Some Long-Distance Transmission Phenomena of Low-Frequency Waves

1 February 1933

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE

Vol. 21 (2) , 263-270
https://doi.org/10.1109/JRPROC.1933.227600

Abstract

From the results of a series of twenty-four-hour receiving measurements conducted here for more than two and a half years, some interesting phenomena are picked out and discussed. The main points of the conclusions reached are: (1) the daylight signal strength of Kahuku is greater than the night signal strength; (2) several successive crevasses of about a two hours' period are observed regularly in the signal strengths of Bolinas and Kahuku during the partial daylight hours.

Keywords

PARTICLE MEASUREMENTS
FREQUENCY MEASUREMENT
LABORATORIES
PHASE MEASUREMENT
TIME MEASUREMENT
TRANSMITTING ANTENNAS
CLOCKS
RADIO TRANSMITTERS