RF Demo Kit RF Tester Board Attenuator Module Vector Network Analyzer Board Condition: 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