back to article CDMA Verizon iPhone 4 contains GSM chip

The Verizon iPhone 4 contains a radio chip capable of connecting to both CDMA and to GSM networks, a detailed autopsy of the device has revealed. The take-apart was conducted by and exposed the presence of Qualcomm's MDM6600 chip, a part that supports both types of cellular technology when connected to appropriate …


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  1. uhuznaa

    Very obvious

    A while ago there was a video of an alleged iPhone 5 floating around the net. It looked identical to the Verizon iPhone, including the antenna gaps in the same places, just with a SIM slot. Might be safe to assume now that this will be the next iPhone.

    Certainly good news for iPhone 4 owners, because even with new chippery inside (dual-core CPU?) and CDMA/GSM capabilities the phone will be (and look) very much the same and such the iPhone 4 won't look "old". Apple did the same with the iPhone 3G and 3GS. Helps a lot not to devaluate quite new but essentially obsolete hardware.

  2. Anton Ivanov
    Thumb Down

    Yeah... Right...

    Quote: there's technically nothing to stop Apple incorporating a second, GSM-tuned antenna too,

    Not in this form factor. The entire space usable for antennae is occupied now, rest is glass. If they go back to a plastic/metal back - maybe. Then they can etch it as a part of the back cover.

    That however will be perceived as step backward in "shiny-ness" so I do not quite see that happening.

    1. Anonymous Coward


      What's to stop them using 1 aerial and incorporating a trap? That would allow them to just use the same design as the iphone 4 (perhaps with a lacquer coating?)

      (For the non-RF minded, a trap in an aerial is a tuned circuit, allowing an aerial to appear a different length at different frequencies.)

  3. JaitcH

    "nothing to stop Apple incorporating a second, GSM-tuned antenna"

    No need to, GSM can piggy back on the CDMA antenna and the degraded signal will be little worse than a Lemon 4, which everyone will remember, didn't stop iPhans from buying it.

    Maybe they could deposit an antenna on the glass.

  4. Anonymous Coward

    CDMA you mean CDMA2000!!

    Sorry to be a pedantic sod! but UK uses W-CDMA and US CDMA2000. CDMA just means the modulation type.

    1. Anonymous Coward

      Which network?

      Which UK network uses CDMA? I'd love to know

      1. Anonymous Coward

        its called W-CDMA

        All the networks that have 3G in the UK, its called W-CDMA.

  5. Kevin (Just Kevin)

    CDMA vs CDMA2000 vs GSM vs W-CDMA

    To clarify - CDMA is an encoding technology. In the 2G days, GSM used TDMA and Qualcomm's CDMA kit used CDMA. Therein starts the problem - CDMA is a brand name AND a technology.

    Enter 3G - 3GSM (or UMTS) used W-CDMA as its encoding (the W is "wideband"). The 3G version of the Qualcomm 2G CDMA is called CDMA2000 and also uses a CDMA encoding.

    On the subject of antennas - it's not about the technology, surely. You don't tune an antenna to CDMA or GSM (brand, not encoding). You tune it to a frequency. If you have an 850MHz CDMA network and an 850MHz GSM network, the same antenna should work fine for both. The difference is that _most_ 3GSM networks are on 2100MHz.

  6. Anonymous Coward
    Anonymous Coward

    @Micky 1

    "Which UK network uses CDMA? I'd love to know"

    All of them. W-CDMA is the basis of UMTS, aka GSM 3G.

    As AC said, CDMA2000 is the weird Verizon thing.

  7. Anonymous Coward
    Anonymous Coward

    Lotr ?

    One antenna to rule them all and in the darkness....

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