RFID Help

http://data-acquisition.globalspec.com/SpecSearch/Suppliers/Data_Acquisition_Signal_Conditioning/Data_Input_Devices/Radio_Frequency_Identification_Products?SrchItem=11&frmqry=rfid%20module

Hi Steve,
I`m a little bit confused about your 50MHz-LED as RFID`s are radio frequency based and no optical tx-systems - can you explain ??
Thanks, Uwe

Hi, this is not a optical Tx-system, is a radio frequency system and have a uplik and down link. I want to begin a RFID project in UHF frequency(915MHz range) for more reach.

Regards,

I know that its a radio frequency system and not optical - but whats your 50 MHz LED for ??
Regards Uwe

It becomes something of a confusion factor when the originator seemingly changes (his) gameplan midstream.

Not otherwise defined, but can only guess that he wants an LED display (yes/no, or whatever).

915 MHz will not achieve "more distance" over 50 MHz.

When anyone wants to do this kind of thing where they are obviously looking for no-license requirement: they need to digest FCC CFR and determine a frequency allocation where it is allowed (and with max. power limitations, along with mode type, bandwidth, etc.). Not to forget about staying within the limitations of antenna configuration. Typically, there are those who seemingly at some point would want "more range" and then would want to do it with the antenna array/height/etc. We should all be aware of this and not to suggest without the research reference. The (originator/user) should be clear on this. No one should place themselves in dutch with the cognizant federal authority (US=FCC).

In designing any transmitting system, it is essential that all parameters be assembled first, and then go from there, finding the allowed-for allocation permitted.

At this point, there's not much else can/should be said. Back to the Originator.