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樓主 |
發表於 2009-5-24 19:41:10
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Dear sir :+ j0 R4 E) Q$ x" P
Thanks your reply.
4 D& i) s) h# d. k To confirm again ,
( w" z9 D6 f3 u- L- c 1. It means when I measure use Spectrum Analyser I need to set 4 U; r; B+ g& H" W( q
RBW=200Khz start=2Mhz stop=50Mhz,9 l( ?; K0 R- R# c" z: W
if measured power level >-30dBm then it's fail , <-30dBm it's pass.8 v3 n- l+ L& z- P( T6 b
Right ?
6 i( }/ N$ z4 I; f: ^$ M, \7 F" N) D" t$ V) Y1 w& g
2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.: s- F! B' x. A( |
If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm2 c* {+ h$ B% l3 [4 W
and unit also different.. H4 R; S8 l' ?1 H" R
I don't know which part is wrong ?/ i( | ]+ g6 r3 \2 Q- Z
) P% {/ d5 I% q4 w3 v Thanks. |
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