We have a small office, which we rent in Mr. Samara. For work 10 people need internet at least 20 Mbps. We turned to local communication providers - MegaFon, Air Telecom and MTS, so that they would provide us with their tariffs and connection costs. As a result, MTS and MegaFon asked for about 10,000 rubles. installation payment and 14 000 rub. monthly subscription fee, MTS approximately also, by Er-Telecom were more modest - 2,000 rubles installation payment and 7,000 rubles per month. At the same time, in our city for individuals Internet at a speed of 100 Mbps costs about 700 rubles. per month.
Such a large gap in the price tag for individuals and legal entities among providers has caused a brain break in us and we began to look for the most economical way. None of the providers wanted us to connect in non-residential premises at tariffs for individuals. Fortunately, ordinary houses are in direct view from us, where people enjoy the benefits of civilization for 700 rubles per 100 Mbps. The distance to the nearest house is about 800-1000 meters.
We decided to use a radio bridge based on
the Ubiquiti NanoStation M5 access point , which cost us about 9000 rubles. for a couple (at the old rate). We agreed with one of the tenants of the house (an acquaintance) that the provider will bring another cable to it, and we will place an injector for the antenna in it. The contract with the provider was drawn up for one of our employees and selected a tariff for 700 rubles. They decided to place the antenna on the roof of the house, the cable to the antenna from the apartment to the roof 40 meters long was laid for an extra charge of 1000 rubles to us by the same installers who came from the provider. The second antenna was placed on the roof of our office.

It is a lot of detailed instructions on setup, therefore I will not begin to describe them. The only thing is to turn off the airmax compacity, select the country USA, the channel width is 40 Mhz, and the PPPoE connection should be installed from the router (if you use the NanoStation as a router, the connection speed is low). It is also desirable to conduct a frequency scan and select the most free channel. Make the network hidden and do not associate the name with your organization so that Roskomnadzor does not come to you on the third day of work.
This design has been working with us for about a year. In any weather. Speed according to the speedtest of about 90 Mbps. Savings for the year amounted to about 50,000 rubles. And if you count at MegaFon tariffs, then all 150,000 rubles.