Agilent Technologies 8753ET, 8753ES Data Accuracy Enhancement, Data Averaging, Display Control

Sweep trigger

Set to either continuous, single, group sweep, or external trigger. Set external trigger to take a com- plete sweep or to measure individual points in a frequency, power or list sweep.

Power

Set source power from -20 to +5 dBm for the 8753ET1 or from -85 to +10 dBm for the 8753ES2. Power slope can be set in dBm/GHz.

Power Meter Calibration

Select continuous leveling or use a correction table to modify source power. The correction table is created with an initial single sweep. Make single or multiple power meter readings at each frequency.

Data Accuracy Enhancement

Measurement calibration

Measurement calibration significantly reduces measurement uncertainty due to errors caused by system directivity, source and load match, tracking, and crosstalk. Full two-port calibration removes all the systematic errors to obtain the most accurate measurements.

Calibration types available

•Frequency response

Simultaneous magnitude and phase correction of frequency response errors for either reflec- tion or transmission measurements.

•Response and isolation

Compensates for frequency response and direc- tivity (reflection) or frequency response and crosstalk errors.

•Enhanced response calibration

Corrects for frequency response and source match for transmission measurements, and provides one-port calibration for reflection measurements.

•One-port calibration

Uses test set port 1 or port 2 to correct for directivity, frequency response and source match errors.

•Two-port calibration

Compensates for directivity, source match, reflection frequency response, load match, transmission frequency response and crosstalk for an S-parameter test set. Crosstalk calibration can be omitted. Available on 8753ES analyzers.

•TRL*/LRM* calibration

Compensates for directivity, reflection and transmission frequency response, and crosstalk in both the forward and reverse directions.

Especially suitable for calibrating non- coaxial environments, such as in test fixtures. TRL*/LRM* is a special implementation of TRL/LRM calibration, modified for the three- sampler receiver in the 8753ES. Available on Agilent 8753ES analyzers.

Interpolated error correction

With any type of accuracy enhancement applied, interpolated mode recalculates the error coeffi- cients when the test frequencies are changed. The number of points can be increased or decreased and the start/stop frequencies can be changed, but the resulting frequency span must be a subset of the original calibration frequency span. System performance is not specified for measurements with interpolated error correction applied.

Velocity factor

Enters the velocity factor to calculate equivalent electrical length.

Reference plane extension

Redefine the plane-of-measurement reference to other than port 1 or port 2 of the 8753ET and 8753ES.

Select default calibration kit

Select from a list of standard calibration kits or choose a user-defined kit.

Data Averaging

IF bandwidth

The IF bandwidth is selectable from 6 kHz to 10 Hz.

Weighted sweep-to-sweep averaging

Averages vector data on each successive sweep.

Trace smoothing

Computes the moving average of adjacent data points. Smoothing aperture defines the trace width (number of points) to be averaged, and ranges from 0.25% to 20% of the trace width.

Display Control

Display formats

Single-channel, dual-channel overlay (both traces on one graticule), dual-channel split (each trace on separate graticules), three-channel split (each trace on separate graticules), three-channel overlay (three traces on one graticule), quad-channel over- lay (four traces on one graticule), quad-channel split (each trace on separate graticules).

1.	-85 to +5 dBm with Option 004.	17
2.	+8 dBm maximum with Option 075 or 014.