Compact handheld vector network analyzer for field and lab use Standalone operation with a 3.98 inch LCD display and a portable builtin 3000mA battery; supports up to 2A charging Broad frequency coverage with dynamic range si5351 direct output 50K300MHz: better than 70dB dynamic extended 300MHz900MHz: better than 60dB dynamic 900MHz1.5GHz: better than 40dB dynamic Flexible measurement capabilities Default firmware designed for antenna performance measurements TX/RX method can measure the full range of S11 and S21 parameters To measure S12 and S22, transceiver port wiring must be manually replaced PC data access and visualization PC software can connect to the device and extract data for display on a computer Practical use scenarios Field antenna performance verification and tuning in mobile or remote locations RF component testing and cable/connector analysis for quick fault isolation Site surveys and installation debugging to validate performance before commissioning Key attributes at a glance Function: vector network measurement in a compact handheld form Compatibility: supports TX/RX S11 and S21; S12/S22 require manual port wiring change Size and portability: small handheld unit with builtin display and battery Performance: multiband dynamic range as specified, suitable for antenna and RF tests Connectivity: data extraction and display via PC software