Page 3
NEDSP1062-KBD Operating Manual
1.
Introduction
1.1
NEDSP1062-KBD
features
5
1.2
Limitations
5
1.3
Module connection and mounting
6
1.4
Keyboard mounting
7
1.5
Sounder mounting
8
1.6
DSP noise cancellation
9
2.
Module description
2.1
Block diagram
10
2.2
Module layout
11
2.3
Pin functions
11
2.4
Controls
12
2.4.1 PCB controls
12
2.4.2 Keyboard
12
2.5
Electrical characteristics
12
3.
Installation
3.1
Installation overview
16
3.2
Module setup
17
3.2.1 Overview
17
3.2.2 Suggested set up procedure
17
3.2.3 Changes to output load
18
3.2.4 Other signal considerations
18
3.3
Driving the module from a low level signal
19
4.
Functions
4.1
Keyboard
20
4.1.1 Power button
20
4.1.2 DSP level button
20
4.2
Set up
21
4.3
Demonstration modes
23
4.4
Noise cancellation levels
24
5.
Application notes
5.1
Yaesu SP8
25
5.2
Kenwood SP31
28
5.3
bhi label
31
Contents
