GSM-R frequencies, source: Eildert van DijkenĪs for the GSM-R network, it has the uplink frequencies between 876 and 880 megahertz as well as the downlink frequencies at 921-925 megahertz. These two frequencies are linked, they allow your mobile to receive and transmit at the same time,” he said. Actually, we have two different frequencies in a mobile network: for each connection, we have an uplink frequency (from your mobile phone to Base Transceiver Station) and a downlink frequency (from the antenna to your mobile). “What is actually going on with GSM-R frequencies? They are located right next to GSM 900 frequencies which start at 880 megahertz for the uplink and 925 megahertz for the downlink. From uplink to downlinkĪfter making some notes about the components of mobile network, Eildert van Dijken presented a detailed brief of the relationship between ordinary GSM and GSM for Railways (GSM-R). The following generations of mobile connections have other frequencies: 2100 megahertz for 3G, 2600 megahertz for 4G and 700 megahertz for the long-awaited 5G standard. Afterwards, the 2G standard was switched to 1800 megahertz band. It was the first band for GSM,” he noted. “Within the area of mobile technology, the 2G started a long time ago at 900 megahertz. Special attention was paid to the 2G standard of a mobile network. Mobile Frequencies, source: Eildert van Dijken Initially, the lecturer reminded about different mobile frequencies that are available to the customers and their development (see the picture below). So you can also understand why certain things are happening,” Eildert van Dijken started his presentation taken place on Wednesday, 22 April. “Usually I give the GSM-R course a whole day or even in three days but I try to give you some basics during these two hours.
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