1. A 4-inch LCD screen is used. Due to the larger screen, there is more PCB space for installing components and batteries
2. Use an independent charge pump to power the mixer and add tantalum capacitors, which can further reduce power supply noise
3. In order to make it easier for geeks to create more possibilities, UART1 and PC14, PC15 interfaces are drawn on the PCB, which is convenient for DIY expansion
4. ABS shell, can effectively protect SMA connectors and buttons
5. DC dimming is added, it can be seen more clearly when used outdoors, and it is more comfortable to use indoors.
6. Optimized the bridge to make full use of the Si5351s harmonics. Now the 5th harmonic can be used to measure to 1.5GHz;
7. When the fundamental wave is used, the output level of CH0 is increased to 0dBm, and the reflection measurement is more accurate;
8. Solve the previous abnormality of NanoVNA-H near 6MHz
9. The redesigned power management circuit further reduces power noise, reduces USB power interference, reduces charging current, and protects the battery
10. Optimized PCB layout, accommodating 1950mAh battery, more than 8 hours of use

packing list:
1. NanoVNA host x 1 (including 4-inch touch screen, 2000mAh battery)
2. 15cm SMA male to male RG316 RF cable x 2
3. SMA female to female connector x1
4. SMA simple calibration kit SHORT x1
5. SMA simple calibration kit OPEN x1
6. SMA simple calibration kit LOAD x1
7. USB Type-C data cable x1
8. Type-c to Type-c x1 supports connection with most Android phones
9. One pick