about dbm/200khz problem..

super

Dear all :
5 W% K# K" I' A" I% G  p! V0 u3 k, p               The doc spec write as below ,
                   Frequency         Emission Level
. H: y7 w0 X# ^- v                2Mhz to 50Mhz    -30dbm/200khz
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2 U, b% W" v& x+ ~' y6 \: @             1. what's it mean ?
- K6 o( v1 L2 r/ H4 N             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 )

" W# N  u! O" o" F" K
' D3 `/ {: ?6 g              Thanks.

cqmyg5

I'm not an expert, I think "set RBW=200khz  and measured spurious below -30dbm is pass" is correct.
! F# c: [. x8 ?7 q* A. i7 [# h- yI 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 ,
) W2 X& u- j$ W2 j! 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.
, D0 |6 Z! A2 r# ^. S              Right ?

          2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.
( v' S" Y* T: k- v3 K( g0 N4 {             If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm
. R3 F! E% I# `" {7 H             and unit also different.
" K9 L2 Q: ]8 \* m- `6 A             I don't know which part is wrong ?
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           Thanks.