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#1
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Does anyone know about Network Rail's proposed GSM-R in-cab radio
system? It's meant to be based on GSM, but seems to require many more, and much bigger, masts. GSM masts, which typically are no more than 15 metres (49 feet) high, have a theoretical range of up to about 35 kilometres (22 miles). So one mast could in theory cover a total distance of 70 kilometres. GSM-R masts are more than twice as high (33 metres or 108 feet) and Network Rail wants to place them on average 7.9 kilometres (4.9 miles) apart. Can anyone explain this, please? Chris |
#2
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![]() theoretical range of up to about 35 kilometres (22 miles). So one mast could in theory cover a total distance of 70 kilometres. As you said, its theoretical range so maybe they want to ensure that they get good reception as train safety may be an issue. Maybe post this to the Nortel newsgroup (if its still going) as I think Nortel maybe providing the BaseStations for this but dont quote me on it. |
#3
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![]() theoretical range of up to about 35 kilometres (22 miles). So one mast could in theory cover a total distance of 70 kilometres. As you said, its theoretical range so maybe they want to ensure that they get good reception as train safety may be an issue. Maybe post this to the Nortel newsgroup (if its still going) as I think Nortel maybe providing the BaseStations for this but dont quote me on it. |
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