Latest features: with latest 4.3 version, Nanovna-H4 is added a brand new panel plus added a new SD port for data storage(support up to 32GB memory card, not included in the package). The NanoVNA-H4 vector network analyzer is a Hugen Origin that provides perfect vector network measurement capabilities, and handheld, stand-alone with 4-inch LCD display, portable with 1950mAh battery powered or USB powered The improved frequency algorithm of NanoVNA-H4 can use the odd harmonic extension of si5351 to support the measurement frequency up to 1.5GHz. The 50K-300MHz frequency range of the si5351 direct output provides 70dB dynamic, The extended 300M-900MHz band provides 60dB of dynamics, and the 900M-1.5GHz band is 40dB of dynamics;The metal is designed to reduce the external interference and the measurement accuracy The default firmware main function for NanoVNA-H4 vector network analyzer is used for antenna performance measurement. The TX/ 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 Using PC software NanoVNASaver, NanoVNA-H4 antenna analyzer can connect to a NanoVNA and extracts the data for display on a computer, and for saving to files. export (snp) files for radio design and simulation software through PC software NanoVNA-H4 (with battery) x1, USB Type-C data cable x1, Card Reader with 32GB -SD Card,30mm SMA male to male RG174 RF cable x2, SMA simple calibration kit x1, SMA female to female connector x1. NOTE: the Nanovna is only compatible with the low-speed and supports SPI mode SD cards for now. Colour:black Material:Metal Package Contents: 1 set x Spectrum Analyzers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.