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Electronic Measurement

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How small is CD and PMD of the 8156xA?
The value of CD and PMD of the 8156xA is equivalent to the value of about 1 m optical fiber SMF28.

FAQ 2011-07-05

I just received my new 816x module and the mainframe does not recognize the module. What should I do?
The mainframe firmware must be at least the same revision number as the module.

FAQ 2011-07-05

Is there an electrical extender cable available for the 8162xA/B optical heads?
The model number of this cable, with a length of 4 meters, is 81624CE.

FAQ 2011-07-05

How large is the optical head detector area?
All optical heads from Keysight Technologies use large area detectors.

FAQ 2011-07-05

What is the difference between the (for pay) photonic library and the (free) PNP drivers?
See long answer.

FAQ 2011-07-05

How do I make high power measurements with an optical head?
The + 27 dBm optical heads are convenient for high-power measurements.

FAQ 2011-07-05

Will the 8164A mainframe print in color?
The 8164A will not print in color to an external printer.

FAQ 2011-07-05

What kind of power sensor is used in the 81566A/67A?
The 81566A/67A uses an InGaAs photodiode, similar to Keysight's 81632A power sensor module.

FAQ 2011-07-05

What is the calibration cycle for the 8161x Optical Return Loss Module?
The 8161X Optical Return Loss Modules have a 24 month calibration cycle.

FAQ 2011-07-05

Is the power control loop of the 81566A/67A also working for signal packets?
Yes, the averaging time of the 81566A/67A has to be adjusted to a time significantly longer than ...

FAQ 2011-07-05

Why can't I install the license key from my PFL CD-ROM?
If you have PFL version 1.0.3 the installation process is described on the CD-ROM (PFL README.pdf).

FAQ 2011-07-05

What is the calibration cycle for the 816x mainframes?
The 816x mainframes do not require calibration.

FAQ 2011-07-05

When upgrading my 816xB mainframe using ATTools, my computer reports "Cannot initialize serial port ...
A background task, such as hot synchronization, may be using the serial port.

FAQ 2011-07-05

How do I interpret the binary data which is retrieved over the GPIB from the Stability/Logging application?
The data has the following format ...

FAQ 2011-07-05

What is the difference between the 8162xA and the 8162xB optical heads?
The main difference is the 8162xB models (except the 81625B) offer an analog output, the 8162xA's do not.

FAQ 2011-07-05

What is the calibration cycle for the DFB Laser sources?
The calibration cycle for the 8166xA DFB laser sources is 24 months.

FAQ 2011-07-05

Is the 8156xA suitable for Cable TV applications?
The angled connector versions 81561A and 81567A avoid irritating interference effects.

FAQ 2011-07-05

Does Keysight Technologies offer analog outputs for the optical heads?
Keysight Technologies offers several different optical heads:

FAQ 2011-07-05

What accessories should I order with my 8169A?
The 8169A two requires fiber connector adapters depending upon what option is ordered:

FAQ 2011-07-05

When I calibrate power/ return loss / source modules, do I send the mainframe as well?
No, it is not required to send in a mainframe to calibrate individual modules.

FAQ 2011-07-05

I need to perform return loss measurements on multimode cable. Will 8161x RTL modules allow me to do so?
Specifications are not valid if using a multimode cable.

FAQ 2011-07-05

What is the difference between the FETCH and the READ command to get the data from the power modules?
The FETCH and READ command will both acquire a power reading from the mainframe.

FAQ 2011-07-05

Is there a replacement product for the E5574A Optical Loss Analyzer?
Please contact your Keysight representative to discuss a configuration for your particular application.

FAQ 2011-07-05

What is the calibration cycle for the interface modules?
The 81618A/81619A interface modules do not require calibration.

FAQ 2011-07-05

Does the parameters 'averaging time' and 'speed' influence the power control loop of the 81566A/67A?
The user selected averaging time is effective for all internal power measurements...

FAQ 2011-07-05

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