Viavi 3900 Series Operation Manual page 209

6. 7. 3. A Fi el d Defi ni ti o ns
6. 7. 3. A. 1 OB W Fi el d
Th e O BW field d efi ne s th e pe rc en tag e of a s ig na l's p o we r o ve r w h ich O cc up ie d
Ba n dw id th me a su rem e n ts a re pe rfo rm e d.
6. 7. 3. A. 2 OB W P wr
Th e O BW Po w er m ea su re me n t in dic ate s the p ow e r le ve l of th e s ign a l ac ro ss the
O cc up ied B an d wid th .
6. 7. 3. A. 3 OB W BW
Th e O BW Ba nd w idt h m e as ur em e nt ind ica te s t he am o un t o f B a nd w idth o cc up ied b y th e
pe rc en tag e of sig na l p ow e r a s d ef ine d b y the O B W fie ld.
R a di o T e st Ins tru me nt s
OBW Power
OBW Bandwidth
F ig . 6 -55 S p ec tru m An a lyz er - O cc up ie d B a nd w idth a t 7 5%
6 - 51
. of Signal Power