SGC ADSP FT817 Installation Instruction

FT817 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

FT817 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 FT817, the best place to locate the ADSP2 board is in the battery compartment as
shown in the picture below. Alternatively, if battery operation is desired with the internal
batteries, then the board can be installed in a small external box and the necessary wires
run in through gaps in the case.

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

FT817 ADSP2 Installation
Low Power Board
Catalog Number 70-11

¨ Connect the ADSP

2

into the signal path

The following connections will be made between the ADSP2 board and the FT817:

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

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

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

FT817 ADSP2 Installation
Low Power Board
Catalog Number 70-11

The picture below shows these connections:

Pin 9 Ground

Pin 7 12VDC

Pin 6 Black Wire

Pin 5 Red Wire

Pin 4 Yellow Wire

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

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