28 Chapter 3
Software Guide
• Load Reference File allows the user to select a file from the hard
drive to load into the shift reference. (See “Distributed Sensing
Measurements” on page 59.) This feature is only available as a pur-
chased option, and will otherwise be gray in the file menu.
• Select File Options calls up a dialog box allowing the user to select
the file type(s) for data saved. The user may select the file exten-
sions for spreadsheets (.txt) and binary files (.obr). Only binary files
may be reloaded into the OBR software. (See “Saving Data” on
page 62 for more information.)
• Save Software Options saves user-selected settings from the
Options menu; these options are retained the next time the software
is run.
• Print Datasheet prints the two graphs as they are displayed to the
default printer. (For more information, see “Printing Graphs” on
page 76.)
• Exit exits the OBR control software.
The Edit menu
• Cut may be used to cut user-selected numbers in fields and axes
and paste them to the clipboard.
• Copy copies selected numbers from a field or axis to the clipboard.
• Paste pastes numbers from the clipboard to a field or axis value.
The Options menu
• Instrument Configuration calls up a dialog box where the
user
can
select the device length range (in Normal Range mode) and the
desired resolution. (See “Instrument Configuration” on page 34.)
• Distance Range allows the user to select either Normal Range (30
or 70 m) or Extended Range (up to 2 km) measurements. This
menu item is gray if the user has not purchased the Extended
Range option. The user should note that the spatial resolution will
go down when operating in the Extended Range mode. (See the
Specifications Sheet that came with your OBR unit for details.)
• Resolution BW Units allows the user to select either picometers
(pm) or gigahertz (GHz) as the resolution bandwidth units. The
default setting is picometers. The resolution bandwidth is displayed
in the lower right of the lower graph area, but only when the upper
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