PYLE PLMD8 Digital PLL PYLE PLMD8 Digital PLL Synthesized FM Stereo FM Modulator PYLE PLMD8 Digital PLL Synthesized FM Stereo FM Modulator LI Digital PLL Synthesized FM Stereo FM Modulator LI Ground Isolator Built In LI 7 Frequency Settings On Selectable DIP Switch LI Power Input DV 12V LI 87 7MHz 87 9MHz 88 1MHz 88 3MHz 88 5MHz 88 7MHz 88 9MHz