REI OSCOR Blue, User Manual

Page: 53 / 123

OPERATION
46
2.
Zoom Region
– shows the portion of the tuner range that is displayed in the detail zoom
window.
3. Detail Zoom Window – When zoomed in on a portion of the tuner range, this window is where
you will view the zoomed portion of the spectrum.
Navigating within the Detail Zoom Window
When Detail Zoom is on, all of the spectral parameters at the top of the screen refer to the Detail Zoom
Window, not the range currently being swept by the tuner or the spectral thumbnail. Also, when detail
zoom is on, any changes made to the spectral parameters or any of the methods described previously
for navigating the spectrum will change only the detail zoom window; the tuner continues to sweep the
same range that was set when Detail Zoom was turned on. With Detail Zoom on, there is one additional
way to navigate the spectrum:
- Click & Drag – Thumbnail Pan: if the detail zoom window is set to a narrower span than the
spectral thumbnail (or tuner range), you can pan the current spectrum by
clicking
within the
zoom region (or highlighted portion of the spectral thumbnail) with the stylus or your finger and
dragging
the highlighted portion to the left or right.
Setting Up the Tuner Range for Detail Zoom
The tuner range must be set up before Detail Zoom is entered. If you wish to change the tuner range
once detail zoom has been turned on, you must first disable Detail Zoom (select the
Detail Zoom
icon
within the
Setup
Sub-Menu so that it is not highlighted) and then adjust the tuner range.
WARNING:
When Detail Zoom is turned off, the tuner range will be adjusted to the same range as the
detail zoom window. If you are collecting peak data for a specific tuner range, be sure to set the detail
zoom window to that range before switching detail zoom off.
By default, the tuner range in Detail Zoom mode is established by how the tuner is setup when Detail
Zoom is entered. It is possible to have the tuner always switch to a specific preset when Detail Zoom is
entered:
1. From the Main Menu, select Setup or press F1 .
2. Select the
Spans
icon.
3. At the top of the dialog box, switch the Detail Zoom Tuner Setting from “
Set to Screen”
to
“Preset Span”
by selecting
Preset Span
.
4. From the drop down box next to
Preset Span
, select a span.