Why you can't put your phone on your laptop

A mobile phone is a transceiver that interacts with base stations (BS). Once turned on, it is in the station signal monitoring state. At the same time, it periodically emits a fairly powerful signal to communicate with a station, which can be located at considerable distances. The transmitter power of a cell phone is 0.5-2 W.

The laptop also has its own antennas in the form of Wi-Fi and Bluetooth interfaces, the power of which is much lower compared to a mobile phone. On average, it ranges up to 100 mW. If the cell phone is placed on or near the laptop, its signals are detected or detected, which can lead to distortion of the sound coming out of the laptop.

What could be the consequences?

Signal detection can distort the sounds coming out of your laptop or computer speakers. This results in the appearance of unusual interference. They usually appear a few seconds before an incoming call. It is during this short period of time that the base station requests the mobile to accept an incoming call.

The station's signal sends electromagnetic waves that resonate with the sound waves of the laptop or computer speakers. If the mobile phone is lying on a laptop or nearby, then the speakers of the latter pick up these signals, perceiving them as sound. They decipher them and reproduce them in the form of crackling or noise.

Attention! If interference occurs every 5-10 minutes, but the phone does not ring, this may mean that the device is being tapped or has a bug installed.

Similar periodic sounds may occur if the BS is checking the functionality of the phone or its location. The radio waves that are sent interfere with the speakers, preventing them from working. In this case, you can contact the service center and find out about possible technical work (for example, a mobile phone can be transferred to a less loaded BS).

Safe distance between devices

The phone and the BS are in continuous contact. When the mobile is turned on, it constantly listens to the airwaves to search for a station and sends its signal. There are no guidelines for the recommended distance between the phone and the computer.

Reference! If the laptop operates in the cellular radio wave range, then the phone increases the power so that the BS can hear its signal. For this reason, the cell phone battery drains faster.

Regulations establish the distance from some devices to a person at which their operation is safe for health. For example, it is recommended to install a Wi-Fi router or femtocell (miniature cellular home station) at a distance of 1 m. In this case, the signal level is reduced by 10 times from the normatively acceptable level. Using this standard, you can keep your mobile phone at a distance of 1 m from the computer. In any case, it is much more rational than putting it on a laptop.