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think that dbm is the maximum value of 0, meaning that the receiver of the transmitter launched all the wireless signal received, that is, the wireless router fired how much power, the reception of the wireless network card to obtain how much power. Of course, this is measured in an ideal state, in practice, even if the wireless network card next to the wireless router transmitter antenna will not achieve the effect of dbm 0. So the measured dbm val
one, human factors The distance between the wireless router and the network card is too long, in this case can only be solved by a different configuration of the appropriate antenna. The wireless router and the network card have the obstacle influence, sometimes also can cause the disconnection breakdown, for instance the indoor complex environment, the wall, the furniture influence. So try not to go through walls over three floors as much as possib
Today's home routers usually bring a few antennas, long, the appearance is not good-looking, but most users like, think has the antenna router launch out of the signal will be very good, even in the home more remote corner, mobile phone show WiFi signal is also full, that is to wear a wall effect is very good, is this? The first thing we need to sort out is the weak WiFi signal for routers and mobile phones. Because the mobile phone's main function
different periods. 2. 3G Wireless network optimization process From the experience of domestic CDMA network optimization and the experience of 3G operation in foreign countries, the optimization process of 3G network can be started from following several stages. (1) Verification A Verify all information related to wireless in the database: including site coordinates, structure type, antenna position, antenna
multi-dimensional transmission scheme: one single RF channel is used to send and receive two or more signal streams. As a result, the wireless communication system can transmit data twice or more in a channel. In the system, use more than one high-integration RF upconverter) and antenna to transmit these multiple signals, and there is also more than one high-integration RF downconverter) and the antenna to
channel. In this way, all users use the channel in the default configuration of the router, which is prone to channel interference. If nearby neighbors use the same channel as ours, our wireless signals will be affected. We can also use the Network Stumbler software for scanning to see which wireless signals exist nearby and which channel is used. Then modify our own wireless channels to avoid duplication with other channels. In addition, you should note that the signal of a channel will interf
. In this way, all users use the channel in the default configuration of the router, which is prone to channel interference. If nearby neighbors use the same channel as ours, our wireless signals will be affected. We can also use the Network Stumbler software for scanning to see which wireless signals exist nearby and which channel is used. Then modify our own wireless channels to avoid duplication with other channels. In addition, you should note that the signal of a channel will interfere with
channel in the default configuration of the router, which is prone to channel interference. If nearby neighbors use the same channel as ours, our wireless signals will be affected. We can also use the Network Stumbler software for scanning to see which wireless signals exist nearby and which channel is used. Then modify our own wireless channels to avoid duplication with other channels. In addition, you should note that the signal of a channel will interfere with two adjacent channels at the sa
one, human factors The distance between the wireless router and the network card is too long, in this case can only be solved by a different configuration of the appropriate antenna. The wireless router and the network card have the obstacle influence, sometimes also can cause the disconnection breakdown, for instance the indoor complex environment, the wall, the furniture influence. So try not to go through walls over three floors as much as possib
realized by using multiple circuits and packet switching connections on a single terminal. You can support business with different quality requirements, such as voice and packet data, and ensure high quality and perfect coverage. (2) High spectrum efficiency. WCDMA can efficiently use the radio spectrum. Since it uses single cell multiplexing, frequency planning is not required. The network capacity can be greatly improved by using the layered cell structure, adaptive
The combination of Wireless AP and wireless route is essential for network construction. For an enterprise, it is possible that a wireless LAN cannot be fully covered. It is especially important to combine Wireless AP and wireless router devices. This article provides a detailed introduction to this problem. Due to work requirements, there is now A need for both Departments A and B to connect wireless networks at the same time, but the employees of the two departments cannot access work informat
. The signal scattering from the center to the surrounding area is used. Therefore, an omnidirectional antenna is used in the selection of the antenna to facilitate signal transmission in all directions so that all directions can receive the signal. The antenna that receives wireless signals at the edge must adopt a targeted
Currently, wireless dual-network technology is also popular. How can we build a complete network? The following articles describe the technical aspects of home applications. The dual-AP function is not a dual-antenna function. In order to facilitate wireless internet signal reception and provide efficient and unobstructed wireless signal transmission, wireless manufacturers have launched wireless router devices that support dual-
network services are discovered through various means, we will analyze the test data and parameters to determine the cause of the problem and take appropriate measures to optimize the network. 1. common hardware faults: (1) Adjustment of base station coverage When the signal in the base station coverage area is poor, you can increase the coverage range by raising or downgrading the antenna height, checking the an
feature can be used as two wireless router devices, with this wireless router device, we can quickly and effectively build A secure wireless dual-network to ensure that the Network in Room A is separated from the network in room B. Dual-AP function AP wireless router is not dual-antenna Function In order to facilitate wireless internet signal reception and provide efficient and unobstructed wireless signal transmission, wireless manufacturers have la
Eliminate misunderstanding: the more wireless route antennas, the better the signal? (1) A strange consumption habit exists in the daily consumption behaviors of most consumers. when the price is almost the same, consumers prefer products with a "large quantity. In addition, the phenomenon of follow-up is also very serious. Many facts did not go to the research, and they took the plunge. "I will buy more products if I buy more products ". Fans of the "Car god party" and "heavy doors" are the mo
There are very few FM searching machines. This problem should be divided into two categories, Category 1: If you manually adjust each station, you can hear clear radio stations. You only need to change the stop threshold of the station The number of search sites has increased, Another type: manually adjust to a radio station with poor signal, and compare it with the FM of the brand mobile phone, it is found that the FM effect is obviously worse than that of the brand mobile phone, for example, t
previous generation of wireless devices do not need to worry that existing devices will be eliminated. In terms of security, D-link dwl-g122 supports Wi-Fi Protected Access (WPA), provides the necessary security protocols and tools to provide confidential communications to you and other wireless users, such as access to sensitive information or dynamic encryption of data transmission. WPA authenticates users by automatically changing the secret key within a regular interval. Second, Lei ke NW
H-antenna Placement Time Limit:1000MS Memory Limit:65536KB 64bit IO Format:%lld %llu Submit Status Practice POJ 3020 Description The Global aerial Centre has been allotted the task of building the fifth generation of mobile phone Nets in Sweden. The most striking reason so they got the job, is their discovery of a new, highly noise resistant, antenna. It's called 4DAir, and comes in four types. Each type ca
) The numerical value becomes smaller, the reading and writing is convenient. The total magnification of the electronic system is usually thousands of, tens of thousands of or even hundreds of thousands of, a radio from the antenna received from the signal to the speaker sound output, a whole to zoom in about 20,000 times times. In decibels, the logarithm is taken first, and the value is much smaller.(2) convenient operation. When the amplifier is cas
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