HP Cable Box 8591C manual Done Droop DSP Line on OFF Dwell Time

DONE

DROOP

DSP LINE ON OFF

DWELL

TIME

Spectrum Analyzer Mode Key Descriptions

Spectrum Analyzer Mode Functions

exits the pulse parameter entry menus in the gate utility assigning the current marker value to be the value of the parameter being entered. Pressing DONE also restores the sweep delay and sweep time, of the time domain window, to the values that existed prior to any adjustments made during pulse parameter entry.

Front-Panel Key Access (SWEEP_

disables the reset of the peak detector on the Al6 Processor/Video assembly after each analog-to-digital conversion. This is a service diagnostic function and is for service use only.

Front-Panel Key Access (CAL)

activates an adjustable horizontal line that is used as a visual reference line. The line, which can be used for trace arithmetic, has amplitude values that correspond to its vertical position when compared to the reference level. The value of the display line appears in the active function block and on the left side of the screen. The display line can be adjusted using the step keys, knob, or numeric keypad. Pressing any digit, 0 through 9, on the numeric keypad brings up the selected terminator menu. To deactivate

the display line, press DSP LINE ON OFF so that OFF is

underlined. (Also see the VIDEO softkey description.)

Front-Panel Key Access c-1, C-1, or

[ P E A K S E A R C H ]

sets the dwell time for the marker pause, during which demodulation can take place in nonzero span sweeps. The dwell time can be set from 2 milliseconds to 100 seconds.

Front-Panel Key Access (AUX]

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