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B AngleofArrival Measuring Equipment
Calibration of the Measuring Equipment
A Qualitative Observations
3 other sections not shown
amplifier angle deviation Angle-of-arrival data ANGLE-OF-ARRIVAL MEASURING EQUIPMENT angles measured ANGLES OF ARRIVAL angular spread antennas arrival angle attributed average computed angles data for September detector dipole effect end of transmission evident from Figure Figure 14 GREENWICH MEAN ground calibration height of reflection increase indicated intensity record intermediate frequency ionosphere low angles lower ray lower two-hop mode magnitude measured angles decreased mixer modes of propagation muf failure muf is approached null position observed one-hop mode one-hop Pedersen ray oscillograph oscilloscope period of transmission phase method phase shifter PST on September pulse radiation pattern range of angles reflection points regular shift relative field intensity rise in field September llth sharp fall occurred sharp rise shown in Figure sky wave Stanford virtual height sweep tuned circuits two-hop failure variable phase varied velocity of propagation vertical angle virtual height data voltages W W V Washington-Stanford path wave frequency wavelengths