Things that interfere with cell phone signals
There are several things that can affect how good your cell phone signal is, things that you might not automatically consider when a call drops or when your phone shows the dreaded no bars. If you know and understand the types of things that can interfere with cell phone signal strength, you will be in a better position to make sure your calls all get through.
Here are the 5 Things That Can Affect Your Phone Signal.
1. Terrain
Your mobile phone communicates using simple radio waves and these travel in straight lines from your phone to the nearest visible cell tower. Anything that gets in the way can cause loss of signal strength or even signal failure. For example, if your nearest cell tower was a km away, but hidden behind a hill, and the next visible tower was five or ten km away, your phone would be forced to connect to that one. rather than the much closer tower. In this case, distance would also begin to have an effect on signal strength. If you lived in a valley and all of the cell towers were outside the valley, you would effectively be in a Dead Zone.
You might think that living in a city would be like being in an unnatural valley all the time but there are usually smaller radio towers or antennas placed all over cities, so the signal never has to travel far. Radio signals can also bounce off buildings. and round corners, so you might not even need line-of-sight with a tower to get a signal. Again, in this instance, signal strength would be lost.
2. Distance
The distance they need to travel is always a factor with any radio waves and your phone signal is no different. The atmosphere is full of particles and even in perfect conditions, i.e. no dust, rain or snow, the furthest distance to the nearest cell phone tower will need to be less than 40 km if you expect any sort of signal. Theoretically, a radio wave from a mobile phone could travel 70 km but depending on the network carrier, components used and the receiving equipment, the real-world distance could be as low as 30 km.
The more powerful the transmitter, the further the radio waves will travel but there is a limit to how powerful a smartphone radio can be. In a city, distance is rarely a problem but in the great outdoors, or even just in rural towns/remote areas, this is probably going to be the biggest factor affecting the quality of your mobile signal.
3. Weather
Following on from the effect of distance on your mobile signal, is the effect that weather can have. Just how much effect the weather has on your signal depends very much on the type of weather. For example, heavy cloud can cause problems due to complicated sounding things like changes in radio propagation and signal reflection. Heavy rain can really get in the way of radio waves and even light rain will have some effect, particularly if your device is using the high frequency ranges used by 4G.
In general, water in any form will reduce how far radio waves can travel and in particular the high frequency waves used by mobile phones. Water vapour will actually absorb energy from the radio waves, converting it into heat. removing its strength.
4. Building Materials
Being inside a building will, to at least some degree, effect how well the signal travels. Commonly used building materials like concrete, steel, brick and plaster are all great at blocking radio waves. Walls of mainly steel construction, or concrete walls with lots of steel reinforcing bars inside, will have the worst effect on signal. This is especially true in rooms such as basements, due to the lack of large windows.
If the lack of signal is just inside the building, i.e. you can get a good signal in the garden or on the balcony, it may be worth investing in a signal booster. This is a fairly simple device that receives the signal inside the building and passes it through a cable to an externally placed antenna. It can then be sent to the nearest mast. If you don't even get a good signal outside, à signal booster won't help.
5. Movement Speed
To make call, your phone needs be able to send and receive signals to a tower. This back forth happens incredibly quickly, if you are standing or even moving slowly, there is no problem. However, as soon as you start move at speed (in a train for example), constant changes position can begin to cause issues. Travel at over 90kmh you will probably notice distinct drop in call quality anything 160kmh probably see calls being dropped completely or at the very least with stuttering interference. Of course, you also have the added problem of potentially moving behind something that obstructs the radio waves as you travel.
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