Figure 3. SUBSAT hardware. 



(a) Gray scale 



(b) Girl 



(c) Test pattern 



Figure 4. Closed-circuit quality slow-scan frames. 



Procedure C provided for acoustic transmission of live video from the SEACLIFF while 

 at the same time recording the transmission locally so that comparisons could be made with 

 the received image. Procedure D allowed transmission of an extended period of gray scale 

 directly from the Robot 400. This allowed for extended transmissions of known material 

 even in the event of a tape recorder malfunction. 



Once the equipment was installed, NOSC personnel trained SEACLIFF enlisted per- 

 sonnel on procedures A-D. After a 20-minute instructional period personnel originally un- 

 familiar with the slow-scan equipment were able to perform all procedures. A written copy of 

 the procedures was left aboard SEACLIFF for reference during the dive. No problems trace- 

 able to improper operation of the slow-scan equipment by SEACLIFF personnel were evident. 



11 



