[CQ-Contest] When RF is not your friend

[Pete Smith N4ZR]

I think like many things, "it depends".  The passive transponders in 
toll road Ezpass devices can be read from 20 feet at 35 mph or more.  
Twenty years ago, our NASA IDcards had RFID circuits in them that were 
read by sensors on either side of a 15-foot hallway, and used to limit 
access to some sensitive areas.

73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.

On 4/4/2014 7:26 PM, Scott wrote:
> We use RFID's extensively in veterinary medicineS(primarily for lost pet
> ID.  Our readers have to be within 6 inches of the pet RFID's to read
> them.  Other types may be more sensitive, though.
>
>
>
> On 4/4/14 5:49 PM, "Ron Notarius W3WN" <wn3vaw at verizon.net> wrote:
>
>> My understanding is that because the RFID circuits are passive, you have
>> to
>> get REAL close to someone to "read" the circuit/chip in the card.
>>
>> Is it possible?  Yes.  Probable?  Not really.
>>
>> I wouldn't worry about it.
>>
>> But, you can always wrap your wallet, or whatever holds your cards, in
>> thin
>> metallic foil.
>>
>> Hmmmm... maybe all those guys wearing the tin foil hats are on to
>> something
>> after all.
>>
>> 73, ron w3wn
>>
>> -----Original Message-----
>> From: CQ-Contest [mailto:cq-contest-bounces at contesting.com] On Behalf Of
>> Charles Harpole
>> Sent: Friday, April 04, 2014 4:23 PM
>> To: Contest Internet
>> Subject: [CQ-Contest] When RF is not your friend
>>
>> Question......... is it true that RFID chips in passports and credit cards
>> can be scanned and read by thieves walking past you?  If yes, how does one
>> foil that activity beyond using foil?
>>
>> thanks to you traveling contesters,
>>
>> Charles Harpole
>> k4vud at hotmail.com
>> 		 	   		
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