Viavi 3900 Series Operation Manual page 295

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3 90 0 O pti on al Fu n cti on s
8.2.4.
An alyz er OBW & P ower B et ween Mar kers Opt i on ( 390XOPT 064)
Th e A n aly ze r O cc up ied B an dw id th (O B W) a nd Po w er B e tw ee n M a rke r O pti on p ro vid es the
us er w ith ad de d fea tu res fo r e va lua tin g t he po w er of a r ec eiv ed s ign al. Th e Po w er
Be tw e en M ar ke rs fun cti on all ow s the u se r to ev a lua te the to ta l po w er lev el of a re ce iv ed
sig na l b et we en M a rke r 1 a nd M a rke r 2 on th e Ch a nn el An aly ze r a nd S p ec tru m An a lyz er.
Th e Po w er M e a su rem e nt (P wr :) is d is pla ye d u n de r th e D e lta M e a su rem e nt wh e n M a rke r 1
an d M ark er 2 are e na ble d .
F ig. 8-1 1 S pe ctr um A n aly ze r - Po w er Be tw ee n M ark er s M e as ur em e nt
Th e O cc up ied B an dw id th (O B W) F un ct ion m ea su re s t he fre qu e nc y b an d tha t c on ta ins a
sp ec ifie d p e rce nt ag e o f t ota l s ign al po we r, ce nte re d o n the a ss ign e d C e nte r F re qu en cy
(C F) . T he O B W fun c tion is en ab le d/d is ab led b y p re ss ing th e O B W T og g le B u tto n. W he n
en ab le d, the O B W P ow e r a nd B an dw id th m ea su re me n ts a re d isp lay ed o n th e A na lyz er
gr ap h.
F ig . 8 -12 S p ec tru m An a lyz er - O cc up ie d B a nd w idth a t 9 9%
8 - 11

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