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    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
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    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
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      <title>INTEGRATED TEST PLAN FOR ATS-F L-BAND EXPERIMENT</title>
      <link>https://trid.trb.org/View/400154</link>
      <description><![CDATA[NASA has developed facilities for conducting mobile satellite communications experiments in the L-Band spectrum allocation for aeronautical/maritime satellite relay communications as defined by the World Administrative Radio Conference for Satellite Communications in 1971. This multi-volume work presents an integrated, international test plan for aeronautical and maritime L-Band communications tests utilizing the NASA ATS-F and ATS-5 satellites during the first year after ATS-F launch. The plan includes proposed technological experimentation and applications evaluation tests. Volume 3 deals specifically with individual maritime test plans, including proposals, shipboard antenna tests, position determination tests, multipath and antenna pattern measurement, L-Band EPIRB buoy tests, maritime satellite tests, and communications performance tests.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
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      <title>ATS-5 MULTIPATH/RANGING/DIGITAL DATA L-BAND EXPERIMENTAL PROGRAM - PROGRAM SUMMARY</title>
      <link>https://trid.trb.org/View/20460</link>
      <description><![CDATA[A summary description of an L-band multipath/ranging/diital communication experimental program is given. Tests involved an FAA KC-135 jet airplane, the NASA ATS-5 satellite, the NASA/Rosman ground station, and the FAA NAFEC facility. All tests were conducted within the 1545- to 1655-MHz frequency band allocated for future aeronautical services. Tests included 30 overocean multipath and ranging flights in the North Atlantic region, 16 digital data communication tests, eight overland multipath flights including both summer and winter conditions, six overocean multipath flights in the Pacific region, and nine fixed-link scintillation tests. Summary test results are presented and discussed relative to theoretical expectation. (Author)]]></description>
      <pubDate>Thu, 19 Dec 1974 00:00:00 GMT</pubDate>
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