Follow us also on social networks >>An end to the mess of unavailable, low-quality or dropped signals in the trains of the national carrier?Maybe yes.Passengers on Czech Railways trains can look forward to high-quality mobile signal coverage throughout the journey.ČD – Telematics has equipped the selected railjet set with a mobile signal repeater, which will enable the use of high-quality voice and data services along the entire route.The unit of the national carrier equipped in this way entered a six-month test operation."I believe that the test operation will be successful and in the foreseeable future we will be able to secure financing for the serial installation of repeaters in other comprehensive long-distance transport units.After Germany and Austria, we will thus be the third country in Central Europe where good availability of a mobile signal for telephone calls and data transmission inside trains will become a matter of course.This will also strengthen the competitive advantage of Czech Railways and railways against individual motorists," commented the Chairman of the Board and CEO of Czech Railways Michal Krapinec on the news.České dráhy will deploy a railjet unit equipped with a mobile signal repeater on the busy Ex3 long-distance line from Prague via Brno and Břeclav to Vienna and Graz.Passengers will recognize a set with an installed repeater thanks to the information posters inside the car.The so-calledthe repeater can provide signal coverage for up to four individual coupled cars and can handle 5G networks as well.But each of its installations is specific."The technical parameters of the repeaters must be optimized for the conditions of each vehicle, so that there is no unwanted interference with the external environment, and the installation requires an individual technical solution for each type or version of the railway vehicle and a separate type approval by the Railway Authority," emphasizes Tomáš Businský, a member of the ČD Board of Directors - Telematics.The entire solution consists of an external broadband antenna (700-5000 Mhz) supporting the transmission of GPS information, the repeater itself, which as part of the test will work in the frequency bands of 800, 900, 1800, 2100 and 2600 MHz, a GSM-R attenuation filter to ensure trouble-free operation of the railway security system (GSM-R/ETCS) and the internal infrastructure on board the train ensuring signal distribution.In the case of the tested railjet train of the Czech Railways, the technology of so-called radiating cables is used, however, the solution itself allows for the eventual use of internal antennas.Such a configuration is especially suitable for trains and train sets, whose internal equipment or the material used do not allow signal distribution using a radiating cable.ČD previously started testing special windows for a better signal.A fan of technology ever since he was a small boy giving orders to the Lemíks on the "two-eighth".He still keeps an old and apparently indestructible OnePlus2 in backup, but… more about the authorPlease enable javascript to load commentsOnly fill in if you are not humanThe largest Czech magazine focused on the Android operating system.Follow us also on social networks >>