rate of transmission per second is 18.75mb/s. 300Mbps speed, the rate of transmission per second is 37.5mb/s, then how are these calculated?

Note: The velocity of the data is variable, and the bit rate is only an average reference value. 1M speed, theoretically is 128kb/s, but in fact only 120 or so not, because the data in the transmission process will have a certain loss. In addition, this bit rate and MP3 or video bit rate is the same, but a different order of magnitude, the common MP3 file bit rate of around 320kbps.

Take the Mbps apart: M is an order of magnitude, that is, a trillion. Trillion represents millions, in mathematics, 1 trillion is 1 million. But in the computer field, M stands for 1024x1024.

b is the abbreviation for bit, that is, bit. This is different from the B in MB that we often say. MB is the meaning of megabytes, a unit used to describe the size of a file, an English letter is 1 bytes, and 1 characters is 2 bytes.

P is per, that is, "every". Thus, Mbps translates into Chinese as megabits per second. /This symbol is equivalent to p.

The Mbps (bit rate) is converted to our common MB/s, just dividing the former by 8.

M is the same, 8 B (bit, bit) = 1 B (Byte, Byte), p and/is the same. S is the meaning of the second.

150mbps÷8 = 18.75mb/s,300mbps÷8=37.5mb/s. That's how it's calculated.

In other words, the router is labeled 150M means that the router can only support 150M of bandwidth, even if your speed is 200M, after the router out also only 150m,300m the same, so that a look at the router you are more understanding of it.

　　Correct selection of wireless router placement upgrade WiFi wireless transmission rate

Many people are concerned about WiFi wireless transmission speed, in addition to network bandwidth and hardware performance, the location of the router is also a very important factor, sometimes for the router to find a good home, do not spend a penny can improve WiFi wireless transmission rate.

Carefully siting a good home for the router

First, the location and placement of routers is the most basic (and most overlooked) two ways to build efficient wireless networks. Most people put routers in the first place they think, which is a big mistake.

You can imagine the wireless router as the center of the sphere, and the network connection extends from its antenna to all directions. My advice is to place the router as close to the physical center of the home or office that must be covered. Start with a building plan or sketch and draw a diagonal line from every corner to determine the center position.

Of course, some people cannot adopt this proposal. Perhaps the center of the building is a wall of stone or a brick chimney, or a network cable can be introduced into a building from the worst possible location. If for some reason, you can't put the antenna in the ideal central position, please do not be disappointed, we will also introduce other solutions.

Now, please look around and find a good home for the router. Avoiding the corners (especially in the old house) is the first step, because the corners will weaken the signal as the signal passes through. In addition, do not put the router in the closet, bookcases or entertainment center is a good place to place the router inconspicuous.

Of course, the wireless router requires an AC outlet and a connection to your cable or DSL data source. If the building's DSL or cable modem lines are in an inconvenient position, please don't panic, you can use directional antennas (we'll mention the next serial article), or extend your DSL and cable lines.

If you choose the latter, you will find that the wall-broken wiring is a laborious and costly project to keep your router in the right place and can cause damage. As an alternative, consider using a thin coaxial cable or an ethernet cable, which can easily be inserted into a wall by a cable wrapped in tape. After you lead the cable to the desired position, apply a thin layer of adhesive or plaster, then paint, and it will be your little secret. The length of this cable is 3~5 meters, the cost of the entire project should be between 80 to 120 dollars.

Careful configuration needs to start with the details

Wi-Fi wireless transmission, when everything is placed in place, connect the router power supply, enter your security settings. The next thing to do, is to adjust the router to the maximum rate of operation. Many routers are set to run at a 75% rate or are automatically adjusted, and I find it best to adjust the signal rate to as large as possible.

Then, set the router to use only one 802.11 protocol, because using mixed mode (most Wi-Fi devices are available for 802.11a/b/g, or even 802.11n clients) lowers the data rate. By using only 802.11g clients, you can increase the performance of the router nearly one times, up from 1Mbps to 2Mbps at a distance of 20 meters. Of course, you must make sure that all connected devices are set to use the protocol you have chosen. If they don't all support the agreement you choose, you either have to give up the proposal or pay to buy new equipment.