Radio Frequency Attenuators Coaxial fixed attenuator with Q9/BNC interface; attenuation range: 1dB, 2dB, 4dB, 5dB, 6dB, 3dB, 15dB, 20dB, 40dB, 30dB, 7dB, 8dB, 10dB, 50dB; frequency: DC to 3GHz, 4GHz; power: 10W