[SAC-HELP] Help on PLOTPK

[Melaku Ayenew]

hi all,
I am just starting to learn sac ,and have some difficulties using the PLOTPK
command, I know it produces a plot for picking of arrival time, by problem
is how i pick those arrival times after i got the plot with a x-y cursor. Do
i need to creat  hypo file to store the picks, please be more explicit.

thank you
melaku Bogale
New Mexico State University
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