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TDR (Time Domain Reflectometry) - Option 215
TDR Measurement Settings
— Press Done to close the Cable Editor.
How to Save or Recall a Cable
— Press
— Press
—
About Cable files
— Cable files are saved to, and recalled from, the Cables folder. If the folder
— Cable files are stored as *.xml files. Existing cable files that are preloaded
— To DELETE a Cable file, use the Manage Files feature. Learn more in
How the Freq/Loss pairs are applied
When the cable file contains one Freq/Loss pair, that correction value is
applied to the entire displayed frequency span.
When the cable file contains two or more Freq/Loss pairs, the Loss value that is
used is interpolated from the Freq/Loss pairs and the TDR center frequency.
For example, using a cable file with the following Freq/Loss pairs:
The center frequency for the measurement is determined from the calculated
(Stop – Start) frequency values (seen on the second page of TDR Settings):
Keysight N9915-90020 User's Guide
Clear All
then Yes. Remove all Freq/Loss pairs from the table and
—
resets header information
Save Cable
to save your changes to the specified Storage Device.
Enter a filename using the FieldFox labeler (see
labeler " on page
820. Learn more about Cable files below
Recall Cable
to load a Cable file from the specified Storage Device
Storage Device
Changes the device used to save or recall Cable files. This
is a different setting from the Save/Recall Storage Device setting. Choose
from Internal (default setting), USB (must be connected) or SD card.
does not already exist on a USB or SD card, it is created automatically
before storing the file.
into the FieldFox firmware can be overwritten. Your edited file will NOT be
overwritten when firmware is updated.
"Manage Files" on page
1 GHz: 0.1 dB/m
2 GHz: 0.2 dB/m
Calculated Start = 2.0 MHz
Calculated Stop = 3.598 GHz
Center Freq = 1.80 GHz
826.
"How to use the FieldFox
83
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