Related Manuals for BHI NEMS
Summary of Contents for BHI NEMS
- Page 1 NEMS Operation and Installation Manual 1077-102D Issue A NEMS operating manual Page 1...
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Page 2: Important Information
Furthermore, bhi Ltd. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of bhi Ltd. to notify any person of such revision or changes. Page 2... -
Page 3: Table Of Contents
Power connection 3. Operation Setup and operation 4. Specification Specifications 5. Troubleshooting Troubleshooting guide 6. Other bhi products NES10-2 dsp speaker NES5 dsp speaker NEIM1031 In line module NEIM1031 In line module accessories DSP modules 1042 switch box Audio adapters... -
Page 4: Overview
It is suitable for use in many applications where high background noise and interference mean that you cannot clearly hear what is being said. The NEMS enables the user to listen and concentrate “stress-free”. The NEMS is compact and easy to install. It incorporates DSP technology and is fully adaptive to any change in noise levels and interference, requiring no further adjustment. -
Page 5: Audio Dsp Noise Cancellation
1.3 Audio DSP Noise cancellation. The bhi DSP processes the incoming audio signal and then differentiates the speech from the noise. The unwanted noise and interference are then attenuated to leave only the speech. The following diagrams are taken from actual audio signals and illustrate how the audio signal is being processed. -
Page 6: Unpacking
1.4 Unpacking Check that the following items are included in the package: NEMS Speaker complete with mounting bracket. • Audio lead • Customer feedback card • Please report any missing items or damage to your supplier as soon as possible. -
Page 7: Installation
2. Installation 2.1 Overview The following diagrams show the main components of the NEMS noise cancelling loudspeaker. Audio Fused connections power (beneath cover) lead Noise Bracket cancelling/power locking screw on/off switch Figure 3. NEMS features. NEMS operating manual Page 7... -
Page 8: Mounting
Figure 4. NEMS rear view. 2.2 NEMS mounting The NEMS needs to be mounted so that it can be connected to a 12 - 18V power source, and the radio. Locate a suitable rigid position to mount the NEMS speaker. The NEMS is mounted by holes in the adjustable metal bracket. - Page 9 Push the cover over the connections. Run the audio cable to the radio. Ensure the radio is switched off and connect the 3.5mm mono jack plug to the socket marked extension speaker (using any adapter if required). NEMS operating manual Page 9...
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Page 10: Power Connection
2.4 Power connection The NEMS is fitted with a fused power lead. The NEMS requires 12 - 18V to operate. If the supply voltage is higher than this it will be necessary to use a power adapter (not supplied), to convert... -
Page 11: Operation
The level of noise will drop after a short delay as the DSP adapts to the noise present on the audio signal. Turn the switch off and the noise will return. If the NEMS doesn’t operate as expected the please turn to section 5 - troubleshooting. Note: If a slight pop is heard when the speaker is switched on this is nothing to worry about and is normal. -
Page 12: Specifications
= 0 .2 - 2 .4 W Inp ut re s is ta nc e S ys te m d e la y N o is e re d uc tio n To ne re d uc tio n Page 12 NEMS operating manual... -
Page 13: Troubleshooting
No audio out from the Switch speaker. NEMS Check audio connections Radio switched Switch Audio be Radio on heard now? Switch on NEMS Power LED Check power Connection Audio Faulty Now? Finish Figure 7. Fault finding chart. NEMS operating manual Page 13... -
Page 14: Other Bhi Products
6. Other products Other noise cancellation products from bhi. Visit www.bhi-ltd.co.uk for more information. 6.1 NES10-2 MKII Noise Eliminating speaker. DSP noise cancellation built into a compact speaker unit. the unit provides an easy to install solution to noise reduction Features: •... -
Page 15: Neim1031 In Line Module
DSP module range. NEDSP1061-PCB: Low signal level module NEDSP1061-KBD: Low signal level module controlled by single button keyboard. NEDSP1062 - KBD: Amplified DSP module controlled by a 2 button keyboard. NEDSP1062 - PCB: Basic amplified DSP module NEMS operating manual Page 15... -
Page 16: 1042 Switch Box
6.6 Switch Box Order code: 1042 Switch Box Need to Connect more than one piece of equipment to your bhi Noise Eliminating Speaker or module? 6.7 Adapters and power supplies Power adapters: 1030-UKPA 12V DC UK power adapter 1030-EUPA 12 VDC European adapter... -
Page 17: Other Bhi Products
• Receptions now listen to the film, • Gifts player • Stag and Hen nights without all the jet • engine noise. • etc... Also supplied with carry bag. What will yours say? NEMS operating manual Page 17... - Page 18 Notes: Page 18 NEMS operating manual...
- Page 19 Notes: NEMS operating manual Page 19...
- Page 20 DSP Noise Cancellation bhi Ltd P.O. Box 318 Burgess Hill West Sussex RH15 9NR tel: +44 (0)845 217 9926 fax: +44 (0)845 217 9936 sales@bhi-ltd.co.uk www.bhi-ltd.co.uk Page 20 NEMS operating manual...
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