Viavi 3900 Series Operation Manual page 170

6. 3. 2. H ABS (Ab so lu te) F re qu en cy
Whe n Ab s is s ele c ted th e v a lue di sp lay ed in th e C F fie ld is th e rec eiv e d fr eq ue nc y.
6. 3. 2. I Rel (Rel at iv e) Fr eq ue ncy
Whe n R el is s ele cte d the v alu e dis pla ye d in t he C F f ield is re lativ e to the re ce ive d
fre qu en cy .
6. 3. 2. J S pa n
Whe n Ce n ter- Sp a n M o de is s ele ct ed , sig n al s pa n c an b e a dju st ed by se lec tin g a de fin ed
va lue fr om th e Sp a n d ro p-d o wn m e nu o r by s ele ctin g th e S p an da ta en try fie ld an d
en te rin g a n arb itra ry va lue . S p an ca n als o be ad ju ste d us ing th e E x pa nd /C on tra ct S oft
Ke y s.
R a di o T e st Ins tru me nt s
Fig . 6 -1 4 Ch an n el A n aly ze r A b so lute S et ting
F ig. 6 -1 5 C ha nn el An al yz er R e lat ive S ett ing
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