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樓主 |
發表於 2009-5-24 19:41:10
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Dear sir :, _4 x5 W* V; B3 b. ~ O
Thanks your reply.
( T$ V. X3 N8 G4 J' C- F% q To confirm again ,
4 D6 d' [: ], m: u* W/ q 1. It means when I measure use Spectrum Analyser I need to set " N/ _% i7 N2 ?
RBW=200Khz start=2Mhz stop=50Mhz,
/ V, K- O& v, s2 b* f( w' E1 e if measured power level >-30dBm then it's fail , <-30dBm it's pass.
* L$ G$ T9 C$ o$ ]! e Right ?' G. O4 t7 { ]/ G9 P" N
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2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.8 u2 _8 Y9 y7 P P" \* D: ^( p
If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm
6 j/ F9 H' ?' x6 { and unit also different.9 a$ D0 ?# @3 g7 b
I don't know which part is wrong ?3 B2 R1 u1 t! V/ u/ u
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Thanks. |
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