NBS Special Publication, Issues 556-559U.S. Government Printing Office, 1979 |
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Page vii
... LORAN - C TIME AND FREQUENCY METHODS 9.1 BASIC PRINCIPLES OF THE LORAN - C NAVIGATION SYSTEM 9.2 BASIC LORAN - C FORMAT 9.2.1 CARRIER FREQUENCY . 9.2.2 9.2.3 TRANSMITTED PULSE SHAPE TRANSMITTED PULSE . . 145 . 145 • 146 . 147 · 148 149 ...
... LORAN - C TIME AND FREQUENCY METHODS 9.1 BASIC PRINCIPLES OF THE LORAN - C NAVIGATION SYSTEM 9.2 BASIC LORAN - C FORMAT 9.2.1 CARRIER FREQUENCY . 9.2.2 9.2.3 TRANSMITTED PULSE SHAPE TRANSMITTED PULSE . . 145 . 145 • 146 . 147 · 148 149 ...
Page viii
... C. Pulse Group D. Existing Format E. GRI . F. Blink Codes G. Spectrum H. Fine Spectra I. Harmonics • 9.3 WHAT IS THE EXTENT OF LORAN - C COVERAGE ? 9.3.1 GROUNDWAVE SIGNAL RANGE 9.3.2 SKYWAVE SIGNAL RANGE 9.4 WHAT DO WE GET FROM LORAN - C ...
... C. Pulse Group D. Existing Format E. GRI . F. Blink Codes G. Spectrum H. Fine Spectra I. Harmonics • 9.3 WHAT IS THE EXTENT OF LORAN - C COVERAGE ? 9.3.1 GROUNDWAVE SIGNAL RANGE 9.3.2 SKYWAVE SIGNAL RANGE 9.4 WHAT DO WE GET FROM LORAN - C ...
Page x
... LORAN - C CHAINS . ECD TABLE : HALF CYCLE PEAK AMPLITUDE vs ECD ( LORAN - C ) GROUP REPETITION INTERVALS ( LORAN - C ) Table 9.1 Table 9.2 Table 9.3 Table 10.1 Table 11.1 COMPARISON OF FREQUENCY SOURCES Table 12.1 CHARACTERISTICS OF THE ...
... LORAN - C CHAINS . ECD TABLE : HALF CYCLE PEAK AMPLITUDE vs ECD ( LORAN - C ) GROUP REPETITION INTERVALS ( LORAN - C ) Table 9.1 Table 9.2 Table 9.3 Table 10.1 Table 11.1 COMPARISON OF FREQUENCY SOURCES Table 12.1 CHARACTERISTICS OF THE ...
Page xiii
... LORAN - C PULSE GROUP AND PHASE - CODE FORMAT • 153 Figure 9.2 LORAN - C SIGNAL FORMAT ( CHAIN OF SIX STATIONS AT GRI CODE 9930 ) 160 Figure 9.3 Figure 9.4 STANDARD LORAN - C PULSE ( xiii 143 15.
... LORAN - C PULSE GROUP AND PHASE - CODE FORMAT • 153 Figure 9.2 LORAN - C SIGNAL FORMAT ( CHAIN OF SIX STATIONS AT GRI CODE 9930 ) 160 Figure 9.3 Figure 9.4 STANDARD LORAN - C PULSE ( xiii 143 15.
Page xiv
... LORAN - C PULSE WITH ECD = +3.0 MICROSECONDS 162 162 Figure 9.5 LORAN - C PHASE CODES . 165 Figure 9.6 LORAN - C BLINK CODE 165 Figure 9.7 THE 100 kHz LORAN - C PULSE 167 Fgiure 9.8 INSTRUMENTATION FOR UTILIZING PULSES WITHIN THE LORAN ...
... LORAN - C PULSE WITH ECD = +3.0 MICROSECONDS 162 162 Figure 9.5 LORAN - C PHASE CODES . 165 Figure 9.6 LORAN - C BLINK CODE 165 Figure 9.7 THE 100 kHz LORAN - C PULSE 167 Fgiure 9.8 INSTRUMENTATION FOR UTILIZING PULSES WITHIN THE LORAN ...
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Page 114 - THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consistent system of physical measurement; coordinates that system with measurement systems of other nations; and furnishes essential services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce.
Page 23 - That the functions of the bureau shall consist in the custody of the standards; the comparison of the standards used in scientific investigations, engineering, manufacturing, commerce, and educational institutions with the standards adopted or recognized by the Government; the construction, when necessary, of standards, their multiples and subdivisions; the testing and calibration of standard measuring apparatus; the solution of problems which arise in connection with standards; the determination...
Page v - In no case does such identification imply recommendation or endorsement by the National Bureau of Standards , nor does it imply that the...
Page 195 - The second is the duration of 9, 192, 631, 770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium- 133 atom (13th CGPM, 1967).
Page 95 - ... (a) cause or significantly contribute to an increase in mortality or an increase in serious irreversible or incapacitating reversible illness; or (b) pose a substantial present or potential hazard to human health or the environment when improperly treated, stored, transported, or disposed of, or otherwise managed.
Page 232 - THE INSTITUTE FOR MATERIALS RESEARCH conducts materials research leading to improved methods of measurement, standards, and data on the properties of well-characterized materials needed by industry, commerce, educational institutions, and Government; provides advisory and research services to other Government agencies; and develops, produces, and distributes standard reference materials.
Page 232 - ... these efforts; builds and maintains competence in the necessary disciplines required to carry out this research and technical service; develops engineering data and measurement capabilities; provides engineering measurement traceability services; develops test methods and proposes engineering standards and code changes; develops and proposes new engineering practices; and develops and improves mechanisms to transfer results of its research to the utlimate user. The Laboratory consists of the...