Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 35)

File Menu
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snapshot have a icon. A new (empty) archive has a icon.
All of the backups for a particular job are physically stored to a single
compressed file located in the \Jobs directory on the data collector.
This file will have the same filename as the current job, only the
*.Backup extension is appended to the name. For example, the
backups for a job with a filename of Smith.Job will be stored in a file
called Smith.Job.Backup.
New Archive… : opens the New Archive screen where a
name is entered for the new backup archive being
created. Once created, an empty archive will be listed in
the main Backup / Restore screen, which can then be
selected to backup the current job.
Delete Archive… : opens a prompt asking if you are sure.
If you select Yes at the prompt, the archive selected from
the main Backup / Restore screen will be deleted.
Properties… : opens the Archive Properties screen.
Backup: When selected, tapping Next> will begin the
backup routine where the data for the current job will be
stored to the selected archive.
Restore: When selected, tapping Next> will begin the
restore routine where the data from the selected archive will be
restored, overwriting the current job.
Next> : accesses the next screen.