For NanoVNA 50KHz-900MHz Vector Network Analyzer UHF VHF VNA HF Antenna Analyzer. To get for S12/ 2 curves, manually swap the TX/RX ports. 1 for NanoVNA(with 400mAh battery). The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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