The Agilent/Keysight Technologies 8990B Peak Power Analyzer, Refurbished lets you skip the complicated setup and go straight to making measurements . This instrument offers faster measurement speed and greater measurement accuracy in key applications such as radar pulse analysis and wireless pulse measurement. Designed with both ease of use and high performance in mind, the 8990B peak power analyzer does more than just measure and analyze - it saves you time and effort, letting you focus on the important details.

Ease Of Use

8990B peak power analyzer is built for ease of use: the instrument is easy to set, easy to trigger and easy to measure pulse measurements with.

Performance

The 8990B peak power analyzer features a host of key performance specifications, dedicated to give you accurate and more detailed pulse measurements, faster.

Measurement Screen

The main measurement screen is capable of displaying up to four traces: two RF traces, and two video traces (the triggering signal). Results are shown in the panel directly under the graphical window, with measurements displayed in the same color as the channel to which it corresponds. When a USB sensor is connected, the results for this additional channel can be overlaid on the same graphical window in compact mode, The main screen also features a soft panel key to the side of the graphical window, which lists the 15 pulse characterization measurements for quick measurement analysis. Users can select these measurement parameters via the touchscreen display, or by using the mouse.

Delay Measurement

Perform delay measurements by pressing the Delay Measurement button on the soft panel key and two vertical markers will automatically detect the first pulse of the traces. The time delay between the two traces will be displayed in the measurement panel below the graphical window.

Droop measurement

The 8990B is the first peak power analyzer on the market to offer automated Pulse Droop measurement, which measures the amplitude degradation of the pulse top. This eliminates the need to manually manipulate the horizontal markers to make this measurement. Access the Pulse Droop measurement via the soft panel key.

Spacing Measurement

Easily measure the space between pulses when a long pulse train occurs. The 8990B allows users to select the starting pulse and the end pulse, a function that is important in pulse block validation. R&D engineers may use this function to detect potential abnormalities in certain pulse groups, and whether those abnormalities are repeated in a long pulse train.

Zoom Screen

The 8990B provides dual window zoom capability. When this function is enabled, the top screen will display the original signal, while the bottom screen displays the enlarged signal trace.

To focus and zoom in on a particular segment of the signal trace, use the white zoom box to select the area of interest on the original signal trace. The measurement panel below will display the results of the selected signal segment. This function provides R&D engineers the flexibility to focus on particular parts of the signal and to obtain only the measurement results they need.

The dual zoom window capability allows users to observe the original trace while focusing in on the selected signal segment instead of flipping between screens or losing the original trace after zooming in on the segment.

Threshold/Power Display Settings And Erase Memory

The 8990B allows users to change channel settings. The default threshold setting is 90% and 10%; however, users may change the reference levels to any value. If a pulse has high overshoot in the traces, users can choose to reduce the upper trace level to 80% or 70% to eliminate the overshoot signal’s impact on the results. Users can also modify the trace level of two different signals for the delay measurement according to what is the best reference level for the individual signal.

Users can also change their settings to display power measurements in either logarithmic or watts to help with easy result conversion or to match the results to the traces in the graphical window.

For users in the aerospace and defense industry, the 8990B offers several ways to secure both data and measurement settings such as the memory sanitization feature, a standard product feature in all Keysight equipment that will erase the system’s setup and data results. Users can also opt for the removable hard drive option, which switches the attached hard drive with a removable version, so users can remove data and settings together with the hard drive without worrying about information leaks.

Multi-Pulse Measurement

View, measure and analyze continuous pulse trains from power amplifier modules or transmitters. The multi-pulse measurement feature allows continuously trigger and capture up to 512 pulses. This feature also adds pulse-to-pulse measurement and histogram distribution graph capabilities to the 8990B, which are crucial for testing RF and the pulse-to-pulse stability of power amplifiers and transmitters.

Additionally, operators can use the multi-pulse measurement feature to analyze short pulse with long off time or amplitude droop across the pulse train, or monitor the stability of the pulse shape (via the histogram graph functionality).

Power-Added Efficiency Math Function

Calculate the Power-Added Efficiency (PAE) of power amplifiers and display instant PAE traces onscreen with the 8990B. Power-Added Efficiency, a typical power analyze measurement, is a measure of the power conversion efficiency - the percentage of DC power converted to RF power in the power amplifier - of power amplifiers.

Reduce test costs and the number of test equipment needed with the 8990B; the peak power analyzer measures RF power, voltage and current in a single solution box. The 8990B’s two RF input channels allow users to measure the RF power gain from the power amplifier; using a DC current probe, scope probe or differential probe, they can also measure the power amplifier’s voltage and current through the analog video input channels. The 8890B’s PAE math function then uses the measurements from the RF and analog video input channels to easily determine the PAE of the power amplifier.

Adjustable ETS Threshold For Wider Bandwidth Measurement

Measure peak and peak-to-average of 802.11ac wide bandwidth signal accurately with the 8990B’s 160 MHz video bandwidth capability. The peak power analyzer can execute power vs. time (PvT) measurements on an 80 MHz or 160 MHz 802.11ac signal by adjusting the ETS threshold according to the burst length. Operators can also use the zoom function to analyze and measure the preamble power of the 802.11ac burst signal.