Feature:1. MULTI FUNCTION: This active filter board can be designed as high pass, low pass, band pass, or bandpass filter as required.2. SIMPLE DESIGN: The active filter module also has a specially designed software that can easily and flexibly design various types of filters.3. HIGH ACCURACY: The active filter board has high frequency accuracy and high Q value, integrates with 1000pF5% capacitance.4. ADJUSTABLE DESIGN: This filter board is frequency, gain and Q value adjustable, more practical and useful.5. WIDE RANGE: The power supply voltage range of this filter module is 5 to 18V, ensuring a wider range of applications.Specification:Item Type: Active Filter BoardMaterial: PCBModel: UAF42Power Supply Voltage Range: 5-18VApplication: Ham Radio AmplifierFeatures:1. Use 5-18V power supply power reverse connection prevention circuit, prevent incorrect connection and burning of the board.2. Cutoff frequency, center frequency, gain adjustable, Q value adjustable.3. The input can be connected in phase or in reverse, which is convenient for different requirements.4. Output is amplified through a jumper cap strobe output bandpass, low pass, high pass, or filtered..Package List:1 xActive Filter Board