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AEA Testifies Over
GPS Interference By Lightsquared High Speed Wireless Network By Mike Mitchell |
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October 17, 2011 - Tim Taylor, president and CEO of
FreeFlight Systems, testified on Capitol Hill on behalf
of the Aircraft Electronics Association to a national
television audience carried live by C-SPAN3. FreeFlight
Systems, is an AEA member.
Located in Waco, Texas, FreeFlight Systems is a
manufacturer of professional grade avionics for
commercial and military aircraft. The company
specializes in the design, development, and production
of GPS navigation management systems, GPS/WAAS sensors,
and radar altimeters. Taylor appeared before the U.S. House of Representatives Committee on Small Business hearing to testified on the high-speed wireless network planned by LightSquared, and concerns that the network would interfere with global positioning systems (GPS) used by the aviation industry. |
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LightSquared is a company that plans to develop a wholesale 4G
LTE (Long Term Evolution) wireless broadband communications
network integrated with satellite coverage across the United
States.
Several
federal agencies with vital concerns about this spectrum band,
including the Departments of Defense, Transportation and
Homeland Security, have informed NTIA that they believe the FCC
should defer action on the LightSquared waiver until these
interference concerns are satisfactorily addressed.
Taylor
explained to the Committee the absolute validations required for
the integrity of aviation GPS systems, and words like
"shouldn't" and "most of the time" simply are not used in the
certification of aviation products. |
LightSquared?s
SkyTerra 1 launched from the Baikonur Cosmodrome in Kazakhstan on
November 14, 2010, ?completing an important step on the way to providing
combination satellite-terrestrial cell phone service in North America.?
The satellite, one of the ?largest commercial satellites ever built,?
was launched aboard a Russian Proton-M/Briz-M rocket, weighs 5.4 tons,
and carries the largest commercial reflector antenna ever put into
space. On March 1, 2001,
LightSquared's predecessor, Mobile Satellite Ventures applied to the FCC
to use a "highly innovative and spectrum-efficient combination of
spot-beam satellites and terrestrial base stations to substantially
improve coverage, capacity, and reliability of mobile communications
without using any additional spectrum." On January 26,
2011, The Federal Communications Commission granted LightSquared?s
Request for Modification of its Authority for an Ancillary Terrestrial
Component. The grant allowed LightSquared and its wholesale customers to
offer terrestrial-only devices rather than having to incorporate both
satellite and terrestrial services. "We find good cause to grant
LightSquared a conditional waiver of Section 25.149(b)(4) of the
Commission?s rules for services provided by LightSquared using its MSS
(Mobile Satellite Services) L-band spectrum,? the FCC noted in its
report. Companies that
provide global positioning systems, in addition to the United States Air
Force, the operator of the GPS system, opposed the FCC waiver, saying
that more time was needed to resolve concerns that LightSquared's
service might interfere with their satellite-based offerings.
LightSquared has promised to work with GPS providers and give the FCC
monthly updates on a resolution to interference concerns. In June 2011, LightSquared unveiled a new plan for deploying its network which would use the lower frequency band of 1526-1536MHz (23MHz away from GPS) for the initial deployment and delay use of the upper band closer to GPS until a later date. They also proposed a 3dB reduction in the base station radiated power. |
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