The huge part of the populated area of Russia is covered with base stations. In the fields they look like red and white towers and in the city they are hidden on the roofs of houses. Each station receives a signal from a cellphone at the distance up to 35 km and communicates with a cellphone via engineering channels and voice canals.
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A base station represents a couple of iron boxes locked inside a well-conditioned room.
An antenna of a base station has some sectors. The vertical one communicates with mobile phones, the round one connects the base station with a controller.
Each sector can support up to 72 calls at the same time. Each base station can support up to 432 calls. Cellular operators prefer to use more base stations to get better quality connection.
A box with 3D equipment looks like this:
A base station may work in three diapasons:
900MHz – long-distance signal;
1800MHz – shorter-distance signal;
2100MHz – 3G net.
An ordinary cellphone may send a signal at the distance 70km.
From the base station the signal is sent to the controller looking like this:
Depending on the equipment a controller may support up to 60 base stations.
A switchboard looks more interesting.
Each switchboard supports 2-30 controllers. It occupies a huge hall full of equipment and various boxes.
These cars are tenderly called “yozhiks” (“hedgehogs”), they move here and there and check the quality of the signals of their own mobile phone company and competitors.
They have antennas on the top ..
.. and various equipment inside …
This center controls the work of controllers and switchboards etc.
Activity of Moscow switchboards shown. At night people call each other much less.
FIRST!!
2nd
I want some of those monitors for my living room
I can sell you some, for 25$ each.
Photo #8 with bird nest in the microwave antennae had me thinking that if this bird lays eggs, they will be instantly hard boiled!
“Electrification will regenerate Russia.” Lenin (1920)
A. Bunka here. Didn’t work did it?
Actually it did.
“Electrification will Degenerate Russia.” Me (2010)
Just look at the American technology that we gave the world to improve civilization .
China the land of no freedom and cheap labor and shoddy buildings
China better be glad us Americans buy your cheap garbage from over there and give your commie government more power too not let the people of China be a free nation .
A. Bunka here. While communism was falling like so many dominos back in the eighties, George Bush went ahead and gave China most favored trade status. Now were all out of work. Great foreign policy huh? Now were stuck with a communist dictatorship with the power of a capaitalist powerhouse, a decision we will regret.
hory sheet
Russia have high quality cell network!
Careful what you wish for…..
Only chinese i know is number 74 on my menu. Chicken Curry fried rice. wery wice!
A. Bynka here. Chinese are already learning Enlish and English too.
It’s truth www’nytimes’com\20108\16\business\global\16yuan.html?_r=2&pagewanted=1&hp