IRPL

Relationships between radio propagation disturbance and central meridian passage of sunspots grouped by distance from center of disc 
1946

NBS IRPL 27
10.6028/NBS.IRPL.27
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Nomographic predictions of F2-layer frequencies throughout the solar cycle, for January 
1946

NBS IRPL 28
10.6028/NBS.IRPL.28
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Disturbance rating of values of IRPL quality-figure scale from A.T. & T. Co. transmission disturbance reports to replace T.D. figures as reported 
1946

NBS IRPL 30
10.6028/NBS.IRPL.30
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North Atlantic radio propagation disturbances October 1943 through October 1945 
1946

NBS IRPL 31
10.6028/NBS.IRPL.31
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Nomographic prediction of F2-layer frequencies throughout the solar cycle, for February 
1946

NBS IRPL 32
10.6028/NBS.IRPL.32
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Ionospheric data on file at IRPL 
1946

NBS IRPL 33
10.6028/NBS.IRPL.33
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The interpretation of recorded values of fEs 
1946

NBS IRPL 34
10.6028/NBS.IRPL.34
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Comparison of percentage of total time of occurrence of second-multiple Es reflections and that of fEs in excess of 3 Mc 
1946

NBS IRPL 35
10.6028/NBS.IRPL.35
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A proposal for the use of rockets for the study of the ionosphere 
1945
Richard Silberstein
NBS IRPL 10
10.6028/NBS.IRPL.10
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A nomographic method for both prediction and observation correlation of ionosphere characteristics 
1945
M L Phillips
NBS IRPL 11
10.6028/NBS.IRPL.11
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Ionospheric and radio propagation disturbances. October 1943 through February 1945 
1945

NBS IRPL 13
10.6028/NBS.IRPL.13
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A graphical method for calculating ground reflection coefficients 
1945
Newbern Smith
NBS IRPL 14
10.6028/NBS.IRPL.14
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Predicted limits for F2-layer radio transmission throughout the solar cycle 
1945

NBS IRPL 15
10.6028/NBS.IRPL.15
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Predicted F2-layer frequencies throughout the solar cycle, for summer, winter and equinox season 
1945

NBS IRPL 16
10.6028/NBS.IRPL.16
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Japanese ionospheric data-1943 
1945

NBS IRPL 17
10.6028/NBS.IRPL.17
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Comparison of geomagnetic records and North Atlantic radio propagation quality figures - October 1943 through May 1945 
1945

NBS IRPL 18
10.6028/NBS.IRPL.18
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Nomographic predictions of F2-layer frequencies throughout the solar cycle, for September 
1945

NBS IRPL 20
10.6028/NBS.IRPL.20
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Solar-cycle data for correlation with radio propagation phenomena 
1945

NBS IRPL 23
10.6028/NBS.IRPL.23
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Relations between band width, pulse shape and usefulness of pulses in the Loran system 
1945

NBS IRPL 24
10.6028/NBS.IRPL.24
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The prediction of solar activity as a basis for the prediction of radio propagation phenomena 
1945

NBS IRPL 25
10.6028/NBS.IRPL.25
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The ionosphere as a measure of solar activity 
1945
M L Phillips
NBS IRPL 26
10.6028/NBS.IRPL.26
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An automatic instantaneous indicator of skip distance and muf 
1945

NBS IRPL 9
10.6028/NBS.IRPL.9
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Criteria for ionospheric storminess 
1944

NBS IRPL 5
10.6028/NBS.IRPL.5
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Experimental studies of ionospheric propagation as applied to the Loran system 
1944

NBS IRPL 6
10.6028/NBS.IRPL.6
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Second report on experimental studies of ionospheric propagation as applied to the Loran system 
1944

NBS IRPL 7
10.6028/NBS.IRPL.7
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The prediction of usable frequencies over a path of short or medium length, including the effects of Es 
1944

NBS IRPL 8
10.6028/NBS.IRPL.8
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Maximum-usable-frequency graph paper 
1943

NBS IRPL 1
10.6028/NBS.IRPL.1
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Report to wave propagation committee on status of work of I.R.P.L. 
1943

NBS IRPL 2
10.6028/NBS.IRPL.2
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Nomograms for general long-time frequency allocation 
1943

NBS IRPL 3
10.6028/NBS.IRPL.3
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Methods used by IRPL for the prediction of ionosphere characteristics and maximum usable frequencies 
1943

NBS IRPL 4
10.6028/NBS.IRPL.4
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