(no subject)
Feb. 23rd, 2012 08:56 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
randomnessI finally got around to testing the Travelon RFID blocking passport case I bought months ago.
I took the case, shoved my CharlieCard into one of the card holder slots, and then tapped against the reader on a T ticket vending machine. No read, as long as the card was entirely within the case.
If it was a bit out of the case (more than a couple of millimeters) there was enough of the antenna out to confuse the machine. It gave me the "bad read, see attendant" error. If I had it out more than about 5mm, the reader recognized the card.
End on reads failed, which is also good.
Until I have an RFID reader handy--which is something I want anyway--this is the best test I can think of offhand.
I took the case, shoved my CharlieCard into one of the card holder slots, and then tapped against the reader on a T ticket vending machine. No read, as long as the card was entirely within the case.
If it was a bit out of the case (more than a couple of millimeters) there was enough of the antenna out to confuse the machine. It gave me the "bad read, see attendant" error. If I had it out more than about 5mm, the reader recognized the card.
End on reads failed, which is also good.
Until I have an RFID reader handy--which is something I want anyway--this is the best test I can think of offhand.
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(no subject)
Date: 2012-02-23 01:59 pm (UTC)(no subject)
Date: 2012-02-23 04:31 pm (UTC)Yeah, that ought to work too. I just wanted something a bit more protective.