DSP Noise Reduction System (210-0543) Features Faxback Doc. # 6407 The Radio Shack DSP Communication Noise Reduction System is a computer controlled digital signal processor with a built-in audio amplifier and speaker. It is designed for use with all communication receivers including ham, short wave, HF marine, and CB radios. The DSP (Digital Signal Processing) circuit dramatically reduces heterodynes (annoying tones) and reduces background noise from incoming signals. The system includes these features: Selectable Low-Pass DSP NR (Noise Reduction) Filters - Reject heterodynes and reduce back ground channel noise from communications receivers. 5-Watt Audio Amplifier - For plenty of audio output. External Speaker Jack - Lets you connect an external speaker with a 1/8-inch plug to the DSP to enhance sound. Morse Code (CW) Filters - Allows clean reception of Morse code signals. SSB Bandpass Filters - Help allow clean reception of SSB (single side-band) signals. DSP Indicator - Shows you the optimum input audio level. Output Volume/ Power-On Control - Lets you adjust the volume after you turn on the system. Power On Indicator - Shows you when the system is on. Mounting Bracket - Lets you mount the system in your vehicle. Note: You can power the system from a 12-volt DC power cord source with the supplied power cord or from a standard AC outlet with an optional adapter. (LB/all-7/5/94)