(Question) NFC Transmission Distance

---

Really sorry if this post offends anyone. I have checked this section of the forum plus google search to answer my query without any luck.

My question is: Is there any way to extend the NFC Transmission Range? I have recently bought a battery case for my HTC One X and it adds half a centimeter to the phone which NFC can't transmit through (I understand this could be interference with battery if the battery if located behind NFC Sensor. I only need an extra centimeter (maybe even half a centimeter. I've looked in app market and can't find any NFC signal/transmission/booster app. Don't even know if possible. But just thought I would ask my good friends at XDA. If not no big loss.

Thanks

As far as I'm aware, there would be no way to extend the range other than adding your own antenna extension. This would obviously require taking apart your One X.

OK, thank you very much for your answer.

Sent from my Nexus 7 using Tapatalk 2

Why would this offend someone? j/c

Sent from my SAMSUNG-SGH-I747 using xda app-developers app

The battery case (which has metal in it) is likely acting as a shield.

NFC transmission distance is highly variable. When reading smartcards it's only a centimeter or so. When in card emulation mode it depends on the reader - most payment terminals only have 1-2cm range. However, a larger reader (such as the ones at the gates where I work) have 1-2 foot range.

I thought that it could be because of the battery but wasn't completely sure. Great piece of information though. Thanks

@Irish.iolar I'm pretty clued up with many things technology wise, but there are still millions if not billions of things I'm either totally clueless about or unsure off. And everything I have learned has been through reading, searching (self-taught) or thanks to the great people on this forum. I have tried searching the usual places for this bit of information and was surprised to find so little on it to be honest. The reason I usual start when asking such a question like the one in this topic is because I have seen countless people being flamed etc for similar questions. And I'm not talking about "billy" I no nothing about tech but got my new device and I'm gonna just ask something we deem silly. I'm talking about other guy/gals with some experience getting slammed. "But if you don't ask?"

I would have thought the top of the phone would have been a better place for the NFC chip but maybe space re-straights. Will just have to take phone out of case when I need to NFC something.

Thanks for all your help and useful comments.

Your friendly XDA member.

Phil

On the HTC One X, where are the antennas? Are they built into the battery, the phone, or the back phone cover? On my Nexus S, they're in the phone's back cover. If you buy an extended battery for the Nexus S, you have to make sure the battery cover has NFC antennas, or your range is really, really bad.

You can use nfc on the screen side of the phone