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Technical Support

High-Speed Digitizers and Multichannel Data Acquisition Systems

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1-18 of 18

In 89601B for APSK demodulation, how does the LDPC parameter affect measurements?
LPDC adds bit encoding.

FAQ 2016-07-08

In 89601B Digital Demodulation, how can we perform Pi/4 QPSK?
QPSK can be used for Pi/4 QPSK modulation analysis, but the demodulated bits will not be valid.

FAQ 2016-07-08

In VSA software, how can I export data from the coordinate transformed data that is displayed on the trace?
This can be done by copying/pasting data, or via the API.

FAQ 2016-07-08

In 89601B, I want to know if the setting is finished. Is there a .NET equivalent of *OPC?
No, there is no equivalent *OPC command since this is typically not required. The command "Measurements.WaitForMeasurementDone" can wait for the end of the measurement.

FAQ 2016-07-08

In 89601B Vector Mode, what is the maximum Main Time length achieved?
Main Time is limited to 524288 samples.

FAQ 2016-07-08

Can or will the N9081A and W9081A support Bluetooth® 4.0?
Yes, the N9081A and W9081A support the low energy measurements enabled by Bluetooth 4.

FAQ 2012-03-02

Can the Keysight X-Series signal analyzer with N9081A Bluetooth® measurement application measure Bluetooth hopping signals?
The short answer for this question is “no”. Fundamentally, frequency hopping is needed for testing the functional capability of the Bluetooth device.

FAQ 2012-01-10

Why does the Bluetooth® ACP measurement take 15 minutes to complete?
The time needed for the ACP measurement is due to the requirements of the Bluetooth-test specification.

FAQ 2012-01-10

Why is the peak power for Transmit Analysis 3.78 dBm, but with Zero span it is 3.66 dBm?
It is measured in the IQ domain, not in power domain, so there is no VBW function. The most important factor is the bucket width.

FAQ 2012-01-10

Why do we see unused port in U2300A/U2500A with similar waveform and frequency but with lower amplitude to its adjacent or close by used port?
It is recommended to ground all the AI connection that is not being used. If you have multiples of AI channels to be used, one good way is to have…

FAQ 2010-08-09

If I set Channel 1 of U2300A/U2500A with voltage range of 5V, I get a reading of 4.99968 when nothing is connected to the DAQ.
If you don't have anything connected to the DAQ and you do an acquisition out of it, the result…

FAQ 2010-08-09

What is the clock rate for Digital Inputs(DI) and Digital Outputs(DO) of U23xxA and U25xxA USB Data Acquisition?
The DAQ DIO is not meant to measure DI with clock rate precision or to control frequency of digital output

FAQ 2010-07-18

Is there any special setting that I need to do in Keysight VEE before using the U2300A or U2500A DAQ with it?
Yes. In fact it is the most important thing you need to set before using the DAQ with Keysight VEE. As most instruments uses MSB byte ordering, DAQ...

FAQ 2009-12-15

What is the main difference between the digital output (DO) of the U2100A, U2600A, U2300A and U2500A?
The DO port of U2100A and U2600A requires external power supply to be pumped into the port...

FAQ 2009-10-20

How do I know what is the best sampling rate to use for my measurement?
Typically if you follow Nyquist theory, your sampling rate should be 2x the highest frequency of the incoming signal that you are measuring. However, we recommend that you use 5x...

FAQ 2009-09-29

How can I remotely connect to all my USB DAQ devices, Digital IOs, and card cage?
Please make sure that your remote PC (which is connected to all your USB instruments) is connected to the same network as yourself. However, your remote PC cannot be connected...

FAQ 2009-08-06

Why do I receive an error message below ?
Generally, if you are sampling at 60kSa/s and above, you should use high sampling mode to acquire data. This is just a rough guideline. If you encountered this message even when....

FAQ 2009-08-06

Can both Analog Input and Analog Output function at the same time?
Yes, both Analog Input and Analog Output can function at the same time. However,….

FAQ 2009-02-04