Viavi 3900 Series Operation Manual page 164

Fig . 6 -5 sh o ws M ar ke r 1 se t to 1 49 .8 75 M H z a nd M a rke r 2 se t to 1 50 .0 0 M H z , w ith
m ar ke rs in L O CK E D sta te . F ig. 6-6 s ho w s M a rke r 1 c ha ng ed to 1 50 .0 0 M H z , w hic h
re po sitio n s M a rke r 2 to 1 50 .12 5 M H z, m a int ain ing th e fre qu en cy sp a cin g e s tab lish e d
be fo re en ab lin g th e LO C K ED s ta te.
6. 2. 5. C M kr 1/ M kr 2 S o ft Key
Th e M kr1 a nd M k r 2 So ft Ke ys o pe n a s of t ke y su b-m e n u th a t p rov ide s au to m ate d m ark er
fu nc tion s. A M ark er m us t b e e n ab led to us e the se m a rke r f un ctio n s. T h is s oft ke y is
ac ce ss ed b y p re ss ing th e M a rk ers S of t K ey .
6. 2. 5. D M kr 1 (o r 2) to P K S o ft Key
Th e M k r t o P ea k So ft K ey m o ve s M a rke r 1 or 2 to th e po sit ion o f th e pe ak va lue s h ow n o n
th e c ur ren t tr ac e. Th is s of t ke y is a cc es se d by pr es sin g the M kr 1/ Mk r 2 S of t K ey .
R a di o T e st Ins tru me nt s
F ig. 6 -6 L O CK E D M ar ke rs - R ep os itio ne d While in LO C K E D Sta te
F ig . 6 -7 M kr 1 /M k r 2 So ft Ke y S u b- me n u
6 - 6