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3#

樓主 |
發表於 2009-5-24 19:41:10
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Dear sir :
1 D2 K7 f2 G& k4 y( }! c" W Thanks your reply.
5 l! O' l V6 D+ \! Z To confirm again , 7 B* S1 S8 U C, O
1. It means when I measure use Spectrum Analyser I need to set 9 ~5 M5 L* A) Z5 X& m- |
RBW=200Khz start=2Mhz stop=50Mhz,4 r/ }4 X$ B5 p6 F8 r- E
if measured power level >-30dBm then it's fail , <-30dBm it's pass., i M) l7 M, u6 w- I
Right ?
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! {* t: i- v8 f' b* h8 } 2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.
2 u8 f2 b% o, p* O If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm$ { o5 w& [1 N/ m7 l
and unit also different.
( W" @* e2 A/ O2 r: F+ a, v. j I don't know which part is wrong ?1 a, @4 y: o2 l. N M. e) i- o
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Thanks. |
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