Description: brand new and high quality. Feature: This test board is used for learn vector network analyzers. It includes: RLC series and parallel circuit 1 RLC series and parallel circuit 2 33 ohm resistance, SWR standing wave = 1.5 75 ohm resistance, SWR standing wave = 1.5 BSF ceramic trap, center frequency 6.5MHz BPF ceramic filter, center frequency 10.7MHz RC series circuit LC series circuit the capacitor inductance LPF homemade low-pass filter, 3dB bandwidth 400MHz HPF homemade high-pass filter, 3dB bandwidth 500MHz short circuit calibration circuit open circuit calibration circuit 50 ohm load calibration circuit straight through 10dB attenuation circuit 3dB attenuation circuit Each set of functional circuits. Measuring 6.5M Ceramic Notch with NanoVNA-F. Specifications: Item Type: Tester Board Material: PCB Board Size: Length: 100mm/3.9in Color: Green Quantity: 1 Pc Note: No retail package. Transition: 1cm=10mm=0.39inch Please allow 1-3mm 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 Tester Board 2 x Adapter Cable