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SGC ADSP FT817, Installation Instructions Manual, Page: 3 / 12

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SGC ADSP FT817 Installation Instructions Manual Download Page 3

 

 

 

FT817 ADSP

2

 Installation 

 

Low Power Board 

 

Catalog Number 70-11 

 

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

Fax: 425-746-6384,  Tel: 425-746-6310 or 1-800-259-7331 

E-mail: [email protected] • World Wide Web: 

www.sgcworld.com

 

©April 2003 SGC Inc 

 

 

 

¨

 

Connect the ADSP

2 

into the signal path  

 
The following connections will be made between the ADSP

2 

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 ADSP

2

, Gray wire 

Pin 10 to the audio out from the ADSP

2

, 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 

Summary of Contents for ADSP FT817

Page 1: ...ir 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 se...

Page 2: ...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 doubl...

Page 3: ... the ADSP2 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...

Page 4: ... shows these connections 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 Pin 4 Yellow Wire Pin 5 Red Wi...

Page 5: ...ld Wide Web www sgcworld com April 2003 SGC Inc 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 C1338 is removed and the board is installed across the connections where it was The FT817 schematic shows it like this A cut should be made on either side of C1338 and C1338 shoul...

Page 6: ... Connect the signal path as shown in the diagram Your installation should look like this 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 FT817 s power supply A convenient location is shown on the schematic below Cut ...

Page 7: ...6 6384 Tel 425 746 6310 or 1 800 259 7331 E mail sgc sgcworld com World Wide Web www sgcworld com April 2003 SGC Inc When complete your installation should look like this Route the ADSP2 switch assembly out of the transceiver body On the FT817 a convenient place to route the switch cables out of the battery compartment is at the speaker jack ...

Page 8: ...ld com World Wide Web www sgcworld com April 2003 SGC Inc Solder the switch assembly to the ADSP2 board 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 Testing the ADSP Functions o Press Release the ADSP2 Pushbutton for Noise Reduction X...

Page 9: ...Press Release the ADSP2 Pushbutton for Noise Reduction X2 o Press Release the ADSP2 Pushbutton for No Reduction o Repeat several times to verify operation 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 Pushbu...

Page 10: ...any transceiver Some people have chosen to install their switches on the side of the unit others have preferred to top and some on the front Your specific installation will determine what the best location is 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 ...

Page 11: ... Power Board Catalog Number 70 11 SGC Inc SGC Building 13737 SE 26th St Box 3526 Bellevue WA 98009 USA Fax 425 746 6384 Tel 425 746 6310 or 1 800 259 7331 E mail sgc sgcworld com World Wide Web www sgcworld com April 2003 SGC Inc ...

Page 12: ... Power Board Catalog Number 70 11 SGC Inc SGC Building 13737 SE 26th St Box 3526 Bellevue WA 98009 USA Fax 425 746 6384 Tel 425 746 6310 or 1 800 259 7331 E mail sgc sgcworld com World Wide Web www sgcworld com April 2003 SGC Inc ...

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