|
Title: Freebie CAD Post by: nu2b on March 22, 2007, 03:16:03 PM Freebie CAD AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
Anyone interested in modeling circuits and antennas at minimal cost can go to these sites. Circuitmaker spice is available for download here: You can just draw the schematic with this one. No spice text files to deal with. Also can do fun tube stuff. http://babbage.cs.qc.edu/courses/Circuit_Maker/ Ari Voors freebie NEC antenna modeling program is very good also: His 3D version has great graphics. http://home.ict.nl/~arivoors/TOCFrame.htm I've used both and had a lot of fun with each. See some attached pics Regards, BobbyT nu2b |