R&S ZNL, User Manual

Page: 545 / 1135

VNA GUI reference
R&S
®
ZNL/ZNLE
545 User Manual 1178.5966.02 ─ 19
If "Delay" is the selected trace format, the entire trace is shifted in vertical direction and
centered on zero. In phase format, the "Auto Length" corrected trace shows the devia-
tion from linear phase.
Use Evaluation Range... to limit the frequency range for the calculation.
Note that in order to calculate the electrical length offset of port i , you have to select a
trace that uses port i as one of its receive ports. It is not relevant for the "Auto Length"
function which Port is selected.
If the measured quantity is a ratio, or if it is derived from a ratio, its receiving port is
given as the index of the wave quantity in the numerator. If the active trace shows an
S-parameter S
ij
, then "Auto Length" adds a length offset at port i. If the receive port is
balanced, then the same offset is applied to both its physical ports.
Remote command:
[SENSe<Ch>:]CORRection:EDELay:AUTO
Fixture Compensation...
The "Fixture Compensation..." button opens the Fixture Compensation dialog .
Evaluation Range...
The "Evaluation Range..." button opens the Evaluation Range dialog that allows you to
restrict the frequency range of auto length (and loss) calculations.
10.14.2.2 Fixture Compensation dialog
This dialog allows you to correct the measurement result for the effects of a test fixture.
Access:
●
[Offset Embed] > "Offset" > "Fixture Compensation..."
●
[Offset Embed] > "One Way Loss" > "Fixture Compensation..."
Background Information
Refer to Chapter 9.6.1.5, "Fixture Compensation" , on page 281.
Offset Embed softtool