dzięki :)
czy zniekształcenia fm podpadają pod thd?
"We built a little box with a 4-inch driver in it and made it adaptable so that a horn could be fitted on it. When you measure the response (Fig. 1), you see 15 dB difference between the two conditions of direct radiation and horn loading. The frequency modulation distortion products (Fig. 2) for the direct radiator are 25 dB down. With a horn on the driver (Fig. 3), the distortion products are 50 dB down. So you have a 25 dB improvement in distortion with a 15 dB increase of efficiency"
