Why stable 4g ​​connection disappears after 1 obstacle?

Question

mobile connection

Hello. We have a private house. In the house in places it catches 2g, on the street it is more or less stable. There is a bathhouse on the side of the tower. When I go around the bath, I catch a full 4g. The connection is stable and the Internet works well (somewhere around 15-20mb/s). Why is this happening? After all, there is only 1 obstacle? Is it possible to somehow solve the problem without amplifiers / repeaters?

Answer 1

The signal does not like obstacles very much. If you have a bathhouse or a metal house or upholstered with metal, then it will reflect the signal. In addition, 4G has a weak range.
As an example, put a WiFi router behind the refrigerator and you will see that the signal practically does not pass through it :)

Answer 2

In 4G networks, the signal is often lower than in the same 2G, in the order of -100dBm to -65dBm. If you are quite far from BTS, then the signal is probably quite weak. And any obstacle reflects part of the signal, part of it fades, and not much of it passes. You can personally measure it, in front of the bath and behind it, with the help of programs, in the play market.