?4.3 inch Large Touch screen and powerful function?Handheld Vector Network Analyzer using 4.3-inch IPS TFT LCD screen, with a larger view angle and can be seen clearly in strong outdoor light.which can measure S-parameter, voltage standing wave ratio SWR, phase map, group delay, Smith chart and so on. ?Higher Capacity Battery,and Longer Standby time? Upgraded the large capacity 5000mAh / 3.7V lithium battery, longer standby time, and extended USB interface. Typically, it can be used as a mobile power source to charge Android or Apple phones when not in use. The IC is charged by high current 2A, and the charging time is shorter. ?Upgraded Aluminium Housing ? Standard aluminium shell to protect SMA head and reduce the interference of external electromagnetic wave to instrument. ?Measurement Range? The NanoVNA-F measurement range is 50k-1GHz. The harmonic expansion of the output signal of the clock chip SI5351 is used to measure the frequency to 1000MHz. At 600M-1GHz, the dynamic range of S11 is 40dB (the standing wave ratio is less than 1.02). ?Compact and Powerful?: Upgrade the user program by virtual U disk.Switch to a power switch with a greater sense of operation and a better sense of operation.Support Chinese and English menu switching.