Page 920 



INDKX 



Kadio Acoustic Uanijiug (H. A. K.) Con. 

 posit ion (s)— continued. 

 Strength of— Continued. 

 Sound wave path ctTcct 



'rhccirt'lical 



u.sinK (lilfcicnccs of distance 



Synilxdization 



time intervals entered in Bonit) Record 



Time of , odicial 



for 



Reference 



.\o. 



6824 



6824 



6826 



7637 



6813 

 f6714 

 16811 

 /3313 

 13462 



Time re(iuire 



Trial 



Depth used in conjunction with 6815 



Need for 6815 



Recording not required 6815 



Velocity of sound , erroneous, effect on . 7636c 



When required 6812(a) , 



(0 



Practical use of 613 



protractor, Odessey 4537 



Description 4537 



Plotting R. A. R. distances with 4537 



Plotting R. A. R. positions with lyesL 



protractor, three-arm 4538 



Description 4538 



Plotting R. A. R. distances with 4538 



radio receivers (see Radio in R. A. R., receiv- 

 ers) 

 radio signal, identifying on chronograph tape _ 6851 

 radio technician {see Radio in R. A. R., tech- 

 nicians) 



scaled time, definition 6853(c) 



sheets, projections for 734 



ship's run correction 6853(d) 



Bomb Record, entering in 8311d 



Factors affect ine 6853(d) 



Formula 6853(d) 



Nature of 6853(d) 



table, sample {table 2i) 6853(d) 



smooth sheets (see also R. A. R. distance cir- 

 cles) . 7341 



Analyzing position data 7635 



Inking positions on 7637 



Protection during plotting 761 



Sounding-line crossings used in plotting .. 7634 



SiJacing soundings on 7722 



Station positions protected by celluloid 7631 



Velocity of sound reduction factors for use 



in plotting {table 36) 9614 



Velocity of sound used in plotting 7631 



Report on 8333 



sounding lines (see Sounding lines, R. A. R.) 

 Sounding Record use 81 



station(s) (see also Sono-radio buoys) j?, 



identification 

 Approximate position being unknown. _. 6852 



Automatic key no longer used 6852 



on chronograph tape 6852 



Signal-offset length used 6852 



Signal tone used __ 6852 



Successive time intervals used 6852 



Locating by short R. A. R. distances 



from three-point sextant fixes 2534 



names 



Entering in Bomb Record 831 le 



Hydrophone having been moved 2157 



Length of 2151 



on sono-radio buoy structures 2814 



Offshore located by sextant angles on 



peaks 2572 



points on smooth sheet protected- 7341 



Ship 642 



Advantages 642 



Description 262 



superseded by sono-radio buoys 642 



Shore— ; {2«| 



Advantages 641 



antenna 2615 



attendant, duties 641 



Booster, amplifying, at __ 2614 



Cable laying at 2613a 



Cable used at 2613 



Specifications 2613 



Circuits, special, electric, at , ad- 

 vantages I 2614 



D isad vantages 641 



electric equipment 2614 



Generator, electric, needed at 2614 



hydrophone, establishment 2612 



hydrophone, rendering temporarily in- 

 operative : 2614 



hydrophone sites 641 



Intensity of received sound at 8311 



(''), 



I'age 

 fi42 

 641 

 (i42 

 707 

 ()38 

 ti28 

 t)3() 

 214 

 26.5 



039 

 t)39 

 639 

 707 



637 

 557 

 377 

 377 

 377 

 378 

 703 

 378 

 378 

 378 



653 

 675 

 653 



653 

 653 

 653 

 653 



675 

 706 

 707 

 698 

 705 

 719 

 703 



881 

 703 

 783 



753 



147 

 595 



651 

 651 

 652 

 652 

 651 

 652 



777 

 66 

 64 



165 



142 

 676 

 596 

 596 

 151 

 596 

 147 

 595 

 595 

 150 

 595 

 150 

 149 

 149 

 149 



150 

 596 

 150 

 150 

 148 



1.50 

 596 

 777 



Radio .\eoustic Ranging (R. A. R.) Con. 

 .station(s) continued. Reference 



Shore— Continued. '^'^■ 



names 2157 



IKTSonnel _ 641 



Radio frequencies used 2616 



Radio power at 6443 



Servicing 641 



site, .selecting 2611 



Spacing ._ ., 212 



Use of __ 641 



Sono-iadio buoy {see also Sono-radio 



buoys) 643 



Spacing , 212 



Strays {see Chronograph tapes, strays, and 

 Radio in R. A. R., interference) 



symbolization . - ... 743(e) 



Types of 64 



Supplemental position data recorded in 



Sounding Record 8146 



survey (s) 

 Converting elapsed times to plotting inter- 

 vals 8311 



Conversion formula 8311 



Continuous , day and night, number- 

 ing iiositions 3311 



Depth ditYerences tabulated in Descriptive 



Report 842 A' 



PMxing positions at turns 3312(c) 



OfTshore referenced to submarine relief 



of previous surveys. - 2536 



Plotting methods described in Descriptive 



Report 842/ 



{3313 

 6812 

 record {see Bomb Record) 

 Records and reports required {list) 8351C 



Sounding crossings, tabulation required -J, -^-Z' 



Sounding lines in , following proposed. 3462 



Statistics 831 1 



Two vessels used, only one being equipped 



for R. A. R 3366 



Velocit y of sound records 8333 



Theory of 612 



time intervals, terminology.. 6853 



Use of 61 



Velocity of sound (see also Velocity of sound 

 in sea water) 



conditions favorable for R.A.R 6362(a) 



determined experimentally 63 



for plotting R A. R. (see Velocity of sound, 

 R. A. R.) 



reduction factors {table 36) 9614 



requirements 636 



velocity scale 4824 



Description 4824 



Purpose 4824 



Scales available 4824 



Use 4824 



Where used 3322 



Radiobeacon(s) {see also Broadcasting stations) 



broadcast on request 4442 



identification 4443(a) 



Radio bearings to 4443(o) 



Radio (in R. A. R.) 



frequencies 6441 



Authorized 6442 



Best .. 6441 



Effect on reception 6441 



Selection of 6442 



used at shore stations 2616 



interference 6441 



Atmospheric . 6441 



Communication 6441 



Avoiding . 6441 



Man-made . . 6441 



Controlling . . 6441 



Static 6441 



power 6443 



requirements for R. A. R 6443 



Shore station requirements 6443 



Sono-radio buoy requirements 6443 



receivers 6722 



Circuit requirements 6722 



Dial calibration 6722 



Frequencies 6722 



Gain-control requirements 6722 



Impedance of output . . 6722 



Manufacturers of 6722 



Requirements 6722 



Voltages 6722 



signals 



First use in distance measurement 611 



Identification of in R. A. R. (see also 



R. A. R. station identification) 6852 



Identifieation on charoncgraph tape 6851 



Page 

 66 

 595 

 151 

 601 

 596 

 147 

 62 

 595 



596 

 62 



688 

 595 



778 



778 



789 

 213 



788 

 214 

 637 



784 

 719 

 733 



264 



778 



231 

 782 

 556 

 653 

 555 



594 

 573 



881 

 593 

 425 

 425 

 425 

 426 

 426 

 215 



347 

 348 

 348 



599 

 600 

 600 

 599 

 600 

 151 

 600 

 600 

 600 

 600 

 600 

 600 

 600 

 601 

 601 

 601 

 601 

 630 

 630 

 6.30 

 630 

 630 

 630 

 630 

 630 

 630 



651 

 651 



