Research Memorandum 9 FULL-SCALE HF ANTENNA PATTERN MEASUREMENTS MADE WITH TRANSMITTER TOWED BY AIRCRAFT

摘要

A practical method of making full-scale pattern measurements of HF antennas in the field has been developed and successfully used. An airplane tows a small transmitter operating on four frequencies around the antenna to be measured;it is thus possible to record four antenna patterns simultaneously.nThe battery-operated transmitter and antenna assembly is small enough to constitute an elementary dipole;provision is made for causing the radiated signals to be either vertically or horizontally polarized.