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DTAC denies its mobile signals interfere with BTS skytrain's traffic control system

Jun 26. 2018
File photo
File photo
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By The Nation

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Total Access Communications (DTAC) has denied that its mobile frequency band has interfered with the automatic traffic management system of the BTS skytrain.

Prathet Tankuranan, deputy CEO of DTAC, said on Tuesday that TOT telecommunications company licensed the 2,300 MHz bandwidth to DTAC and it did not emit signals beyond the allocated bandwidth.

Prathet said DTAC engineers are working closely with Bangkok Transit System (BTSC), the operator of the skytrain, to try to isolate the radio frequency interference.

Prathet made his comments after Anat Arbhabhirama, director and adviser of BTSC, said on Monday that a problem has been caused on the skytrain by radio frequency interference, especially at the busy Siam station.

A Chulalongkorn University engineering lecturer has hinted that the inference might be caused by the 2,300 MHz bandwidth mobile signal because skytrains use 2.4 GHz and 5 GHz radio signals for WiFi communications in the automatic traffic management system.

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