SGC ADSP Argonaut V Installation Instruction

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

This document describes procedures that could result in voiding of the warranty of your radio.

If these procedures are not precisely and properly carried out, it could result in a radio that does not work or is damaged.

Furthermore, while reasonable efforts have been made to assure the accuracy of this information, it is possible that there are some errors, or that your radio is of a slightly different

It is assumed that anyone following suggestions made in this document is already thoroughly familiar with the technologies and techniques involved and possesses the necessary

If you choose to do the installation outlined, you do so at your own risk. You are solely responsible for any damage, voiding of warranty, or other harm that may come about

by following these procedures. It is very strongly recommended that, if you maintain your own radio, you thoroughly familiarize yourself with the transceiver service manual.

version than the one used for testing and thus, differences may exist. You are expected to take total responsibility for your own actions.

skill and knowledge to make their own judgment as to the appropriateness and validity of the information.

If you don't have one, get one!

CAUTION: Soldering and desoldering of very small Surface Mount Components may be required to perform this installation

IMPORTANT NOTE: Support for the ADSP2 board will be provided by SGC
exclusively by email. Please write to [e-mail] for assistance if needed.

1. Technical Specifications

Specification Low Audio High Audio
Size

Weight

Audio Limits
Min Input
Max Input
Max Output
Power Output

Current Consumption
idle
full out

Noise Reduction
Time Delay
Tone Rejection

Filters (3dB Bandwidth)
Voice
CW Wide
CW Narrow
Out of Band Rejection

1.7 X 1.475” 2.645 X 1.475”

0.6 oz 1.1 oz

10 mv RMS 100 mv RMS
150 mv RMS 5 volt RMS
.5 v RMS 9 v RMS
5 Watts RMS

80 mA 110 mA
80 mA 500 mA

X1 X2
13 dB 26 dB

6.5 ms 13 ms

-50 dB -65 dB

300-2100 Hz
400-900 Hz
600-700 Hz

-45 dB

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

2. Preparation

The ADSP2 installation provides you with an unprecedented ADSP capability, far beyond
what you can find on most amateur radio transceivers.

Every possible effort has been made to provide you with a simple, easy to use product.
One where you can concentrate on your communication and not on fiddling with knobs.
SGC’s ADSP2 will give you years of service improving your ability to communicate.

¨ Prepare your work area

¨ Assemble your tools and parts

ADSP2 board
ADSP2 switch assembly
Double-stick tape for mounting the board
Tools for disassembling your transceiver
soldering iron suitable for working with Surface Mount Devices

3. Install the ADSP2 Board

¨ Open your transceiver

¨ Remove the backing from the double-stick foam tape and

attach the ADSP2 assembly into a convenient location

On the Argonaut V, the best place to locate the ADSP2 board is on the main board as
shown below:

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

Secure the board
here with double
sided foam tape

It is convenient to run the wires to the other side of the board through the gap between the
panel and the board:

¨ Connect the ADSP

2

into the signal path

The following connections will be made between the ADSP2 board and the Argonaut V:

Pin 7 to 12V DC, White wire
Pin 9 to DC ground, Black wire
Pin 8 to audio in to the ADSP2, Gray wire
Pin 10 to the audio out from the ADSP2, Brown wire

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Pin 10 Audio Out

Pin 8 Audio In

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

You will also need to make the following connections to the board from the momentary
switches provided for switching ADSP modes and Filters:

Pin 4 to the Yellow Wire
Pin 5 to the Red Wire
Pin 6 to the Black Wire

The picture below shows these connections:

Pin 9 Ground

Pin 7 12VDC

Pin 6 Black Wire

Pin 5 Red Wire

Pin 4 Yellow Wire

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

The audio path should be broken at the input to the audio amplifier just before the volume
control. The only requirement at this point is that a minimum of 10 millivolts RMS and a
maximum of 150 millivolts RMS will appear at this point when using the Low Power
version of the ADSP2. Normally, there is a capacitor at this point (0.1 uf is a typical
value) to couple the stages together. Remove this capacitor and connect the ADSP2 board
in its place. The board has coupling capacitors on its input and output.

First, capacitor C87 is removed and the board is installed across the connections where it
was. The Argonaut schematic shows it like this:

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

Remove C87 and
install the ADSP2
board in its place

Connect the signal path as shown in the diagram. Your installation should look like this:

Wiring connections on
the bottom of the circuit
board for audio, power,
and ground

12 VDC can be taken from any point where it is convenient and the ground can be
connected to any convenient point that is connected to the chassis ground. Connect the 12
VDC and GND wires from the ADSP2 board and connect them to the Argonaut’s power
supply. A convenient location is shown on the schematic below.

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

12VDC Power

Ground
Connection

When complete, your installation should look like the installation picture above.:

¨ Route the ADSP

2

switch assembly out of the transceiver

body

¨ Connect the switch assembly to the switch wire connector

¨ Reassemble the transceiver

4. Test your transceiver

The switch buttons are assigned to their functions according to the diagram below:

Each switch steps through its functions in order as shown below under testing.

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

¨ Testing the ADSP Functions

o Press & Release the ADSP
o Press & Release the ADSP
o Press & Release the ADSP
o Repeat several times to verify operation

2

Pushbutton for Noise Reduction X1

2

Pushbutton for Noise Reduction X2

2

Pushbutton for No Reduction

¨ Testing the Filter Functions

o Press & Release the Filter Pushbutton for the Voice Filter
o Press & Release the Filter Pushbutton for the Wide CW Filter
o Press & Release the Filter Pushbutton for the Narrow CW Filter
o Press & Release the Filter Pushbutton for No Filter
o Repeat several times to verify operation

5. Installing the Switches

The switches may be installed in any convenient location. The specific choice of switches
was made to make it easy to mount on nearly any transceiver. Some people have chosen
to install their switches on the side of the unit, others have preferred the top, and some on
the front. Your specific installation will determine what the best location is. We found it
convenient to put the switches at the right of the front panel as shown below:

Note the
switch location

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

SGC welcomes any suggestions regarding these switches to improve installation and
operation.

CAUTION: Overdriving the ADSP2 module may cause distortion. Backing off the level
of the input signal will avoid it.

SPECIAL NOTE: SGC is constantly seeking to improve the accuracy and ease of use of
it’s technical documentation. Any suggestions for improving this document will be much
appreciated by SGC Management.

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc

Argonaut V ADSP2 Installation
Low Power Board
Catalog Number 70-11

SGC Inc. SGC Building, 13737 SE 26th St. Box 3526 Bellevue, WA. 98009 USA

Fax: [phone], Tel: [phone] or 1-800-259-7331

E-mail: [e-mail] • World Wide Web: www.sgcworld.com

©April 2003 SGC Inc