HP Cable Box 8591C manual Marker -4F, Marker +REF LVL , Marker -&F Step, Max

Spectrum Analyzer Mode Key Descriptions

Spectrum Analyzer Mode Functions

MARKER

NORMALactivates a single frequency marker at the center frequency on the active trace if an on-screen marker is not already displayed. If there is an on-screen marker before the MARKER NORMAL function is enabled, a frequency marker is enabled at the position of the first marker. Use the data controls to position the marker. Annotation in the active function block and in the upper-right corner indicates the frequency and amplitude of the marker.

The marker stays on the trace at the horizontal screen position where it was left unless MK TRACK ON OFF ,

MARKER AMPTD , or a “marker to” softkey function (such as

MARKER -4F, MARKER +REF LVL , MARKER -&F STEP ,

MARKER A +SPAN , or MARKER--+ MINIMUM ) is selected.

Pressing MARKER NORMAL turns off the marker-delta function.

Front-Panel Key Access (MKRI

MARKER

ONactivates a marker in the gate utility. The MARKER ON key is accessed from within the pulse parameter entry menus in the gate utility. If the reference edge parameter is being entered MARKER ON turns on a trigger marker. For pulse width and pulse repetition interval entry, it turns on a delta marker. The delta marker will be activated at the defined reference edge, if one is available. Otherwise, it will activate at mid screen.

Front-Panel Key Access c-1

MAX

HOLD A maintains the maximum level for each trace point of trace A. Updates each trace point if a new maximum level is detected in successive sweeps.

Front-Panel Key Access (-1

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