BHI NEDSP1901-KBD - DSP Noise Cancelling Module

The NEDSP1901-KBD is a low-level audio DSP noise cancelling module which can be installed into many radio transceivers and receivers. It is a direct replacement for the popular but now discontinued NEDSP1061-KBD module. This pre-wired DSP noise cancelling module incorporates the latest bhi DSP noise cancelling technology and provides up to 40dB of noise cancellation to greatly improve noisy speech signals. The module is controlled by a single push button with LED and audible indication for ease of use. It is supplied as a pre-wired retrofit style module and can be integrated directly into the low-level audio path of your receiver, transceiver or audio system, giving you excellent DSP noise cancellation and greatly improved speech quality. The module features DSP on/off and up to 8 levels of DSP filtering via a small push-button interface board. The module is supplied with a fitting kit and general fitting instructions, plus specific fitting guides for the Yaesu FT-817/FT818 (same info for FT-817), Kenwood TS-50 and Icom 706 MK II G.

Other radio installation instructions can be found in the "Amateur Radio Installations" section for the Yaesu FT-847, FT-857, FT-897, FRG100, Yaesu, Icom 705 bhi NEDSP1901-KBD install, Icom 736/738, Icom 765, Icom IC-725, Icom IC705, Realistic DX-394, Alinco DX-77, Alinco DX-SR8T, Kenwood TS-430, Kenwood TS-440, Kenwood TS-850, Collins KWM-2, Eton E1XM. Other radios could also greatly benefit from this module. Please contact us for further information.

Icom IC705 installation by Guy Atkins KE7MAV - https://qrper.com/2021/08/upgrading-the-icom-ic-705-with-bhis-amazing-noise-reduction-module/

For commercial HF radio applications, the basic NEDSP1901-PCB module is probably more suitable.

Installation Information: Only four wires are used to connect the module to the radio/receiver audio circuit: Audio In, Audio out, 0V and Power. All that remains is to drill holes to accommodate the switch assembly and label. Fitting kit provided.

Yaesu FT-817/818 Note: Unlike the previous NEDP1061-KBD DSP noise cancelling module, this new direct replacement only fits into the front position of the Yaesu FT-817/818. If you have extra filters installed in your FT-817/818, you cannot fit the NEDSP1901-KBD module inside your radio. In this case you might consider the new compact DSP noise cancelling speaker NES10-2MK4.

For commercial HF radio applications, the basic NEDSP1901-PCB module is probably more suitable.

Features

• Fully adaptive to changing noise environments
• High performance audio processing
• Virtually no speech signal distortion
• 8 to 40 dB of noise cancellation - Up to 65 dB of tone reduction
• 8 filter levels
• LED indication of DSP level and status
• Small size 28 mm x 37 mm x 9 mm
• Integrated input and output level controls
• Single push button operation