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! L! ]+ A9 W5 t# a6 i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。* m6 ]- f7 A! V) x5 _
Passive tags used with Frequency Hopping Tag Reading systems operating in Section 15.247.
: y4 E% G7 \: e, i7 N7 oFrequently Asked Questions
6 M( c( G1 A1 r0 M8 l9 fQ: Is a passive tag subject to Certification? q3 F( h. Y4 C6 Q4 N# `
A: No, a passive tag does not contain batteries and by itself is not authorized.
1 _7 D6 }5 y7 N9 A9 ^6 t1 g6 ^( pQ: Are passive tags tested for Certification?
: J8 I) C% ~9 f7 {- b! |" qA: No, only the tag reader needs to be tested. At this time, the current technology for passive; O- v! I2 K8 v- M0 P7 S
tags is such that the emission levels from the passive tags are much lower than the allowed levels; r& q/ L) ]: A, `! M" u
for the tag reader. However, even with the low emission levels, the fundamental passive tag
# O4 @3 x ^+ q& Nemission(s) may not operate within a restricted band just as the tag reader is prohibited from
3 k4 L! m2 @# g) [/ E% noperating in a restricted band. The tag reader receiver should never include restricted band {+ C1 Y) u) _; N( Z! K2 W
frequencies. |
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