INDEX 



271 



Echo sounding(s) (continued) 

 principles 



recording at odd lntervals_ 

 selection of 



spacing on smooth sheet- 

 supplemented by vertical 

 measurements 



3-76 

 5-55 

 6-«0 

 6-59 



Echo sounding instruments, 

 adjustment of index 



calibration 



EDO 185 (AN/UQN)- 



EDO-255 



808 Fathometer 



operator duties 



-5-73, 5-107 



3-76 



5-109 

 1-36 

 3-80 

 3-84 

 3-89 

 5-55 



phase comparisons, recording of 5-93 



Precision Depth Recorder (PDR)„ 3-81 



transducers 3-96 



Eddies 



indication of shoals 5-68 



location shown on smooth sheet 6-70 



Edmonston beam holder 5-11 



EDO 185 (AN/UQN) 3-77 



accuracy 3-78 



care in starting 3-77 



constant frequency power source .. 3-77 



initial setting and adjustment 3-80 



keying assembly (S-201) 3-80 



multiple stylii, use of 3-79 



operating characteristics 3-78 



operation 3-80 



paper speed 3-78 



range and scales 3-78 



servicing by technicians only 3-80 



to be used 1-35,3-63 



stylus belt speed, measurement of 3-78 



transducer 3-78,3-105 



use with FDR 3-81 



EDO 255 Depth Recorder 



characteristics, general description 3-84 

 calibrated velocity and 



variable frequency 3-85, 5-120 



errors, sources of 5-113 



frequency control 3-85,5-113 



manual 3-88 



mode, feet or fathoms 3-87 



phase adjustment. 



power supply 



range 



to be used 



transducer 



-3-86, 5-113 



3-108 



3-84 



808 Fathometer- 

 accuracy of . 



_l-35(b),3-63 



3-84, 3-104 



3-89 



3-91 



alignment of fathometer paper 3-93 



calibration and adjustment 5-111 



checking initial during phasing.. 



general characteristics 



locking of phasing head 



motor speed requirements. 



operating characteristics 



operating speed 

 paper speed 



phasing differences- 

 phase correction determination . 

 range 



3-94 



3-89 



3-94 



3-91 



3-90 



5-111 



5-111 



3-94 



5-112 



3-89 



sounding corrections, 

 speed count . 



-5-111, 5-112 

 5-110 



stylus arm length. 



to be used 



transducer 



voltage and gain 



Electric sounding machine . 



.-3-92,5-111 

 l-35(b),3-63 



3-103 



3-95 



3-72 



Page 

 74 



151 

 221 

 220 



158, 176 



74 



178 



12 



76 



78 



81 



151 



165 



76 



83 



156 

 226 

 129 



74 

 75 

 74 

 74 

 76 

 76 

 76 

 75 

 76 

 75 

 75 

 76 



12,69 

 75 



75,87 

 76 



78 



80, 188 



181 



80, 181 



81 



80 



80, 181 



88 



78 



12,69 



78,86 



81 



81 



82 



179 



83 



81 



83 



81 



81 



179 



179 



83 



180 



81 



179, 180 



179 



81, 179 



12,69 



86 



83 



72 



Section No. Pace 



Electronic control (see also Shoran, 

 Raydist, EPI) 

 shore stations 



lease of site 2-34 32 



located by triangulation 1-19 6 



selection of 2-35 32 



systems authorized 1-19 6 



Electronic distance circles 



construction 5-11 129 



conversion, microseconds to meters 



(EPI) 5-11 129 



conversion, statute miles to meters 



(Shoran) 5-11 129 



intervals related to scale 5-12 132 



layout of 5-11 129 



position plotting by 3-22, 5-12 51, 132 



use on smooth sheet 6-11 202 



Electronic equipment (see specific 

 equipment) 



identified in sounding record 5-91 165 



I H.B. Special Publication No. 39 3-62 69 

 Electronic systems 



calibration reports required 7-27 255 



Electronic Position Indicator (EPI) 



accuracy 3-26 53 



antenna, ground station, 



location of 3-28 55 



antenna, ship station 3-29 55 



calibrations 



frequency l-19(b),3-29 6,55 



recording of 3-29 55 



report required 3-29, 7-27 55, 255 



communication with shore stations 3-31 56 



control procedure 5-46 147 



directivity pattern, determinations 



of 3-30 55 



eflfect of ship's heading 3-30 55 



errors, causes of 3-26 53 



frequencies 3-24 53 



General description of — system 3-23 53 



installation aboard ship 3-27 54 



multiple ship use of ground 



stations 3-32 56 



not to be used for large scale 



surveys l-19(b) 6 



operation and maintenance l-19(b) 6 



personnel at ground stations 3-31 56 



plotting abstracts, use of 5-46 147 



Position fixing by— _ 3-32, 5-45, 5-49 56, 147, 148 



range l-19(b),3-25 6,53 



report on corrections 3-29,7-27 55,255 



selection of grround stations 2-35 32 



skywaves 3-32 56 



Engineers, Corps of 

 hydrographic surveys 



junctions with „ 5-16 135 



not to be repeated 5-2 126 



to be consulted for bridges and 



cables ..- 5-82 161 



Enlarged subplans on smooth sheet 6-6 201 

 EPI (see Electronic Position Indicator) 

 Equipment and instruments 



care of 3-5 44 



inventory 3-5 44 



navigation 3—4 44 



overhauled between seasons 2-17 25 



repairs 3-5 44 



requisitions 2-17,3-6 25,45 



sent to Washington Office 3-5, 3-7 44, 45 

 Erasures from smooth sheet 6-18, 6-93 205, 232 

 Erasures not permitted in sounding 



record 5-85 162 



Examinations, field, registration of 6-78 228 



