Olson Technology OTM-3000-CV - Manual (Page 4)

025-000041 REV C Page 4
4) F.C.C. OFFSET FREQUENCIES
5) VIDEO MODULATION ADJUSTMENT
A) Connect a video source of approximately 1V p-p to the video input connector (75 ohms input Z) on
the rear panel. The video should be of a reasonably bright scene (commercials are usually excellent).
B) Rotate the video modulation level adjust control slowly clockwise until the video overmodulation
LED just turns on. The light may blink with differences in average picture level. CAUTION: If the
modulation is set too high, compression or lack of contrast will occur during high intensity scenes.