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正翻译步骤 17

步骤 17
The Qualcomm MDM6600 chip supports HSPA+ data rates of up to 14.4 Mbps and CDMA2000® 1xEV-DO Rev. A/Rev. B
  • The Qualcomm MDM6600 chip supports HSPA+ data rates of up to 14.4 Mbps and CDMA2000® 1xEV-DO Rev. A/Rev. B

  • You can view the datasheet for more information on the chip.

  • This is the same chipset as the Droid Pro world phone. It supports both GSM and CDMA—which means that Apple could have supported GSM!

  • Why didn't they? It may be that it was easier to design antennas for a CDMA-only phone -- this phone supports two cellular frequency bands, while Apple supports five bands in the GSM version.

  • Of course, there's no way it could be a real "world phone" without a SIM card slot.

高通MDM6600支持高达14.4Mbps的HSPA+数据速率和CDMA2000® 1xEV-DO Rev. A/Rev. B

有关芯片的更多信息,请查看数据表

这个芯片和全球手机Droid Pro一样,那台手机GSM和CDMA都支持-意味着苹果肯定支持GSM,但是刻意把它砍掉了

为何苹果砍了GSM呢?可能是因为设计只支持CDMA的天线更容易--这个机子只支持两个蜂窝频段,而GSM版支持5个

当然,没有sim卡槽的手机怎么可能成为真正的“全球手机”呢?

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