RDF Analysis, Notes
  1. Developed by the U.S. Department of Commerce Institute for Telecommunication Sciences, Boulder, CO.
  2. Ibid.
  3. An extensive literature on NEC2 is available on the Internet.
  4. TIGHAR archives.
  5. Ibid.
  6. In non-diversity reception, a radio receiver has a single antenna.
  7. Spaulding, A. D., and F. G. Stewart, “A Critique of the Reliability & Service Probability Calculations for the Ionospheric Communication and Prediction Program - IONCAP,” NTIA Report 93-297, U. S. Department of Commerce, National technical Information Service, August 1993.
  8. Spaulding, A. D., “Atmospheric noise and its effects on telecommunication systems,” Chapter 6, Handbook of Atmospherics, Ed. H. Vollard, (CRC Press, Boca Raton FL, 1982).
  9. Spaulding, A. D., and F.G. Stewart, “An updated noise model for use in IONCAP,” NTIA Report 87-212, U. S. Department of Commerce, National Technical Information Service, January 1987
  10. Roberts, H. W. “Radio Network and Practice of Pan American Airways” Parts 1 and 2, Aero Digest, January and February 1938.
  11. Http://www.nostalgiaair.org/Resources
  12. Federal Radio Communication Radio Service Bulletin, February 1932.
  13. Federal Radio Commission General Order 94, June 1930.
  14. www.bluejacket.com/ww2_12-07-41_index.htm
  15. Liste des Frequence publiee par le Bureau de Lunion Internationale des Telecommunications, 9th Edition, Fevrier 1939, Berne.
  16. Stetson Conn and Byron Fairchild, “United States Army in World War II, The Western Hemisphere, THE FRAMEWORK OF HEMISPHERE DEFENSE,” Center of Military History, United States Army, Washington, D. C., 1989
  17. Email from “Charlie,” on 11 May 2002.
  18. Dr. Susan I. Enscore, et al, “Historical And Architectural Documentation Reports for Albrook Air Force Station and Howard Air Force Base, Former Panama Canal Zone” for the Air Combat Command, Langley Air Force Base, Virginia, September 1997.
  19. Ibid.
  20. Ibid.
  21. Ibid.
  22. Ibid.
  23. Ibid.
  24. www.timetableimages.com
  25. Liste des Frequences publiee par le Bureau de L'Union Internationale des Telecommunications. 9th Edition, Fevrier 1939, Berne.
  26. Ibid.
  27. “List of Coast Stations and Ship Stations,” 10th Edition, March 1938, published by the International Telecommunication Union, Berne.
  28. Ibid.
  29. Ibid.
  30. Terman, F. E. and W. C. Roake, “Calculation and Design of Class C Amplifiers." Proc. I. R. E., vol. 24, pp. 620-632; April 1936.
  31. Terman, F. E. And J. H. Ferns, “The Calculation of Class C Amplifier and Harmonic Generator Performance of Screen-Grid and Similar Tubes,” Proc. I. R. E. , vol. 22, pp. 359-373, March 1934.
  32. Long, Elgin M. Transcript of interview of Lieutenant Leo G. Bellarts, U. S. Coast Guard (retired), April 11, 1973. Bellarts was the chief radioman on USCGC Itasca during the Earhart search. The transcript is in the TIGHAR archive.
  33. Sandretto, P. C., Principles of Aeronautical Radio Engineering, (McGraw-Hill, 1942), 253.
  34. Article in the Sparks Journal, December 20, 1983, The Society of Wireless Pioneers, P.O. Box 86, Geyserville, CA.
  35. Roberts, H. W. “Radio Network and Practice of Pan American Airways" Parts 1 and 2, Aero Digest, January and February 1938.
  36. Ibid.
  37. Sandretto, 253.
  38. Ibid, 244.
  39. Terman, F. E., Radio Engineering, Third Edition, (McGraw-Hill, 1947), 629.
  40. Ibid, 652.
  41. Ibid, 822.
  42. Ibid.
  43. Ibid.
  44. U. S. Geological Survey map, “Mokapu Quadrangle,” 7.5 minute series, scale 1:24,000, edited 1983.
  45. Weems, P. V. H., Air Navigation, second edition, McGraw-Hill, 1938, Figure 151, p. 226.
  46. Gray, A. , Capt USNR (Retired), “Amelia Didn’t Know Radio,” Naval History Magazine, December 1993.
  47. U. S. Geological Survey Map, “Kaneohe Quadrangle,” 7.5 minute series, scale 1:24,000, edited 1983.
  48. U. S. Geological Survey Map, “Honolulu Quadrangle,” 7.5 minute series, scale 1:24,000, edited 1983.
  49. Roberts.
  50. Honolulu Star Bulletin, July 4, 1937.
  51. Ambler, K.C. Memorandum report to PAA Pacific Division Communications Superintendent, July 10, 1937, TIGHAR archives.
  52. Miller, G. H. Memorandum report to PAA Pacific Division Communications Superintendent, July 11, 1937, TIGHAR archives.
  53. TIGHAR Earhart Project Research CD, Volume 1, which includes a comprehensive collection of radio messages, radio logs, ship deck logs, navigational data, and weather data, compiled and organized by Randy Jacobson, PhD, TIGHAR #136. Hereinafter cited as “TIGHAR CD.”
  54. Ambler.
  55. Angus, G. W. Memorandum to PAA Chief Communication Engineer, July 10, 1937.
  56. Computed from Itasca navigation data on the TIGHAR CD.
  57. TIGHAR CD.
  58. Honolulu Star Bulletin, July 5, 1937.
  59. Ambler.
  60. Angus.
  61. Honolulu Star Bulletin, July 5, 1937.
  62. Ibid.
  63. Ambler.
  64. TIGHAR CD.
  65. Computed from Itasca navigation data on the TIGHAR CD.
  66. Miller.
  67. TIGHAR CD.
  68. TIGHAR CD.
  69. Ibid.
  70. Long.
  71. TIGHAR CD radio message data base, record #1499.
  72. TIGHAR CD radio message data base, record #441.
  73. TIGHAR CD.
  74. Hansen, R. M. Memorandum report to PAA pacific Division Communication Superintendent, July 10, 1937, TIGHAR archives.
  75. Ambler.
  76. Angus.
  77. TIGHAR CD, record #808.
  78. TIGHAR CD, record #454.
  79. Hansen.
  80. TIGHAR CD, record #465.
  81. Ambler.
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