Marker Control State - DEVA Broadcast DB4004 Maintenance And Operation Instruction Manual

Marker control state:

Up to two markers, named "A" and "B" are available in Bandscan page. SB1, SB2, Left and
Right buttons controls the visibility and position of the Markers.
Button assignments:
(SB1) /
three states of each marker:
• hidden – marker is not visible;
• shown – marker is visible but is not selected;
• selected – marker is visible and selected.
For markers in visible state (shown or selected) a readout for X and Y axes appear on the left
side of the data plot. If both markers are visible the differential "Marker B – Marker A" values
become available at the bottom left.
Selected marker is drawn with highlighted dashed line, the marker readout is highlighted
also. There can be only one selected marker at the time. If only one marker is visible it is always
selected.
The logic of transition between these states is explained in following diagram:
SB1 or SB2
Left / Right Buttons – move selected marker to the left / right with one screen pixel increment.
NOTE: The step resolution of marker movement depends from selected X span.
Up / Down Buttons – just like in Span control state Up and Down buttons us used to change the
Y reference.
(SB2) controls Marker A / Marker B appearance. There is
Marker A is shown, Marker B is selected
Marker
is hidden
SB1 or SB2 press
press
Marker
is selected
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Marker
is shown