Specifications
HDC-1801 HD Downconverter & DA with Analog Monitoring Output
Guide to Installation and Operation
HDC-1801 Page 7 of 17
iCONTROL INTERFACE
In addition to local control through the menus, the
HDC-1801 can be remotely controlled using
Miranda’s iControl system. This manual describes
the control panels associated with the HDC-1801 and
their use. Please consult the iControl User’s Guide
for information about setting up and operating
iControl.
In iControl Navigator, double-click on the HDC-1801
icon to open the control panel. Click on an entry in
the left-hand pane to open the associated control
panel. The available controls are described in the
following section.
ARC (Aspect Ratio)
This panel configures the details of aspect ratio
conversion between input and output. The two preview
windows model the ARC function.
• The INPUT window shows the portion of the input
that will be sent to the output. The complete input
would be a full white screen with a full-height green
circle in the center. Any part of the input that will be
cropped is shown in black. The circular shape is
the full height of the original input.
• The OUTPUT window shows the actual format of
the video output from the HDC-1801. The white
portion with the green shape corresponds to the
contents of the INPUT window. Grey areas
surrounding it are inserted into the output by the
HDC-1801. If anamorphic processing has been
applied, the green shape shows the type of
distortion that will be introduced.
Select input and output aspect ratios using the pull-
down in the upper corner of the window. Then select
the desired ARC processing using the radio buttons in
the Aspect Ratio box beneath the windows. The
contents of the box change depending on the aspect
ratios selected. The box is disabled when the input and
output aspect ratios are the same.
The following conversions are possible:
4:3 Æ 16:9 Anamorphic
• The input is stretched horizontally to fill the wider
output screen. The green circle is distorted into an
oval, showing how shapes in the video image will
be distorted.
4:3 Æ 16:9 Side Panel 25%
• The input image is placed into the centre of the
wider output screen, and the remaining space on
each side is filled with black.