said by tiger72:said by Transmaster:Remember The iPhone like all other Smart phones has a software defined radio. I would think it would work on 1.7gHz with updated firmware. This is one area where Apple would have no need for a custom IC. Has anyone here had a chance to take apart an recent iPhone model, or have a clear picture of it's RF section. If we can get the numbers off of the transceiver chip we might be able to refer to a tech sheet to see what it will do.
It's not possible for a third party to modify the radio chipset. Moreover, for Apple to enable UMTS Band IV (assuming the radio even supports that band) in the United States, it would need to be re-submitted to the FCC for interference testing. And when that happens, everyone in the world will know.
I looked into the background of this story and this one makes since. The iPhone does not have be re-engineered to work with T-Mobil, and there is the German connection.
It doesn't need to be re-engineered. It just needs a new radio. That's correct. As for the German connection, that's been there for 3 years and has had 0 correlation to a TMO USA release in the past.
I tried to find the type acceptance certificate for the iPhone at the FCC and I failed. It may not even be available for public viewing. The FCC site has long been one of the worst Government sites on the web. The way their search engine works you practically have to know everything about what ever it is you are looking for already to find it.
Search engadget. There's a public FCC listing for every device - including the iphone. The FCC never tested UMTS Band IV on the iPhone4. If the iPhone4 supports AWS, it would have to be tested by the FCC.
It was tested, but it's currently being held under lock & key for 45 days.
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