SV4401A is a Handheld Vector Network Analyzer (VNA) with a measurement frequency range of 1MHz to 4.4GHz. Network analyzers can measure parameters with a dynamic range of 50dB for S11 and 75dB for S21.

SV4401A VNA is suitable for testing various types of antennas in the MF/HF/VHF /UHF/SHF frequency bands, including shortwave antennas, ISM band antennas, WiFi antennas, Bluetooth antennas, GPS antennas, and more. It can also be used to measure RF components such as filters, amplifiers, attenuators, cables, power dividers, couplers, and duplexers, and supports multiple display formats including amplitude-frequency curves, phase-frequency curves, VSWR (Voltage Standing Wave Ratio), Smith charts, polar plots, group delay, and more. Additionally, SV4401A features TDR functionality.

SV4401A Portable Vector Network Analyzer adopts an all-metal casing design that effectively shields against electromagnetic interference. With dimensions of 190mm x 130mm x 30mm, it is compact and portable and includes a rear stand for convenient desktop use. The device uses N-type RF connectors and comes with N-to-SMA adapters and high-quality SMA extension cables for easy connection to various test items.

The 7-inch high-brightness IPS capacitive touchscreen display ensures clear visibility of screen content even in outdoor settings. SV4401A is equipped with two 3350mAh 18650 lithium batteries, providing over 3 hours of battery life.