Keysight N9923-90001 User’s Guide51NA (Network Analyzer) ModeNA Mode Settings— Then Average where is the number of measurements to average.— Enter a value using the numeric keypad. Enter 1 for NO averaging.— Press Enter.— Then Average Mode Choose from the following:—Sweep - Each data point is based on the average of the same datapoint being measured over consecutive sweeps. The averagecounter shows the number of previous sweeps that have beenaveraged together to form the current trace. When the counterreaches the specified count, then a ‘running average’ of the last sweeps is displayed.—Point - Each data point is measured times and averaged beforegoing to the next data point. On subsequent sweeps, averagingrestarts by measuring each data point again times. The averagecounter is not updated because data is not displayed until all theaverages have been applied.—Point averaging is usually faster than sweep averaging. However, youmay need to increase the Point Average count to obtain the samelevel of noise reduction as with sweep averaging.— While averaging is in process, press Sweep 3 then Restart to restart theaveraging at 1.IF BandwidthThe FieldFox converts the received signal from its source to a lowerintermediate frequency (IF). The bandwidth of the IF bandpass filter isadjustable. Reducing the IF receiver bandwidth reduces the effect of randomnoise on a measurement. However, narrower IF bandwidths cause longersweep times.How to set IF BW— Press BW 2.— Then IF BW— Then choose from the following:— 10 Hz | 100 Hz | 1 kHz | 10 kHz | 100 kHzMore 30 Hz | 300 Hz | 3 kHz | 30 kHzSmoothingTrace smoothing averages a number of ad jacent data points to smooth thepeak-to-peak noise values on a displayed trace. The number of adjacent datapoints that are averaged is known as the smoothing aperture. Aperture is setby specifying a percentage of the X-axis span.Trace smoothing does NOT significantly increase measurement time.
