Spotlight

DOT GPS ADJACENT BAND TESTING AND REQUEST FOR VOLUNTARY PARTICIPATION

Request for Voluntary ParticipationMarch 3, 2016 - Summary:  The Department of Transportation, through the Office of the Assistant Secretary for Research and Technology (OST-R), will begin testing Global Positioning System/Global Navigation Satellite System (“GPS/GNSS”) receivers this April pursuant to the DOT Adjacent Band Compatibility Study (“the Study”) test plan published with this notice.  Device testing will take place at the U.S. Army Research Laboratory at the White Sands Missile Range (WSMR) facility in New Mexico. 

The Study provides for testing categories of receivers that include aviation (non-certified), cellular, general location/navigation, high precision, timing, networks, and space-based receivers.  DOT seeks to include a broad range of devices used in rail, aviation, motor vehicle, maritime, and space transportation safety systems, among a number of other applications of GPS/GNSS.  The goal of the Study is to evaluate the adjacent radiofrequency band power levels that can be tolerated by GPS/GNSS receivers, and advance the Department’s understanding of the extent to which such power levels impact devices used for transportation safety purposes, among other GPS/GNSS applications. More

Reference: DOT Adjacent Band Compatibility Assessment Test Plan

Reference: United States Department of Transportation Non-Disclosure Agreement (NDA)

 

GPS IIF-12 Successfully Launched from Space Launch Complex 41, Cape Canaveral Air Force Station, Fla.

Cape Canaveral Air Force Station, Fla. (Feb. 5, 2016) – A United Launch Alliance (ULA) Atlas V rocket carrying the GPS IIF-12 mission lifted off from Space Launch Complex 41 at 8:38 a.m. EST / 5:38 a.m. PST (Courtesy photo: ULA)February 5, 2016 - LOS ANGELES AIR FORCE BASE - EL SEGUNDO, Calif.  -- The U.S. Air Force and its mission partners successfully launched the 12th Boeing-built Global Positioning System GPS IIF satellite aboard a United Launch Alliance Atlas V Evolved Expendable Launch Vehicle from Space Launch Complex 41, Cape Canaveral Air Force Station, Fla. at 8:38 a.m. EST (5:38 a.m. PST)

"Today's launch is a significant achievement in the history of GPS, as we launch the last of the GPS IIF satellites to be delivered on-orbit," said Lt. Gen. Samuel Greaves, Space and Missile Systems Center commander and Air Force program executive officer for space. More

 

 

Global Positioning System Adjacent Band Compatibility Assessment Workshop IV; Notice of Meeting

Federal Register Notice of MeetingOctober 2, 2015, The U.S. Department of Transportation hosted a workshop on the Global Positioning System (GPS) Adjacent Band Compatibility Assessment effort.

The purpose of this workshop was to discuss the draft test plan and provide an opportunity for questions prior to the close of the comment period for the "Draft Test Plan to Develop Interference Tolerance Masks for GNSS Receivers in the L1 Radiofrequency Band (1559-1610 MHz); Public Notice"

DATE/TIME: October 2, 2015 / 10 a.m.–4 p.m. (Eastern Daylight Time).

LOCATION: RTCA NBAA/Colson Room, 1150 18th ST NW, Suite 910, Washington, DC 20036.

FOR FURTHER INFORMATION CONTACT: If you have questions on this notice, contact Stephen M. Mackey, Office of the Assistant Secretary for Research and Technology; Volpe National Transportation Systems Center; Aircraft Wakes and Weather Division, telephone 617-494-2753 or e-mail Stephen.Mackey@dot.gov.

Reference: Presentations GPS Adjacent Band Compatibility Workshop IV

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

 

Draft Test Plan to Develop Interference Tolerance Masks for GNSS Receivers in the L1 Radiofrequency Band (1559-1610 MHz); Public Notice

Federal Register Public NoticeSeptember 9, 2015 - The purpose of this Federal Register Notice is to seek comment from interested parties regarding a draft test plan that the U.S. Department of Transportation (DOT) has developed for the Global Positioning System (GPS) Adjacent Band Compatibility Assessment effort.

The objective of this test is to collect data to determine Interference Tolerance Masks (ITM) for categories of GPS and Global Navigation Satellite System (GNSS) receivers processing signals in the 1559-1610 MHz Radionavigation Satellite Service (RNSS) frequency band, as well as receivers that process Mobile Satellite Service (MSS) signals to receive differential corrections. More

This Federal Register Notice seeks to inform the public of the requirements, the overall test plan, and the associated output data needed to successfully perform this component of the GPS Adjacent Band Compatibility assessment.

DATES:  Comments and related material must reach the Docket Management Facility on or before October 16, 2015

Public Participation: You may submit comments and related material regarding this proposed action. All comments received will be posted, without change, to http://www.regulations.gov. Use “DOT-OST-2015-0099” as your search term to locate this Federal Register Notice.

FOR FURTHER INFORMATION CONTACT: If you have questions on this notice, contact Stephen M. Mackey, Office of the Assistant Secretary for Research and Technology; Volpe National Transportation Systems Center; Aircraft Wakes and Weather Division, telephone 617-494-2753 or e-mail Stephen.Mackey@dot.gov. If you have questions on viewing or submitting material to the docket, call Barbara Hairston, Docket Operations, telephone 202-366-9826.

 

The Nationwide Differential Global Positioning System (NDGPS); Request for Public Comment

Federal Register Request for Public CommentAugust 18, 2015, The Nationwide Differential Global Positioning System (NDGPS) service augments GPS by providing increased accuracy and integrity using land-based reference stations to transmit correction messages over radiobeacon frequencies.

However, a number of factors have contributed to declining use of NDGPS, resulting in a proposal to shutdown and decommission 62 DGPS sites, which will leave 22 operational sites available to users in coastal areas.  A map of the proposed changes to NDGPS coverage can be found at http://www.navcen.uscg.gov/images/dgps/FRNDGPS.jpg

This Federal Register Notice seeks public comments on the shutdown and decommissioning of a total of 62 DGPS sites. Termination of the NDGPS broadcast at these sites is planned to occur on January 15, 2016.

DATES: Comments and related material must reach the Docket Management Facility on or before November 16, 2015

FOR FURTHER INFORMATION CONTACT: If you have questions on this notice, contact CAPT Scott Smith, Coast Guard, telephone 202-372-1545 or email scott.j.smith2@uscg.mil ; or James Arnold, OST-R, NDGPS Program Manager, telephone 202-366-8422 or email NDGPS@dot.gov. If you have questions on viewing or submitting material to the docket, call Cheryl Collins, Docket Operations, telephone 202-366-9826.

Public Participation: You may submit comments and related material regarding this proposed action. All comments received will be posted, without change, to http://www.regulations.gov. Use “DOT-OST-2015-0105” as your search term to locate this Federal Register Notice.

 

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

Federal Register Request for Public CommentMarch 23, 2015, The purpose of this notice was 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 sought 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.

Comments can be viewed at: https://www.federalregister.gov/articles/2015/03/23/2015-06538/complementary-positioning-navigation-and-timing-capability-notice-request-for-public-comments

 

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