about dbm/200khz problem..

super

Dear all :
3 E# G% ^8 ?+ _, k* P               The doc spec write as below ,
                   Frequency         Emission Level
$ |3 F, m; S& f8 r                2Mhz to 50Mhz    -30dbm/200khz
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             1. what's it mean ?
             2. How should I do when I measure spurious use Spectrum Analyzer ?
            (ex: set RBW=200khz  and measured spurious below -30dbm is pass ?
                   or others )
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$ R) E- k5 o. I! e% S: U- i5 c              Thanks.

super

Dear sir :
1 O4 o, n4 o) E9 `9 \* V           Thanks your reply.
            To confirm again ,
1 e1 u0 c0 s  g# o6 R8 a( v          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.
              Right ?

          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
% X0 y, g' z! t/ O             and unit also different.
7 \( P3 {; |1 V& A  H             I don't know which part is wrong ?
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5 I0 [6 z0 w! E6 A( p9 D2 J5 }$ @           Thanks.

cqmyg5

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