江苏南京快三开奖结果

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江苏南京快三开奖结果Cell phone signal amplifier | why can’t your cell phone get on the Internet when the signal is full?

come:Foshan lintratek Technology Co., Ltd.  Release time:2019-11-18

People often use the cell phone status bar to measure the current signal strength. When the cell is less than 3, people will subconsciously think that the current signal is not good, which may not be the case.

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For example, in the same elevator, other people can chat and make phone calls with only one cell phone signal, while the three signals in the status bar of your mobile phone can't be sent out by wechat all the time.


There are many reasons for this, but we need to correct a mistake here. Signal lattice does not necessarily represent signal strength. Different cell phones have different algorithms for signal lattice, so the above situation will appear. Since the cell doesn't represent signal strength, what's the use of cell phone cell?


01 cell phone cell function


The original intention of the signal lattice setting is to display the current signal situation of the mobile phone, and the network will select the best communication frequency band and channel for the mobile phone.

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If you use a multi band mobile phone where there are many people, the mobile signal will jump to the frequency band where the number of people entering the network is relatively small. Therefore, even if the user's mobile phone and other users' mobile phones use the same operator and connect to the same mobile phone tower, the number of signal cells displayed on the mobile phone may not be the same.


In terms of eliminating external interference, more signal lattices do mean better signals. In actual use, the number of signal lattices is only for reference, not enough to be a standard to measure the quality of signals.


This brings a new question: to a certain extent, cell phone signal lattice can reflect signal strength, so is the change of cell phone signal timely?


02 how does cell phone signal lattice change?


The change of cell phone signal depends on the signal algorithm built in by the manufacturer, while the change of cell phone signal depends on the refresh frequency of the signal algorithm. If the built-in signal refresh algorithm of the mobile phone is fast enough, the signal changes quickly; otherwise, the signal changes slowly.


This means that if ordinary people rely on cell phones to find the location of better signals, it is likely to be a waste of time. So, how to measure the signal strength of mobile phone relatively accurately?


03 how to identify the signal strength of mobile phone relatively accurately?


The unit of cell phone signal degree is DBM (milliwatt decibel), which can measure cell phone signal relatively accurately. For the current 4G network, the signal power of - 100dbm is a relatively reasonable level; while - 50dbm can represent the extremely high-quality signal performance to a certain extent, which can only be achieved when the user is very close to the base station.


So, how to view the current cell phone signal level? Users can test the signal strength of mobile phones by themselves, which is a hidden function in most mobile phones.


Take the iPhone as an example, you can open the test menu by entering "* 3001 × 12345 × 4 * in the dial-up interface. Other users can search online how to enter the mobile phone test mode to view the current signal level.


I don't know if you have learned this little skill? Fast forward test mode to see the signal level.


江苏南京快三开奖结果

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