ATC SIGNAL FREQUENCY SWITCHING FUNCTION USING 50HZ/60HZ COMMON TRANSCEIVER

摘要

PROBLEM TO BE SOLVED: To simplify a system configuration by using an ATC signal transceiver as a common transceiver even in a section in which an overhead line frequency is switched.

SOLUTION: A common ATC signal transceiver 105 which can cope with a plurality of modulation reference frequencies is employed. In accordance with the switching of an overhead line frequency of a feeding sorting office 101 in an overhead frequency switching section, an overhead condition switcher 103 of an ATC ground apparatus and a pilot switcher 104 automatically switch a pilot frequency, that is inputted in the common ATC signal transceiver 105, to an ATC signal frequency suitable for an overhead frequency after switching.

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