Feature:1. The working frequency range of the RF attenuator module is 1M3.8GHz, with 0.5dB stepping and low insertion loss.2. Manually adjust the control through the 6position pin header on the board, digitally programmable.3. The use of 1.6mm thick doublesided plates and the whole process of spraying tin to ensure good passing performance of large and small currents.4. Large heat dissipation area, has better service life, no need to worry about heat generation during operation.5. Onepiece design, the exterior of the module is glossy without burrs, smoother installation and use.Specification:Item Type: RF Attenuator ModuleMaterial: PCBOperating Frequency Range: 1M-3.8GHzMaximum Input Signal Power: 20dBmAttenuation Multiple and Step Length: Attenuation multiple 0-31.5dB, step 0.5dBInsertion Loss: Less than 2.0dBAttenuation Control Interface: Manual adjustment control through the 6-pin header on the boardInput and Output Impedance: 50Power Supply: Typical value +5V, maximum cannot exceed +7VInput and Output Interface: SMA interface female screw inner hole.Package List:1 x ModuleNote:Do not use over frequency.