BHI NEDSP1901-KBD Noise Eliminating DSP Module
SKU Part Number: BHI-NEDSP-1901-KBD
The NEDSP1901-KBD is a direct replacement for the very popular discontinued NEDSP1061-KBD.   This new DSP noise cancelling module...
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£129.95 £108.29
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The NEDSP1901-KBD is a direct replacement for the very popular discontinued NEDSP1061-KBD.


This new 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 pushbutton with LED and audible indication for ease of use. It is supplied as 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 pushbutton interface board. The module is supplied with a fitting kit and general installation instructions plus specific fitting guides for the Yaesu FT-817/FT818 (same as FT-817 info), Kenwood TS-50 and Icom 706 MK II G. 

Other radio install instructions are available in the "Amateur Radio Installs" section for the Yaesu FT-847, FT-857, FT-897, FRG100, Yaesu, Icom 705 bhi NEDSP1901-KBD installIcom 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 may also greatly benefit from this module.  Contact us for more information.

Icom IC705 Install bu Guy Atkins KE7MAV -

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

Installation information: Just four wires are used to connect the module into the audio circuit of your radio/receiver: Audio In, Audio out, 0V and Power. All that's left to do is drill holes to accommodate the switch assembly and label. Fitting kit supplied.

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

The NEDSP1901-KBD low level DSP noise cancelling module can be installed in the USA by the Icom, Yaesu and Kenwood repair specialist Andrew Ruggiero WD8BWW of Mid America Technology.  Andrew Ruggiero WD8BWW at 4129 NE Georgian Dr.Lee’s Summit Mo 64064, USA Tel: 816 223 3246

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


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


We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.


If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:

Click here for returns form

Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.

Warranty Terms and Conditions

Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.

For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.

International Warranty information

Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]