INDEX 



Page 927 



Keference 



Smooth sheet(s)— Continued. •'^o. 



plotter's initials to be on 7916 



plotting {see also Plotting) 



inspection of ..- 777 



Plotting soundings 772 



Verification of noted on smooth sheet _ . 7916 



Preparation of 73 



prepared at Processing Offices ._ 9241 



Preservation of , at Washington Office-. . 931 



preserved indefinitely 73 



Printed 7333 



Prior surveys, compared with 9343 



projection lines, intervals between (table 24) . 7323 

 projections {see Projections, polyconic) 



Protection of 731 



during plotting 761 



protracting 



completed before penciling soundings 7624 



Verification of 9332 



R. A. R. {see R. A. R. smooth sheets) 



Reduced scale copies of 721 



review (see also Review of hydrographic 



survey) 934 



Reviewed contains necessary prior sur- 

 vey data ___ 9343 



Reviewer's comparison with chart -__ 9345 



Rolling 7311 



Shipment to Washington Office 796 



Shoreline and topography 

 Revision reported in the Descriptive 



Report 842G 



Source identified in Descriptive Report 842G 



size, maximum 712 



size, standard < ^ ,, 



Sounding Record, to agree with 1825 



Soundings at positions, placement 7736 



soundings checked with Sounding Record..- 9333 



soundings, clarity of 773 



Soundings omitted from 7725 



Soundings on irregular lines taken from boat 



sheet 3352 



Soundings, penciling on H^g 



subplans 7751 



Supervision by Chief of Party 79 



Symbols, standard, must be used_ 721 



Temporary notations in soft pencil 731 



Temporary notations, removal of 9338 



title inked at Washington Office 9322 



Topographic surveys, compared with, 



by verifier 9334 



Topographic survey and data adjusted- _ 9342d 



Transferred soundings to be in colored ink 9335 



Transmittal of to Washington Office 796 



transmitted separately 836 



value 711 



vertification {see also Verification of hydro- 

 graphic survey) 



Verification of certain steps required 791 



Verification of, report ._ 9339 



Verification, of statistics 9339 



Vessel's track taken from boat sheet 3252 



Whatman's paper to be used. 7111 



Snake slip, use of 7131 



Snapper 



Bottom characteristics obtained with . . 3841 



Bottom types a is used in ' 4761 



Description 4761 



Detaching weight for use with 4761 



Lead size to be used with 4761 



limitations 4761 



sizes 4761 



Soap, used for arming lead 4664 



SociCtfi de Condensation et d'Applications 



Mfichaniques (S. C. A. M.) 531 



Sonic Depth Finder ''{siSl*^ 



Limitations 5131 



Operation 5131 



Sonic frequency (ies) {see also Frequencies, 

 sonic) 

 acoustic units, nondirectional properties of.. 563 

 transmitting unit 

 (First echo registered from sloping bottom 



using 563 



used in echo sounding 512 



Sono-radio buoy(s) {see also Buoys, control, and 

 R. A. R.) 

 adjustment {see also Sono-radio buoy ampli- 

 fier gain) 654 



Advantages 643 



749 



732 

 718 

 749 

 666 

 845 

 847 

 666 

 675 

 856 

 669 



666 



700 



850 



856 

 857 

 666 

 752 



788 



657 

 659 

 727 

 774 

 724 

 850 

 722 

 721 



226 

 714 



722 

 727 

 747 

 663 

 666 

 854 



851 

 855 

 853 

 752 



785 

 657 



748 

 854 

 854 

 210 

 657 

 661 



301 

 414 

 413 

 414 

 414 

 414 

 414 

 398 



500 

 193 

 441 

 441 

 441 



540 

 441 



608 

 596 



Reference 

 Sono-radio buoy(s)— Continued. No. Page 



amplifier 6431 597 



adjustment {see Sono-radio buoy amplifier 

 gain) 



design 6431 597 



gain adjustment 654 608 



Direct method 6543 610 



Methods, various.. 6544 611 



gain, definition 6541 608 



gain maintenance 6431 597 



gain measurements 



Apparatus for 6542 609 



Attenuator for , description 6542 609 



Circuit diagram fig. 135 609 



Direct method 6541 608 



Procedure 6543 610 



Methods, various... 6543 610 



gain, procedure for determining 654 608 



stability requirements 6431 597 



Time lag in 6431 597 



anchoring gear, elimination of noises in 283 171 



Anchoring in deep water 643 696 



antenna 



Coupling to transmitter 6433 599 



elevation 6433 599 



length 6433 599 



as R. A. R. stations 643 596 



difficulties in strong currents 643 596 



East Coast 652 604 



Advantages 653 608 



amplifier, description.. 6521 605 



antenna 6523 606 



batteries 6524 606 



Operating life 6524 606 



circuit diagram fig. 134 605 



compared with Vincent sono-radio buoy... 653 608 



curreHt requirements 6514 603 



Description.. 652 604 



Disadvantages 653 608 



electric equipment (feO 6525 607 



Hydrophone for 652 605 



keying circuits : 6522 605 



operation described 6522 605 



Operation without service 653 608 



radio transmitter... 6523 606 



Description... 6523 606 



frequency 6523 606 



operation 6523 606 



output 6523 606 



signal-shortening circuit described 6522 605 



silencing circuit described 6522 605 



structure 2841 178 



Materials required (to<) 2841(B) 179 



Specifications .- 2841(A) 178 



electric circuits detuned by flags touching 



antenna 2841(A) 179 



equipment, electric, principal parts {see also 



under name of specific part) 643 597 



Flags and banners on 2841(A) 179 



gain {see Sono-radio buoy amplifier gain) 



History 284 178 



Hydrographic surveying, use of in 25 110 



hydrophones {see Hydrophones) 



keying circuit 6432 598 



design 6432 598 



Purpose 6432 598 



time lag 6432 598 



Lightweight type : 2841 178 



located by 

 R. A. R. distances from other sono-radio , 



buoys 2573 143 



taut-wire traverse 2573 143 



Metal types {see Sono-radio buoy, Vincent) 



names on structures 2814 165 



operating difficulties 655 612 



Performance of Vincent and East Coast 



compared 6.53 608 



radio power 6443 601 



radio signal, length 6432 598 



radio transmitter 6433 598 



adjustment 6545 611 



Dummy antenna in 6545 612 



Circuit diagram fig. 136 611 



Methods 6545 611 



Testing 6545 612 



Coupling to antenna 6433 599 



design 6433 599 



frequency 6433 598 



power required 6433 599 



Types 6433 599 



range 643 596 



Subnormal , causes 655(o) to (d) 612 



Relieving buoy used with 281 163 



signal shortening, advantages of 6432 598 



signal-shortening circuit described 6522 605 



