10 Sept/Oct 2002
8900 Marybank Dr
Austin, TX 78750
gerald@sixthmarket.
com
A Software-Defined Radio
for the Masses, Part 2
By Gerald Youngblood, AC5OG
Come learn how to use a PC sound card to enter
the wonderful world of digital signal processing.
P
art 1...
More
10 Sept/Oct 2002
8900 Marybank Dr
Austin, TX 78750
gerald@sixthmarket.
com
A Software-Defined Radio
for the Masses, Part 2
By Gerald Youngblood, AC5OG
Come learn how to use a PC sound card to enter
the wonderful world of digital signal processing.
P
art 1 gave a general description
of digital signal processing
(DSP) in software-defined radios (SDRs).
1 It also provided an overview of a full-featured radio that uses
a personal computer to perform all
DSP functions.
This article begins design implementation with a complete
description of software that provides
a full-duplex interface to a standard
PC sound card.
To perform the magic of digital signal processing, we must be able to convert a signal from analog to digital and
back to analog again.
Most amateur
experimenters already have this ca1Notes appear on page 18.
pability in their shacks and many
have used it for slow-scan television
or the new digital modes like PSK31.
Part 1 discussed the power of
quadrature signal processing
Less
