SGC High Power ADSP User manual

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc
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
version than the one used for testing and thus, differences may exist. You are expected to take total responsibility for your own actions.
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
skill and knowledge to make their own judgment as to the appropriateness and validity of the information.
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.
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 ADSP2board will be provided by SGC
exclusively by email. Please write to [email protected] for assistance if needed.
1. Technical Specifications
Specification Low Audio High Audio
Size 1.7 X 1.475” 2.645 X 1.475”
Weight 0.6 oz 1.1 oz
Audio Limits
Min Input 10 mv RMS 100 mv RMS
Max Input 150 mv RMS 5 volt RMS
Max Output .5 v RMS 9 v RMS
Power Output 5 Watts RMS
Current Consumption
idle 80 mA 110 mA
full out 80 mA 500 mA
X1 X2
Noise Reduction 13 dB 26 dB
Time Delay 6.5 ms 13 ms
Tone Rejection -50 dB -65 dB
Filters (3dB Bandwidth)
Voice 300-2100 Hz
CW Wide 400-900 Hz
CW Narrow 600-700 Hz
Out of Band Rejection -45 dB

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc
2. Preparation
The ADSP2installation 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 ADSP2will give you years of service improving your ability to communicate.
¨Prepare your work area
¨Assemble your tools and parts
ADSP2board
ADSP2switch 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 ADSP2Board
¨Open your transceiver
¨Remove the backing from the double-stick foam tape and
attach the ADSP2 assembly into a convenient location
¨Connect the ADSP2 into the signal path
The following connections will be made between connector J2 on the ADSP2board and
the transceiver:
Pin 2 to 12V DC
Pin 6 to DC ground

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc
Pin 10 to audio in to the ADSP2
Pin 1 to the audio out from the ADSP2
The board (shown below) has two connectors on it, J1 and J2. J1 is not used for any Hi
Power board wiring.
The diagram below shows the wiring for the J2 Connector:
Pin 10 Gray Audio In +
Pin 9 Yellow Noise Select
Pin 8 Violet Audio In -
Pin 7 Red Filter Select
Pin 6 Black Switch Ground
Pin 5 Black DC Ground
Pin 4 N/C
Pin 3 Blue Audio Out -
Pin 2 White 12 VDC
Pin 1 Brown Audio Out +
Connector J1 Connector J2
Pin 1 Brown Audio Out +
Pin 10 Gray Audio In +

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc
The audio path should be broken at the output of the audio amplifier just before the
speaker. The only requirement at this point is that a minimum of 1 volt RMS and a
maximum of 10 volts RMS will appear at this point when using the High Power version
of the ADSP2. The board has coupling capacitors on its input and output.
The speaker used with the ADSP2 Hi Power board must not be grounded. The positive
and negative leads from the speaker must connect to Pins 1& 3of the J2 connector on
the ADSP2 board. The speaker negative wire must not be tied to DC ground. If the
speaker istied to ground in the transceiver, then Pin 8should be connected in its place
and the speaker ground wire should be connected to Pin 3. If the speaker connection is
not grounded in the transceiver, then the two wires should be taken to the ADSP board
Pins 8& 10 first and then the output from Pins 1& 3should be connected to the speaker
as shown.
12 VDC can be taken from any point where it is convenient and the DC ground can be
connected to any convenient point which is connected to the chassis ground.
¨Route the ADSP2switch assembly out of the transceiver
body
¨Connect the switch assembly to the switch wire connector
¨Reassemble the transceiver

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc
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.
¨Testing the ADSP Functions
oPress & Release the ADSP2Pushbutton for Noise Reduction X1
oPress & Release the ADSP2Pushbutton for Noise Reduction X2
oPress & Release the ADSP2Pushbutton for No Reduction
oRepeat several times to verify operation
¨Testing the Filter Functions
oPress & Release the Filter Pushbutton for the Voice Filter
oPress & Release the Filter Pushbutton for the Wide CW Filter
oPress & Release the Filter Pushbutton for the Narrow CW Filter
oPress & Release the Filter Pushbutton for No Filter
oRepeat 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.

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc
SGC welcomes any suggestions regarding these switches to improve their installation and
operation.
CAUTION: Overdriving the ADSP2 module may cause distortion. Backing off the level
of the input signal will avoid it.

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc

High Power ADSP2Installation
Generic –Any Transceiver
Catalog Number 70-12
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: [email protected] • World Wide Web: www.sgcworld.com
©April 2003 SGC Inc