Vector Network Analyzer With 2.8 Inch LCD Display VNA HF VHF UHF UV Vector Network Analyzer Antenna Analyzer + Battery ,Easy to Use

This is a DIY product that provides perfect vector network measurement capabilities in the size of a credit card. It includes a 2.8-inch touch screen and 400mAh battery, which can be used offline for 2 hours. For longer measurement, please connect external power supply or contact me to make a larger battery version. The TX/RX method can measure the complete S11 and S21 parameters. If you need to obtain S12 and S22, you need to manually replace the transceiver port wiring..