Voyager E5784 and E5788 HD DSNG Encoder
24
4.11.2
The Ops Menu
The most frequently performed operation on a DSNG Encoder is
configuring the Modulator, switching the output on and off, and
controlling the output power.
The
Ops Menu
is intended to allow the user to quickly configure the
Modulator. The following parameters can be controlled via the
Ops
Menu
:
>
Output – On/off
>
Modulation – On/off
>
Output Power – Preset Low / Preset High
>
FEC Rate
>
Bit-rate
>
Symbol Rate
>
Frequency
Full control of all satellite modulator parameters is provided via the
Satellite Modulator Menu
.
4.12
Configuring the Encoder for Minimum Bit-rate
The following parameters can be configured to minimise the video bit-
rate required for a given picture quality:
>
Compression Mode - the Compression Mode option is found in
the
Video Encoder Menu
. For minimum bit-rate this should be set
to standard.
>
Video Bandwidth - the Video Bandwidth option is found in the
Video Source Menu
. To minimise the video bit-rate this should be
set to medium, or better still soft. However, this does effect the
sharpness of the pictures.
>
Noise Reduction - if the noise reduction option has been
purchased, then there will be a Noise Reduction option in the
Video Source Menu
. The higher the level of noise reduction set,
the lower the video bit-rate, but the sharpness of the pictures will
be reduced.
