Spectrum Analyzer Mode Key Oescrlptions

Spectrum Analyzer Mode Functions

FREQ OFFSET

allows the user to input a frequency offset value that is added to the frequency readout, to account for frequency conversions external to the analyzer. Offset entries are added to all frequency readouts including marker, start frequency, and stop frequency. Entering an offset does not affect the trace. Offsets are not added to the span. Frequency offsets are entered using the numeric keypad.

When a frequency offset is entered, its value is displayed on the bottom of the screen (as opposed to reference level offsets, which are displayed on the left side of the screen). To eliminate an offset, press FREQ OFFSET and 0 c-1. Pressing I-1 also sets the offset to zero.

Front-Panel Key Access [ F R E Q U E N C Y ]

activates the center-frequency or star-frequency function and accesses the menu that has the frequency functions.

The center frequency or start frequency value appears below the graticule on the screen.

Although the analyzer allows entry of frequencies greater than the specified frequency range, using frequencies greater than the frequency span of the analyzer is not recommended.

N O T E

When changing both the center frequency and the span, change the frequency first since the span can be limited by the frequency value.

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