What people are saying - Write a review
We haven't found any reviews in the usual places.
Early work at the National Bureau of Standards 1929196
Development of practical applications
International programs of ionospheric research
4 other sections not shown
approximate peak power April associated laboratory August automatic multi automatic multifrequency iono automatic multifrequency ionosonde Beltsville Boulder Laboratories Bureau of Standards C-3 automatic multifrequency C-3 CRPL Model Carnegie Institution critical frequencies CRPL Model C-3 December Dellinger delta antenna Department of Terrestrial DTM Model Equipment February film frequency ionosonde frequency range frequency sweep Geophys Gilliland height range Huancayo Institution of Washington International Geophysical ionosonde developed ionospheric data ionospheric research ionospheric soundings IRPL January July June Locally assembled Manual ionosphere recorder manual recorder March Maui maximum usable frequency microsec Model A ionosonde Model C-3 automatic Model C-3 CRPL modified NARSARSSUAK National Bureau NBS Model NBS Personnel NBS Tech November October Operations began oscillator oscilloscope Personnel in charge prediction pulse transmitter pulse width Radio Propagation receiver Section September sonde sounder Sterling Terrestrial Magnetism tion transmission U. S. Army U. S. Army Signal virtual height Watheroo Wiewara World Data Center XE-l