Attachment LightSquared - Bloed

This document pretains to SAT-MOD-20101118-00239 for Modification on a Satellite Space Stations filing.

IBFS_SATMOD2010111800239_927078

Mr. Julius Genachowski Received & Inspecteq Chairman C Federal Communications Commission JUL 25 2017 445 12"" Street SW p ; Washington, DC 20554 CC Mail Room Dear Chairman Genachowski: As a licensed Professional Land Surveyor in Maryland, I must express serious concerns regarding the Federal Communications Commission (FCC) granting LightSquared, LLC conditional approval to build a nationwide 4G—LTE wireless broadband network (FCC File No. SAT—MOD—20101118—00239). Early testing by GPS technology leaders, Garmin and Trimble Navigation, demonstrated that LightSquared‘s technology would likely interfere with Global Positioning System (GPS) receivers, degrading their performancein the best case scenario and completely jamming GPS recelvnrs in the > worst case scenario. : + The Department of Defense, FAA, DHS, NASA, DOI, DOT, DOC, and the Professional Land Surveying and Engineering professions, have all expressed serious‘reservations: . : in regards to this plan by LightSquared, LLC to build 40,000 ground stations in the U.S. .. ‘that could:—cause wndespread interferernce to GPS signals. — This network of ground ‘stations will transmit sngnals within the L—band frequency immediately adjacent to the : . GPS L1 frequency at more than one billion times the strength of the low—power GPS signal from space. Furthermore, each mobile phone using LightSquared‘s wireless _ service would potentially become a portable GPS jamming device by jammlng CP‘“' Feceivers in its immediate vicinity. . > High—precxs;on GPS equipment usedv by Land.,Surveyors and. othe;r;, geomatics professionals COStmgthousands‘of. d gre adversely affected:than‘ theconsumer. GPS de\néesglven thelr mherent dPSIgHLJteraIIy, tens—of > sc thousands| of "highp‘re&sronGPS"_euel\}ers are usedin *heJmiadStates.s»:GPS. technologyhastransformed‘the waywe‘build and"manage our mfrastructure adding a tremendous level of efficiency to the design, .construction,.and maintenance of roads, bridges, commercial properties, residential subdivisions, parks, farms, golf ‘courses, etc. GPS has become an essentiai tool for design professionals and it is lmperafive that : 2A thesc, GPSsngnalsarenotjeooardlzed bv broadbandtechnology: ; s. ;t oslt .,_1 ENCn 4 T’nsSituation‘has" thepotentlal ofbecomlng airen?endous publn.,spafety issue anr.. am / economical disasterhotoniyfor Maryland but also, for the Unlted\States. asa whole. — The mehibers ‘ofthe N‘aryIand SometyofSurveyors urge you to rejec,*the LightSquared ~ application untli§uch trmethat all"tests concluswelydemonstrate there is no risk of interference. | brtectit Coug? NEEStLIL pese P PWd‘ Smcerefy ft=iv o+ & h i MatthewGBloedotn, tS z sc ‘s Ma:yland Professronai Lanq burveyo- #213\;7 Aeere gpeep


Document Created: 2011-09-12 12:21:44
Document Modified: 2011-09-12 12:21:44
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