about dbm/200khz problem..

super

Dear all :
               The doc spec write as below ,
                   Frequency         Emission Level
% H7 i. ?6 k7 K/ P; G/ k# Z4 J                2Mhz to 50Mhz    -30dbm/200khz
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2 B6 b1 ^2 z9 T3 @5 V             1. what's it mean ?
/ G% |1 M7 Z( H/ \; c) h             2. How should I do when I measure spurious use Spectrum Analyzer ?
- ^' l' c- R+ K2 }) ^            (ex: set RBW=200khz  and measured spurious below -30dbm is pass ?
                   or others )
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              Thanks.

cqmyg5

I'm not an expert, I think "set RBW=200khz  and measured spurious below -30dbm is pass" is correct.
4 p* T+ M" I: SI know another spec: -40dBm/1MHz, that's to measure dBm per 100k(RBW=100k)., then sum(10), if below -40dBm is pass.

super

Dear sir :
           Thanks your reply.
            To confirm again ,
* u) M4 [7 ?$ K0 R          1. It means when I measure use Spectrum Analyser I need to set
              RBW=200Khz start=2Mhz stop=50Mhz,
             if measured power level >-30dBm then it's fail , <-30dBm it's pass.
& h5 f0 \$ A* R$ B* K9 }              Right ?

2 l$ K2 r- l4 ^' z/ z& `9 I% v          2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.
             If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm
" k* J8 D. s: W/ b) s& |             and unit also different.
             I don't know which part is wrong ?
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* u: S6 F& p3 x8 p$ C% U           Thanks.