GNSS interference exists everywhere and comes from many different sources, identified and unidentified, intentional or unintentional. The 1dB effect on GNSS of the proposed LightSquared signal would have been negligible compared to what already exists. The reason why the LightSquared plan encountered so much opposition was not because of its effect on GNSS. It was because of its effect on the competing business models of large companies and special interest groups.
With the tools that we have created and embedded in our receivers, everyone can easily see that widespread interference already exists in most places—especially in cities—and interferences can easily be monitored and automatically reported.
These are my predictions—and my strongest recommendations—for the future of GNSS:
• The FCC will create standards for GNSS receivers
• GNSS manufacturers will be forced to build better receivers
• GNSS users will benefit from better receivers at a lower cost
• Interference monitoring and reporting will become a desirable feature of GNSS receivers
• Bands near GNSS spectrum will be freed for more efficient use for all types of productive technology.
• The FCC will create standards for GNSS receivers
• GNSS manufacturers will be forced to build better receivers
• GNSS users will benefit from better receivers at a lower cost
• Interference monitoring and reporting will become a desirable feature of GNSS receivers
• Bands near GNSS spectrum will be freed for more efficient use for all types of productive technology.
Something else: after my last message, Marc Cheves, the editor of The American Surveyor, received a message stating that I had an ownership interest in LightSquared. This is absolutely untrue. The only "interest" I have ever had in this controversy is providing users with the best receiver, period. Marc received another message that referred to me as the "enemy of surveyors." Nothing could be farther from the truth. Again, my only interest has always been to provide the state-of-the-art in GNSS.
Please feel free to contact me with any questions or comments you might have.
Until next time,
Regards,
Dr. Javad Ashjaee
Source: (Amerisurv.com)