Importer Plus Technical Instruction Manual Description
Issue 0.02 2010-03-29 Page 1-1
Section 1: Description
This section provides a description of the Importer Plus and its associated digital radio system.
• Overview
• Physical requirements - see page 1-4
• Cooling requirements - see page 1-5
Overview
The Importer Plus is used in digital radio transmission systems with Nautel's NE IBOC
(In-Band-On-Channel) signal generator (see Figure 1.2 on page 1-2) , Exporter (see Figure 1.3 on
page 1-2) or Exporter Plus (see Figure 1.4 on page 1-3) . The Importer Plus allows multiple
broadcasts within a single FM channel. It consists of a PC with compatible audio cards to support the
secondary program. The Importer Plus' application software enables partitioning of the available
transmitted HD (high definition) data bandwidth, between main program service (MPS) audio and
other audio and data services, collectively called advanced application services (AAS). Audio AAS are
called secondary program services (SPS), and include and program associated data (PAD).
The front panel has a hinged cover, behind which are LEDs to indicate hard drive activity (HDD)
and power, two USB ports and a power switch (see Figure 1.1). The rear panel has standard PC
connections for monitor, mouse, keyboard and a USB port. Installed audio card(s) include cables and
connectors for audio, and synchronizing inputs and outputs (specific to the type of audio card).
Figure 1.1: Importer Plus partial front view (behind hinged cover)
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