Viavi 3900 Series Operation Manual page 194

Radio test set
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6. 5. 5. E
Cap tu re S o ft K ey
Whe n C ap tur e S o ft K ey is pr es se d t he cu rre nt tra ce is he ld on th e d isp la y. T o re su m e
no rm a l sw e ep o pe ra tion p res s the C lea r S o ft K ey .
A ca ptu re d trac e ca n b e sa ve d by pr es sin g t he H O LD K ey , th e n s ele ct ing th e S a ve A s
So ft Ke y.
6. 5. 5. F
Cl ear So ft Key
C lea rs the c ur ren t c ap tu red tr ac e a n d r es um e s d is pla y of L iv e t rac e. Th is so ft k ey is on ly
vis ible w h en a tra ce is i n 'C a ptu re d' sta te .
6. 5. 5. G
Acc umu l ate S o ft Key
Whe n the A cc um u la te So ft K e y is se t to O N , th e tra ce is n o t cl ea red a t th e en d o f e ac h
sw e ep , s ho wi ng ea ch s ub se qu e nt t rac e on th e d isp la y. Th e a cc u mu la tion c on tin ue s u n til
th e Ac cu m ula te S o ft K e y is tur ne d O FF . O FF c le ars t he a cc um u lat ed tr ac es a nd r es um e s
dis pl ay of a s ing le tra ce . T his s oft ke y is a cce s se d b y pre ss ing th e Tra c e S o ft K ey .
R a di o T e st Ins tru me nt s
Fig . 6 -3 8 O s cillo s co pe C ap tu red T rac e s
6 - 36

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