Feature: 1. Stable performance, excellent quality, mainly used for learning vector network analyzer. 2. Exquisite workmanship, high reliability, compact and light, easy to operate. 3. This RF test board adopts high-quality PCB, with good durability and stability. 4. It can be used with NanoVNA-F to measure 6.5m ceramic notch filter with 3dB bandwidth of 400MHz. 5. It can be used with NanoVNA-F to measure the self-made low-pass filter. Specification: Condition: 100% Brand New Item Type: RF Demo Kit Material: PCB Size: Approx. 10x10cm / 3.9x3.9in Function: 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. 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. Package List: 1 x RF Demo Kit2 x Adapter Cable