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* `7 g& L/ }4 I# ], C7 Y; Q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。% \2 F' C; W/ \% g) z
Passive tags used with Frequency Hopping Tag Reading systems operating in Section 15.247.
! F& v; i# l/ c' T1 ^/ Y# tFrequently Asked Questions8 @+ I1 g# N1 L6 @
Q: Is a passive tag subject to Certification?6 E& s8 C2 H2 }7 l2 }
A: No, a passive tag does not contain batteries and by itself is not authorized./ D6 z: G! q7 z6 O V+ M, z8 Z
Q: Are passive tags tested for Certification?
% ~0 z9 k+ D: n8 |A: No, only the tag reader needs to be tested. At this time, the current technology for passive# Q( B' f+ K* c: o
tags is such that the emission levels from the passive tags are much lower than the allowed levels! a, r" x, G- ^
for the tag reader. However, even with the low emission levels, the fundamental passive tag
3 G# y6 l9 u8 h$ k+ ]# Oemission(s) may not operate within a restricted band just as the tag reader is prohibited from' p; h% D$ I% I% X; t* W
operating in a restricted band. The tag reader receiver should never include restricted band9 H1 ?0 h& g2 W& ~
frequencies. |
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