Since the mobile phone can access the internet, the strength of the WiFi signal has always been an important measure of the quality of life, and in order to enhance the WiFi signal, people started to study various ways.
In many remedies, with the modified cans set on the antenna of the wireless router to enhance the WiFi signal to improve the signal quality of the method, due to low cost, operability, by a lot of users, some users said After the transformation of the WiFi signal is indeed better, from 1 to 2 grid, 2 grid to full grid may be achieved.
This 'old' trick has rarely been tried today, but we're still curious that a can opener really enhances the WiFi signal?
WiFi signal strength and speed of the relationship
Before doing the actual measurement, we think that half of the cans have some effect in this approach.The principle of the method is that the omnidirectional antenna of the wireless router is transformed into a simple directional antenna, so in theory, in the focus of the can and the nearby area, There will be some signal enhancement.
However, when the network speed is fast, the signal must be good, and when the signal is good, the network speed may not be fast. In this case, the signal strength needs to be satisfied, and the wireless route sends the data to the data node at a high speed. The truth here is not to say that in general, the signal is good or you can think of speed will be faster, so we not only need to observe from the experiment of this DIY method of signal strength, more importantly, the speed and The impact of stability.
Test preparation
DIY stage is very simple, not too much here to note. It should be noted that the cans to be cut open, not the whole set in the antenna.
In addition, the wireless router is such an external whip antenna, the signal in the horizontal direction is the best case of vertical placement, if you want to enhance the signal strength across floors, the antenna can be placed horizontally, Then a good set of modified cans.
Last but not least, the shortcomings of this DIY method are also obvious, that is, the direction of the signal on the back of the cans will be worse.Test method is relatively simple, we set the data collection point at two locations of 0.5m and 35m from the router, respectively Three items of signal strength, delay and download speed were measured with and without cans (a total of 10 acquisitions and averaging).
It is worth mentioning that, 35 m sampling points and routers separated by 3 walls, the conditions will be more demanding, but also more reference value.The reason why the distance of 35 meters is selected because the WiFi signal has become Very poor, when the speed is very easy to link the case of disconnection, it is suitable for testing cans signal enhancement.
As we use the millet router 3 has four antennas, in order to avoid interference, we put two 5G signal antenna and another 2.4G signal antenna down, leaving only a 2.4G signal antenna for testing.According to the whip Antenna principle, the vertical 2.4G antenna horizontal coverage than the other three wider, we can easily rule out the remaining three antenna signal coverage at 35 meters.
Test Results
In the first test, we got a very unexpected result. After putting the cans, the signal at 35 meters was not much different from that when there was no cans, but the latency was significantly improved and the download speed was greatly reduced.
Next, we made a series of adjustment attempts on the aluminum can curvature of the cans and obtained better test data after many tests:
It can be seen that after adjusting the bending posture of the aluminum skin, most of the data is better than the case without the cans, in particular, the number of the link-offs. In the case of 10 times of speed-measuring, there are altogether 5 disconnections in the absence of the cans, Re-speed, but only after the adjustment of a dropped calls, but also shows that this transformation is indeed a certain effect.
However, this transformation is still very much in need of patience, especially the last adjustment is more time.And even after a lot of tossing, signal improvement and download speed increase gains are very low, which may be used with our aluminum cans Smaller area.
In general, cans really improve the WiFi signal strength, but the benefits are not high.
