GPS IIF-9 (SV-10) Successfully Launched from Cape Canaveral AFS

A United Launch Alliance Delta IV rocket launches the GPSIIF-9 satellite for the Air Force at 2:36 p.m. EDT March 25 from Cape Canaveral Air Force Station’s Space Launch Complex-37B. (Photo Courtesy of United Launch Alliance)March 25, 2015 - LOS ANGELES AIR FORCE BASE, Calif.  -- The U.S. Air Force and its mission partners successfully launched the ninth Boeing-built Global Positioning System (GPS) IIF satellite aboard an United Launch Alliance Delta IV launch vehicle from Space Launch Complex 37B, Cape Canaveral AFS, Fla. at 2:36 p.m. EDT.

"I'm elated with today's successful launch, the GPS constellation remains healthy, strong and robust and in over 20 years since initial operational capability, GPS has never failed to deliver on its global positioning, navigation, and timing commitments," said Brig. Gen. Cooley, director of Space and Missile Systems Center's Global Positioning Systems Directorate. More 



Complementary Positioning, Navigation, and Timing Capability; Request for Public Comment

Federal Register Request for Public CommentMarch 23, 2015, The purpose of this notice is to seek comment from the public and industry regarding potential plans by the United States Government to implement an enhanced Long Range Navigation (eLoran) system as a complementary positioning, navigation, and timing (PNT) capability to the Global Positioning System (GPS). More

The Department of Transportation seeks input on:

  1. A brief description of your application(s) of positioning, navigation, and timing services;
  2. the positioning, navigation, and/or timing performance required for a  complementary PNT capability to support operations during a disruption of GPS that could last for longer than a day,
  3. availability and coverage area required for a complementary PNT capability,
  4. willingness to equip with an eLoran receiver to reduce or prevent  operational and/or economic consequences from a GPS disruption,
  5. current and planned availability of e-Loran capable user equipment,
  6. other non-eLoran PNT technologies or operational procedures, currently  available or planned that could be used during a disruption of GPS for longer than a day.

DATES: Submit comments on or before May 22, 2015

Global Positioning System Adjacent Band Compatibility Assessment Workshop III

Federal Register Notice of MeetingMarch 12, 2015, The U.S. Department of Transportation  hosted a workshop to continue discussions on the Global Positioning System (GPS) Adjacent Band Compatibility Assessment

The workshop focused on the following topics: (i) identification of GPS and Global Navigation Satellite System (GNSS) receivers to be considered for testing that are representative of the current categories of user applications; and (ii) discussion of a GPS/GNSS receiver test plan… More.

Reference: Presentations GPS Adjacent Band Compatibility Assessment Workshop III

Reference: Post Meeting Comments/Feedback: GPS Adjacent Band Compatibility Assessment Workshop III

Reference: Presentations from GPS Adjacent Band Compatibility Assessment Workshop II

Reference: Presentations from GPS Adjacent Band Compatibility Assessment Workshop I

Reference: DOT GPS Adjacent-Band Compatibility Assessment Plan

FCC Plans to Fine Foreign Manufacturer $34.9M for Jammer Marketing

June 19, 2014, Washington, D.C. – The Federal Communications Commission plans to issue the largest fine in its history against C.T.S. Technology Co., Limited, a Chinese electronics manufacturer and online retailer, for allegedly marketing 285 models of signal jamming devices to U.S. consumers for more than two years… More.


DOD Announces Start of Civil Navigation Message BroadcastingDOD Announces Start of Civil Navigation Message Broadcasting

April 25, 2014, The Department of Defense announced that U.S. Air Force Space Command will begin broadcasting Civil Navigation (CNAV) messages on all operational GPS satellites capable of transmitting the L2C and L5 signals. These pre-operational signals are primarily used to test various equipment and should be employed at the users’ own risk; not used for safety-of-life or other critical purposes.

The implementation will take place in two phases. First, on April 28, 2014, the initial broadcast of CNAV message-populated L2C and L5 signals will occur at a reduced data accuracy and update frequency compared to the legacy GPS signals in wide use today. Second, in December 2014, CNAV data updates will increase to a daily rate, bringing L2C and L5 signal-in-space accuracy on par with the legacy signals. However, derived position accuracy cannot be guaranteed during the pre-operational deployment of the frequencies.

The Air Force will broadcast L2C messages with the health bit set “healthy,” as was the case during a June 2013 test. L5 messages will be set “unhealthy,” but as greater experience with the L5 broadcast and implementation of signal monitoring is achieved, this status may change upon review.

"The U.S. Department of Transportation is pleased with the collaborative effort and work of the CNAV tiger team, formed between the Office of the Secretary of Defense, Air Force Space Command, and the U.S. Department of Transportation, to address concerns about implementation of a pre-operational CNAV capability on the GPS L2C and L5 signals,” said Greg Winfree, assistant secretary for research and technology at USDOT… More

Choosing the Right GPS Navigation Device for Commercial Motor VehiclesChoosing the Right GPS Navigation Device for Commercial Motor Vehicles

March 11, 2013, US DOT Federal Motor Carrier Safety Administration (FMCSA) in conjunction with U.S. Senator Charles E. Schumer (NY) announced an effort to publicize that not all GPS navigation devices are created equal and that some navigation systems are designed specifically for commercial truck and bus drivers.


Why does it matter which navigation system you use?

If you use a navigation system that does not provide you with important route restrictions, such as low bridge overpasses, the shortcut you thought would save you time and fuel, may, in fact, end up costing you a lot more money than you bargained for… More