Maxwell Lol wrote:

I know that. That's why I said


As I recall, you can read the information from a distance while a RFID
reader is ALSO reading your document (distance of inches).


The question was receive distance, and you persist in saying the receive
distance is on the order of inches, a statement rivaling the ludicrous
one saying that it would take the hundreds of Watts from a microwave
oven to radiate 20 feet.

These statements do not demonstrate the engineering chops required to
intelligently discuss the subject. I see no effort on your part to
learn, only to declare yourself right on the internet.

At those frequencies, atmospheric noise is about -90 dBm/Hz. Demonstrate
that the received signal level in the required bandwidth will be below
this at (say) 20 feet. Show your work.

Some else can check it, I have finished this conversation.

Kevin Gallimore






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