DD-WRT adjusting transmit power

DD-WRT equipment can help us to achieve any adjustment of the purpose of the transmit power, so that we can be based on the wireless network card distance from the DD-WRT wireless router to determine the strength of the transmit signal. Below we speak with the facts, step by step teach readers how to adjust the transmit signal power in the DD-WRT equipment, and compare the received effect before and after the adjustment.

I. Default reception results:

We turn on the DD-WRT wireless device, with your wireless network card scanning wireless signals in the network will see the SSID number DD-WRT wireless network signal strength is two cells.

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In this case, open the browser and enter http: // 192.168.1.1 in the address bar and press enter to enter the logon username and password, and then find "Advanced Settings" under the "wireless" tab ", at the xmit Power Point, we can see that the transmit power of the DD-WRT device is 28 MW by default, which is also the Standard transmit power for most wireless devices. We can see from the prompt below that we can freely modify the transmit power, the size range is 0 to 251 mW.

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Next, enable the wireless signal scanning tool network stumbler on the local machine to scan the current signal strength. We can see that the signal strength received by the wireless network adapter is about-72dbm by default when the 28 MW transmit power is used.

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Ii. Increase transmit power:

Next, we will modify the default transmit power. To improve the effect, we will change the transmit power of the wireless signal to a maximum of 251 mW.

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We start network stumbler again to scan the wireless network. You will find that the received signal strength is increased. Although not obvious, it is at least stable at-70dbm, the peak value has reached about-68dbm. In addition, in the signal scanning tool provided by the XP system, we can see that the signal strength has changed from the original two grids to three grids.

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Iii. Reduce transmit power:

Finally, we reduce the transmit power method to see the receiving effect, we enter the DD-WRT device management interface, and then the xmit power to the minimum 1 MW, to detect the actual effect.

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After the computer through the XP Wireless signal scanning tool will find that the fundamental scanning of DD-WRT wireless network signal, it seems that 1 MW signal strength is too weak, the local wireless network card can not receive the signal.

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Start the network stumbler software to scan the wireless network, nor can it detect the DD-WRT wireless network.

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Iv. Summary:

Of course, there is a limit to adjust the transmit power. We cannot blindly increase the power. After all, it is harmful to the body. If the signal is sufficient, we can also reduce the standard signal power to reduce the radiation of wireless signals to the body. By adjusting the xmit power, the DD-WRT can automatically adjust the transmit power of wireless signals to suit the user's actual needs, thus transmitting better wireless signals than other wireless devices.

Of course, we should first use the default 28 MW for testing for ordinary users. If we find that the receiver is not performing well, it will gradually increase until the effect is satisfactory. Through this article we have learned a special function of DD-WRT wireless equipment, can be exaggerated to adjust the transmit power function of wireless equipment is a highlight of DD-WRT, he allows us to solve a lot of problems that we could not solve before, and select a suitable power to build our own wireless network.

Of course, when increasing signal transmission, you should also pay attention to the health of yourself and your family. In particular, if you have children or pregnant women at home, try to use wireless networks as little as possible.