DSD For Windows Basic Setup - Easy Instructions Noobs Guide
Posted: Mon Feb 04, 2013 9:07 pm
DSD For Windows Basic Setup Instructions
Digital Speech Decoder - Version 1 January 16, 2012
By Scott Halligan, Scan New England Webmaster
Download DSD HERE
See DSD in Action HERE
This tutorial will hopefully provide a clear and basic path to the setup and operation of the DSD For Windows software. I am not the software author, nor am I the person that ported it to Windows. Both have my heartfelt thanks for providing us with a great tool to play with, but a lot of confusion remains for new users. This document will try its best to provide a generic approach to achieving best results. While DSD will decode many types of digital radio communications, this tutorial is based on the decoding of MotoTrbo/DMR signals. However, it should serve to get DSD running for just about anything that the software will decode.
1. A scanner or receiver with a discriminator tap. The speaker jack will not work. A record out jack will not work. It must be a discriminator tap. Check discriminator.nl for further information. Frankly, if you don’t know what a discriminator tap is…this software probably isn’t going to work for you!
2. Said discriminator tap should have a resistor inline. I’ve used 10k ohm resistors with good luck. If the tap does not have a resistor, one can simply be built into a cable by splicing it into the positive (tip) side. 10k ohm resistors are available cheap at Radio Shack. Part #271-1126 works fine. Again this will not be a discussion as to how to add a discriminator tap to a scanner. Check the website mentioned in item #1.
3. A computer that has a sound card with a LINE IN jack. Microphone jacks “may” work, but the LINE IN is by far the preferred way to go.
4. Windows 7 or Windows XP. This tutorial is built on Windows 7. XP configuration will be a little different but the same principles apply.
5. At least a working knowledge of how to manipulate Windows sound properties and how to get to the “DOS” prompt.
6. Patience! It’s almost certain that this program is not going to work “out of the box”. It will require some slight to considerable tweaking. Like snowflakes, I’ve found that no two versions of DSD are alike!
Ready? Let’s get started...