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Electronic Measurement

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Where can I find manuals for discontinued and obsolete Hewlett-Packard, Agilent and Keysight test equipment?
Most Keysight products have PDF manuals that can be found on product pages. Other vendors also supply old manuals.

FAQ 2014-08-01

What application software is available for 16900, 1680x, 1682x and 1680/1690 Series logic analyzers?
See the table for quickly seeing the application support available for Keysight U4000, 16900, 16800 and 1680/90 logic and protocol analyzers.

FAQ 2012-08-14

Which probe positioners are available to hold the N1021B?
The adapter provided with the N1021B is generic enough to work with robot arms or common industry positioners ...

FAQ 2012-07-06

How can I find accessories for a Keysight product?
For instrument-specific accessories (such as probes for an oscilloscope), first go to the product page and then see the related accessories. For general-purpose accessories (such as rf & microwave test accessories, carts, and racks), go to the ...

FAQ 2011-10-07

For the InfiniiMax probes, what effect does the "Signal being probed" setting have? Why do I have to specify single-ended or differential?
Infiniium scopes and InfiniiMax differential probe amplifiers have a unique method of applying DC offset which considers whether the signal being probed is single-ended or differential...

FAQ 2010-10-06

86100A/B/C Infiniium DCA Firmware Upgrades
86100A/B/C Infiniium DCA Firmware Upgrades

FAQ 2010-09-23

86100C DCA-J - TDR/TDT Mode
86100C DCA-J - TDR/TDT Mode

FAQ 2010-09-21

I lost some of the small parts of the N1021B probe kit. Can I get them without buying a whole kit?
The following items will be available from www.keysight.com ...

FAQ 2010-09-19

What replacement parts and accessories are available for the 113xA-series InfiniiMax probes?
The best place to find this information is in the most recent revision of the InfiniiMax Active Probes User´s Quick Start Guide.

FAQ 2010-06-07

Active Probes and Active Probe Power

FAQ 2010-05-14

My InfiniiMax probe fails calibration or does not accurately pick up the cal signal when I use the E2655A test fixture. What could be wrong?
The first step in troubleshooting a failed probe calibration should be to compare the actual signal and the probed signal. If the probed signal does not track the actual signal well, it is most likely due to a poor connection.

FAQ 2010-03-09

The N1021B kit contains shorts and loads. Why would I need an N1024A TDR Calibration kit?
The N1024A is a complete set of premium male and female shorts, male and female loads, a pair of broadband cables and a torque wrench ...

FAQ 2009-06-18

Can the N1021B differential TDR probe be ordered outside of the kit by itself?
Keysight decided to offer new differential TDR probes only as part of the N1021B probe kit ...

FAQ 2009-06-18

How does Keysight specify the bandwidth of the N1021B probe?
The one-way bandwidth of the probe can be estimated using a simplified equation ...

FAQ 2009-06-18

How does the angle between the N1021B probe and the target affect measurements?
It is best to hold the probe perpendicular to the DUT ...

FAQ 2009-06-18

I'd like to make my own fixture to hold the N1021B probe. What do I need to know?
The N1021B probe body has two holes spaced 6.35 mm (1/4") apart and threaded for M2.5 screws. Maximum torque is 0.56 Newton-meter (5 lbf-in).

FAQ 2009-06-18

What happens if I probe somewhere in the middle of differential traces? (N1021B differential TDR probe)
The net effects of probing in the middle of traces are (1) you will greatly attenuate the transmitted signal, (2) you will cause a big discontinuity in the line that will send a reflection back to the source, and (3) the signal viewed using the TD...

FAQ 2009-06-18

Why should I calibrate the N1021B differential TDR probe at its connector side as opposed to its tips?
Calibration requires a short to ground for each single-ended portion of a differential signal. Because the differential probe does not have ground at the tips, it is not possible to calibrate to the tips of the probe ...

FAQ 2009-06-18

Is it possible to save a previous TDR measurement waveform and load as a comparison for my current TDR measurement?
It is possible to save a previous TDR measurement waveform and load it onto the oscilloscope as a comparison to the current measurement.

FAQ 2008-08-03

Can measurements be made on the saved waveforms?

FAQ 2008-08-03

Is it possible to save multiple TDR traces and display them as waveforms on the oscilloscope for comparison to my current measurement?
It is possible to save multiple TDR traces as an internal format for future reference...

FAQ 2008-08-03

What probes are available for my logic analyzer?
Keysight offers the following four basic categories of logic analyzer probes...

FAQ 2007-06-01

Why doesn’t my oscilloscope display the + and - signals from my differential probe separately?

FAQ 2006-11-04