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樓主 |
發表於 2009-5-24 19:41:10
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Dear sir :" P c0 X; N, `# M
Thanks your reply.; k# {& v2 S5 \. _# D3 ~- K
To confirm again , " G7 @6 C7 A# k. X" O& g/ v- K
1. It means when I measure use Spectrum Analyser I need to set * e1 C1 i( Y9 P, `: ]
RBW=200Khz start=2Mhz stop=50Mhz,
3 G; d9 N3 }- p4 I5 {4 v+ z if measured power level >-30dBm then it's fail , <-30dBm it's pass., P( _4 l! n! G( ^7 H* E% z" ^% J! _, x6 o+ }
Right ?
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" K# C: P0 O' U1 N! y 2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.& \' g1 t5 o7 B: p1 f
If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm
* r4 @9 _2 M$ |( s* s% q and unit also different.
; `1 {# R. J" A: n% T I don't know which part is wrong ?% [; h( U/ v2 o" |
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Thanks. |
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