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3) AGC and ACC on or off – the Auto Gain Control (AGC) and Auto Chroma Control (ACC) are set
to default to the on condition. AGC operation is based on sync tip.
Decoded Video Path Processing:
The following processing functions are available for the decoded signals:
1) Luma Gain – adjusts the percentage of luminance relative to white.
2) Chroma Gain – adjusts the percentage of saturation and chroma gain relative to 100% saturation.
3) Black Level – adjusts amount of brightness/Y offset in IRE.
4) Hue – adjusts hue/chroma phase in degrees. Available in 525 mode only.
5) TSG (75% Color Bars or Black Field) – when on, enables the internal test signal generator to
output a 75% Color Bars or Black Field test signal to the output.
Note: test signals are not adjustable in the Video Processing Controls.
6) On Screen Display (OSD) – enables or disables the On Screen Display on the 2 output channel.
Jumper JP5 on module must be set to OSD On control.
7) Decode Mode – select the type of decoding (filtering) from comb adaptive or notch. Adaptive
decoding is 3-line in NTSC and 5-line in PAL.
8) Programmable VBI and Active Picture Lines.
9) VBI Line – blank or pass VBI lines can be selected on a line-by-line basis.
Video Timing and Freeze Controls
With a DES6800N module, the following Frame Sync timing adjustments can be made:
1) Horizontal Time – adjusts the horizontal delay on the output in pixels. This will add an additional
delay of up to one line.
2) Vertical Timing – adjusts vertical delay in line increments.
3) Loss Video Mode, Auto Freeze – when Auto Freeze is enabled, the output will automatically freeze
on the last valid field when the input signal is lost.
4) Hot Switch – when Hot Switch is enabled, if the input signal contains non-synchronous switches,
the module will briefly provide a field freeze until it can lock to the new input timing.
5) Freeze – enable or disable manually freezes the output signal.
Freeze Mode
1) Field 1 – manually freezes the output signal on field 1.
2) Field 2 – manually freezes the output signal on field 2.
3) Frame – manually freezes the output signal on the full frame.
A field freeze provides less resolution and no motion artifacts in the output. In frame mode, the
resolution is higher since both fields are present, but the presentation of the two fields can cause
motion artifacts.
OSD Mode
In OSD Mode, the position of current rotary switch and parameters of navigation toggle switch can be
displayed. The OSD can be turned off with either the local or remote controls before broadcasting the
signal. When control is enabled with jumper JP5, it can be controlled with either local or remote
controls.
Set the Jumper
Setting the following 5 jumpers is required
JP1 set input or termination
JP2 set reference selection
DEC/DES6800 CVBS/SDI Converter
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