Transport Research International Documentation (TRID) https://trid.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Transport Research International Documentation (TRID) https://trid.trb.org/Images/PageHeader-wTitle.jpg https://trid.trb.org/ AN ANALYSIS OF THE MARITIME HIGH-FREQUENCY SINGLE-SIDEBAND VOICE COMMUNICATION SYSTEM FOR THE NORTH ATLANTIC AND THE SOUTH PACIFIC. VOLUME I https://trid.trb.org/View/49051 Fri, 17 Jun 1977 00:00:00 GMT https://trid.trb.org/View/49051 AN ANALYSIS OF THE MARITIME HIGH-FREQUENCY SINGLE-SIDEBAND VOICE COMMUNICATION SYSTEM FOR THE NORTH ATLANTIC AND THE SOUTH PACIFIC. VOLUME II https://trid.trb.org/View/49052 Fri, 17 Jun 1977 00:00:00 GMT https://trid.trb.org/View/49052 AN ANALYSIS OF THE MARITIME HIGH-FREQUENCY SINGLE-SIDEBAND VOICE COMMUNICATION SYSTEM FOR THE NORTH ATLANTIC AND THE SOUTH PACIFIC. VOLUME III https://trid.trb.org/View/49053 Fri, 17 Jun 1977 00:00:00 GMT https://trid.trb.org/View/49053