Detailed instructions for use are in the User's Guide.
LMS-1O
Loran -c Receiver
INSTALLATION AND OPERATION INSTRUCTIONS
·LOWRANCE ELECTRONICS, INC.
LITI-lO IN U.S.A. 988-0116-03
12000 E. SKELLY DR., TULSA, OK 74128
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
WARNING! THIS LORAN SHOULD BE USED ONLY AS AN AID TO NAVIGATION. A CAREFUL NAVIGATOR SHOULD NEVER RELY ON ONLY ONE METHOD TO OBTAIN POSITION INFORMATION.
NOTICE:
MAKE CERTAINTHE LORAN IS DISPLAYING THE CORRECTPOSITION IN LATITUDE/LONGITUDE BEFORE NAVIGATING WITH THIS PRODUCT. THE POSITION MUST BE CORRECT FOR THE NAVIGATION FEATURES IN THIS UNITTO WORK
PROPERLY.
170°
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
75
TABLE OF CONTENTS
LORAN-Genera] ACCURACY HOWLORAN-C WORKS INSTALLATION - DpIayUnil INSTALLATION -LC-1 Loran-C Module POWER CONNECTIONS LORAN OPERA11ON- INITIALIZATION SELECT CR1 ENTERING INITIAL POSITION LAT/LONG CYCLE ERRORS AND SNR AUTOMATICAND MANUAL MODES MANUAL STATION SELECTION Stations in Use Viewing ViewingReornerided Stations Selecting Stations PRIMARYANDALTERNATESOLUTICNS DISPLAY Overview TD/LL HEADING (HDG) TIMETOGO (TIC)
1 1
3 4 7
8
1
-
ID
12
12 12 13 14 15 16 17 17 18 18 19 19
-
DISTANCET000(DTG) SPEED OVERGROUND
VELOCITY MADE GOOD TRUE/MAGNETIC BEARING CROSS TRACK ERROR (X1E) NORTH PACIFIC LORAN-C CHAIN GR1 9990 REGONALMANAGER COMMANDER. PACIFIC MREA.ALAMEDA. CA CHAIN MANAGER:CDMMANDER. 17THCDASTGUARD DISTRICT. JUNEAU, AK COORDINATOR OFCHAINOPERATIONS LOCATION:LORMONSTA KODIAK. AK CONTROL SITE: LORMDNSTA KODIAK, AK
COSU. luuI PWR XMTTrER
ANTFFN.42 1KW) TRANOENT
20
21 21
CROSSTRACKERRORPERARROW SIGNALTONOISE RATIO (SNR)
Fix DUALITY
22
22 22 23 25 28 27 28 28 29 29 29 29
31 31 31 31
I-IOWTOSAVEAWAYPOINT SavingCurrentPosition (QuickSaveFeature) Enter NewWaypoint LatitudelLongitude EnterNewWaypoinl TDs 604
ECD 0.0 0.0 .0,6 NOTES
D53IG. MASTER XRAY YANKEE
STATIIY4
COOn. 670912301 170 l000.eW 624944.ON 173 1040.0!
ANTENNA 625 FT MOIOPOI.E
ERASING AWAYPDINT WAYPOINTRECALL WAYPDINTCOUNTEROFFSET
-
St PALL
AK
325 320
GOTOWAYPOINT VIEWDESTINATION WAYPDINT VIEWSTARTING WAYPOINT
ROUTES Creating aRoute Following aRowe Can00lling aRoute Eraaing aRoute ALARMS AnochorAlarrn ArrivalAlarni ASF CORRECTION NMEAOUTPUT
ATru
AK PORT CLARENCE
AK
11000/ 3a7L25 2t000/ 3058,05 43000/ 3600.45
ANTFPW-42
601OLE
1350 Ft
62SF]
0t14403N
1605312.6W 57262029)
MVFR4-42
10
400
601tW0L5
626 FT 0.0 OUALRA1EW/OHI7000
ZULU
NR0W
CAPEAK
162= 113W
AN/FPN44A
0fl4oPCt0
32 32 35 36 36 37 38 39 39 40
41
24HOURCLDCK-TIMER
LIGHTS CLEAR LOWER DISPLAY Fl and F2 RESTARTLDRAN
SeledNewORI EnterNew Initial Poaition
RESET VIEWING T.D.S IN USE MAGNETIC VARIATION VERSION NUMBER STAT SIMULATOR HOWTO OBTAIN SERVICE COMMAND LIST KEYBOARD 2nd FUNCTION LIST FACTORY DEFAULTS
42 42 42 42 43 43 44
45 45
Copyright© 1989, Lowrance Electronics,Inc. All rights reserved.
All featuresand specifications subjectto change without notice. 74 PDF compression, OCR, web-optimization with CVISION's PdfCompressor
LORAN-C
ICELANDICCHAIN GRI 9980
LEGEND:
o CONTROL MONITOR
*
·
TRANSMITTiNG
Approximat. Limitof Conre ---1:3 SNP md 4NM Fix AccurmeyjSG%2dRMS).Noise 46dB M SANDUR W ANGISSOQ X EJDE
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
73
LORAN - GENERAL The word "LORAN" is short for LOng RAnge Navigation. It's a navigalion systemthat usespowerful low frequency(100 kHz) radio transmitters and sensitivereceivers. Withthissystem,you can determine your positionover long distances. Loran was developed and usedduring WorldWarII. At that time it was called Loran-Aand operated at a higher frequency. Research and development continuedduringthe fifties. The currentversion, LoranC, was introduced in the sixties. It worksover longer distancesthan Loran-Aand it's easier to use.
ACCURACY
ICELANDIC LORAM.C CHAIN GRI 9980 REGIONAL MANAGER. COMMANDER COASTGUARDACTIVITIES EUROPE, LONDON, UK CHAIN MANAGER COMMANDER COASTGUARO ACTIVITIES EUROPE. LONDON, UK COORDINATOR OF CHAIN OPERATIONS LOCATION LORMONSTA KEFLAVLK. ICELAND CONTROLSITE;LORMONSTAKEFLAVIK ICELAND
D55.
56867EA W24EKEY XAAY
&ATJa1
SN4DUA ICELAND ANGIS000 OAES4LAND EJDE.FAEAOE IS..OESWFK
C(R.
5521,5W
6454 26.64 5959 451627.5W 6217 55.64 0704 26,5W
CDULS.
PWR
Iv,)
(MITtEn
AWFFSJ.45
1KW)
TRMSSMff ANTB4MA I350FT
N62I LCD 0,0 +1.0 0.0
The absoluteaccuracyof Loran is between 0.1 and 0.25 nautical miles, depending on your location. Repealableaccuracy(yourability to returnto the samespot) is 100 feet or better. The difference between the two types of accuracy is important. Absoluteaccuracy tells you where you are on the map. Repeatable accuracylets you find your way back to the same placetime aftertime.
NOISE
'500
765
Ma40Pa6
625 FT 625 FT
I7N
11055!-
NQFFW4S
4068.62 35555! 2814$4
5flIOLE
DUALRATEW?09l7920 DUALRATEOWI757O
NWFPN-44 325 MIY4C9OLE
However,the accuracy you experience may not be as good as the numbersabove suggest. The crossing angle of the lines of position affectsthe accuracy. The sharper the crossingangle, the more chance for position error. A ninetydegreecrossingangle is best, but it can be as low as thirty degrees withouta large positionerror. If you wish to doublecheckyour Loran, first pick a spot on thechart that is clearly marked with latitude/longitude marks. Then go to it. Once you arrive, let the Loran settle, then compare the position informationon the LMS-10 to thechart. It should be very close. HOW LORAN-CWORKS The Loran systemconsistsofthree to fivetransmitterstations.These are called a "chain." The letter "M" designatesthe master station inside the chain. The otherstations in the chain are the secondaries. Their names are W, X, Y, and Z, althoughnot all chains have four secondarystations. The secondary transmitters are synchronized with the masterwhich transmits at precise time intervals. This time interval is calledtheGroup Repetition Interval or GRI. Eachchain has a different GIRl.
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
1
72
The secondarystations transmitat precisetime intervalsafter the master station transmits. Since thesetransmitters are located hundreds of miles apart, it takes a different time for thesignals from each transmitterto reach you. The Loran receivermeasuresthis time differencebetween the masterand two ofthesecondaries,the LMS10 automaticallychoosesthebest master-secondary pairs for your location. Thetime difference or (TO) is measured in micro-seconds. PlottingtheTO on a chart with Loran-C lines results with your position somewhereon a line of position (LOP). A line ofposition is an imaginary line on which the time delay between the masterand one ofthe secondaries is the same. In this example the boat is located somewhere on the 14605.2 LOP.
LORAN-C
NORTHWEST PACIFIC CHAIN GRI 9970
The Loran receiverthen measures the time differencebetween the master and anothersecondary. In this exampleit's 31882.8. If you plot this LOP on a chart, you'll notice that it crossesthefirst line-ofposition. Your positionis at the intersection of thetwo lines.
0
AsprnlwdnLS,tof t.nr.p-- 13$fl rid S )M Fis£ncy (P5% 2flMS(.Pa... 44d1
I
II
IWOJIMA HOXXAIDO GESASHI
W MARCUS IS.
--
--.
---_
1
.,
t 2
X
3ARAGADA 'C.C
__..._.___.___
-.
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
2
71
All Loran-C receivers work on this principle. Most modern receivers also display latitudeflongitude. The receivertakes the TD information and, using a complexmathematical formula, convertsit to latitudef
longitude position data. You can displayboth TD's and latitude! longitude on the LMS-10 to determine your position.
It you wish to know moreabout Loran-C, orderthe United States
Coast Guard's book "Loran-C USER HANDBOOK." It's an excellent bookthat describesLoran in greaterdetail. Loran-CUser's Handbook COMDTINSTMl 6562.3
Superintendent of Documents U.S. Government Printing Office
Washington,D.C.20402 Code #050-012-00171-5, 1980
NORThWEST PACIFIC LORAN.C CHAIN CR19970
REGIONAL MANAGER COMMANDER. PACIFICAREA, ALMAEDA, CA. CHAIN MANAGER COMMANDER, 14THCOASTGUARD DISTRICT,I-IONOLULU, HI JAPAN COORDINATOR OFCHAIN OPERATIONS LOCA11ON. COMMANDER. FAREASTSECTION. YOKOTA, CONTROL SITELORMONSTAYOKOTA, JAPAN COBIL
DES'S. MASTER WHEXEY &ATTa4 CDOR. lusI XMITrER AWFFN-45
110801
There is a small chargeforthe book.
PWR (XW} 1815
WNSMFr
ANTENLA 1380FT
N0l
0.0
EUD
NOTEE
M0JI JAPAN
HOKKAIOO
141193020
4283.58 38080! 8686.17 58080/ 448328 2528.84$ 81080
244E03.E14
Magopa.E
1280FT MWOPOLE G2SFT Ma4OPOLE 828 FT 0.0 0.8 0.0 DUALRATEW/0RI5970 DUALRATE W10918970
INSTALLATION- Display Unit Mount the displayunit in anyconvenient location, providedthere is clearance when it's tilted for the bestviewing angle. Holes in the bracket's base allowwood screw or through bolt mounting. Place a pieceof plywood on theback of thin panelsto securethe mounting hardware Makecertainthere is enough room behindthe unit to attach thepower and Loran module cables.
IMRCUEISLAND 241707.914 JAPAN 153 5853,2E JAPAN 424437.111 1134309.25 283825.011 1280886.45 1327E0.IN 444933.00
ANIFPR145 AN/FPW4S ANPPN'IS
2150 800 500
XMY
YANKEE ZULU
GESASHI JAPAN BARRIGADA
Ma40LE
7SOFT
3 PDF compression, OCR, web-optimization with CVISION's PdfCompressor
70
You can routethecables through a three-quarter inch holein the mounting surface. First, bring the Loran module'scable up throughthe hole, then pass the powercabledown it. After routing the cables,fill the holewith siliconerubber adhesive (RN). Offset the bracket to cover the hole. Routethe cables through the slot in the bracket.
SLOT
INSTALLATION- LC-1 Loran-C MODULE
Enclosed with your the LMS-1O is a LC-1 Loran-C module. This contains thecomplete loran receiver. When choosing a mounting location for the LC-1, remember to install theLC-1 whereit's clear of other antennas, wires, masts,or otherobstructions. A high locationis preferred, however for lightning protection, the antennashouldn't be the highest part of the boat. The antenna shouldbe mounted vertically. Make certain it is as far away as possible from VHF radio antennas.
Improperperformance can also occur if the antennais mounted too closeto metalobjectssuch as tuna towers. Again, a locationthat places the Loran assembly in the clearis preferableto one that is high and obstructed.
You mustpurchasean eightfoot stainlesssteel or fiberglasswhip antenna. The threads are standard 318"-24 for the whip. A ratchet mount base is most commonly used to mountthe Loranto the boat. The base mountingthreads are conventional 1"-14 machine thread (NOTpipe thread). Thisallowsthe useof standardantennamounting hardware.
Tightenall hardware securely.
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
4
69
The cable supplied with the LC-1 is thirty feet long. Do not cut the cable lilt'stootong. Instead, coil and store it out of the way. An extension cable is available it the cable is too short. Ask your dealer or call your local servicecenteror the Lowrance FactoryCustomer Service department for more information. The LC-1 can be attachedto a swivel bracket or hollow extension
mast, it desired. POWER CONNECTIONS
The LMS-1 0 works from a twelve-volt battery systemonly. You can attach the powercableto an accessoryor power buss, however if you have problems with electrical interference, then attachthe power cable directlyto the battery. If the cable is not long enough, splice #18 gauge wire onto it.
NORTHEAST U.S. LORAN-CCHAIN GRI9960 NY REGIONALMANAGERCOMMANDER. ATLJTICAREA. NEWYORK. CHAINMANAGER COMMANDER. ATLANTICAREA, NEWYORK, NY COORDINATOR OF CHAIN OPERATIONS LOCATION: LORSTA SENECA, NY CONTROL SITE: LORSTA SENECA, NY
CDEU. 00210. WASTER WHISKEY XRAY YAM(EE ZLLU STATIa4 SENECA,NY COCA. 424250.621 754933.9W
(56)
XMTTER
MOIFFT'144
PWR (KWI 800 360 320 550 460
IRAPffiMIT
ANTBNA -700FT' MGIOFOLE
SLT 525 FT MG4OFOLE 'TIP 625 PT
POH ECU 0.0 0.0
NOIES DUALRATE500915972
DUAJ.
I.E CARIBOU,
NNJI1JCKET MA CARQJ(A
4648271
575537.7W
Il0
(56HC0SI
N4WP9442 MUFPR412
BAlEW/OBE93O
2757.20
4115ThEI.
555835.1W 340346.IN 775446.7W 3551 (7.91 6729121W
250
1502.93 39060! 3221.64
05
0.0
DUALRATEW/0RI5930 DUALRATEW/ORI7SSO DUALRATEW!0R18570
WFFI4A2
A9UFFS+44
EECH,NC
DANA*4
The power cable has three wires; red, white, and black. Red is the positive lead, black is negative or ground. Attach the in-line fuse holder to the red lead as close to the power source as possible. For example, if you have to extend the powercable to the battery or power buss, attach thefuse holder to the battery or power buss. This will protect both the unit and the powercable in the eventof a short. The white wire is for a NMEA interface. The LMS-1 0 sends steering data for an autopilot through this wire. If the white wire is not used, tape the end so that it cannot short.
To "P"
connector
540
3152.20
M4OPQ.E
'5.5
SPUCEANDTAPE.
FUSE HOLDER
TO AUTOPILOT'S NMEA INPUT
68 5 PDF compression, OCR, web-optim ...