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樓主 |
發表於 2009-5-24 19:41:10
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Dear sir :7 o& K: A2 C' Q2 I: s* V1 r
Thanks your reply.8 U" \) o* `0 ]/ _. n
To confirm again , / M; Z0 h$ {& t! i9 r2 Q, X& |
1. It means when I measure use Spectrum Analyser I need to set
& l6 g1 W; Q, `8 m V RBW=200Khz start=2Mhz stop=50Mhz,3 f4 l* D2 J9 \7 l9 u
if measured power level >-30dBm then it's fail , <-30dBm it's pass.. W. `& K S. d/ H; [0 f
Right ?3 F1 I+ s& Z' P9 h
! U( h2 O% a. k) j. _. B 2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.2 p4 O% R. C/ R# x1 r. E& V1 r$ M
If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm9 G5 w2 z0 { Y6 X) E$ W- ]
and unit also different.
_- n* L" Y, Y3 }8 V$ b I don't know which part is wrong ?1 e# ?5 T& I9 d
, r# m& ]2 u6 L4 `2 t; Z Thanks. |
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