Features: The PC control software can export Touchstone (snp) files, which can be used for various radio design and simulation software. The improved frequency algorithm can use the odd harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The main advantage is that users with strong hands-on ability can open the machine to view the circuit structure. However, when measuring frequencies above 300M, it is easy to be interfered by other signals. So this product is recommended for learning principles and use at lower frequencies. Small and portable, easy to use, this project aims to provide an RF gadget but useful instrument for enthusiast. It is mainly for the study of customers who can DIY, you need to prepare the SMA cable yourself. Specifications: Material: Plastic +Metal Color: Black Measurement Frequency: 50KHz~900MHz RF Output: -13dbm (Maximum -9dbm) Frequency Accuracy: <0.5ppm Measurement Range: 70dB (50KHz-300MHz), (50dB (300M-600MHz), 40dB (600M-900MHz) enable extended firmware) Port SWR: <1.1 Display: 2.8 inch TFT (320X240) USB interface: USB type-C Communication Mode: CDC (Serial) USB: 5V 120mA Battery: 3.7V Battery Number of Calibration Points: 101 (Fixed) Number of Scanning Points: 101 (Fixed) Size: 85.5X 54X 20mm / 3.4X 2.1X 0.79in (without connectors and switches) Package weight: 250g Package Includes: 1X Nanovna-H Host (including 650mah Battery), 1X Usb Type-c Data Cable 1X 25cm Usb Typec-typec Data Cable 2X 20cm SMA Male To Male Rg174 Radio Frequency Cables 1X Set Of SMA Calibration Kit (o/s/l, Male Header Is Issued By Default, Please Note Or Contact Me If You Need Female Header) 1X SMA Female To Female Connector 1X for Touch Screen Paddle with A Lanyard note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.