Harris Corporation Unveils Breakthrough HD Radio(TM) Combining Method; Split-Level(TM) Combining System Will Reduce Operating Co
June 02 2004 - 2:00PM
PR Newswire (US)
Harris Corporation Unveils Breakthrough HD Radio(TM) Combining
Method; Split-Level(TM) Combining System Will Reduce Operating
Costs and Enable Broadcasters to Leverage Existing Equipment
CINCINNATI, June 2 /PRNewswire-FirstCall/ -- Harris Corporation
(NYSE:HRS) recently unveiled an innovative new technology that
offers FM stations a significantly more efficient method of
transmitting an HD Radio signal. The patents-pending approach of
the company's new Split-Level Combining System can reduce an FM
station's energy costs by as much as 25 percent over High-Level
Combining, and enables stations to continue using existing FM
analog transmitters that are already operating near peak capacity.
"This new, more efficient method of adding HD Radio to FM stations
is sparking great interest among FM broadcasters," said Jeremy C.
Wensinger, president, Harris Broadcast Communications Division.
"Our engineers estimate that a station's overall power consumption
could be between 5 and 25 percent less than with High-Level
Combining." Split-Level Combining utilizes the existing FM
transmitter and a new common-amplification FM/HD Radio transmitter
to generate the required FM analog power. Driving both ports of the
high-power combiner with analog FM power improves combining
efficiency, reduces combiner losses, reduces existing FM
transmitter power requirements and improves overall system
efficiency, resulting in lower monthly operating costs. With the
Split-Level Combining System, the analog transmitter is no longer
required to operate at higher- than-normal power levels to offset
combining losses. Split-Level Combining also allows a station to
use the existing transmission line and antenna system for optimum
radiation of both the digital and analog signals. Additionally, for
stations with physical space constraints at their transmitter site,
Split-Level Combining allows broadcasters to remove the current
backup transmitter and utilize the common amplification FM/HD Radio
transmitter as a lower power backup FM transmitter. Announced at
the NAB 2004 Public Radio Engineering Conference in April, the
Split-Level Combining System was developed by Harris Principal RF
Design Engineer George Cabrera and Steve Fluker, director of
engineering for Cox Radio, Orlando, Fla. In recent tests, WPYO-FM,
Orlando, utilized a Harris HT- 5FM analog transmitter and a Harris
Z16HD digital transmitter with a standard 3-dB high power combiner
to prove the split-level concept and confirm the benefits of this
technique. About Harris Broadcast Harris Broadcast Communications
Division is one of five divisions within Harris Corporation, an
international communications equipment company focused on providing
assured communications(TM) solutions for government and commercial
customers in more than 150 countries. One of the world's leading
suppliers of broadcast technology, Harris Broadcast Communications
Division offers a full range of solutions that support the digital
delivery, automation and management of audio, video and data. For
more information, visit http://www.broadcast.harris.com/. "HD
Radio" is a trademark of iBiquity Digital Corporation. DATASOURCE:
Harris Corporation CONTACT: Jackie Broo, Manager, Public Relations,
of Harris Broadcast Communications Division, +1-513-459-3547; or
cell, +1-513-226-8405; or Web site: http://www.harris.com/
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