HP Cable Box 8591C manual Slope, Ispan or Span, Speaker On OFF

SLOPE

ISPAN) or SPAN

SPAN

ZODM

SPEAKER

ON OFF

Spectrum Analyzer Mode Key Descriptions

Spectrum Analyzer Mode Functions

draws a straight line between the coordinate point of the current segment and the coordinate point of the next segment, producing limit-line values for all frequencies between the two points.

Front-Panel Key Access [ml

activates the SPAN function and accesses the frequency-span functions. Pressing SPAN allows the user to change the frequency range symmetrically about the center frequency. The frequency-span readout describes the total displayed frequency range; to determine frequency span per horizontal graticule division, divide the frequency span by 10.

Front-Panel Key Access m

finds the highest signal peak on-screen. If a marker is not already on the peak, it places a marker on it, turns on the marker-track function, and activates the span function.

Pressing SPAN ZOOM performs the routine similar to pressing the following keys: (PEAK SEARCHJ (MKRFCTN), MK TRACK ON OFF (ON), and(K).

Front-Panel Key Access ISPAN]

turns the internal speaker on and off. The volume from the speaker is controlled by the front- volume control knob and FM GAIN (when using FM demodulation). There is no output from the speaker unless demodulation is turned on. Pressing (W] sets SPEARER OM OFF to ON.

Front-Panel Key Access (AUXCTRL)

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