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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
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
. Extended antenna enhancement Signal Because the antenna gain size directly affects the signal transmission strength and receiving capability, some routers on the market use detachable antennas, therefore, replacing a high-gain antenna with a wireless router is the most direct method to enhance the signal. The gain antenna
electromagnetic interference to wireless networks when working, so the placement of wireless routers should also be as far away as possible. 3. Extended antenna enhancement Signal Because the antenna gain size directly affects the signal transmission strength and receiving capability, some routers on the market use detachable antennas, therefore, replacing a high-gain
1. DBMDBM is the absolute value of power. The formula is: 10lgp (power value/1 MW ).[Example 1] If the transmit power P is 1 MW, it is converted to dBm and then 0dbm.[Example 2] for 40 W power, the converted value in dBm unit should be:10lg (40 W/1 MW) = 10lg (40000) = 10lg4 + 10lg10 + 10lg1000 = 46dbm. 2. DBI and DBDDBI and DBD are the obtained Gain values (power gain). Both are relative values, but the reference standards are different. The reference of DBI is a full-direction
relaxing. The middle of the front-row central armrest is placed in the middle of the front-row seat, while the majority of the back-row central armrest is a foldable armrest, placed in the center of the back-to-back. ●Body Color It is the color of the vehicle body painted at the factory. We usually divide the color of the body into three categories: monochrome, two-color, and color trim. Currently, most cars are in a single color (also called the same color), while Mini and smart cars are in
receives the digital signal to receive the D/a transformation, becomes the analog signal. Bluetooth module BRF6100 Bluetooth signal transceiver is realized by Bluetooth module BRF6100. BRF6100 is the TI company recently introduced to follow the Bluetooth V1.1 standard wireless signal transceiver chip, its upgrade model BRF6150 support V1.2 Standard, BRF6100 main features are: Digital wireless processor in-chip DRP (Digitalradioprocessor), CNC oscillator, Chip RF transceiver switch switch, bui
channel. This frame structure is subdivided into several time slots. In the TDD mode, it is easy to switch between the upper and lower links flexibly. The salient advantage of this pattern is that the time slot allocation between the top/downlink links can be changed by a flexible conversion point to meet different business requirements. In this way, using TD-SCDMA technology, all 3G symmetric and asymmetric services can be realized by changing the switching point of the upper/down link flexibl
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
, which allows you to buy a wireless network card separately ". The built-in MiniPCI wireless Nic does not integrate a signal antenna. Therefore, to install the MiniPCI Nic, in addition to requiring the laptop to reserve a MiniPCI slot, you must also have a preset antenna or a preset antenna. Not all brands of MiniPCI interface wireless NICs can be used in any mo
process. Wireless NICs generally have two types of antennas: External antennas and built-in antennas. If the purchased wireless NICs do not have built-in antennas, you must purchase another one. However, the advantage of an external antenna is higher gain and better sensitivity. It can adjust the direction of the antenna to receive better signals. The built-in antenna
1. DBM DBM is the absolute value of power. The formula is: 10lgp (power value/1 MW ). [Example 1] If the transmit power P is 1 MW, it is converted to dBm and then 0dbm. [Example 2] for 40 W power, the converted value in dBm unit should be: 10lg (40 W/1 MW) = 10lg (40000) = 10lg4 + 10lg10 + 10lg1000 = 46dbm. 2. DBI and DBD DBI and DBD are the obtained Gain values (power gain). Both are relative values, but the reference standards are different. The reference of DBI is a full-direction
Several employees in unit A usually use laptops. Due to work reasons, they need to set up wireless networks for resource sharing. Also, several employees in Room B need wireless networking; by nature, building A slightly larger Wireless LAN can meet the wireless Internet access needs of all employees in Room A and room B. Considering the security concerns, the company intends to build A wireless LAN for several employees in Room A to prohibit employees in other offices from accessing the privacy
receiving devices located behind the obstacle will receive very weak signals or fail to receive signals. What about penetration? This is what many netizens are most concerned about. We all hope that wireless signals can penetrate the walls of the house at least. To improve the ability of wireless signal to penetrate the wall, an effective way is to improve the antenna gain. We 'd better choose a product with a high
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