“The test data discussed today makes clear that there is substantial interference to GPS if LightSquared turns on high-powered terrestrial facilities in the spectrum next door to GPS,” Trimble vice president and general counsel Jim Kirkland said today at an event sponsored by the National Space-Based PNT Advisory Board. Kirkland is also a founding member of the Coalition to Save Our GPS.
The controversy over potential interference to GPS from LightSquared’s planned nationwide network of powerful 4G broadband retransmitting stations has now drawn Congress into the dispute. Letters expressing concern about adverse effects of the LightSquared network on GPS have been sent to the FCC by House and Senate members.
Two events last month intensified the confrontation between LightSquared, a private U.S. communications company, and U.S. government and industry GPS interests.
Satellite communications provider Inmarsat and aviation standards organizations have been working on a solution to a lesser-publicized aspect of the planned LightSquared broadband wireless network–the potential for the system’s high-power transmitters to interfere with satcom as well as GPS navigation signals.
LightSquared documents submitted to the FCC last week reveal that its transmitters were transmitting at only half power during the tests recently conducted in the Las Vegas area to check for interference with GPS receivers. This means that any interference detected by the GPS units could be as much as half that expected when the LightSquared transmitters operate at their eventual planned power levels.
GE Aviation published its second “public-use” required navigation performance (RNP) approach procedure in the U.S., now available for operations into Deadhorse Airport, Alaska. The company is developing a third public-use RNP procedure at Dallas Love Field as part of an air traffic management trial there.
Honeywell’s EASy II upgrade for the Falcon 900 EASy received FAA technical standard order (TSO) approval from the FAA and is slated for certification in the 900 EASy later this year.
The confrontation between LightSquared and the U.S. government and industry GPS interests is heating up. LightSquared was able to obtain an FCC waiver of its satellite broadcast license to build a supplemental terrestrial transmitter network for broadband wireless. The GPS community claims that LightSquared’s plan, using a radio frequency close to that of GPS, will create interference. On Friday, Rep.
There’s a new way to fix long-standing noise and emissions problems at airports that are surrounded by nearby neighbors, such as Naples Airport in Florida and Santa Monica Airport in Southern California.