User`s guide

Key Reference 4

N9320A Spectrum Analyzer 73

Int Preamp

On Off

(Option PA3) Softkey toggles the internal pre- amplifier

function between on and off. Pressing Int Preamp (On) results

in a correction being applied to compensate for the gain of

the preamp. Amplitude readings then represent the signal

value at the input connector. When the preamp is on, a “PA”

indication appears on the left side of the display. The

preamp operates over a range of 100 kHz to 3 GHz.

Key access:

Y Axis Softkey accesses the softkeys that change the amplitude

units (logarithmic or linear). Change the amplitude units by

pressing dBm, dBmV, dBuV, dBuA, Watts, Volts, and Amps.

Key access: > More 1 of 2 >

Ref Lvl Offset Softkey adds an offset value to the displayed reference level.

Reference- level offsets are only entered by using the numeric

keypad. Entering an offset does not affect the trace or the

attenuation value. Reference- level offsets are used when gain

or loss occurs between a device under test and the analyzer

input. Thus, the signal level measured by the analyzer may

be referred to as the level at the input of an external

amplitude- conversion device. When an amplitude offset is

entered, its value appears on the left side of the display

under Offst (as opposed to frequency offsets which appear

at the bottom of the display). To eliminate an offset, press

Ref Lvl Offst > 0 > dB.

Key access: > More 1 of 2 >

Amplitude