SweepGen turns a PC into an Audio Oscillator and Sweep Generator which can be used for testing audio or educational purposes. In conjunction with audio test instruments, you can make frequency response plots. SweepGen uses the sound card in your PC to produce sinewaves
click here to follow the link to
if you want to rate
use this special
if this link is broken please
let us know
ham and amateur radio internet guide page, it requires frames for proper display.