100% brand new and high quality Feature: RF Demo Kit NanoVNA RF test board, used to learn vector net-work analyzers, including: 1, RLC series and parallel circuit 1 2, RLC series and parallel circuit 2 3, 33 ohm resistance, SWR standing wave = 1.5 4, 75 ohm resistance, SWR standing wave = 1.5 5, BSF ceramic trap, center frequency 6.5MHz 6, BPF ceramic filter, center frequency 10.7MHz 7, RC series circuit 8, LC series circuit 9, the capacitor 10, inductance 11, LPF homemade low-pass filter, 3dB bandwidth 400MHz 12, HPF homemade high-pass filter, 3dB bandwidth 500MHz 13, short circuit calibration circuit 14, open circuit calibration circuit 15, 50 ohm load calibration circuit 16, straight through 17, 10dB attenuation circuit 18, 3dB attenuation circuit Each set of functional circuits. Specifications: Item Type: RF Test board Material: ABS+Metal Size: 100mm/3.9in Color: Green Quantity: 1 PC Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 1 x RF Test Board 2 x Antenna