10.10 Video Channel Configuration File
Each video channel has a separate video channel INI file: <VidChan1.ini>, <VidChan2.ini>,
<VidChan3.ini>, and <VidChan4.ini>; these files are located in the C:\VDRApps directory.
Manual editing of an existing <VidChanx.ini> file is generally not done unless the file fails to
provide an adequate initial capture. This may be the case whereby a <VidChanx.ini> file is
copied/supplied from a previous successful radar connection and the file fails to provide an
adequate image capture on a new connection of the same type of radar.
Below is a list of the contents within a <VidChanx.ini> file and their meaning.
HSYNC rate in kHz for default source
The exact pixel clock frequency (in MHz) for the system (as specified
by the display’s manufacturer)
Normally set based on the pixel clock rate (0=12-37MHz, 1=37-
74MHz, 2=74-140MHz, 3=140-170MHz)
0 to 7. Normally set based on values reported from
<VideoConfigSuite.exe>
If set to zero, defaults to PClk1*1000/HsRate1
0 to 31: Sharpens the image by accommodating for delays due to
cable length and stray capacitance.
Sets the captured width. It is recommended to set the XDimension 8
larger that the desired image, since the X-offset is adjustable only in
multiples of 8.
Shifts the image to remove black pixels at left edge.
Sets the captured height.
Shifts the image to remove black lines from top.
Table 9.10.A - CLOCK Parameters
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