BHI NEDSP1061-KBD User manual

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NEDSP1061-KBD Operating Manual
Important Information
Copyright
Thispublication,includingallphotographsandillustrations
isprotectedunderinternationalcopyrightlaws,withallrights
reserved. Neitherthismanual,noranyofthematerialwithin,
may be copied or reproduced without the written consent
ofbhi Ltd.
Disclaimer
Theinformationinthisdocumentissubjecttochangewithout
notice. bhi Ltd. makes no representations or warranties
with respect to the contents hereof and specifically
disclaims any implied warranties of merchantability or
fitness for any particular purpose. Furthermore, bhi Ltd.
reserves the right to revise this publication and to make
changes from time to time in the content hereof without
obligationofbhiLtd.tonotifyanypersonofsuchrevisionor
changes.
ThefittingofthebhiNEDSP1061-KBDmodulemayinvolve
the removal of small surface mount components and the
drilling out of the transceivers’ case. This should only be
carried out by a qualified engineer. bhi accepts no
responsibilityforthefittingorinstallationoftheNEDSP1061-
KBD module and are not liable for any damage to
equipment caused by its fitment. Fitting this module may
invalidateyourwarranty.
Allattemptshavebeenmadetoensurethatthisinformation
is up to date. It is possible that these instructions contain
errors,ortheequipmentisslightlydifferent totheoneused
tocompilethisinformation.Inallcasesitisuptotheinstaller
toensurethatthe module isfittedcorrectly.

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NEDSP1061-KBD Operating Manual
Packing List:
Please check the contents of the box.
•Operating manual
•NEDSP1061-KBD assembly
•‘Z’ bracket
•Self adhesive mounting pads
•bhi NEDSP keyboard label
Toinstallthismoduleyouwillneedthefollowingadditional
items:
•service manual/circuit diagram of the equipment in
which the module is to be installed.
•all the appropriate tools to disassembling the
equipment
•suitable soldering iron and bits for working with
surface mount devices.
Before attempting to fit this module study this manual
thoroughly along with the service manual for your
equipment.

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NEDSP1061-KBD Operating Manual
1. Introduction
1.1 NEDSP1061-KBD features 6
1.2 Limitations 6
1.3 Audio DSP noise cancellation 7
2. Module description
2.1 Module layout 8
2.2 Connections 8
2.3 Electricalcharacteristics 9
2.4 Controls 9
2.4.1Input level 9
2.4.2Output level 9
2.4.3Beep volume level 9
2.4.4Overload LED 9
2.5 Modulemounting 10
3. Installation 11
3.1 Introduction 11
3.2 Circuit location 11
3.3 Fitting 12
3.3.1Audio connections 12
3.3.2Powerconnections 13
4. Setup 14
5. Troubleshooting 15
6. Operation 16
6.1 Introduction 16
6.2 Operation 16
6.3 Demonstration mode 17
6.4 Notes about noise reduction 18
6.5 Noise reduction level 18
Contents

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NEDSP1061-KBD Operating Manual
7. Machining drawings 19
Appendices
AppendixA
Yaesu FT-817 fitting instructions 20
Appendix B
Kenwood TS-50 fitting instructions 26
Appendix C
Icom 706 MKII G fitting instructions 30
Appendix D
Other bhi products 34