How do ground staff, train crew, signalmen, and others communicate?

July 17, 2019, 2:25 PM
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Since about 1999, handled radio sets (walkie-talkies) have been issued to most drivers, guards, and other staff on the move. These handsets usually have a fairly short range (a kilometer or so). VHF radio sets have been installed in the loco cabs for a few important trains such as the Grand Trunk Express, Tamil Nadu Express, and the Rajdhanis and Shatabdis, for communication between the loco and station controllers.

Some systems like the Delhi Metro also use mobile radio systems for train communication; the radio system is integrated into the larger system of communication which includes optical-fibre communication between stations, etc.

Another method of wireless communication with train crew, MTRC, or Mobile Train Radio Communication, has been set up for trials in some places, including on the Nagpur-Itarsi, and planned to be set up on sections like Pune-Bhusawal. The older systems are analog; the newer ones are supposed to be digital and based on CDMA ttechnology. More recently [12/04] there has been talk of moving to GSM-R communications.

Source – IFRCA.org

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