TIMEWAVE DSP-9+ Audio Noise Reduction Filter Instruction Manual
Learn how to improve your amateur radio voice, data and CW operation with the DSP-9+ Audio Noise Reduction Filter. This operating manual, version 3.0A from Timewave Technology Inc., provides installation, operation, troubleshooting, and warranty information for the DSP-9+ which uses digital signal processing technology to reduce noise and interference in your radio reception. Get up to 50 dB noise reduction for heterodynes with this powerful filter.