NorthStar Navigation M121 manual

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Co nt e n t s 1 Intr od uc ti on ............................................................................................................................................................................. 5 1 - 1 O ver view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

10 Sonar f i sh fi nd ing : Wi ndow s ................................................................................................. .................................................. 42 1 0 - 1 So nar histor y wi ndow - no sp lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [...]

1 9 Set t ing u p the M1 21 /M84 ....................................................................................................................................................... 7 0 1 9 - 1 Setup > System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

Northstar M121/M84 Installation and Operation Manual 4 It is your sole responsibilit y to install and use the inst rument and transducer(s) in a manner that will not cause accidents, personal injur y or proper t y damage. Always obser ve safe b oating practices. The choice, location, and inst allation of transducers and other components of the s ys[...]

Northstar M121/M84 Installation and Operation Manual 5 1 Intr o du cti on Feat ure Type Se e Re qui res General How to use the keys and w indows 2 T roubleshooting Appendix B Simu lat e mode 2-6 Gloss ar y of spe cial names Appen dix C Specifications Appendix A MOB Man overb oard key 2-4 Naviga tion Over v iew of how to navigate 3- 1 GPS fi x Findi[...]

Northstar M121/M84 Installation and Operation Manual 6 1 - 2 Cleaning a nd maintena nce The Ins trument screen is covered by a proprietar y anti-ref le ction coating. T o a void damage, clean the screen only with a damp cloth and mild detergent when dirt y or covered in sea salt. Avoid abrasive cleaners, petrol or other solvents . If a plug- in car[...]

Northstar M121/M84 Installation and Operation Manual 7 CAUTION Handle plug- in cards carefully. Keep them in their protective c ases when not plugged into the M 1 2 1 /M8 4. Keep the M 1 2 1/M84 card cover closed at all times to preven t moistur e from en teri ng the card com partment. 1 - 3 Plug-in ca rds The M 1 2 1/M84 can use t wo kinds of C - [...]

Northstar M121/M84 Installation and Operation Manual 8 1 -4 Removing and re placing the di splay unit If the M 1 21 /M84 is br acket mounted then it can easily be remove d for secur it y . Removing the display unit: 1 T urn the M 1 2 1 /M84 o f f (see se ction 2- 2) and put the dust cover on. 2 Loosen the k nobs on the mounting br acket and lif t t[...]

Northstar M121/M84 Installation and Operation Manual 9 2 Basic Opera tion Over view of the M 1 2 1 keys q ESC – Go back to an earlier menu or wind ow . In char t mode centers char t at boat ’s position. w DISPLA Y – This is a power ful key that allows you to setup the display the way you want. Main displays can be s aved as favor ite displays[...]

Northstar M121/M84 Installation and Operation Manual 10 Note: Display refers to ALL windows and the data header/Compass Window refers to a par t of the display in which a par ticular f unc tion is shown e.g. The Char t wind ow on a Char t + Sonar display . Over view of the M84 keys q ESC – Go back to an earlier menu or wind ow . In char t mode ce[...]

Northstar M121/M84 Installation and Operation Manual 11 2 - 1 Using the keys In this manual: Press means to push the key for less than a second. Hold means t o hold the key down. The internal be eper be eps when a key is pressed (to adjust the b eep volume, see s ec tion 19 -1 ) . Using the menus Oper ate the Instrument by selec ting items from men[...]

Northstar M121/M84 Installation and Operation Manual 12 2 - 2 T urning on a nd of f / auto power T urning on manua lly If the Instr ument is not wired for auto power , press to turn the unit on. If ne cessar y , adjust the display to be easy to read ( see se c tion 2- 3). Auto power If the Instr ument is wired for auto power (see sec tion 20 - 4), [...]

Northstar M121/M84 Installation and Operation Manual 13 The MO B feature saves the boat’s position and then navigates back to this point. 2 -4 Man overboard ( MOB) If t he NM EA o utp ut (aut opil ot) i s on , the Instrument ask s if the autopilot is active. Select: No : Use the Instr ument to manually navigate to the destination MOB wayp oint ( [...]

Northstar M121/M84 Installation and Operation Manual 14 T o show on e of the main windows f ull-size, press DISPLA Y and selec t the win dow . 2 - 7 The mai n windows Note 1 The wind ows available dep end on the optional sensor s and instrument s that are installed (see sec tion 1 - 1 ). 2 Set up commonly use d windows as favori tes and press to sw[...]

Northstar M121/M84 Installation and Operation Manual 15 T o show on e of the other windows f ull-screen, p ress DISPLA Y , selec t M o r e ... and sele c t the window. Press ESC to return from one of these windows to the previous window.[...]

Northstar M121/M84 Installation and Operation Manual 16 2 - 7 - 1 Multi window displays The M 1 2 1 /M8 4 can show up to four windows at once, for example Char t, So nar , Gauges and Vid eo: Adding a window to the display Press DISPLA Y , sele ct Ad d window and s elec t a wi nd ow to a dd . T h e M1 21 /M 8 4 au toma ti ca ll y rearranges the disp[...]

Northstar M121/M84 Installation and Operation Manual 17 2 - 7 - 2 Favorite displays The M 1 2 1 /M8 4 has a list of commonly use d displays, called f avorite displays. There can b e up to six favorite displays. Each display can have one or more wind ows plus a data header (see se c tion 2- 7 - 3) and a compass (see se ct ion 2- 7 -4). S et up favor[...]

Northstar M121/M84 Installation and Operation Manual 18 2 - 7 - 3 Data header The displays can sh ow data at the top, called the data header. When you sele c t a window from the display menu (see sec tion 2- 7) the M 1 2 1 /M8 4 displays an appropriate data header for the window . Each f avorite display (see sec tion 2- 7 - 2) has its ow n data hea[...]

Northstar M121/M84 Installation and Operation Manual 19 3 Navigat ion: Char t 3- 1 Introduction to navigating The char t win dow shows the char t, th e boat ’s position course and navigation data. The Ins trument has t wo ways of navigating, going s traight to a point or following a route. 3- 1 - 1 Navigating to a point When the Ins trument is na[...]

Northstar M121/M84 Installation and Operation Manual 20 Going to a point on the chart 1 Switch t o a char t window. 2 Move the curso r to the destination point: either use the curs or keys or use Find (see sec tion 3- 2 -5 ). 3 Press MENU and selec t Got o curs o r . Starting a route from the routes window: 1 Go to the routes window . 2 Then fo llo[...]

Northstar M121/M84 Installation and Operation Manual 21 A typical chart window shows: 3- 2 Char t window T o g o to the Chart win dow: • Press DISPLA Y and selec t Chart A Data head er . T o turn the data of f or on or to change what data is displayed (see s ec tion 2- 7 -3) B Comp ass (see sec tion 2- 7-4) C Chart s cale (see se c tion 3- 2 - 3)[...]

Northstar M121/M84 Installation and Operation Manual 22 position, and the latitude an d longitude has a cursor s ymb ol to show this: 36° 29.841’ N or S Latitude 175° 09.012’ E or W Longitude 3-2-1 Chart modes The Chart has two modes: Centre on boat mode To switch to centre on boat mode in the chart window, press ESC . The boat is at the cent[...]

Northstar M121/M84 Installation and Operation Manual 23 To see stored information about nearby symbols press MENU and select Chart info . Then follow step 3 above. 3-2-5 Finding a chart symbol T o f ind and display a char t s ymbo l: 1 Press MENU and selec t Fi nd . 2 Selec t the t y pe of sy mbol : Waypoints, Routes, Port s by name, Ports & s [...]

Northstar M121/M84 Installation and Operation Manual 24 T rack ing records the boat ’ s position to memor y at regular intervals, which can b e: Tim e i n t e rva l s. Or di stan ce in t ervals. The tr ack of where the boat has b een can be displayed on the char t. T he Inst rument can display one track while recording another . T o wor k with tr[...]

Northstar M121/M84 Installation and Operation Manual 25 4 Video window The v ideo window sh ows a pict ure from a vide o device, such as a camera. T he vide o window requires a vide o device to be installe d. T o se lec t the vide o window, pr ess DISPLA Y and select Video. Adjusting the video picture color 1 Press MENU . 2 Press or to highlight a [...]

Northstar M121/M84 Installation and Operation Manual 26 6 Navigation : W aypoints A waypoint is a position that you can set on the Instrum ent char t, for ex ample a fishing sp ot or a point on a route. The Instrument can have up to 3000 w aypoints . A waypoint can b e creat ed, changed or dele ted. A waypoint has: A name (up to eight characters). [...]

Northstar M121/M84 Installation and Operation Manual 27 6- 1 Waypoints wi ndow T o go to the wayp oints window, press DISPLA Y , select Mo re , then s elec t Way p oints . The w aypoints window is a list o f the waypoint s that have been entered, each with waypoint symb ol, name, latitude and longitu de, distance and bearing f rom the boat, t y pe [...]

Northstar M121/M84 Installation and Operation Manual 28 Editing a waypoint from the waypoints window 1 In the waypoint s window, pr ess or to highlight the waypoint to edit. Press MENU and selec t Ed i t . 2 Change the way point data (see sec tion 6 - 2 - 7). 6- 2 - 4 Displaying a waypoint on the cha rt This goes to the char t wind ow , and shows t[...]

Northstar M121/M84 Installation and Operation Manual 29 7 - 1 Routes window The routes window is a list of the routes that have been entered, each with route name, star t waypoint, end w aypoint, number o f legs and total distance. T o go to the routes window , press DISPLAY , select Mo r e , then selec t Routes . If there are more routes than will[...]

Northstar M121/M84 Installation and Operation Manual 30 1 In the char t window, press MENU an d selec t New r oute . 2 The route is given a default name : i Cha nge the na me if neces sar y . ii Sele ct OK . 3 T o enter the legs of the route: i Move the cursor to the st ar t of the route and press ENTER . ii A waypoint is creat ed with a default na[...]

Northstar M121/M84 Installation and Operation Manual 31 5 T o remove a wayp oint from the route: i Selec t the wayp oint to r emove. ii Press MENU and selec t Re m ove . 6 Rep eat this process un til the route is finished. 7 Press ESC . 8 Display the route on the chart (se e sec tion 6 - 2-3) and check that the route does not cross land or dangerou[...]

Northstar M121/M84 Installation and Operation Manual 32 GPS worldwide navigation The US Government op erates the GPS sys tem. T went y-four s atellit es orbit the ear th and broadcas t position and time signals. T he positions of these s atellit es are constantly changing. T he GPS receiver analyses the signals from the closes t satellites and calc[...]

Northstar M121/M84 Installation and Operation Manual 33 The s atellite window has information about the GPS satellites and GPS position. T o go to the s atellite window , p ress DISPLAY , select Mo re , then s elec t Satelli te . The satellite window shows: 8- 1 Satel lite window A Status of GPS antenna, for exampl e Acq uiring , GP S f ix , No GP [...]

Northstar M121/M84 Installation and Operation Manual 34 A School of fis h B Single f ish C Hard bot toms such as rock and coral show as wide bands D Sof t bot toms such as mud, weed an d sand show as narrow bands 9- 2 Interpreting the display The s onar windows do not show a f ixed distance travelled by the bo at; rather , they display a histor y ,[...]

Northstar M121/M84 Installation and Operation Manual 35 CAUTION Planing hulls at speed pro duce air bubbles and turbulent water that bombard the transducer . T he resulting ultrasonic noise may be picked up by the transducer and obscure the real echoes . The s croll spee d can be s et by the user to display either a longer histor y with less f ish [...]

Northstar M121/M84 Installation and Operation Manual 36 Shadows Shadows are creat ed around areas where the ultrasonic b eam cannot ‘see’ . T hese areas include ho llows on the bot tom or beside rock s and ledges, where the s trong echoes returne d of f the rock s obs cure the weak echoes of th e fish and may also creat e a double bot tom trace[...]

Northstar M121/M84 Installation and Operation Manual 37 A Narrow angle , mor e detai led 200 kHz cone B W ide angle, less detailed 50 kH z cone The 20 0 kHz f requenc y gener ates a higher definition p ulse which produces little shad ow and returns excellent detail over a small area of bot tom. Therefore, it gives excellent bottom discrimination ca[...]

Northstar M121/M84 Installation and Operation Manual 38 50 kHz display 2 00/ 5 0 k Hz di spla y Mixed dis pla y 1 minute ago Comparison of the same fish sce nario displayed a t dif fere nt frequencie s: 30 seconds ago Now 200 kHz display[...]

Northstar M121/M84 Installation and Operation Manual 39 9-4 Fish detection a nd display Where to find fish Under water features like r eefs, w reck s and rock y outcr ops attr ac t fish. Use the 50 kHz or 50/200 kHz f requenc y window to find thes e features, then look fo r fish by passing over the feature slowly several tim es using the Zoom windo[...]

Northstar M121/M84 Installation and Operation Manual 40 Fun sy mb ol + de pth Normal fish symbol Fun f ish s ym bo l Fish ar ch + dep th 23 9-5 Range Range is the ver tic al depth displayed on the Instrument so nar window. F or examp le, if the range is 1 00 m, then th e sonar window shows depths bet ween 0 and 100 m. Th e range is displayed at the[...]

Northstar M121/M84 Installation and Operation Manual 41 9-6 Ga in and th reshold Gain and threshold s et tings control the amount of detail displaye d on a sonar window : Gain : The gain of the s onar receiver . The gain should be high to display goo d detail, bu t if the gain is too high then information from the strong b ottom signal is lost and [...]

Northstar M121/M84 Installation and Operation Manual 42 T o sh ow the Sonar window, press DISPLAY , then select Son ar . There are five k inds of so nar window. T o use a window, press MENU , sele ct So na r s p li ts , then selec t the t y pe of window to use: No split : Sonar histor y win dow at a single or mixed fre quenc y (see se ction 10- 1 )[...]

Northstar M121/M84 Installation and Operation Manual 43 1 0- 2 Sona r Zoom and Full Screen Zoom displays A Divid er line B D epth line mark s the centre of the zoomed area C Zoo m b ar D Zoo m se c t io n E Sonar his tor y 10 -1 -1 E x t e n d e d h i s t o r y m o d e T o review an o ld sonar e cho, use and to move back and fo r ward through the s[...]

Northstar M121/M84 Installation and Operation Manual 44 1 0- 3 Sonar Bottom wi ndow The win dow shows the sonar his tor y on the right and the bot tom signal as a f lat trace in the centre of the zoom sec tion on the lef t. The f lat trace make it easy to c ompare the echo strengths show n in the bot tom signals. This can help to identif y the t yp[...]

Northstar M121/M84 Installation and Operation Manual 45 1 0- 5 Sonar A-Sc ope window The win dow shows the sonar his tor y on the lef t and the A-Scope window on the ri ght. The A- Scope shows: A, B, C, The s trengths of echo es being received now from dif ferent depths - the longer the horizon tal line the stronger the sign al: A Unwant ed noise e[...]

Northstar M121/M84 Installation and Operation Manual 46 11 G a u g e s w i n d o w The Gaug es window shows bo at data, such as water speed, as analo g gauges. T o selec t the Gauges window, press DISPLA Y , selec t More, then selec t Gauges . Before using the Gauges window, set Speed r ange, Max RPM and Max fuel f l ow (see sec tion 1 9 - 1 3). Se[...]

Northstar M121/M84 Installation and Operation Manual 47 1 3 Fuel functions and dis play The Fuel func tions require optional petrol /gasoline or Smar tCraf t fuel sensors to be inst alled and set up. Each engine has a f low sensor installed to measure the engine’s fuel f low. The M 1 2 1 /M84 use thes e f lows, together with boat sp eed an d engi[...]

Northstar M121/M84 Installation and Operation Manual 48 1 3- 3 When you add or re move fuel When you ad d or remove fuel, you mus t tell the M 1 2 1 /M84, other wise the fuel data will b e meaning less. A When you completely fill a tank Go to the fuel display and p ress MENU . The n: On a single -tank boat, se lec t Fill ta nk . On a multi -tank bo[...]

Northstar M121/M84 Installation and Operation Manual 49 T o s et a low fuel alarm fo r a tank : 1 Press MENU t wice , selec t Fue l , then selec t Setup ta nk s . 2 O n a multi-tank b oat, selec t the t ank to set the alarm for. 3 S elec t Ta n k a l a r m and enter a fuel level to trigger the low fuel alarm ; or enter zer o to disable the alar m. [...]

Northstar M121/M84 Installation and Operation Manual 50 Water spee d 1 0 knot s Current 4 knot s Gives a gro und spe ed o f 6 knot s Whe n the c urr ent is f rom a hea d, gr ound s pe ed is l ess t han w ater s pe ed For this example : If the bo at travels for one hour , uses 3 gallons of f uel per ho ur and has 50 gallons of fuel le f t: S pee d L[...]

Northstar M121/M84 Installation and Operation Manual 51 1 3-6 Fuel consumption cur ves A fuel consumption cur ve shows fuel consumption (fuel used p er unit of distance travelled) and b oat spee d as a func tion of engine RPM. Fuel consumption curves require engine RPM, which requires Smar t Craf t to be inst alled. Fuel consumption curves are powe[...]

Northstar M121/M84 Installation and Operation Manual 52 1 3-6- 2 Managing fuel consum ption curves Renaming a curve 1 Press MENU t wice , then selec t Fue l . 2 S elec t Fuel consu mption cur ve . Select Na me and selec t the name o f the cur ve to rename. 3 S elec t Rena me and press ENTER . Change the name. 1 3-6-3 Using fuel consumption cur ves [...]

Northstar M121/M84 Installation and Operation Manual 53 Calibrate petrol /gasoline fuel f low s ensors during installation, or i f the fuel readings se em inaccurate and the other troubleshooting suggestions do not help (see App endix B troubleshooting) . Note Smar t Craf t f uel sensor s are fac tor y calibr ated and should never ne ed recalib rat[...]

Northstar M121/M84 Installation and Operation Manual 54 1 4 Tides window The tide s window is available on Char t cards. The tide s window shows tide infor mation at a tide station for the s elec ted date. 1 Fr om the char t window, press MENU and select Fi nd . 2 Selec t Tid e st at io n s . 3 A list of tide s tations are displayed. Selec t the ti[...]

Northstar M121/M84 Installation and Operation Manual 55 1 5 User card window A user card is an optional plug-in card that can store data files (see se ction 1- 3). There are three t ypes of f iles: waypoints, routes or a track . T o go to the user card wind ow , press DISPLAY , select Mo re , then s elec t User card. Loading data from the use r car[...]

Northstar M121/M84 Installation and Operation Manual 56 T o loa d a file to the Instrument: 1 Selec t the file to load. 2 Press MENU and selec t Load . Deleting a f ile from the use r card 1 Selec t the file to delete. 2 Press MENU and selec t Del e t e . 3 Selec t Ye s to co nf ir m . Rereadi ng the file info rmation This reads the file names from[...]

Northstar M121/M84 Installation and Operation Manual 57 16 A I S AIS is shor t for Automatic Identification System. The International Conv ention for Safet y of Life At Sea (SOLA S) requires all vessels grea ter than 300 tons and all pass enger vessels to be equipp ed with AIS T r ansponders . All vessels equipp ed with AIS permanently broa dcast v[...]

Northstar M121/M84 Installation and Operation Manual 58 16-3 AIS W indows T o go to the AIS windows, press , sele ct Mo re , selec t AIS, then press or to selec t one of the t wo windows: Vessels or Safet y msgs (r x). If there are more items than will fit on the window, press or t o see the others . Vessels This is a sorted list of vessels current[...]

Northstar M121/M84 Installation and Operation Manual 59 Displaying Full AIS Details 1 Press or to selec t a vessel. 2 Press and selec t Mo re I nf o or press . This window displays all information for the selected AIS vessel provided by the AIS receiver. Sor ting Vessel s Press , selec t Sor t and s elec t one of the options. This sor t s the list [...]

Northstar M121/M84 Installation and Operation Manual 60 1 7 DSC/ Buddy trac k windows Buddy tr ack requires an optional Nor thstar DSC VHF ra dio to be installed. Bud dy track track s other boat s which have DSC radios connec ted to their GPS receivers by NavBus and are in VHF range. For information on set tin g up and using the VHF r adio for budd[...]

Northstar M121/M84 Installation and Operation Manual 61 Displaying a boa t on the char t 1 Press or to select a b oat. 2 Press MENU and selec t Dis play . The Instrument sw itches to chart window, with the selec ted bo at position in the middle (see Boat positions ab ove). Going to a boat 1 Press or to select a b oat. 2 Press MENU and selec t Got o[...]

Northstar M121/M84 Installation and Operation Manual 62 1 8 Radar Radar is the Radio D etection An d Ranging sys tem. Radar func tions require an optional Nor thst ar radar s ystem to be installe d. Three radar s ystems are available; 2 k W , 4 kW , o r 6 kW . When the r adar is operating, th e scanner transmits p ower ful microwave radio p ulses w[...]

Northstar M121/M84 Installation and Operation Manual 63 1 8- 2 Radar modes There are four radar m odes: • Disable d. This saves on power consumption and magnetron usage. If the ra dar is disable d, it has to warm up and enter stan dby mode b efore it can s tar t transmitting. • Warming. The r adar on and is warming up. This can take up to 90 se[...]

Northstar M121/M84 Installation and Operation Manual 64 these, you may need to relocate the radar. Consult the Installation Guide for your Nor thst ar radar or t alk to your dealer or installer . Multiple echo es of f the s ame objec t are most likely to occur when you are close to a large target and are usually only a temporar y nuisance. Y o u ca[...]

Northstar M121/M84 Installation and Operation Manual 65 • Range Rider . Adjust the sea clut ter set ting yours elf for a par ticular ra dar range, then have those se tt ings stored and automatically re- used when ever you oper ate a t that range again. 1 8-6-4 Chang ing the sea clut ter level If the sea clut ter level is set too low , a lot of s [...]

Northstar M121/M84 Installation and Operation Manual 66 1 8- 9 Using the VRM/EBL Use one, or both of the VRM /EBL ( Variable Range Markers /Elec tronic Bearing Lines) to quickly f ind the precise r ange and b earing of a targe t. A VRM can b e fixe d or f loating. Use the V RM to find the r ange (distance) to the target. • A fixe d VRM is shown a[...]

Northstar M121/M84 Installation and Operation Manual 67 8 T o clear the V RM/ EBL display , press E SC and repeat steps 1 and 2. Then s et Enable to . If you want to find the rang e and bearing of another target, repeat the se quence using the other VRM /EBL . This is shown in a dif fer ent pattern. 1 8- 9- 2 Finding ra nge and bea ring with a floa[...]

Northstar M121/M84 Installation and Operation Manual 68 1 8- 1 0 Changi ng the PP I position Y o u can move the PPI (Plan P osition Indicator) centr e to a dif ferent location if you are in Relative motion mod e. (If you are in T ru e motion mode, the ra dar automatically positions the PPI c entre .) T o chang e the PP I position: 1 Fr om the radar[...]

Northstar M121/M84 Installation and Operation Manual 69 1 8- 1 1 -4 Adj usting the boundarie s of a radar guard zone T o a djust the boun daries and change th e area that is cover ed by a radar guard zone : 1 Fr om the radar window, press MENU then selec t Guard Zone. 2 Selec t Zone then 1 (ra dar guard zone 1 ) or 2 (radar guard zone 2). 3 Selec t[...]

Northstar M121/M84 Installation and Operation Manual 70 1 9 Sett ing up t he M 1 2 1 / M 84 The M 1 2 1 /M84 has a nu mber of advanc ed features which ar e set up through the setup menu. We recommend that you become familiar with the o peration of the uni t using the default s et tings before mak ing any changes in these menus. T o go to a setup op[...]

Northstar M121/M84 Installation and Operation Manual 71 Factor y reset This option returns all of the Inst rument set tings (except the language, waypoints and routes) to the def ault fac tor y set tings shown on the s etup menus. About The ab out window shows: • T he sof tware version and date. • T he worl d char t version. • Any card fit te[...]

Northstar M121/M84 Installation and Operation Manual 72 Press MENU twice, then selec t Char t: 1 9 - 2 Se tup > Char t Rotation The options for char t rotation are: Nort h up : Nor th is always at the top of the char t window. Trac k u p : T he char t is rotated so that the boat direc tion is to the top of the window. This option is useful fo r [...]

Northstar M121/M84 Installation and Operation Manual 73 Map datu m Instrument GPS positions are based on a worldwide reference (datum) know n as WGS 84. M ost pap er char ts are base d on WGS 84. H owever , s ome pap er char ts are bas ed on other datums In these cases, the latitude and longitude coo rdinat es of objec t s on the Instrument char t [...]

Northstar M121/M84 Installation and Operation Manual 74 General submenu Plotter mode Only scales available on the chart card can be displayed. If you press or to select a chart scale which is not available, on the chart card, the chart wi n- dow will change to this scale but will only display the boat position and track (if enabled). The rest of th[...]

Northstar M121/M84 Installation and Operation Manual 75 Press MENU twice, then select Sonar : Frequency There is a choice of: 200 kHz , 50 kHz and Mixed . For information about selecting a suitable frequency for the water conditions, see section 9 -3. Scroll speed Use this to set the scroll speed on the display. There is a choice of: Very Fast , Fa[...]

Northstar M121/M84 Installation and Operation Manual 76 Noise fi lter Av erages the e cho signal to r emove rapid changes. S elec t Me dium or High to give a smoother b ottom trace– this may help to det ec t a deep er bot tom; however these set tin gs may also remove fish echoes . Sele ct O f f for b est fis hfi ndi ng. Sur face clutter filter Us[...]

Northstar M121/M84 Installation and Operation Manual 77 There are four choices: • Of f . Int erference rejec tion is of f. • Low operates the interference rejec tion at minimum strength . • Medium op erates the interference rejec tion at mediu m strength. • High oper ates the in terference rejec tion at maximum s trength. T his set ting can[...]

Northstar M121/M84 Installation and Operation Manual 78 Head ing li ne The h eading line is a white line that ex tends from your boat to the edge o f the radar window. Show the heading lin e. Hide the heading line. 1 9 -4- 1 Se tup > Radar > Installa tion Note: This option is shown only when th e radar is enabled (see Se ction 1 8-3) 1 Press [...]

Northstar M121/M84 Installation and Operation Manual 79 1 9 - 5 Setup > GPS Press MENU twice, then selec t GPS : GPS Source • NMEA : U se the ex ternal GPS antenna supplied or an e x ternal GPS or DGPS source connec ted via NMEA (see s ec tion 20 - 1 1). • NavBus : Use an e x ternal GPS or DGPS source connected v ia NavBus ( see se c tion 20[...]

Northstar M121/M84 Installation and Operation Manual 80 1 9 -6 Se tup > Fuel Fuel functions require op tional fuel flow sensors to be installed . Press MENU t wice, then selec t Fue l : ! WA R N I N G Fuel cons umption can change dras tically depending up on the bo at loading and the sea conditions. Always carr y ad equate fuel for the journey, [...]

Northstar M121/M84 Installation and Operation Manual 81 Fuel consumption curve See se ction 1 3-6 . Speed source If both water spe ed and ground sp eed are available, selec t which to use for fuel calculations ( see sec tion 1 0 -5- 1 ). Max fuel flow The maximum fuel flow from a fuel tank to be displayed on an analog fuel flow gauge (see section 8[...]

Northstar M121/M84 Installation and Operation Manual 82 Plo t ti ng In te r va l Selec t the pl otting an d recording int er val. Th e options are Dista nc e or Ti me . Dist anc e Selec t the dist ance plottin g interval : 0.0 1 , 0.05, 0. 1 , 0.5, 1 .0, 2.0, 5.0 or 10.0 distance units . Time Selec t the time p lot ting interval : 1 , 5, 1 0 or 30 [...]

Northstar M121/M84 Installation and Operation Manual 83 1 9 -9 Setup > Logs Press MENU twice, then selec t Logs : The v alues can be res et indepen dently of each other . These lo g values are saved when the uni t is tur ne d of f. Reset tri p dist This resets the tr ip distance to zer o. Reset total d ist This option resets the total distan ce [...]

Northstar M121/M84 Installation and Operation Manual 84 Press MENU twice, then selec t Al arms : 1 9 - 1 0 Setup > Alarms For all alarms selec t to turn the alarm on or select to turn the alarm of f . For most alarms there is a trigger value. The alar m will sound each time the alarm valu e equals the trigger value . For example, the Da nger ala[...]

Northstar M121/M84 Installation and Operation Manual 85 Use this fea ture when the Instrument is connec ted to other Nor thst ar instrument s through NavBus or any c ompatible NMEA instr ument. Press MENU twice, then selec t Com m s : Press MENU twice, then selec t Uni ts : The d efault unit s are shown above. Dist anc e nm (nautical miles), mi (mi[...]

Northstar M121/M84 Installation and Operation Manual 86 1 9 - 1 3 Se tup > Calibra te Press MENU twice, then select Calibrate : Speed This calibrates the speed from a paddlewheel sensor connected to the Instrument. Calibration may be required because different hull shapes have different flow characteristics. Obtain an accurate measurement of the[...]

Northstar M121/M84 Installation and Operation Manual 87 Press MENU twice, then selec t Ti m e : Loca l of f set The di f ference bet ween local tim e and UTC (GMT ). Change lo cal of f set when daylight saving time s tar ts an d ends. T he range is 0 to ± 1 3 hours, in 30 minute steps. Temperature filter Water turbulence and currents cause the wat[...]

Northstar M121/M84 Installation and Operation Manual 88 Simulate mode is a way of be coming familiar with the Instrument (see se ction 2- 6). Press MENU twice, then selec t Si m u l at e : Simulate T urn simulate mode of f T urn sim ula te mode on 1 9 - 1 5 Se tup > Favorites See se c tion 2- 7- 2. 1 9 - 1 6 Setup > Simulate The options requi[...]

Northstar M121/M84 Installation and Operation Manual 89 20 Inst alla tion ! W ARNING Ensur e that any holes cut are in a safe position and will not weaken the boat ’s struc ture. If in doubt, consult a qualifie d boat builde r . CAUTION Do not mount any par t where it can b e used as a hand ho ld, where it might be submerged or where it will inte[...]

Northstar M121/M84 Installation and Operation Manual 90 20- 1 Installation: What e lse comes with my M 1 2 1 /M84? Northstar GPS 124 Antenna GPS 124 Antenna bottom cone GPS 124 Antenna gasket GPS 124 mounting kit Sun cover f or display unit Note: Place over display when not in use Fr ont Bezel Note: Fit this after installing the display unit Po wer[...]

Northstar M121/M84 Installation and Operation Manual 91 • Replacement p addle wheel. • C -MAP™ N T -MA X, NT + or NT char t SD cards. • Nor thst ar NavBus junction b oxes simplif y wiring, par ticular ly if sever al instrument s are connec ted. For more infor mation, see the NavBus Installa tion Manu al . Optional se nsors a nd instrument s[...]

Northstar M121/M84 Installation and Operation Manual 92 20- 3 Inst allation: The d isplay unit Start by s elec ting a suitable mo unting position for the M 1 2 1 /M84 display unit : • Consider the best p ossible position for viewing and o perating the M 1 2 1 /M8 4. This will generall y be a relatively shad ed area free fro m o bstr uctio ns . ?[...]

Northstar M121/M84 Installation and Operation Manual 93 There are t wo mounting arran gements: Flush Mounting the M 1 2 1 /M84 1 . Attach th e f lush mounting template t o the selec ted moun ting position u sing ad hesive tape. 2. D rill a pilot hole for each of the ho le saw cuts show n on the template before cutt ing the larger hole with the ho l[...]

Northstar M121/M84 Installation and Operation Manual 94 Black Auto power When wired for Auto Power On the unit will turn on when the ignition s witch is on, if you would like the unit to turn of f when the igni tion switch is of f then set the uni t for Auto P ower Of f (see s ec tion 2- 2 and 1 7 - 1 ) 2 Wire any ex ternal alarm be epers or lights[...]

Northstar M121/M84 Installation and Operation Manual 95 20- 5 Installation: GPS antenna Selectin g an an tenn a Fit one of these GPS antennas: • Normally use th e GPS antenna s upplied. • An optional dif ferential beacon DGPS antenna t o give enhanced accurac y within range of land b ased dif fer ential beacon s in areas where W A AS or EGN OS [...]

Northstar M121/M84 Installation and Operation Manual 96 2 0- 7 Inst allation: N orthstar petrol/ gasoline sensors Fit t he o pti ona l p etro l/gas ol ine fu el k i t following the instructions supplied with the kit. Not e: Smar tCra f t engines have fu el f low senso rs, therefore Nor thstar f uel sensor s are not required as well. For dual engine[...]

Northstar M121/M84 Installation and Operation Manual 97 2 0-8 Ins tall ation : Sm artCr aft If the bo at has one or t wo Smar tCraf t capable Mercur y petrol /gasoline engines, connec t the Instrument to the Smar tCr af t engines with an optional Smar tCr af t gateway . The display unit can display engine data and tr im and can control troll speed.[...]

Northstar M121/M84 Installation and Operation Manual 98 20- 1 1 - 1 Installation: Nor thstar VHF radio Fit and set up the optional No r thstar V HF radio (with NavBus fun ctionali t y) following the instruc tions supplied with the radio. Black Pow er/data cable Orange Blue Blue Grey Radio data cable NavBus is Nor thstar ’s sys tem for connec ting[...]

Northstar M121/M84 Installation and Operation Manual 99 20- 1 1 Installation: Other NMEA i nstruments NMEA is an indus tr y st andard for inter connectin g instrument s. It is not as f lex ible or as easy to install as NavBus. The Ins trument can: Receive and display wind sp ee d and direc tion from an optional compatible wind instr ument. Receive [...]

Northstar M121/M84 Installation and Operation Manual 100 Appendix A - Speci ficat ions GENERAL M121 S i z e : 256 mm ( 10.08 “ ) H x 385 mm ( 1 5. 1 6“) W x 78.5 mm (3.09 “ ) D. Allow 3 mm clearan ce on each side for dus t cover . M84 Size : 1 9 0 mm (7 .48 “ ) H x 285 mm ( 1 1 .22“ ) W x 76.8 mm (3.02“) D. Allow 3 mm clear ance on each[...]

Northstar M121/M84 Installation and Operation Manual 101 Northstar M121 Physical Dimensions Northstar M84 M121 M84[...]

Northstar M121/M84 Installation and Operation Manual 102 List of datums Adindan Afgooy e AIN EL ABD 1970 American Samoa 1962 Anna 1 Astro 1965 Antigua Island Astro 1943 ARC 1950 ARC 1960 Ascension Island 1958 Astro Beacon ‘E’ 1945 A stro DOS 71/4 Astro Station 1952 Astro T ern Island (F rig) 1961 Australian Geodetic 1966 Australian Geodetic 198[...]

Northstar M121/M84 Installation and Operation Manual 103 1-1 The Instrument won’t turn on: a The Instrum ent is designed to operate on a 1 2/24 volt batter y sy stem, where the voltage may var y f rom 1 0 .5 to 3 2 volts. If an excessive voltage is supplied, a fus e will be tripp ed, turning the display unit o f f. Check the fuse. b Check that th[...]

Northstar M121/M84 Installation and Operation Manual 104 B- 2 GPS navigation p roblems 2-1 No GPS fix or long time to get fix at startup: a May occur occasionally if the ant enna does not have a clear view of the sk y. The satellite positions are constantly changing. b Antenna cable not connec ted to display unit. 2-2 Instrument GPS position differ[...]

Northstar M121/M84 Installation and Operation Manual 105 3-2 Flow indicates no fuel or low fuel: a Check that the number of en gines is set to 1 (see sec tion 1 9 - 6). b Check that the f uel cable conne c tors are securely plugge d in and the collar is locked in place. The collar must be lo cked in place to give a watertight connec tion. c A fuel [...]

Northstar M121/M84 Installation and Operation Manual 106 i Elec trical noise f rom the boat ’ s engine or an accessory may b e interfering with th e transducer(s ) and/or the Instrument. T his may cause the Instr ument to aut omatically decrease the Gain unless using Manual Gain. The In str u me n t thus eliminates weaker signals such as fish or [...]

Northstar M121/M84 Installation and Operation Manual 107 B- 5 Radar problems 5-1 Radar overlay doesn’t appear on the chart screen a Ens ure that your boat is shown on the radar window. If it is, but the ra dar overlay still isn’t shown, try zo oming in on the char ted area. ( The char ted area may be outside th e maximu m range of the radar ). [...]

Northstar M121/M84 Installation and Operation Manual 108 Appendix C Glossa r y and navigat ion data Air te mp - Air temperature (requires Nor thst ar 72 1 V HF radio). Alarm status - Shows the s ymbol (se e sec tion 1 9 - 1 0 ) for each alarm that is on. The s ymb ol is normally black an d turns red if the alarm triggers. Att ent io n Are a - An im[...]

Northstar M121/M84 Installation and Operation Manual 109 SmartCraf t - A feature of Mercury Mar ine engines f or monit oring e ngine performance . TCPA - Time to Closest Point of Approach. Tim e until the closest po int of approach for t wo vessels . Sea c lut te r - Rough seas can c ause interference with the radar image. Sonar status - A s ummar [...]

Northstar M121/M84 Installation and Operation Manual 110 Navigation d ata BRG Bearing to Destination: Bearing t o the destination from the boat. BRG Bearing to cursor: Bearing to cursor from boat (cursor mode, see section 3-2-1) CDI Course Deviation Indicator : When the boat is na vigating to a point, the chart and highway window s show a parallel [...]

Northstar M121/M84 Installation and Operation Manual 111 FCC Sta tement Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a normal installation. This equipment generate[...]

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