Feature: 1. The working frequency range of the RF attenuator module is 1M‑3.8GHz, with 0.5dB stepping and low insertion loss. 2. Manually adjust the control through the 6‑position pin header on the board, digitally programmable. 3. The use of 1.6mm thick double‑sided 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. One‑piece design, the exterior of the module is glossy without burrs, smoother installation and use. Specification: Item Type: RF Attenuator Module Material: PCB Operating Frequency Range: 1M-3.8GHz Maximum Input Signal Power: 20dBm Attenuation Multiple and Step Length: Attenuation multiple 0-31.5dB, step 0.5dB Insertion Loss: Less than 2.0dB Attenuation Control Interface: Manual adjustment control through the 6-pin header on the board Input and Output Impedance: 50Ω Power Supply: Typical value +5V, maximum cannot exceed +7V Input and Output Interface: SMA interface female screw inner hole. Package List: 1 x Module Note: Do not use over frequency.