Furuno VR-3000 Instruction Manual page 15

Fig.3.11 Video channel Edit menu (2/2)
Horizontal offset: Moves the picture horizontally. With a larger (smaller) value, the
picture moves left (right). If the value is too high, the framegrabber cannot present a
valid image, indicating a small red cross at the upper left corner in the Internet-explorer
display.
Vertical offset: Moves the picture vertically. With a larger (smaller) value, the picture
moves upward (downward). If the value is too high, the framegrabber cannot present a
valid image, indicating a small red cross at the upper left corner in the Internet-explorer
display.
PLL multiplier: This sets the frequency of PLL-oscillator to synchronize with
Horizontal-sync signal, so that the framegrabber grabs pixels across each line correctly.
If wrong, you will see distortion. With a smaller value, grabbed frame becomes narrow,
and with a higher value, the frame becomes wider. You can analyze the image in a
program like Paint Shop Pro. You can drag directly from browser-window to Paint Shop
Pro.
Horizontal and Vertical sync polarity: The polarity of the horizontal and vertical sync
signal is entered. VIDEO->Channels shows information about polarity. Set it according
to this information.
Phase: Phase setting selects the phase of sampling clock relative to phase locked loop
signal in 64 steps of 5.625 degrees. If Phase is not set correctly, any section of an
image consisting of vertical lines may exhibit tearing.
Horizontal resolution: For example, if the image size is 1280x1024, the horizontal
resolution is 1280.
Vertical resolution: For example, if the image size is 1280x1024, the vertical
resolution is 1024.
11