The Office of Electronic Communications has been preventing illegal installations of the so-calledGSM / UMTS / LTE signal repeaters (repeaters).Because their incorrect installation disrupts the operation of the base stations.Recently, UKE has started cooperation in this area with the Allegro.pl auction site.The result of these actions is a change in the regulations, which prohibits the sale of amplifiers without a note about the consequences of illegal installation.Cellular signal repeaters / amplifiers are a popular solution that home-grown "specialists" reach for.Unfortunately, hardly anyone is aware of the harmful impact of these devices on the operation of base stations.Incorrect installation of such equipment causes an increase in interference (ie noise) generated by the devices whose signal is amplified by the repeater.Therefore, only operators who have a license to use certain frequencies are authorized to install them.UKE's cooperation with Allegro resulted in a change in the regulations of the auction site.From now on, the following information must be included in the description of offers in the category "GSM accessories" - "Antennas and amplifiers".It is forbidden by law to install and use GSM / UMTS / LTE repeaters, also called repeaters, by unauthorized persons.Only mobile network operators have the right to install such devices.Failure to comply with the above may be considered an act subject to a fine, and in the case of persistent action, a penalty of restriction or imprisonment for up to 2 years.If the seller does not comply with this point of the regulations, the administration of the portal will delete his auction.Until October 25, 2018, this was the case with approximately 560 offers.The first thing you should do is report the problem to your operator.This type of information is then passed on to network development departments.If you're lucky, you might not need to build a new base station.Quite often, operators can "tune up" the range of the base station by adjusting the angles of the antennas.When you report a problem to the operator, you can use the information provided by the Speed ​​Test mobile application.There is another way to troubleshoot poor coverage.Here, a service called Wi-Fi Calling, i.e. calls via Wi-Fi networks, will come in handy.It works on selected Android smartphones and virtually all iPhones.The service can be used by Play, T-Mobile and Orange customers.The "orange" customers are in the best situation, because the operator has prepared an application that allows the use of Wi-Fi Calling on almost any Android smartphone.If you have a problem with mobile Internet, this is where the "Home LTE Internet" kit with an external antenna can help.It works much better than a standard LTE router placed inside the building.We must remember that walls and windows damp radio signals quite strongly, so an external antenna is often enough to solve the problem with the range.If the Wi-Fi router delivered with such a set does not cover the entire apartment or house, you can use Wi-Fi repaters.Unlike GSM / LTE repeaters, their independent installation is fully legal.