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6 C3 S* J, s+ p这种产品就属于无源天线，FCC已经明确无源NFC天线无需认证，CE也如此。- V( J) N- I4 [) }1 b0 O
Passive tags used with Frequency Hopping Tag Reading systems operating in Section 15.247.
, [- r- B% M- X. w! SFrequently Asked Questions# d# O0 `# r; y; ?
Q: Is a passive tag subject to Certification?
- z! h" @* u2 _A: No, a passive tag does not contain batteries and by itself is not authorized.
# u# A* a- L" X& iQ: Are passive tags tested for Certification?$ @, E% }+ k8 y: n# {
A: No, only the tag reader needs to be tested. At this time, the current technology for passive
" Y. @ @0 X* J3 g9 Ltags is such that the emission levels from the passive tags are much lower than the allowed levels2 v: f, [+ ~9 s' D! t: ?
for the tag reader. However, even with the low emission levels, the fundamental passive tag
3 N5 N4 q/ h7 H d( {: Remission(s) may not operate within a restricted band just as the tag reader is prohibited from
4 j% N3 h. f' [operating in a restricted band. The tag reader receiver should never include restricted band% s" O' z5 y7 U- ~) |) L7 T
frequencies. |
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