Features:
- 50KHz-4.4GHz handheld vector network analyzer
- Compact size makes it portable; fast to work in an accurate way
- 1001 scan points: present more measurement details and avoid missing key information
- 7" IPS highlight LCD screen, capacitive touch to control
- 100dB dynamic range: The well-designed RF front-end circuit has an optimized noise floor to ensure accurate and reliable measurements
- Built-in 18650 lithium battery's endurance time reach 4 hours
- Powered through USB type-c interface. 5V/2A charger is recommended
- Built-in 8GB memory card to store calibration status, screenshots and snp files
- Frequency range 50K-4.4GHz: Covered frequency bands include MF/LF/HF/VHF/UHF; can measure all kinds of antennas and filters, amplifiers, attenuators, cables, duplexers, couplers, etc.
- 4 buttons + capacitive touch to complete all operation. All-metal casing can effectively shield electromagnetic interference
- One-hand operation mode is enabled
- Ergonomically designed with back support
- The excitation power is adjustable from -42dBm to -12dBm. Suitable for measuring the input impedance of amplifiers
- N-type interface makes the product stable and durable
- With TDR function, this device can be used to measure cable lengths and check cable breaks
- Variable IF bandwidth: 7 kinds of IF bandwidth are available, of which large bandwidth is suitable for fast scanning, and small bandwidth can significantly reduce measurement noise
- Large-capacity storage: Equipped with 12 save/recall slots, which can quickly save/recall the calibration state. It also supports to save the calibration status as a file. The amount of storage is limited only by the capacity of memory card
- Convenient human interface
- Support logarithmic amplitude, phase-frequency diagram, group delay, Smith, polar coordinate, linear amplitude, VSWR, real part/imaginary part, resistance/reactance, quality factor and other display formats
- Quickly set start and stop frequencies, electrical delay, excitation power, sweep points and average coefficients
- Virtual U disk function: use a USB Type-C data cable to connect to your computer to access the files in the memory card (cannot take screenshots in this mode). This method can also be used for firmware upgrade

Specifications:
- Frequency range: 50kHz~4.4GHz
- RF output power: -42dBm to -12dBm (1dB step)
- RF interface form: N-type female connector (with N to SMA adapter)
- RF input power: 0dBm Max (DC<5V)
- Frequency accuracy: <±1ppm (<140MHz); <±5kHz (>140MHz)
- S21 dynamic range: 75dB (<3GHz); 60dB (>3GHz)
- S11 dynamic range: 50dB (<3GHz); 40dB (>3GHz)
- Scan points: 1001 (can be set to 101-1001)
- Scanning speed: 400 points/second (f>140MHz)
- IF bandwidth: 12.5kHz by default (optional 6.25k/3.12k/1k/300Hz/100Hz/30Hz)
- Smoothing: arithmetic mean (average coefficient: 1~25 times)
- Number of traces: 7 (4 measurement traces, 2 reference traces, 1 TDR trace)
- Number of markers: 8
- Calibration state storage number: 12 groups (supports file storage to internal memory card)
- Storage capacity: Built-in 8GB memory card
- Display: 7" high-brightness IPS LCD screen (resolution: 1024x600)
- Operation mode: capacitive touch + physical button
- Local screenshot: support
- Power consumption: 5W
- Battery life: 4 hours (50% screen brightness)
- Battery: two built-in 18650 lithium batteries (3.6V/3350mAh x 2)
- Charging/Data Interface: USB Type-C
- Charging voltage: 4.7V~5.5V (5V/2A charging recommended)
- Power supply output: USB 5V/1A
- Shell material: iron
- Working temperature: 0℃~45℃
- Dimensions: 190 x 130 x 30mm/7.5 x 5.1 x 1.2" (without size of RF interface)
- Weight of main unit: 1.15KG/2.5LB

Package include：
SV4401A Machine *1
N Male to SMA Female Adapter *2
3 pieces Gold plated SMA LOAD / OPEN / SHORTCalibration Kit *1
SMA Female to SMA Female Connector *2
SMA Male to SMA Male Connector *1
50cm RG316 Cable *2
Usb-type-c Cable *1
Bag *1