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1.1  bhi 

bhi Ltd are specialists in the design, development and manufacture 

of Digital Signal Processing (DSP) noise cancelling products and 

other specialist electronics. 

1.2  Introduction

The bhi  noise eliminating speakers greatly improve the clar-

ity and intelligibility of speech in radio communications.  They 

are  suitable  for  use  in  many  applications  where  high  back-

ground  noise  and  interference  mean  that  you  cannot  clearly 

hear  what  is  being  said.    The  NES10-2  MK3  and  NES-5 

enable  the  user  to  listen  and  concentrate  “

stress-free

”.   

 

Suitable  applications  where  the  speakers  will  be  of  great 

benefit  to  the  user  include  radio  amateur  base  stations, 

CB  radios,  two-way  radios,  HF  radios,  marine  communica-

tions,  scanners,  taxi  base  stations  and  hands-free  car  kits. 

 

The  NES10-2  MK3  and  NES-5  are  compact  and  easy  to 

install.    They  incorporate  DSP  technology  and  are  fully 

adaptive  to  any  change  in  noise  levels  and  interference. 

 

On the NES10-2 MK3 the noise cancelling can be switched on or 

off and there are 8 user selectable noise cancellation levels, whilst 

the NES-5 is a plug and go  model which has a fixed level of noise 

cancellation.

1. 

Overview

Page

 

28

DSPKR 

10 Watt RMS DSP noise cancelling speaker

10 Watts RMS audio output power 

Fully Adaptive noise cancelling 9 - 24dB

7 user selectable noise cancelling levels

Simple pushbutton control of DSP functions

Audio level indicator to optimise filter function

Separate volume control

Filter level store function

Sleep mode to conserve battery power

Easy to install with adjustable mounting bracket

10 – 16Vdc operation

Auxillary output socket for headphones or loudspeaker

Up to 6 Watts input

Dims: 135(W) x 130(H) x 85 (D)mm

Weight 0.85Kg

Supplied with 1030-FPL fused DC power lead and user manual

The 

DSPKR

 is a new, quality, 

amplified DSP noise cancellating 

speaker from bhi that really lets you 

hear that signal!

Works on all radio bands and is 

easy to install.

Features:

Summary of Contents for NES-5

Page 1: ...Operating Manual DSP Noise Cancelling products 1030 103D Issue H 04 10 Page 32 DSP Noise Cancelling products bhi email sales bhi ltd com www bhi ltd com Tel 44 0 845 2179926 Fax 44 0 845 2179936 bhi L...

Page 2: ...in the European Union and other European countries with separate collection systems This marking shown on the product or its literature indicates that it should not be disposed of with other house hol...

Page 3: ...mation Page 30 Every noise eliminating speaker comes with a 12 month guarantee against defective materials and workmanship If you do have a problem then please refer to the troubleshooting section 4 I...

Page 4: ...munications especially amateur radio two way radio and HF radio It is suitable for all bands and is easy to set up and control via the microprocessor controlled pushbuttons on the front of the speaker...

Page 5: ...are fully adaptive to any change in noise levels and interference On the NES10 2 MK3 the noise cancelling can be switched on or off and there are 8 user selectable noise cancellation levels whilst the...

Page 6: ...essing Page 27 NEDSP1062 Amplified DSP modules Amplified version of the low level audio NEDSP1061 modules except they feature an integral 2 5W rms power amplifier They are ideally suited for fitting i...

Page 7: ...inputs for low level signals Need to Connect more than one piece of equipment to your bhi Noise Eliminating Speaker or module Switch box front view Switch box rear view The NEDSP1061 modules again fe...

Page 8: ...1 MKII now comes with 20 more audio and a new filter select knob Noise cancellation 9 35dB Audio input output Line level input output Output volume control Input level control with LED Power on off wi...

Page 9: ...he sensitivity level of the NES10 2 MK3 so that there is no distortion and the speaker is not being overdriven Page 24 Audio Adaptors See tables below for details Adaptors for connecting NES10 2 MK3 t...

Page 10: ...ptors see section 5 This socket can also drive another loudspeaker When a connector is inserted into this socket the internal speaker of the NES102 MK3 is muted Page 23 Optional Extras The following i...

Page 11: ...the mounting plate to prevent it from marking surfaces Page 22 See FAQs on our website for further information and help What adjustments do I need to make during use Apart from changing the filter lev...

Page 12: ...move to the next step If the problem is cured try removing the previous ferrite s Shorten ing the power lead may also improve the situation Figure 8 Power lead suppression Fit another ferrite at the o...

Page 13: ...o lead adapters are available from bhi A2 metre audio extension lead is available if your equipment is more than 2m away from the NES10 2 MK3 see section 5 5 Set the rotary noise cancellation filter l...

Page 14: ...y control on the NES10 2 MK3 fully counter clockwise or thereabouts Now tune your radio communications equipment until you have a good clear signal with good volume The volume from the speaker is low...

Page 15: ...radio communication equip ment on and that you have a signal for the speaker to process To verify this remove the audio connector from the external speaker socket on your equipment Check that the LED...

Page 16: ...DC power 12 24V dc 500mA Size 110 x 65 x 55mm Weight 200gms Page 17 3 4 NES 5 basic set up procedure and operation 1 Connect the supplied in vehicle power lead bhi power supply or a suitable power ad...

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