CONTENTS 



TABLES 



INTRODUCTION . . . page 5 

 INSTALLATION OF EQUIPMENT 

 SUPPORT ... 6 

 RESULTS AT SEA . . . ? 

 RESULTS IN PORT . . . 11 

 CONCLUSIONS . . . 26 

 REFERENCES ... 27 



Average Phase Differences at Night • • -page 13-15 

 Typical Discrepancies Between Observed and Predicted 

 Phase Differences ... 24 



ILLUSTRATIONS 



1 Early Omega system accuracy (Atlantic): Forestport-Summit 



and Criggion-Summit . . . page 9 



2 Early Omega system accuracy (Atlantic): Criggion-Summit 



and Haiku-Summit . . . 10 



3 Typical 10. 2-kc/s Omega phase difference . . . 12 



4 Phase perturbation over short paths at night . . . 17 



5 Bathurst, Gambia: Forestport-Summit, 10. 2-kc/s Omega 



phase difference , . . 20 



6 Bridgetown, Barbados: Criggion-Summit, 10. 2-kc/s Omega 



phase difference . . . 21 



7 Charleston, S.C: Haiku- For estport, 10. 2-kc/s Omega phase 



difference . . . 22 



8 Den Helder, Netherlands: Forestport-Summit, 10. 2-kc/s 



Omega phase difference . . . page 23 



9 Las Palmas, Canary Islands: Criggion-Forestport, 10. 2-kc/s 



Omega phase difference . . . 24 



REVERSE SIDE BLANK 



