Comments on: ATM cards will become demagnatised if you put them with your Octopus. http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/ Tue, 31 Aug 2010 21:04:50 +0000 hourly 1 http://wordpress.org/?v=3.0 By: Ronnie http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/comment-page-1/#comment-231 Ronnie Thu, 19 Nov 2009 06:36:47 +0000 http://www.7amazingpeople.net/?p=723#comment-231 Wow! Found this post while Googling for a guide on "How to Extract the RFID chip out of a card" because in Melbourne (where I live), we're finally getting an RFID public transport system. And as a daily user, and a technical enthusiast, I of course was interested in making the card even smaller so I can stick it inside my watch or some other object. But anyway, back on topic, nice blog (adds to RSS Reader). I personally think it's more likely your ATM card got demagnetised by an Octopus card reader and not the actual card itself. As you all know, Octopus works on the RFID system. Another application which implements RFID is store security. Dunno about HK, but in Australia, almost any store selling something decent will tag their expensive and easily stolen items with an RFID chip. Upon purchasing it, the cashier will deactivate the tag by waving it over a scanner. This system is most common in pharmacies, and I've noticed that the scanner at my local pharmacy has a sign that says "DO NOT WAVE CREDIT CARDS, OR MAGNETIC STRIPE OBJECTS OVER SCANNER" and a diagram. So I presume it might kill the magnetic data on the card. Of course, Octopus and this RFID reader probably use different frequencies, and I would presume Octopus uses less frequency and therefore a lower chance of demagnetising your card (store security requires up to 2 metre wavelength, Octopus etc. barely needs 15 cm) but maybe a particular reader you used had a burst of power or something which killed your ATM card. Wow! Found this post while Googling for a guide on “How to Extract the RFID chip out of a card” because in Melbourne (where I live), we’re finally getting an RFID public transport system. And as a daily user, and a technical enthusiast, I of course was interested in making the card even smaller so I can stick it inside my watch or some other object.

But anyway, back on topic, nice blog (adds to RSS Reader). I personally think it’s more likely your ATM card got demagnetised by an Octopus card reader and not the actual card itself. As you all know, Octopus works on the RFID system. Another application which implements RFID is store security. Dunno about HK, but in Australia, almost any store selling something decent will tag their expensive and easily stolen items with an RFID chip. Upon purchasing it, the cashier will deactivate the tag by waving it over a scanner. This system is most common in pharmacies, and I’ve noticed that the scanner at my local pharmacy has a sign that says “DO NOT WAVE CREDIT CARDS, OR MAGNETIC STRIPE OBJECTS OVER SCANNER” and a diagram.
So I presume it might kill the magnetic data on the card. Of course, Octopus and this RFID reader probably use different frequencies, and I would presume Octopus uses less frequency and therefore a lower chance of demagnetising your card (store security requires up to 2 metre wavelength, Octopus etc. barely needs 15 cm) but maybe a particular reader you used had a burst of power or something which killed your ATM card.

]]> By: Eunice http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/comment-page-1/#comment-196 Eunice Tue, 13 Oct 2009 13:52:55 +0000 http://www.7amazingpeople.net/?p=723#comment-196 megan, i love you. i swear. and that godzilla thing was just total pervyness. you WANT godzilla to look at you 'lustfully'?! my gawd, woman. and wth. godzilla is a mutant dino. how the heck does he climb ifc? geez. haha. i just googled godzilla and damn, he's ugly. megan, i love you. i swear.

and that godzilla thing was just total pervyness. you WANT godzilla to look at you ‘lustfully’?! my gawd, woman.

and wth. godzilla is a mutant dino. how the heck does he climb ifc? geez.

haha. i just googled godzilla and damn, he’s ugly.

]]> By: JJ http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/comment-page-1/#comment-176 JJ Thu, 08 Oct 2009 09:55:04 +0000 http://www.7amazingpeople.net/?p=723#comment-176 Dude you could've walked to Central then up the escalators ;P I'd've done that xD Lmfao way to go Arthur xD Dude you could’ve walked to Central then up the escalators ;P I’d've done that xD Lmfao way to go Arthur xD

]]> By: meg http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/comment-page-1/#comment-175 meg Thu, 08 Oct 2009 08:31:23 +0000 http://www.7amazingpeople.net/?p=723#comment-175 arthur, you've just destroyed the whole purpose of my blog in one sentence. =( i'm glad my misfortune entertained you guys, lol. arthur, you’ve just destroyed the whole purpose of my blog in one sentence. =(

i’m glad my misfortune entertained you guys, lol.

]]> By: Tiff Z http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/comment-page-1/#comment-174 Tiff Z Wed, 07 Oct 2009 15:33:53 +0000 http://www.7amazingpeople.net/?p=723#comment-174 HAHAHAhAHAHAHHAHAHA.... well done?? the drink sounds nice.................. HAHAHAhAHAHAHHAHAHA…. well done??

the drink sounds nice………………

]]> By: mart http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/comment-page-1/#comment-173 mart Wed, 07 Oct 2009 15:26:19 +0000 http://www.7amazingpeople.net/?p=723#comment-173 ahhahahah HAHAHAHHAHAHAHAH that was very entertaining. i like your style. of your writing. :) ahhahahah
HAHAHAHHAHAHAHAH
that was very entertaining. i like your style. of your writing.
:)

]]> By: Arthur Lee http://7amazingpeople.net/2009/10/07/atm-cards-will-become-demagnatised-if-you-put-them-with-your-octopus/comment-page-1/#comment-172 Arthur Lee Wed, 07 Oct 2009 14:12:43 +0000 http://www.7amazingpeople.net/?p=723#comment-172 hahaha. that sounded like an unfortunate day. if you'd like me to be annoying i can say- octopus uses an RF chip - and not magnets :D but i store my octopus card and my ATM card near each other so....i hope nothing screws up :S hahaha. that sounded like an unfortunate day.
if you’d like me to be annoying i can say- octopus uses an RF chip – and not magnets :D
but i store my octopus card and my ATM card near each other so….i hope nothing screws up :S

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