Have you seen any safety standards regarding cell phone usage that suggest limiting the time you hold the phone against your head while radiating your brain?
Have you read the warnings in the box that came with your 30mw wireless router? You should. There is a warning about how much distance you should place between yourself and the 2.4 Ghz signal.
Im assuming you know the max power level and frequency of your cell phonr.
Dont trust the government or industy with your health.. Standing close to a continous radio transmitter eight hours each day may have an adverse effect on your health.
Tracey
How is the RF or radio frequency generated that contains the data which is then feed to the antennas?
The RFID tag must be inside of an RF field. The tag uses the energy of a specific frequency to power its circuits. The RFID tag transmits its serial number or other data when inside the RF field which may be dangerous to work around .
Will you mind being bombarded by radio frequency while waiting in line? You do know don't you, that the RF in RFID means Radio Frequency and in order for the RFID tag to work, it must be present in a powerful radio field? Whereas a barcode is read by mere light, the technology of the RFID tag forces all customers in the check out lane, and the store employees to be exposed to potentially dangerous electromagnetic fields. Consider the staff at a Walmart distribution center. There are hundreds of lanes where trucks paark to unload. There will be many RFID scanners inside an all metal building. The people working there will have a high exposure level.
HAHA! I read the entire pdf about RFID at Cryptome, and no matter how hard Walmart and P&G try, they will never ever have 100 percent registration of each and every pallet, case, etc. WHY???? Because in those very pretty pictures within the pdf were examples of just how nicely the sometimes HUGE label had to be applied. Each label was perfectly straight, and located exactly away from metal on the products to which they were attached.
What I'm getting at is that in the real world, humans will never always place the RFID labels exactly in the right place! Never! And, did you notice the size of those darn labels??? They are huge, some of them!
To me, this looks like a huge failure about to happen at Walmart's vendors expense.
Here are reasons why these RFID labels will not work properly:
1. Radio interference from many sources. 2. Improper placement on item. 3. Damage due to many reasons. 4. Distance from antennas. 5. Failure of antennas to stay properly tuned.
These are just a few reasons.
Barcodes are better and heres why:
1. The barcode tags do not store personal data on them. 2. They cannot be read from a distance without the use of a laser whereas RFID could be read from wihtin your package as you walk wthin a mall, or store, and even from one vehicle to another with the right equipment. 3. Barcodes are already on everything, and require no additional expense to vendors. 4. There are no real advantages to consumers for each and every item to be remarked with an RFID tag vs a barcode that is already on the item.
But, to giants like Walmart, RFID tags are just ANOTHER way of tracking products. Barcodes are already used at all Walmart distribution centers to mark pallets and crates or boxes.
Lastly, if you read the industry notes, you'll learn that RFID tags are becoming smart tags, and they will begin to be much more than mere number transmitters. In the future, RFID tags will be computers with storage ability and that will make you a walking target for stores and companies to monitor as you walk within stores or malls, you will be tracked, and your purchases identified even by other stores who want to see what you purchased at another store.
Just say no, to RFID tracking before it gets out of hand.
Slashdot Mirror
Have you seen any safety standards regarding cell phone usage that suggest limiting the time you hold the phone against your head while radiating your brain? Have you read the warnings in the box that came with your 30mw wireless router? You should. There is a warning about how much distance you should place between yourself and the 2.4 Ghz signal. Im assuming you know the max power level and frequency of your cell phonr. Dont trust the government or industy with your health.. Standing close to a continous radio transmitter eight hours each day may have an adverse effect on your health. Tracey
How is the RF or radio frequency generated that contains the data which is then feed to the antennas? The RFID tag must be inside of an RF field. The tag uses the energy of a specific frequency to power its circuits. The RFID tag transmits its serial number or other data when inside the RF field which may be dangerous to work around .
Hmmm me thinks you complain too much. Are you involed in the RFID industry?
Will you mind being bombarded by radio frequency while waiting in line? You do know don't you, that the RF in RFID means Radio Frequency and in order for the RFID tag to work, it must be present in a powerful radio field? Whereas a barcode is read by mere light, the technology of the RFID tag forces all customers in the check out lane, and the store employees to be exposed to potentially dangerous electromagnetic fields. Consider the staff at a Walmart distribution center. There are hundreds of lanes where trucks paark to unload. There will be many RFID scanners inside an all metal building. The people working there will have a high exposure level.
HAHA! I read the entire pdf about RFID at Cryptome, and no matter how hard Walmart and P&G try, they will never ever have 100 percent registration of each and every pallet, case, etc. WHY???? Because in those very pretty pictures within the pdf were examples of just how nicely the sometimes HUGE label had to be applied. Each label was perfectly straight, and located exactly away from metal on the products to which they were attached.
What I'm getting at is that in the real world, humans will never always place the RFID labels exactly in the right place! Never! And, did you notice the size of those darn labels??? They are huge, some of them!
To me, this looks like a huge failure about to happen at Walmart's vendors expense.
Here are reasons why these RFID labels will not work properly:
1. Radio interference from many sources.
2. Improper placement on item.
3. Damage due to many reasons.
4. Distance from antennas.
5. Failure of antennas to stay properly tuned.
These are just a few reasons.
Barcodes are better and heres why:
1. The barcode tags do not store personal data on them.
2. They cannot be read from a distance without the use of a laser whereas RFID could be read from wihtin your package as you walk wthin a mall, or store, and even from one vehicle to another with the right equipment.
3. Barcodes are already on everything, and require no additional expense to vendors.
4. There are no real advantages to consumers for each and every item to be remarked with an RFID tag vs a barcode that is already on the item.
But, to giants like Walmart, RFID tags are just ANOTHER way of tracking products. Barcodes are already used at all Walmart distribution centers to mark pallets and crates or boxes.
Lastly, if you read the industry notes, you'll learn that RFID tags are becoming smart tags, and they will begin to be much more than mere number transmitters. In the future, RFID tags will be computers with storage ability and that will make you a walking target for stores and companies to monitor as you walk within stores or malls, you will be tracked, and your purchases identified even by other stores who want to see what you purchased at another store.
Just say no, to RFID tracking before it gets out of hand.