Modems of the WiMax standard (in particular, Yota networks) operate in the microwave range. Radiation at such frequencies behaves like ordinary light: it can be blocked, focused. It is these properties that should be used to improve reception.
Instructions
Step 1
Despite the similarity to light, microwave radiation has a slightly higher penetrating power. It is capable of passing through objects that are opaque to visible light, provided that they do not conduct an electric current. On the other hand, due to the significant wavelength, the usual metal mesh-netting, which retains only a small part of the visible light, can become an almost insurmountable obstacle for microwave waves. This also applies to metal rods in reinforced concrete. If you are in a reinforced concrete house, and even more so in a construction trailer, sheathed with solid sheet metal, bring the modem to the window, and the reception will noticeably improve. If the modem is directly connected to the computer, use a USB extension cable, but not any one, but one that meets the requirements of the USB 2.0 standard, otherwise the data transfer speed will be slightly slower.
Step 2
Microwave radiation can also be delayed and even re-reflected by large objects such as neighboring houses. Re-reflection is capable of creating a so-called interference pattern, consisting of signal minima and maxima. To find the maximum, also use a USB extension cable. Since the signal strength indicator reacts to changes in reception conditions with some delay, move the modem around the room slowly, both horizontally and vertically. Sooner or later, you will find a place where the signal strength will be significant. Note that since the human body is electrically conductive, moving people around the room can change the shape of the interference pattern.
Step 3
If the reception quality changes unexpectedly and abruptly, do not be lazy to go to the kitchen and see what is happening there. The reception may deteriorate during periods when the microwave is used. It works in a close part of the range, but with much higher power, and if it affects the operation of the WiMax modem (and ordinary WiFi devices), this means that there is a radiation leak in it. This is hazardous to health and such a stove must be repaired immediately by a workshop.
Step 4
The longer wavelengths the electromagnetic radiation is, the rougher the surface is suitable for focusing it. That is why satellite dishes are not polished to a mirror finish. For a Yota modem, you can also make a semblance of a parabolic antenna by placing it in the focus of an ordinary metal basin. Only you will have to send it not to the satellite, but to the base station, having previously found out exactly where the latter is located.