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Chapter 4 — VNA Measurements
4-1
Introduction
This chapter describes some of the VNA measurements that can be made with the
VNA Master. It includes both 1-port and 2-port measurements (coaxial and waveguide) and
features the key considerations that you are required to make regarding calibration types,
IF Bandwidth (IFBW), power levels, graph types, and graph formats.
This chapter describes the VNA Measurements view.
Measurements view.
As stated in the first chapter of this manual, all references to Vector Network Analyzer and
references to instruments that are two-port, 1-path vector network analyzers include both the
MS20xxB compact VNA Master and the S412E LMR Master models.
Select Measurement Type – VNA versus Field
Change between the Field Measurements view and the VNA Measurements view by pressing
the Shift key followed by the System (8) key, and then by pressing the Applications Options
soft key (submenu key). Press the Meas Menu soft key to toggle between Field and VNA.
Touch Screen Trace Features
Refer to section
"Touch Screen Trace Features" on page
Markers on a Touch Screen
Refer to section
"Markers on a Touch Screen" on page
4-2
1-Port Cable Measurement
Introduction
When cables are installed in the field, one end of the cable is often too far away to allow you to
conduct a full 2-port measurement. The 1-port measurement is an ideal technique for this
situation.
Setup Considerations
To conduct a 1-port cable measurement, the first step is to set the frequency range of interest
and the desired number of points in the sweep. Then set the test port power to high and
perform a full S
Open-Short-Load (OSL) calibration by using the appropriate connector
11
type. Connect the easily accessible side of the cable to Port 1 of the VNA Master, and connect
a short or an open to the far end of the cable. Finally, set up the instrument to display the
measurement results in the desired format.
Vector Network Analyzer MG
Chapter 5
2-8.
PN: 10580-00289 Rev. K
describes the Field
2-3.
4-1
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