42
FieldFox User’s Guide
o
Z Conv ( -- ) or Y Conv ( -- )
Perform conversion for impedance (Z) or
admittance (Y). Then choose from the following for either:
o
Auto
The displayed S-parameter is converted to the
appropriate
Z or Y
parameter: Refl for S11 and S22; Trans for S21 and S12. When the S-
parameter is changed, the appropriate conversion changes automatically.
o
Refl
The displayed S-parameter is converted to Z or Y
reflection
,
regardless of whether the S-parameter is reflection (S11 or S22) or
transmission (S21 or S12).
o
Trans
The displayed S-parameter is converted to Z or Y
transmission
,
regardless of whether the S-parameter is reflection (S11 or S22) or
transmission (S21 or S12).
o
1/S
The displayed S-parameter is converted to 1/S-parameter.
Receiver Measurements
In NA Mode ONLY, you can make unratioed, uncorrected receiver measurements.
These measurements are typically used as diagnostic tools for service personnel.
NOTE
Receiver measurements are NOT corrected for absolute power. They are only
useful for making relative measurements. The Y-Axis and markers are labeled in
dB - NOT dBm. Specifically, R1 and R2, do NOT indicate the actual power levels
out of the source ports.
How to make receiver measurements
Press
Measure 1
Then
Advanced
Then choose from the following:
A
Port-1 test port (*1)
B
Port-2 test port (*2)
R1
Port-1 reference receiver (*1)
R2
Port-2 reference receiver (*2)
(* ) indicates the Auto-selected source port for the measurement
Source Port
The FieldFox port to provide the source signal. Choose from the
following:
o
Auto
The FieldFox sets the source port based on the selected receiver.
o
Port 1
Select when measuring transmission at B receiver.
o
Port 2
Select when measuring reverse transmission at A receiver.
Learn more about Raw Receiver Measurements at the FieldFox Supplemental
Online Help:
http://na.tm.agilent.com/fieldfox/help/FieldFox.htm
Multi-Trace Configurations
In NA Mode you can display multiple traces on the FieldFox screen.
