THE PROBLEM 



Analyze Omega phase differences recorded in port aboard 

 the oceanographic survey ships HMS VmAL and HR. MS. SNELLIU6. 



RESULTS 



Approximately 2500 hours of recorded phase differences 

 from 24 ports of call and five different lines-of-position indicate 

 that a 24-hour navigation capability of about 0.9 n.mi. (c.e.p.) 

 may be expected in an implemented Omega system, assuming only 

 present radiated powers and prediction ability. 



RECOMMENDATIONS 



Plan general refinements in the methods of synchronization 

 and prediction, employing the data compiled for this report, to 

 improve predictions. No further analysis specifically restricted to 

 the Atlantic is envisioned. 



ADMINISTRATIVE INFORMATION 



Work was performed from October 1963 to December 1965 

 under SS 161 001, Task 6101 (NEL A10461). The report was 

 approved for publication 10 January 1966 . 



MBL/WHOI 



03D1 ODMOSm a 



