Sorry all. Here is the site for the software. http://www.barberdsp.com/csnd/csnd.htm 73 John / N0KHQ / St. Louis Always on 18.130 Antennas: You can build 'em better than you can buy 'em Please visit the sites below: http://www.hamuniverse.com/antennas.html http://www.cebik.com/n0khq.html