HP Cable Box 8591C manual Watts, YZ,# s p c C l e a r, Zero Marker Span

Spectrum Analyzer Mode Key Descriptions

Spectrum Analyzer Mode Functions

Watts

WINDOWS OFF

XFINE

TUNE DAC

YZ,# s p c C l e a r

ZERO

MARKER

ZERO

SPAN

changes the amplitude units to volts.

Front-Panel Key Access CAMPL’TUDE]

changes the amplitude units to watts.

Front-Panel Key Access [AMPLITUDE]

turns off the windows display mode and returns to the normal full-sized instrument display. The state of the last active window will become the instrument state when the windows display is turned off.

Front-Panel Key Access WINDOWS ION)

displays the output of the YTO extra-fine-tune DAC (FM-TUNE) that is on the A7 Analog Interface assembly. This is a service diagnostic function and is for service use only.

Front-Panel Key Access (CAL)

accesses the softkey menu used for selecting the characters Y, Z, underscore (-), f, space, or for clearing the screen title.

Front-Panel Key Access (CAL), L-1, (j-j, (jj), or ISAVE)

zeros the value of the delta marker to establish a new reference. The ZERO MARKER softkey is in the pulse parameter entry menus of the gate utility.

Front-Panel Key Access (-1

changes the frequency span to zero and turns off marker track if it is on.

Front-Panel Key Access m

6-154