about dbm/200khz problem..

super

Dear all :
               The doc spec write as below ,
& s9 L/ \% n; x& L                   Frequency         Emission Level
                2Mhz to 50Mhz    -30dbm/200khz
* I) @5 T" f* M" Q6 k; m
5 z4 `3 {" }/ _& W* b" K/ R             1. what's it mean ?
             2. How should I do when I measure spurious use Spectrum Analyzer ?
2 T1 s* U! }! Y- J+ G            (ex: set RBW=200khz  and measured spurious below -30dbm is pass ?
                   or others )
+ l4 m7 S9 L. \7 h
- Y) k2 u* V5 r& e  @. T
              Thanks.

cqmyg5

I'm not an expert, I think "set RBW=200khz  and measured spurious below -30dbm is pass" is correct.
2 h( ^/ t- d. H5 `I 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 :
4 O# Q, x5 U% a           Thanks your reply.
            To confirm again ,
( @8 n4 m/ E+ b          1. It means when I measure use Spectrum Analyser I need to set
7 t5 D' @* B! Y2 d5 [              RBW=200Khz start=2Mhz stop=50Mhz,
5 {# T) Y/ @0 k% n) R6 ]             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.
) w. k4 [7 b6 K% W; T             If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm
             and unit also different.
! ~4 |: K1 t# D3 y- Z5 U' x/ |. g+ a: J             I don't know which part is wrong ?

           Thanks.