There we can collect useful softwares for MAC, PC or Linux - like sound wave generators, magnetic field simulators and much more collect all here!
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So, i have a Macintosh and i start for useful software for MAC
* Audio Function Generator (Sine, Sawtooth, Triangle, White, Pink and Pulse waves) --> http://www.blackcatsystems.com/software/audiotoolbox.html
* RF Toolbox (is an antenna design and electronics/electrical tool package) [maybe useful] --> http://www.blackcatsystems.com/software/antenna.html