APPEAR AS Confidential 45/352
3.5.7 MPEG-2/4 SD/HD HIGH PERFORMANCE DECODER WITH RF MODULATION
The High Performance Dual Decoder Module will provide two PAL modulated and RF up-converted services with
excellent RF characteristics. The RF up-converted output for the two channels are combined internally and
presented on a single female F connector.
The module has a test output with both channels; the test output connector is a single female F connector and
the power level is -23dB from the main output.
The module covers the complete VHF/UHF band from 47MHz to 862MHz and NICAM or A2 stereo is provided as
an SW option. A module delivered as mono can later be upgraded to support NICAM or A2 stereo by purchasing
a SW license.
The RF output can be muted with an external unit by applying 5V to the mute connector. Channel A and Channel
B can be muted individually. The connector for Mute is a 2.5 mm headphone jack. For more information on this
functionality, contact Appear’s Support Team.
The High Performance Dual Decoder with RF Modulation and Stereo sound is two slots wide.
3.5.8 QUAD DECODER WITH RF OUTPUT
The Quad Decoder solution consists of up to 1 or 2 individual decoder modules and a TV modulator. Each
decoder module decodes 4 MPEG-2/4 services and the TV modulator modulates up to 8 analog RF TV channels.
With the 4 channel solution (two slots wide, see figure below all the channels are fully agile and can be set to any
frequency in the UHF/VHF range. On the other hand, the 8 channel solution (three slots wide, see figure below)
has 2x2 channels paired with neighboring channels.
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