VNA Master MS202xA MM 1
1. Introduction
This manual provides maintenance instructions for the VNA Master MS202xA. It describes the product and provides
performance verification procedures, parts replacement procedures, and a replaceable parts list.
2. Description
The MS2024A and MS2026A VNA Masters are handheld Vector Network Analyzers designed to make accurate vector
corrected 1-port magnitude, phase, and fault location measurements and 1-path, 2-port magnitude and phase measure-
ments from 2 MHz to 6 GHz.
RF immunity rejection up to +17 dBm allows for accurate measurements in RF rich environments. More than 1000
traces and setups can be stored in internal memory and data can be transferred to a computer via Ethernet, USB, or mem-
ory card.
Frequency Ranges
MS2024A 2 MHz to 4 GHz
MS2026A 2 MHz to 6 GHz
3. Recommended Test Equipment
The following test equipment is recommended for use in testing and maintaining the VNA Master.
NOTE: Verify that the test equipment is operating properly before it is used.
Table 1. Recommended Test Equipment
Equipment Critical Specification Recommended Manufacturer/Model
Synthesizer Frequency: 1 GHz with options 2A, 4
(or 5), and 15A Anritsu Model MG3691A
Power Meter Power Range: –70 to +20 dBm Anritsu Dual Channel Model ML2437A
Power Sensor Frequency: 10 MHz to 18 GHz,
Range: –67 to +20 dB Anritsu Model MA2442D
Frequency Reference Frequency: 10 MHz Absolute Time Corp., Model 300
Power Splitter Frequency: DC to 18 GHz Weinschel Model 1870A
Adapter Frequency: 1 GHz
K(m) to N(f) Anritsu Model 34RKNF50
RF Coaxial Cable Frequency: DC to 6.0 GHz
N(m)-N(m), 50 Ohm Anritsu Model 15NN50-1.5C
RF Detector (for Option 5) Frequency: 10 MHz to 20 GHz Anritsu Model 560-7N50B
High Current Test Fixture
(for Option 10) Resistance: 40 Ohm
Power: 5 Watts Anritsu Model T2904
Low Current Test Fixture
(for Option 10) Resistance: 105 Ohm
Power: 1 Watt Anritsu Model T3377
Frequency Counter Frequency: 2 GHz Anritsu Model MF2412B
Open/Short Anritsu Part Number 22N50
Termination Frequency: DC to 18 GHz
Return Loss: 40 dB min Anritsu Model 28N50-2
Termination Frequency: DC to 18 GHz
Return Loss: 40 dB min Anritsu Model 28NF50-2
Offset Termination Frequency: DC to 6 GHz
Return Loss: 6 dB ± .35 dB Anritsu Model SC7424
Offset Termination Frequency: DC to 6 GHz
Return Loss: 20 dB ± 1.0 dB Anritsu Model SC7423
