ST-HDoC / ST-HDoC-MM
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“Video OUT ” port, and received by the tester’s “Video IN ” port.
This feature is used for testing the video transmission system, such as optical video transmitter and
receiver, video cables, etc. The tester’s “Video OUT ” port connects to the sending port of the optical
video transmitter , the “Video IN ” port connects to the receiving port of the optical video transmitter .
Application：
A. When servicing a camera, send the image to the monitoring center, if the monitoring center can
receive the image, it means that the Video transmission channel is normal, in addition, the monitor
center can judge the image quality through the received color bar.
B You can send one of several different color pallets to determine if the display monitor is calibrated
properly.
C .Send gray scale test bar, to debug a monitor’s grayscale performance.
3.3.3 Video level meter
The ST-HDoC/ ST-HDoC-MM is not equipped with the Video level meter.
3.3.4 Video setting
Press to access the menu, press to enter.
LCD brightness, contrast, color saturation can be adjusted.
The ST-HDoC auto displays the format (PAL/NTSC) of the video input, and analyzes the input
video signal level.
If the coaxial cable is too long, it will reduce the video signal level. If the level is too low, the image
will not be as deep and its dynamic range will be reduced. If the level is too high, the image will
get washed out. There will be prompts that appear on screen if the level out of range.
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