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Signs associated with Radio Systems

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Oxford
This sign at Oxford station advises drivers of northbound Cotswold Line services to switch on GSM-R. (Photo taken 20 May 2006)


Caldicot
This sign at Caldicot marks the end of an area with full GSM-R radio coverage and the entrance to an area where the GSM-R Interim Voice Radio System (IVRS) is in use. (Photo taken 26 June 2012, by Dave Hugglestone)


Balloch
A GSM-R alias plate at Balloch, displaying the code "666". YD666 is the number of the next stop signal ahead, located three miles away from here. (Photo taken 6 May 2012)


Barnham
The sign below this car stop marker at Barnham displays information relevant to drivers setting up the Cab Secure Radio (CSR), including the area code ("49") and radio identification number ("0077"). (Photo taken 24 September 2010)


Banbury North
The sign alongside this disc shunting signal at Banbury North shows the eight-digit GSM-R telephone number, known as the "CT7 number". To contact the signalman, the driver should dial this number on the GSM-R control panel instead of pressing the "SG" button. (Photo taken 27 June 2013)