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[A380] TFTS

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发表于 2010-4-5 21:04:57 | 显示全部楼层 |阅读模式 来自: 中国天津
A340  的 TFTS 选装的

是个什么东西?

  ATA 23 章的 天线
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TAECO实名认证

发表于 2010-4-6 20:07:09 | 显示全部楼层 来自: 中国福建厦门
TFTS- Terrestrial Flight Telecommunication System,就是刷卡在飞机上打电话啊。
The Terrestrial Flight Telecommunication System allowed air travellers of the nineties to place
calls using handsets attached to the seats and paying with their credit cards. TFTS
provides a radio link between aircraft and ground stations which have access to
public fixed telecommunications networks. The radio system is similar to the cellular
systems of the land mobile service, although cells are wider (240 km) and reach
higher levels (10 000 m). Commercial demand for TFTS failed to sustain initial
expectations, probably due to the perceived high cost of the service and the lack of
the personalized features that users now enjoy in their personal mobile phones, and
the service has now ceased.
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