欧美a级黄片,中文字幕精品久久久久人妻红杏1,福利久久,亚洲AV无码片一区二区三区_

VN31AX is a signal-unit color video noise meter for measuring video luminance noise, chroma AM noise, and chroma PM noise of both NTSC and PAL video signals.
The b signal is continuously analyzed, and the NTSC or PAL circuitry is automatically selected and indicated via front panel LEDs.
Aside from full-field noise measurements, the VN31AX is capable of either odd-field or even-field measurements.
The measurement b function allows the user to select rectangular measurement bs ranging from a 4-?s line segment to a full field.
Features
Automatic selection of NTSC or PAL systems.
One device for luminance and chroma AM/PM noise measurements.
World's first "Any-Size, Anywhere" measurement b.
One-touch measurements via pre-programmed noise mode keys.
Automatic Level Control (ALC) for stable b levels.
Automatic sag compensation for unib b signals.
User-defined judgment ranges for GO/NG butions.