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Electronic Measurement

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If we use external clocks for both the Pattern Generator and Error Detector parts, can we run them at different data rates?
It would be more straight-forward to provide the PG (TX) with a 10 GHz clock (for 10 Gb/s data) and then use the 1:4 demux and provide the ED (RX) with a 2.5 GHz clock (measuring 2.5 Gb/s data). Click on the question for additional information.

FAQ 2017-06-28

What is the raw jitter tolerance for the N4960A/N4952A?
There is no CDR in the N4960A, so by itself, the JTOL plot will be a flat line somewhere below 1 UI. An external CDR can be used. Click on the question for additional information.

FAQ 2017-06-28

How do I measure a pulsed RF signal output with a sampling oscilloscope?
There are two possible ways. Click on the question for additional information.

FAQ 2017-06-28

What is the difference between the Integrated true-mode stimulus application (opt 460) and the Differential and I/Q devices application (opt 089)?
The Integrated TMSA and the DIQ both simplify measurements of differential (balanced) devices. The two applications however, are used for different measurements. Click on the question for additional information.

FAQ 2017-06-28

N9080B SEM measurement defaults seem to be different from 3GPP 36.141 V12.12.0 (2016-06). Is N9080B doing something it shouldn’t?
To make a “True RMS detection”, as requested by the 3GPP conformance testing, based on ITU-R SM.329, for a mix of noise-like & CW-like signals under test, use “Peak Detector with very narrow VBW”. Click on the question for additional information.

FAQ 2017-06-28

When using the DIQ application, what happens when I set the internal receiver to measure beyond the frequency range of my instrument?
Data for frequencies beyond the instrument hardware limitations is extrapolated from the hardware’s maximum and minimum limits. Click on the question for additional information.

FAQ 2017-06-28

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 N7625B, how many instances of carriers and carrier aggregations do the software support?
One connected signal generator can support one instance of Carrier Aggregation mode. One instance of Carrier Aggregation can support 5 component carriers.

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

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

How do I measure accurately below -60dBm using U2040 X-Series Sensor?
Click on the question above for recommended steps.

FAQ 2015-12-14

Can the counter make simultaneous measurements on channels 1 and 2?
No. The channels are independent and can be configured separately; however, they do not have separate processors.

FAQ 2015-09-21

Why does the counter fail to make a very low frequency measurement?
Verify the System Timeout setting by pressing Utility - Instr Setup - Time Out Settings. Turn the time out off or set it to a large value.

FAQ 2015-09-01

Why will the counter not make low frequency measurements?
Verify the System Timeout setting by pressing Utility - Instr Setup - Time Out Settings. Turn the time out off or set it to a large value.

FAQ 2015-09-01

How can I make 75 Ω measurements using the ENA?
You can make 75 Ω measurements with the ENA by shifting system characteristic impedance to 75 Ω.

FAQ 2015-03-09

Can I use the Fixture Simulator functions with the 2-port ENA?
Yes, but the function is limited...

FAQ 2015-01-09

Is there a summary of available cable test methods when using the FieldFox Hand Held portable analyzers?
Yes. Please refer to the FieldFox Hand Held Cable Test details and methods below.

FAQ 2014-08-11

Can I have multiple math functions (Null, Min-Max, dB, dBm, Limit) on at the same time on the 34401A?
No, the 34401A only allows one math function to be used at a time.

FAQ 2014-04-15

Why does my FieldFox spectrum analyzer preamplifier increase the noise floor when engaged?
The FieldFox spectrum analyzer preamplifier selection will normally reduce the displayed noise floor when activated. However, if the FieldFox RF attenuation AUTO selection is set to ON then the preamp may not reduce the noise floor.

FAQ 2014-03-03

Can I do voltage measurement using the U2802A rather than temperature measurement?
Yes, you can do voltage measurement easily by using the Keysight Measurement Manager (AMM)...

FAQ 2013-11-17

Replacing the 8508A vector voltmeter with the E5061B network analyzer
Measuring the phase difference of an external CW signals is a typical measurement application of the 8508A vector voltmeter.

FAQ 2013-10-14

Why is the segmented memory acquisition mode useful and which Infiniium oscilloscopes support it?
Segmented memory mode offers more efficient acquisition memory usage for storing waveforms with events of interest that are separated by long periods of time. All currently shipping Infiniiums and many older units support segmented memory.

FAQ 2013-09-18

On the PNA Vector Network Analyzer Family Is it possible to save a Touchstone (SnP) file with unwrapped phase?
Yes. The PNA Family of Vector Network Analyzers can save Touchstone (SnP) files with the phase information as unwrapped phase. To achieve unwrapped phase in a Touchstone file save perform the following...

FAQ 2013-07-29

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