UNCLASSIFIED 



SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) 



REPORT DOCUMENTATION PAGE 



READ INSTRUCTIONS 

 BEFORE COMPLETING FORM 



1. REPORT NUMBER 



NOSCTR217 



2. GOVT ACCESSION NO 



3. RECIPIENT'S CATALOG NUMBER 



4. TITLE (and Subtitle) 



FY77 SUBSEA ACOUSTIC TELEVISION (SUBSAT) TESTS 



5. TYPE OF REPORT & PERIOD COVERED 



Research and Development 

 October 1976 - October 1977 



6. PERFORMING ORG. REPORT NUMBER 



7. AUTHORfaJ 



A Gordon 



8. CONTRACT OR GRANT NUMBERS 



9. PERFORMING ORGANIZATION NAME AND ADDRESS 



10. PROGRAM ELEMENT. PROJECT, TASK 

 AREA a WORK UNIT NUMBERS 



Naval Ocean Systems Center 

 San Diego, California 92152 



H. CONTROLLING OFFICE NAME AND ADDRESS 



12. REPORT DATE 



March 1978 



Naval Ocean Systems Center 



13. NUMBER OF PAGES 

 26 



14. MONITORING AGENCY NAME 6 ADDRESSf/f different trom Controlling Office) 



15. SECURITY CLASS, (of thla report) 



Unclassified 



15a. DECLASSIFI CATION/ DOWN GRADING 

 SCHEDULE 



16. DISTRIBUTION STATEMENT (of thla Report) 



Approved for public release; distribution unlimited. 



Woods Hole Qceanographic Institution 



j woods 



17. DISTRIBUTION STATEMENT (of the abstract entered In Block 20, It different from Report) 



18. SUPPLEMENTARY NOTES 



19. KEY WORDS (Conttnue on reverse aide ft necessary and Identify by block number) 



underwater acoustics 

 acoustic imaging 

 submarine communication 

 underwater telephone 



20. ABSTRACT (Conttnue on reverae aide It necessary and Identify by block number) 



Experiments were conducted in December 1976 and January 1977 to test the feasibility of transmitting 

 and receiving slow-scan television (SSTV) through existing underwater telephones (UQCs). Off-the-shelf 

 monitors, recorders, and scan converters were installed on two submersibles and two surface craft. The 

 slow-scan hardware was installed without modification to the UQCs and without disabling the normal UQC 

 voice function. The slow-scan data rate was 7200 baud and occupied a 2.5-MHz bandwidth, fully compat- 

 ible with existing UQC equipment. Twenty-six test transmissions, each consisting of a number of slow-scan 

 frames, were made during the tests. While some of the pictures were of excellent quality, most were degraded 



DD,~ 



EDITION OF 1 NOV 65 IS OBSOLETE 



S/N 0102-014-6601 | 



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