Xii equipment test procedures add the following

Info icon This preview shows pages 38–41. Sign up to view the full content.

View Full Document Right Arrow Icon
(xii) Equipment Test Procedures . Add the following requirement to paragraph 2.5.2 of RTCA/DO-208: For equipment certified to class C3 and C4, paragraphs 2.5.2.5.1 through 2.5.2.5.3.7 do not apply. (xiii) 2D Functional Performance . In lieu of paragraph 2.5.2.1 of RTCA/DO-208, substitute the following requirement: Each of the functional capabilities identified in subparagraph 2.2.1.11 shall be demonstrated. Page 38    (a)(3)(vii)  
Image of page 38

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
TSO-C129a These capabilities shall be evaluated either by inspection or in conjunction with the tests described in paragraph 2.5.2. (xiv) 2D Failure Indication . In lieu of paragraph 2.5.2.7 of RTCA/DO-208, substitute the following requirements: 1. Connect the equipment as shown in RTCA/DO-208, Figure 2-2. Remove the electrical power input to the equipment. There shall be a warning indication by the equipment. 2. The tests for the integrity of the navigation signals are specified in subparagraph 2.5.2.5 of RTCA/DO-208. For equipment certified to class C3 and C4, the requirements of this paragraph do not apply. NOTE: These tests do not need to be performed for functions not incorporated in the equipment. (6) Satellite Selection . The requirements in paragraph 2.5.2.11 of RTCA/DO-208 apply to satellite selection (for acquisition) as well as during operation (after acquisition). All parameters used for satellite selection shall be re-evaluated at least once every five minutes for each satellite used for positioning. In addition, the following paragraphs clarify minimum parameters to be used during the selection process in paragraph 2.5.2.11 of RTCA/DO-208. The equipment must reject a satellite if: (i) The health word indicates that the satellite is unhealthy. (ii) The parity check fails repeatedly, i.e., on more than 5 consecutive words. (iii) The navigation data contains all 1’s, or all 0s. (iv) The alert flag (bit 18 of the Handover Word is set to ‘1’. (v) The URA field described in paragraph 2.5.3 of the GPS SPS Signal Specification indicates the absence of an accuracy prediction (value N=15). Note that paragraph 2.5.2.11 of RTCA/DO-208 contains guidance on the use of the URA field and explains that the satellite must also be rejected if the URA > 64 unless additional integrity monitoring validation is performed. (7) Equipment Performance - Environmental Conditions . (i) Add the following requirement to paragraph 2.4 of RTCA/DO-208: In addition to the test conditions specified in paragraph 2.4, the equipment shall be subjected to the standards as specified in paragraph 2.2.3.3, Acquisition Time, of RTCA/DO-208. 1Page 39
Image of page 39
TSO-C129a (ii) The equipment shall output a valid position within 10 seconds after any power fluctuations identified in paragraphs 2.4.13 and 2.4.14 of RTCA/DO-208, including the power outage testing defined in RTCA/DO-160C, Section 16 and 17. During the normal operating conditions tests (2.4.13.1), the equipment shall continue to provide valid navigation information throughout the test. During the abnormal operation conditions tests (2.4.13.2), it is acceptable to indicate a loss of navigation function and manually reset the equipment. For the voltage spike conducted tests, (2.4.14), the equipment shall continue to
Image of page 40

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 41
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern