Revision: 1.0
DBS Nano PRO Transmitter User Guide
Copyright © 2022 Domo Tactical Communications (DTC) Limited. All rights reserved.
Commercial in Confidence
Page 5-24
Name
Description
Video encoder
MPEG-4 H.264
generally provides improved picture quality over ASP.
MPEG-4 ASP
may be required for backward compatibility with older
receivers.
Encoder mode
Standard Delay
mode provides higher picture quality at the expense
of delay. Should be used with long range modulation parameters.
Ultra Low Delay
mode provides exceptionally low delay at the
expense of picture quality. Short range modulation parameters will
generally be required.
De-interlace video
If set to
Yes
, this converts interlaced fields to a progressive frame. This
improves picture quality on PC monitor type devices. Progressive
images are also easier to encode which will reduce bit rate.
Sub-horiz resolution
This is the fraction of the horizontal resolution that will be displayed.
If you select
Full
then you will see all horizontal pixels, if you select
1/2
you will see a down-sampled picture which requires much less bitrate
to encode.
Sub-vert resolution
This is the fraction of the vertical resolution that will be displayed.
If you select
Full
then you will see all vertical lines, if you select
1/2
you will see a down-sampled picture which requires much less bitrate
to encode.
Note
: Depending on the type of video content, when using a sub-
vertical resolution, you may wish to enable the de-interlace option too.
Sub frame rate
If
Full
frame rate is giving unsatisfactory quality, you can step this
down until you get a satisfactory picture.
Note
: Using a sub-frame rate will set the Encoder mode to Standard
delay.
Manual video bitrate
The bitrate will normally adjust automatically.
Press the Pencil button to set the video bit rate manually.
H.264 encoder profile
This will default to High (4:2:0).
High (4:2:2) profile is an optional license feature.
ANC encoder enable
SDI ancillary data is an optional license feature.
SDI cameras/sources may include ancillary metadata. Set to
On
to add
ancillary data.