56.56 (-0.12) 
NRU-600 DSP Noise Reduction Unit
The NRU-600 is an advanced audio signal processor that provides maximum flexibility to eliminate or reduce most types of interference from voice, CW and data transmissions. The NRU-600 connects to the audio output of a receiver, transceiver, or other source.
Benefits/Features:
- Superior noise reduction on audio signals
- Both frequency domain and tome domain reduction algorithms are provided
- Manual and automatic noise reduction control
- Operates on radio receiver or other audio
- High speed digital signal processor (DSP)
- All modes operate simultaneously
- Automatic notch filter
- Built in voice modulation recognition