562 Chapter13
Softkey Descriptions
Softkey Descriptions
Amp Cor Amplitude Correction
DESCRIPTION Accesses the menus for controlling the current
amplitude-correction factors. Refer to the 8590 E-Series
and L-Series Spectrum Analyzers User's Guide, for
more information about amplitude correction.
ANALYZER GAINS Analyzer Gains
DESCRIPTION Displays the gains of the various sections of the
analyzer block diagram for the current settings.
AUXB Auxiliary B
DESCRIPTION Note that this function is available for 8591C cable TV
analyzers and 8591E spectrum analyzers only.
Displays the voltage level at an unused input to the
Test Point MUX circuitry located on the A7 analog
interface assembly. The AUX B input to the A16
processor/video assembly floats to a high positive
voltage. When
AUX B is selected, a horizontal line above
the top graticule line, is displayed.
Display Label Description Location Value
RF Atten RF Attenuator RF Assembly 0 to −70 dB in 10 dB
steps
3rd Conv DAC Variable Gain Third Converter 0 to 255 (8 bit DAC)
21.4 Gain Step Gain Amplitude Control 0 to 50 dB in 10 dB
steps
Cal Atten Calibration
Attenuator
Amplitude Control 0 to −31 dB in 1 dB
steps
Lin Gain Linear Gain Log Amplifier 0 to 40 dB in 10 dB
steps
Nbw S Gain* Nbw Step Gain Narrow Bandwidths 0 to 40 dB in 10 dB
steps
* Only displayed for Option 130 narrow bandwidths
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