Viavi 3900 Series Operation Manual page 314

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8. 3. 7. A. 6
S et Lo w F re qu en cy/ L o w Bu tton
Pr es sin g eith e r th e S e t L ow F re q o r th e Lo w Bu tto n po pu la tes th e L o w Fre q ue nc y F ie ld
w ith the cu rre n t R F Ge n era to r F req u en cy . Th e fiel d d oe s no t u pd at e if the d ete ct ed R F
G en er ato r F re qu en cy is gr ea ter th an or eq u al t o th e Ce n ter Fr eq ue nc y.
low f req ue n cy = l ow er ra ng e va lue o f re ce ive r o pe ra ting fr eq ue nc y ba nd w idth
8. 3. 7. A. 7
Lo w D el ta Fr om Ce nte r
Th e Lo w D elta fie ld dis pla ys th e diff ere nc e be tw ee n the C en te r F re qu en cy a nd th e L ow
Fr eq ue nc y (c en te r fre qu en cy - low fre qu en c y = lo w d elt a). T h is va lu e is d isp lay ed in k Hz .
8. 3. 7. A. 8
To tal Ban d wi d th
Th e To ta l BW f ield di sp lay s th e su m of th e Hig h De lta an d Lo w De lta v a lue s (h ig h d elt a +
low d el ta = to ta l ba n dw id th) .
8. 3. 7. A. 9
P erc en t N on -sy mmetr y
Th e Pe rc en t N o n-S y mm e try fie ld dis pla ys th e v a rian ce b etw e en th e Hig h D elta a nd L ow
D elta in th e f orm o f a p erc en t.
8. 3. 7. A. 10
Res et S of t K ey
C lea rs all f ield s on th e ti le.
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3 90 0 O pti on al Fu n cti on s
Center
Low
High
Low
High
Delta
Delta
Total
Bandwidth
F ig . 8- 32 S ele c tivity G e ne rat or - Illu str ate d Wav ef orm
8 - 30
Frequency

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