TANDBERG Voyager E5784, Reference Manual, Page: 12 / 384

Introduction to the Basic Encoder
Page 1-4 Reference Guide: Voyager E5784 and E5788 HD DSNG Encoder
ST.RE.E10137.3
Figure 1.1: Encoder Front View
There are four vacant slots for option modules. These slots can be
occupied by any combinations of modules shown in Chapter 3, Options and
Upgrades.
Table 1.2: Equipment Model Descriptions
Model
Number Marketing
Code Description
E5784 Encoder M2/VOY/E5784-IF MPEG-2 HD DSNG Encoder with 4:2:0 video encoding and IF output
satellite modulator.
E5784 Encoder M2/VOY/E5784-LBAND
MPEG-2 HD DSNG Encoder with 4:2:0 video encoding and L-Band
output satellite modulator.
E5788 Encoder M2/VOY/E5788-IF MPEG-2 HD DSNG Encoder with 4:2:0/4:2:2 video encoding and IF
output satellite modulator.
E5788 Encoder M2/VOY/E5788-LBAND MPEG-2 HD DSNG Encoder with 4:2:0/4:2:2 video encoding and
L-Band output satellite modulator.
1.2 Role of the Encoder in a System
1.2.1 Typical System
The Encoder is a transportable digital exciter designed specifically for
mobile contribution applications. It is compact and lightweight, fully
MPEG-2 and DVB or ATSC compliant and has high performance for the
transmission of studio-quality video material. The equipment is designed
to be suitable for both flyaway use (within an appropriate flight case) and
truck installation.
The Encoder has two video encoders (HD and SD), two stereo audio
encoders (dual standard MPEG-1 (layer 2)/Dolby Digital (AC-3)
1
),
composite video decoder, CA
2
, data input and general purpose VBI
extraction and encoding circuitry. It also contains a satellite modulator.
High quality 4:2:0 or 4:2:2
3
video encoding is ensured by the inclusion of
digital noise reduction techniques
4
and many other proprietary algorithms
as well as standard MPEG compression techniques.
Video can be input to the unit in serial digital component (SDI) format or
composite analogue (PAL/NTSC). There is also a logo overlay facility
allowing broadcasters to trademark material.
1
Dolby Digital (AC-3) is only available when software option M2/ESO2/AC3 is purchased.
2 CA relates to RAS and BISS. RAS and BISS are only available when software options M2/ESO2/RAS and
M2/EDCOM2/BISS are purchased. A E57xx Encoder may be fitted with both RAS and BISS options but only one
scrambling format can be used at any one time.
3
4:2:2 is only available when software option M2/ESO2/422 and M2/ESO2/HD422 is purchased.
4
Noise reduction is only available when software option M2/ESO2/NR and M2/ESO2/HDNR is purchased.