Video delay predistortion. The Drake VM2552A BTSC Stereo Modulator is a high-quality, vestigial sideband unit with synthesized visual and aural carriers. The frequency-agile VM2552A features 82 channel frequency coverage up to 550 MHz allowing for front panel selection of standard CATV channels 2 to 78 and 95 to 99. Monaural or BTSC stereo-operating modes may be utilized. Both audio and video AGC can be selected to maintain nearly constant modulation levels.
Audio inputs can be either unbalanced or balanced.
These features, combined with a carefully designed output stage, provide reliable operation in a densely crowded or cable environment. Sync pulse gated. Meets group delay predistortion requirement for NTSC color transmission per FCC part 73.