CGSIC Releases GPS Interface Documents, Opens Registration

June 30, 2014  - By

Three new GPS Interface Specification documents have been issued by the Civil Global Positioning System Service Interface Committee:

  • Navstar GPS Space Segment/Navigation User Interfaces (IS-GPS-200H, 24 Sep 2013)
  • Navstar GPS Space Segment/User Segment L5 Interfaces (IS-GPS-705D, 24 Sep 2013)
  • Navstar GPS Space Segment/User Segment L1C Interface (IS-GPS-800D, 24 Sp 2013)

The new documents are posted on the NAVCEN GPS References page and at

Also, registration is now open for the 54th Meeting of the Civil GPS Service Interface Committee (CGSIC), to be held September 8-9, 2014, at the Tampa Convention Center in Tampa, Florida, in conjunction with the Institute of Navigation’s Global Navigation Satellite System conference (ION GNSS 2014).

All CGSIC meetings are free and open at no charge to the public, but attendees pay their own travel, hotel and meal expenses. At the ION link, select “Register Online.” Once you create an ION account, necessary to gather information for badging, choose “I am Registering Myself.” Choose “Registration Type” from the blue banner across the top and then scroll down to the bottom of the next page to “View Other Options.” At the bottom of the next page you will find “Select” for “CGSIC Only” and then complete the registration. If you are registering and paying to attend the ION Conference, CGSIC registration will be included and nothing else is required.

The meeting will contain important updates from GPS program officials and give attendees an opportunity to learn about the broad array of GPS-based applications that are available, according to Rick Hamilton, CGSIC Executive Secretariat.

The draft agenda can be seen on the website. If you have any new suggestions for the agenda, would like to present a topic, or if you found certain information in past meetings useful and would like to hear more, contact the Navigation Center. Please be sure to select “Civil GPS Service Interface Committee (CGSIC)” from the pull-down menu. Or, send comments directly to the Executive Secretariat by e-mail at

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