_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ NanoVNA V2 Plus4 (S-A-A-2) is a 4GHz Transmission/Reflection vector network analyzer, measuring the S11 Reflection coefficient and the S21 Transmission coefficient of a high frequency network; Not only testing standing wave impedance of the antenna, but also can debug the duplexer, the insertion loss of the filter, the isolation and testing the attenuation of the cable, shorten the coefficient, the phase, the amplification of the antenna amplifier. Compared to the previous NanoVNAs (10KHz-1.5/3GHz), NanoVNA V2 vector network analyzer provides a 50KHz-4GHz ultra-wide frequency range with an improved precision and accuration, Moreover, the System dynamic range for this VNA is up to 90dB dynamic range (1GHz) and up to 80dB dynamic range (3GHz); Plus4 VNA has improved shielding that achieves high dynamic range with an aluminum enclosure. The scanning speed of NanoVNA V2 antenna analyzer increases by 4 times (400 points/sec) than previous V2 versions; Along with support PC software control, like Windows(above 7), Linux, MacOS, the VNA can be more compatible with PC and antenna measurements, when measuring the frequency. Flip Display,For your using convenience, you can flip the display as the following steps: Menu - Display - Flip Display. Upgraded vector network analyzer is contained with a 3200mAh/3.7V lithium rechargeable battery with loger operating time and lasting battery life. Also there are battery charge LED indicators at the back of the VNA which are the battery fuel gauge, the one that is closest to the CH1 port connector is the lowest charge level indicating less than or equal to 25%. Colour: Silver Material: Metal Package Contents: 1 set * Spectrum analyzer Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_