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3#

樓主 |
發表於 2009-5-24 19:41:10
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只看該作者
Dear sir :3 t. t' w. u d7 c
Thanks your reply.
) \ _+ F5 o8 y0 G4 ^, ?" Q( x To confirm again , 6 K. {, _& G1 l) S2 p3 j
1. It means when I measure use Spectrum Analyser I need to set
: M6 x; E$ G5 ?. ^5 u RBW=200Khz start=2Mhz stop=50Mhz,2 u9 b6 Q2 |- ^" N- w: G7 ?' ~
if measured power level >-30dBm then it's fail , <-30dBm it's pass.
6 i0 H& l7 W' @. t" r3 d Right ?
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4 |. G4 j+ e. L" K4 r4 P; g* a4 ^; i 2. But my boss tell me it's need below -70dbm not -30dbm , I don't know why.
' c2 r7 u+ w/ Z) v& b2 Q9 X& Z If I transfer it to dbm/hz is -83dmb/hz ,it become more severe than -70dbm
9 c H; x3 O8 Q* x6 d F$ U) ?. [ and unit also different.! b" n: m$ F4 W3 C" t6 V. ~
I don't know which part is wrong ?7 q. Z) S- A! w8 Z* F9 p
2 k$ b1 K% X6 ~ i2 `& e
Thanks. |
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