Simple and practical pc control software, you can export touchstone (snp) files for various radio design and simulation software through pc software. The improved frequency algorithm can use the odd harmonic extension of si5351 to support the measurement frequency up to 900mhz. The metal shield is designed to reduce the external interference and improve the measurement accuracy. the 50535-300mhz frequency range of the si5351 direct output provides better than 70db dynamic. This is a practical DIY product that provides perfect vector network measurement capabilities, lightweight and portable and portable. Stand-alone, 2.8-inch LCD display, portable battery or USB powered, and can be used offline for 2 hours.