Labels:barrier reef | book | crt screen | monitor | paper | person | reckoner | sky OCR: HEIGHT GIVEN CON TACTS 12SEPT '78 JUN 78 IB EACH SEE FIG S S-SIGNALUNI USING AND USING YAGI LINEARS LINEARS ANTENNAS 400 400 0.01 99.9 WITH SIGNAL STRENGTH LESS OR EQUAL TO Fig Distribution points signal strength reports to high -power stations us ing quads or to high- -power stations using either quads or Yagis as compared with the distribution curve for all reports to sta tions which gave height data.