Repository of Information for the DSP-10 Transceiver  by  W7PUA   Last updated:  25 December 2015 12:28 AM PST


TAPR Kit DSP-10

 - DSP-10 Assembly Manual, N7HPR    the TAPR Kit Assembly Manual  73k .pdf file on W7PUA home page


Latest Release : Command Summary

DSP-10 Command Summary - v3.96  23k  Color  Format

DSP-10 Command Summary - v3.9  Black & White Format

Two pages, printable front and back, on one piece of paper in pdf format.


User Manual DSP-10 - v3.96  by KD7TS

Mike, KD7TS has made available, online the pages and pages of documentation for the DSP-10.  The latest Manual ver 3.96 is available by clicking on the User Manual DSP-10- v3.96  and is very easy to use.   It has a Table of Contents, and is indexed to take you right the the area you are interested in reading about.  Very Slick!

Mike's Manual has been archived from earlier versions, so update your bookmarks. 

Then the whole manual is also available in a Zip File that you can place on your computer in any directory that you chose.  Mike's Zip file  394DOC.ZIP  is available from Dropbox.com   After unzipping, you will have the DSP-10 Manual available for immediate use, right on your computer. 

I have a very slow DSL internet connection and placing the un'Zipped Manual on my computer is a great time saver.  I created a shortcut to the MAN4.HTM file and placed it on my desktop for easy access. Sure works great and you don't have to be on the internet to use it.

Check it out: It is worth having on your computer for a quick reference.

Thanks Mike!


DSP-10  Initial Setup Testing  modified by W7CQ for TAPR Kits

This takes the QST initial Test article by W7PUA and shows the modifications and test procedures in RED used by W7CQ as to what I did to get the TAPR kit  DSP-10 operating.   Hope it helps.

Download this Adobe PDF file  : DSP10_Initial_Testing.pdf 34k  


DSP-10   PLL Tuneup Procedures  by Roger  KA7EXM

Lots of practical information available on Roger's pages


 DSP-10  -  Software Defined Radio

The DSP-10 is a two-meter ham-radio transceiver design by Bob Larkin, W7PUA, using a DSP processor for the IF and audio. Details of the DSP-10 were published in QST magazine for September, October and November of 1999.The DSP-10 can be used for very weak signals communications and has special features for use with microwave transverters.

Full Documentation for the DSP-10 is found on the W7PUA web page


E-Mail Reflector for the DSP-10

All aspects of the DSP-10 project are discussed and information distributed on the dsp-10@qth.net email reflector. You can send an email to the reflector after you subscribe and it will then be sent to all subscribers of the list. This will give a way for all those interested in the project to share their questions, answers and experiences, quickly and informally. If you want to get this email news on the DSP-10 project, send an email:

The reflector is on mailman.qth.net and will cover all aspects of this project.

Anyone can use this service but first you must subscribe.

To subscribe, unsubscribe, or to read the archives, go to the mailman.qth.net     then Click on Directory of Lists / Then DSP-10  /  then follow the directions and fill out a form.for signing up. 

 After you subscribe, you will receive full information on using the reflector.  You will not be getting SPAM or unsolicited e-mails by signing up for this service.  Just DSP-10 information from other users.

I am the manager of this DSP-10 Reflector e-mail me if you have questions the address listed on the bottom of my home page.    Jimmy W7CQ


W7PUA Wins ARRL 2000 Technical Innovation Award  from QST September 2001 pp. 67-68

Bob Larkin, W7PUA, helped introduce software defined radios, or SDRs, into the Amateur Radio lexicon, with the design and publication in QST of the DSP-10 SDR.  Pioneering hams have built these units and have used them to do unimagined things, like making two-way QRP moonbounce contacts. The DSP-10 has provided a means for the amateur community to learn about SDRs.

Modern digital signal processing (DSP) technology has made extensive inroads into the domain of hard-wired components. With SDR, software generates radio signals, not a phase-locked loop oscillator, and DSP can generate a signal directly over a surprisingly large frequency range. Software also serves for filtering, automatic gain control and, more importantly, the direct modulation and demodulation of the signals used to communicate.

In the commercial world, SDR can be used over a range of tens of megahertz, with operating modes from "legacy" FM to modern spread spectrum. If a new model is needed, the SDR can be hooked up to a computer and the new program installed--an instant upgrade!  Ham manufacturers are jumping on this bandwagon, too.

Congratulations from W7CQ


 Three ARRL Magazine Articles for DSP-10  (published 1999)

- DSP-10 QST article September 1999, pg 33, by W7PUA Part 1 , a 626k .pdf file, ARRL

- DSP-10 QST article October 1999, pg 34,  by W7PUA Part 2 , a 1,273k .pdf file, ARRL

- DSP-10 QST article November 1999, pg 42, by  W7PUA Part3 , a 1,059 k .pdf file, ARRL


ACKNOWLEDGEMENTS: Bob Larkin, W7PUA Designer and author of the DSP-10. Rich Kellner W5RXP Created parts list from QST articles and assembly notes of Bob Larkin W7PUA. Steven Bible, N7HPR of TAPR for making a Kit of parts available, a combined parts list, assembly notes, testing and troubleshooting into his assembly manual.


Copyright 2006 - Jimmy Oldaker    Last edited:  25 December 2015 12:28 AM

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