NanoVNA-F V3 is a Portable Vector Network Analyzer (VNA) with frequency range of 1MHz6GHz. The S21 dynamic range of NanoVNA-F V3 is 65 dB, while the S11 dynamic range is 50 dB. HamGeek NanoVNA-F V3 1MHz-6GHz Portable Vector Network Analyzer VNA for MF/HF/VHF/UHF/SHF Antenna.