●50 KHz - 1.5 GHz: The improved frequency algorithm can be used to support a measuring frequency of up to 1.5 GHz. The direct output frequency range of 50k-300MHz of si5351 provides dynamics above 70dB. The extended 300M-900MHz band provides dynamics of more than 60dB and the 900M-1.5GHz bandwidth provides dynamics above 40dB ●【Vector Network Analyzer】This NanoVNA-H4 has a 4-inch LCD touch screen. 1950mAh battery rechargeable or USB powered for portability. It can last longer working time. Provides TX/RX measurement and allows you to determine full S11 and S21 parameters. If you need to get S12 and S22, you need to change the wiring for the transceiver port manually ●ABS Shell & High Precision: A new vector network analyzer using ABS shell. Reduces external interference and improves measurement accuracy. Support Time Area Analysis Function (TDR) Support to connect your Windows computer to USB-C smartphone to operate on a large screen ●Simple and Practical PC Control Software: The unit is designed to fit the original equipment (OE) fit, form and function of a simple and practical PC control software, and we can export the Touchstone (SNP) files of various radio designs and simulation software via PC software ●【Package List】1 X NanoVNA-H4, 1 X USB Type-C Data Cable, 1 X Type-C to Type-C Cable, 2 X 15cm SMA Male to Male RG316RF Cable, 1 X SMA Male Calibration Kit - OPEN, 1 X SMA Male Calibration Kit - SHORT, 1 X SMA Male Calibration Kit - LOAD