NANOVNA-H Upgraded Version 2.8 Inch TFT 50Khz-1.5Ghz Vector Network Antenna Analyzer MF HF VHF UHF With SD Card Slot Without Card, 4 Inch - 4 Inch

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1. A 4-inch LCD screen is used. Due to the larger screen, there is more PCB space for installing components and batteries2. Use an independent charge pump to power the mixer and add tantalum capacitors, which can further reduce power supply noise3. In order to make it easier for geeks to create more possibilities, UART1 and PC14, PC15 interfaces are drawn on the PCB, which is c...