Dennis Hunt, Director of Engineering, Chambers Communications Corp. /
06.26.2012 01:00 PM
Harris Assists Oregon Digital Transition
EUGENE, ORE.:—Chambers Communications
Corp. is the parent company of four
Oregon television stations, and we’ve been
working for some time to make a July 2012
deadline for transitioning our 12 translator
sites from analog to digital.
Chambers is seeking an NTIA grant to
upgrade the sites, ensuring that the majority
of viewers in each of these areas that we
serve can receive DTV signals, with equipment
having to be purchased, installed and
licensed before the grant can be made. We
selected Harris to help us meet this challenging
deadline, and they came through,
delivering 14 DTV transmitters within 30
days of our order.
We’ve been a long-time Harris customer,
beginning with a 30 kW analog transmitter
in 1978, and have long been impressed
with Harris’ customer support. And we
were eagerly awaiting their entry into the
We selected a mix of 10 100-Watt Maxiva
UAX models for our UHF sites, along
with two Platinum VAX models for the VHF
sites. Maxiva Compact Class UAX gap-filler
transmitters were also added to a couple of
It’s important to note that these are actual
transmitters, not translators. The UAX
and VAX models are outfitted with Harris
Apex exciter technology, with full autocorrection
capabilities for linear and nonlinear
distortion to maximize the power and
quality of our off-air signals. This was very
important, as the cleaner the signal from
the transmitter site, the better the reception
will be for our viewers.
NEEDED BEST POSSIBLE SIGNAL
Reception quality is always a concern
on the outer edges of the market with DTV
transmission. Every additional dB of signal
that I can gain at the transmitter in signalto-
noise ratio gives our viewers a better
chance of cleanly receiving our broadcasts
with their rabbit ears and 20-year-old outdoor
The transmitters purchased for this
project feature an air-cooled design, which
is ideal for our sites with their remote locations
and compact shelters. To make cooling
system maintenance easier, units are
equipped with replaceable fans that can
be quickly serviced in the field.
Serviceability is a big benefit of the Maxiva
and Platinum design. The power amplifier
modules are all hot-swappable, and the
designs use the same driver modules. This
means I can carry a single module as a spare
that can be used across the systems.
The Harris Compact Class was perfect
for two of our remote locations, due to
site power and cooling limitations. The
UAX models operate
and space, and still
provide all the performance
of the Maxiva line.
The transmitters incorporate
not only our transmitters,
but a complete
and transmission line, as well as receivers
to convert primary station ATSC signals into
ASI for exciter processing.
We are benefitting from the serviceability,
reliability and technical support—three
areas where Harris really excels. They are
there for us when we need them.
Dennis Hunt has been with Chambers
Communications for 38 years. He may be
contacted at email@example.com.
For additional information, contact
Harris North America sales at 800-231-
9673 or visit www.broadcast.harris.com.