Operation In Modes - Keysight N9923A Service Manual

Theory of Operation

Operation in Modes

Operation in Modes
The N9923A FieldFox RF Vector Network Analyzer User's Guide (Part Number
N9923-90001) describes the various modes of operation and describes the
user interface for each mode. The following information describes how the
hardware is used in the various modes to make measurements.
There are four basic modes of operation:
— CAT—Cable and Antenna Test
— NA—Network Analyzer
— VVM—Vector Voltmeter
— PM—Power Meter
CAT, NA, and VVM modes make similar measurements but are separate modes
of operation.
Additional modes of operation may be created as new firmware is developed.
The four basic modes listed above represent how the hardware may be used to
make basic measurements. Additional modes will provide customized user
interfaces but will not change how the basic measurements are performed.
The following table indicates port functionality for each mode of operation and
the required options. See
details.
Table 5-1
Measurement
Mode
CAT
(Return Loss)
CAT
Insertion Loss
NA
S11
NA
S12
NA
S21
NA
S22
VVM
1-Port
VVM
2-Port
Keysight N9923A Service Guide
"Service Related User Operations"
Port Function by Mode
PORT 1 PORT 2
Port Port
Input/Output Inactive
Output Input
Input/Output Inactive
Input Output
Output Input
Inactive Input/Output
Input/Output Inactive
Output Input
in Chapter 8 for
Required
Option(s)
305
305
None
(standard)
122
None
(standard)
122
308
308
5-19