36 CONCLUSIONS AND RECOMMENDATIONS 



12. Investigate the development of new diver pressure gages for the deeper depths ex- 

 pected in the future. Keep in mind the necessity for fail-safe operation when divers are work- 

 ing above their saturation depth. 



13. Provide snap hooks for carrying tools and other gear on the diver's belt. 



14. Improve the method of coding bottom boundary and tether lines. 



COMMUNICATIONS AND INSTRUMENTATION 



1. Reliable communications must be developed for swimmer to swimmer, swimmer to 

 habitat, and swimmer to staging vessel. 



2. Reduction of ambient bacl^round noise will improve communications using existing 

 communications equipment. 



3. Direct communications should be available between the Sealab diving station and the 

 staging-vessel diving platform. 



4. Provide high-resolution vidicon tubes for accurate TV monitoring of aquanaut activity. 



5. Investigate improved methods of sealing habitat TV cameras against penetration by 

 the helium atmosphere. 



6. At least three stations in the habitat should be monitored by TV continuously. These 

 are the gas station, watch station, and entrance area. 



7. Investigate methods of protecting TV tubes against damage by direct light flashes, i.e., 

 photographic flash bulbs. Heat-absorbent glass with absorption characteristics matched to the 

 flash-bulb intensity characteristics should solve this problem. 



8. An Integrated oceanographic suit of instrumentation should be incorporated in future 

 Sealabs employed for oceanographic purposes. 



9. Oceanographic instrumentation read-out should be internal, with external data storage. 



