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樓主 |
發表於 2009-5-24 19:41:10
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只看該作者
Dear sir :8 Y/ Z+ S5 T# ]+ n+ g
Thanks your reply.
: H8 B. I6 P: b- n. d1 s* T To confirm again ,
8 k/ b" c6 Z4 ]5 M 1. It means when I measure use Spectrum Analyser I need to set
. X" ?+ u$ y9 I RBW=200Khz start=2Mhz stop=50Mhz,
- z+ }0 R7 X3 y if measured power level >-30dBm then it's fail , <-30dBm it's pass.
1 g$ |& N8 W6 b( {) D5 }/ B Right ?- V$ T6 \0 X( Y4 ^& l
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2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.) y3 q8 E3 c3 ~* l- a. q0 Z
If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm
$ Z) ?" I3 _' E$ f% a8 Z) ^, k and unit also different.5 y& W1 @* [% m
I don't know which part is wrong ?3 J% Y3 k: w9 a6 }% C; K
" ~* D: b! c, A7 T' o9 a Thanks. |
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