Icom IC-7200 HF/50 Amateur Base Transceiver 100W USA Version The latest IF DSP technology is employed in the IC-7200. While the IC-7200 is an entry-class transceiver, advanced digital features are comparable to higher class transceivers. Waterproof protection technologies that are used in Icom's marine radios are applied to the buttons and knobs on the front panel to provide a measure of protection against water intrusion. *IC-7200 is not waterproof. AGC loop management Distortion and blocking from strong nearby signals are prevented by placing DSP functions inside the AGC loop. The AGC time constants are selectable from fast, slow and off for each operating mode. Digital IF filter Optional filters will never be required for the IC-7200. The built-in digital filter allows you to flexibly select the filter width and shape from soft and sharp* and provides cutting-edge filter characteristics. *Filter shape is selectable for SSB and CW modes only. Manual notch filter The manual notch filter delivers more than 70dB of attenuation. Strong interring tones will be eliminated without adversely affecting the AGC loop performance. ON the bottom right of the front panel, a dedicated control knob adjusts the notch filter frequency.