Window Settings - Keysight Technologies C Series User Manual

Fieldfox analyzers

TDR (Time Domain Reflectometry) - Option 215

TDR Measurement Settings

The Loss value for the measurement is interpolated from the Freq/Loss pairs at

the Center Freq:

The correction for loss at 5 meters in one direction: 0.18 dB/m * 5m = 0.9 dB.

All TDR measurements correct for loss for travel down the DUT and back, so

double the correction: 0.9 dB * 2 = 1.8 dB.

Window Settings

Window settings provide the ability to choose between optimizing TDR

measurements for resolving closely-spaced faults or for the ability to measure

low-level faults.

How to select Window settings

— Press Meas Setup 4.

— Then Settings.

— Then press

— Then press Edit.

— Then press

— Again press Done.

1 GHz = 0.1 dB/m

1.8 GHz = 0.18 dB/m

2 GHz = 0.2 dB/m

arrows to move to the Window row.

and choose from the following:

(Maximum – Optimized for dynamic range) the noise floor

is lowered to provide the ability to measure low-level responses.

(Default setting)

– Compromise between Min and Max window settings.

– Best Response Resolution, providing the ability to resolve

between two closely-spaced responses.

Keysight N9915-90020 User's Guide