Adtec Digital Introduces HDMI2QAM Dual Channel Encoder
with QAM Modulator at NAB 2010
April 6, 2010
Source: Adtec Digital
Adtec Digital will be introducing their
HDMI2QAM dual channel; high and standard definition MPEG 2
broadcast distribution encoder with QAM modulation and RF
Up-Conversion built-in at NAB 2010. The HDMI2QAM encoder-modulator
is an extremely cost effective solution for high definition
video delivery over coaxial cable systems.
Primary applications are for use with clear QAM distribution
to ATSC televisions. The HDMI2QAM automatically detects video
and audio, encodes, multiplexes and generates program information
(PSIP); it then modulates and up-converts two channels for
distribution via coax. Closed captioning, support for Emergency
Alert (EAS), and Dolby Digital Audio are standard.
According to Ron Johnson, V.P. of Marketing for Adtec, “This
product saves thousands of dollars for people who need to
put a high definition feed onto an existing RF cable system,
because they no longer have to purchase a separate hi-def
video encoder and QAM modulator.” Johnson also stated
that since the product handles distribution of two unique
inputs, less equipment is need in the typical cable head-end.
For cable television applications, the unit modulates the
signal using QAM annex B or C and up-converts two video and
audio services multiplexed on one carrier frequency for distribution
via coax networks.
Video rates are automatically adjusted based on HDMI video
input, resolution, audio passthrough or encode and QAM modulation
target. The unit can be easily configured using the integrated
front panel keypad and LCD screen or through use of a web
browser based interface.
Distribution applications for Adtec’s HDMI2QAM include,
but are not limited to, ATSC distribution, DVB Distribution,
private cable, hospitality, medical, education, and cable
television.
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