Instructions

Page 62
this key is the alternate function of the Max. Zoom key and is therefore only
available at maximum zoom. It is a shortcut back to the display of the full scan
the pan keys move the zoomed display in steps of ten display points.
The keys auto repeat. The marker moves with the pan so that its position
on the graticule does not change.
In scan mode there is only one marker position. This can be controlled using the
navigator keys as with a conventional sweep marker.
The marker position is duplicated in the lower display area, and can be moved anywhere in the
scan including outside of the zoomed area.
in Scroll mode a single press of the Move Left/Right keys cause the selected marker
to move in one pixel steps. Holding a key down auto-repeats in larger steps. Scroll
mode can also be selected by pressing the down key of the navigator hard keys.
in Peak Find mode the Move Left/Right keys cause the selected marker to jump to
the next peak of the trace in that direction. Peak Find mode can also be selected by
pressing the up key of the navigator hard keys.
this key moves the zoomed display so as to re-centre it around the current marker
position. It can also be selected by pressing the centre of the navigator hard keys
(marked M1/M2).
moves the marker in steps as set by the Scroll or Peak Find function.
The marker can alternatively be moved using left/right keys of the
navigator hard keys.
The marker can be moved anywhere within the scan,
regardless of the zoom level. However, peak find can only be
used within the zoom area (i.e. the graticule area) and scroll
mode must be selected in order to move outside it.
In scroll mode the marker moves in steps of one display point,
or in steps of 10 display points with the key held down.
Within the zoomed area the movement is related to the
display points of that area (i.e. the graticule area), but outside of the zoomed area the
movement is related to the display points of the overview display. Consequently when scrolling
the marker across the whole scan, its speed will reduce whilst crossing the zoomed area.
Note that the marker frequency accuracy is a function of the zoom level
8.2.3.3 Storing and Recalling a Scan
Scan files can be permanently saved for future display or for external analysis.
They are stored in the TRACES folder and are distinguished from conventional trace
files by having a file name that starts with a $ symbol.
creates a small sub menu enabling the current scan to be saved under a default
name ($SCANnnn) using Quick Save, or a user defined name ($xxxxxxx) using
Save As.
opens a file access screen similar to that for Traces - see section 5.2. Only files
starting with a $ symbol are valid as scan files.
Scan files can be recalled with or without their State. The “state” is the set-up of the analyzer
when the san was originally created. Recalling the state enables the scan to be run again using
the same set-up parameters. Note, however, that this state will be lost when exiting from scan
mode.
View Full
Scan
Pan
< Left
Pan
Right >
Marker
Marker
< Left
Marker
Right >
Scroll
Store/
Recall
Store
Recall
Peak
Find
Pan to
Marker