1. Main Application: Frequency test card demo kit is used for learning vector network analyzer VNA, calibration, and learning. 2. Circuit Resistance and Trace Filter: RLC series parallel circuit 1. RLC series parallel circuit 2. 33 ohm resistor, SWR standing wave = 1.5. 75 ohm resistor, SWR standing wave = 1.5. BSF ceramic notch filter, center frequency 6.5 MHz. BPF ceramic filter, center frequency 10.7 MHz. 3. Circuit Capacitance Inductance Filter: RC series circuit. LC series circuit. Capacitance. Inductance. LPF self-made low-pass filter with a 3 dB bandwidth of 400 MHz. HPF self-made high-pass filter with a 3 dB bandwidth of 500 MHz 4. Calibration Circuit and Attenuation Circuit: Short circuit calibration circuit. Open circuit calibration circuit. 50 ohm load calibration circuit. Straight through. 10 dB attenuation circuit. 3 dB attenuation circuit. 5. Package List: The package includes 1x RF test card, 2 x 20cm adapter cable, providing you with a great user experience. Item Type: RF Test Card Product Material: PCB Weight: Approx. 49 g / 1.7 oz Adapter Cable Length: Approx. 20 cm / 7.9 inches 1x RF Test Card 2 x Adapter Cable