Often I come across the fact that in the Kaluga direction I don’t catch 3G even with a car antenna. It turns out that there is a round, neat 3G hole! What is there inside?

For starters, I checked the 3G coverage of 3 operators:
Megaphone')
Mts
BeelineYou can see for yourself that the 3G operators have no coverage here.
Megafon 3G has the most dense 3G in this area, and I want to stick a circle here and find its center.

In the center of the circle is a rather characteristic object, it can be seen right on the MegaFon website, but Yandex gives permission higher.

By the way, Yandex folk cards consider that
the Garden Association is here.
Garden partnership with satellite dishes the size of a house, OK!
But here in Wikimapia there is already complete
chaos . Scorching military secrets and do not blush:

Well, in the
comments to the “Garden partnership” there is a party of former fellow soldiers.
Something tells me that we do not see 3G in the area.
PS: On the idea of a post, I was directed by publications in the media about the expansion of Moscow just in this zone, where 3G is not even expected.
PPS: All questions on military secrets to Yandex, Wikimapia and Megaphone.