Prague’s Metro Now Fully Connected to the Mobile Network

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The Prague Public Transit Company (DPP) and its partners O2 Czech Republic, T-Mobile Czech Republic, Vodafone Czech Republic and CETIN are proud to announce that the deployment of the 4G LTE mobile network is now complete in all 61 stations and 63 km of tunnels that make up Prague’s metro system.

180 Minute Installation Window

All work on the installation of the LTE network has had to take place during regular nighttime subway closure times, which last for approximately three hours.

However, network installation couldn’t be done every night as priority has to be given to essential reconstruction and repair work to stations and tunnels plus all of the other activities necessary to maintain the full operability of the metro system.

To install this special radiating type of coaxial cable, it was first necessary to drill and insert plastic clips into the tunnel walls. These plastic clips are used instead of metal ones in order to eliminate the risk of signal interference.

Up to 2,748 Meters between Stations 

The speed with which the new LTE network can be installed between stations has been highly dependent on the amount (length) of cable that needs to be installed. The shorted section of tunnel runs between Muzeum and Hlavním nádraží (425 meters) and the longest section runs between Nádraží Holešovice and Kobylisy (2,748 meters).

It took at least 50 hours to establish a 4G LTE network in one station; and, installing the network cables in both directions of the tunnel between any two stations took approximately 2 months.

 

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