NX2 Race Software
Contents
1. EINARILL slo ZP SR ye amp GIN P em Ready OO This function will only work if you have a NX2 GPS Navigator connected since all waypoints and routes are stored in that instrument 4 8 4 Waypoint The waypoints showed in the top box are stored in the GPS Navigator When you edit them you are working direct in the memory of the GPS Navigator Also the Sail Plan and Routes are stored direct in the GPS Navigator memory The big advantage with this is that you only work with one waypoint memory and there are no confusions of which waypoints you are working with Another benefit is that once you have entered a Sail Plan you may switch of your PC and the NX2 system will carry on with the navigation When you switch on the PC again the remaining part of the Sail Plan will pop up in the navigation window This is what we call NIN Non Interrupted Navigation and enable you to switch of your PC once you have created a Sail Plan and save power 4 8 5 Import waypoints from a NMEA Navigation SW Most NMEA navigation Software s are able to export waypoints and routes If the NMEA Navigation SW sends out waypoints according to the NMEA standard in a WPL sentence the NX2 Race SW will read them and list them as NMEA waypoints Note that these waypoints are only stored in the PC NX2 Race Software NA E English NX2 Sail Performance PE RR b Ready Navigation E EE A14 xl Available waypoints o D No Name Lat2. Leeway is estimated form a formula The higher the index value is the more leeway is added to the calculations The index number you should use depends on hull shape rudder and keel shape The Leeway index to be used has to be detected empiric For more information see 6 2 Dampening of ground wind Set the dampening for output data of Ground Wind Ground wind is a function calculated in the NX2 Sail Performance and is the Geographical True Wind Direction compensated for Leeway and Tides To display Ground Wind see Custom Angular Data sent to Nexus 1 34 NX2 Race Software NA E English Custom Angular Data sent to Nexus NX2 Multi Control and Multi XL instruments are able to display Custom Angular Data In the NX2 Sail Race SW you may select if that data should be Ground Wind ore the Leeway in degrees Set up the Multi Control and Multi XL to display CAD To access sub function CAD select NAVIGATE page and the empty sub function Then press PAGE and SET together followed by PLUS and MINUS together Do not show Nexus messages 1 35 English MND NX2 Race Software 6 Automatic Calibration 6 1 The NX2 Race SW calibration process There are 3 basic transducer calibrations that must be done before the instruments can provide you with accurate data and they are The Compass auto deviation procedure The water speed calibration procedure The water speed advanced calibration for port and starboard procedure Calibrate whe
3. amp RME Min navigation data 13 HDT Heading course ftue E MWD Wind direction amp veloc 14 RMC Min specific GPS TRE 7 RME Min navigation data 15 XTE Cross track emor gt B VDR Set amp dit m 16 zZDATime amp date x OK Avbryt Verkstall 1 33 English NA E NX2 Race Software 5 5 3 Advanced 21 MX Server Configuration NMEA Advanced Automatic polar steering Deactivate if TWA under gn Automatic tack compensation Activate if AWA is under 20 Deachvate IF AMA Is over 40 Activate if TWA is over 110 Damping for computed TBS Input data Twi Ar TWS g2 Damping of ground wind d2 Output data TBS do Estimated leeway index 4 Custom Angular Data sent to Hesus GWDGround Wind Direction O Da not show Nexus messages Avbryt Verkstall Automatic tack compensation Here you set the window within which angles the automatic tack compensation should be used In the example the Tack compensation will be used when the Apparent wind angle is between 30 and 40 For more information about Tack Compensation see 6 4 Automatic Polar steering Here you set the window within which angles the automatic Polar steering should be used For more information about Automatic Polar Steering see 6 6 and 0 Dampening for computed TBS Set the dampening for input data of TWA TWS Set the dampening for output data of TBS Estimated leeway index The
4. extrapolates the data to give continuous TBS and steering course To achieve that the file must contain a minimum of 5 column pairs of TBS TWA but no more than 20 and a minimum of 3 data lines but no more than 20 So including the column with wind speeds the polar table should have a total of minimum 11 columns but not more than 41 The format of a polar table is lt 1st row for table headings no data here lt 2ns row for a wind speed of WS1 kts lt mth row for a wind speed of WSm kts e last column pair is best case down wind other column pairs TBS TWA first column pair is best case up wind 1st column contains wind speeds in kts In the above representation WS1 WSm are m true wind speed values in kts BS11 BSmn are m x n target boat speed values in kts and WA11 WAmn are m x n true wind angle values in degrees where 3 lt m lt 20 and 5 lt Nn lt 20 Wind angles must have the same value on a given column excepting the first and the last wind angle columns which are a special optimum case There must be no empty rows in the file except for one row at the beginning the heading row which is ignored and therefore put no values in there All values must be separated with either tabs or commas not spaces and all rows must contain the same number of values i e if row2 has 13 values all other rows should have the same number of values English NA E NX2 Race Software 5 5
5. in 1 10 of a degree Auto deviation This function is used to auto deviate your Compass Take the boat into a turn in calm sea when steady press start When you have taken the boat through the minimum 360 turn press Stop If you want to pause if waves comes up during deviation press Pause and continue again when the waves have disappeared Check the Auto deviation This function is used to check your Auto deviation Make a new Auto deviation in calm sea during the evening as described in above Clear the Auto deviation If you by any reason prefer to reset the deviation created by the Auto deviation function press Clear Magnetic variation VAR Set the deviation direction first i e for East or for West then enter the magnetic value in 1 10 of a degree 1 23 English MND NX2 Race Software Adjust the Compass alignment This function is used when the Compass is giving a constant course error i e it is not mounted exactly aligned as the boat there is no need to mount the transducer at the boats centreline Make sure that the local magnetic variation is entered before you make the alignment adjustment Otherwise you are unable to see the difference between local magnetic variation and alignment error The Compass may be installed reversed 180 but never at perpendicular or 90 relative the centreline 5 2 4 Wind calibration Calibration E A File Monitor Navigate Toole Help Log Depth Com
6. sn n en eon laid 21 5 2 1 BefeKerzille 211 a pemereemeermes enter nee emer petra reer M 21 5 2 2 Depth Gall PeO pem re 22 5 2 3 Compass calibrato Mss acari 23 5 2 4 Windcalbia HON asia lilla e 24 5 2 5 Automate Calibration atalanta 25 SPEC UE 26 5 3 1 ENE E E E E E NNE E E E E ETEN 26 9 9 2 SGre eros ee 27 9 9 9 BRUT EE m 21 5 3 4 Reset Trip GOUNIGr l aerea 30 5 3 5 N OVEN BO ANG isa HO 30 5 3 6 Reinitialize Nexus Ne twork ccccccseccecesececeeeceeceeceseeeeeeseeeeeseeeeeeas 30 Sd Porpora 31 SA DeL E ii 32 5 5 1 NX2 Server settings nennen nnns 32 5 5 2 Wc 33 5 5 3 Yell eco M RED E 34 6 Automatic Calibration uio tc oni tes Uo E rera e enisi eei ru 36 6 1 The NX2 Race SW calibration processi terrene 36 6 2 The 3 step calibration DI OG6SS 2 lalla ls 36 NX2 Race Software NA E English 6 3 Correction of the wind speed down WiNd i 38 04 ne TRUE Hoces S nee eeesne E 38 6 5 Wind Sheer rer rar rr rrr rn renar ror RA KRK RK R SRK R KRKA RR R KR RDR SKAR R RAKA KORK 0 40 6 6 Polar and Target Boat Speed a a a 41 6 7 Sleer Pilotand Polar Calas mds sees ett ee cares ome oerte reti died 41 English NA ZI NX2 Race Software 1 Introduction The NX2 Race SW is a PC Software developed for Windows XP and 2000 It will have limited functionality on other operating systems like Windows 95 and 9
7. 8 The NX2 Race SW will enable to communicate at network speed with your NX2 instrument system That will give you the possibility to monitor all data at network speed log all data to a file for post race analyze Set up the system and calibrate it The NX2 Race Software will only work together with a FDX Server A FDX Server has the following label on the cover The Nx2 Race software supplied on this CD is a fully functional version However you need to register at www silva se in order to use the Software without limitations Up dated versions of NX2 Race SW is always available for download at www silva se Even if you do not have a NX2 FDX Server you are able to test and evaluate this NX2 Race Software A logged file from a Race in Sweden is supplied on this CD and the NX2 Race SW will automatically start to display data from that file However you are not able to calibrate data and make changes to settings etc without a Server NMEA The NX2 Race SW is utilizing the FDX protocol between the Server and the PC In order to be able to run your favourite Navigation Software simultaneously the NX2 Race SW creates a virtual port within the PC which sends and receives NMEA data from that The virtual port may have different number on different PC s depending on the configuration When playing back a logged file the information is also send out on this virtual port enabling you to monitor your race on a cart in your Navigation Software N
8. MNI E performance by NEXUS NETWORK NX2 Race Software Instruction manual English NX2 Race Software English 1 1 English NA E NX2 Race Software 1 Introduction 4 2 installation elia 7 3 Installation of the NX2 Race Software rr 7 3 1 1 Coda ata 7 3 122 INStallinG the Software eta 7 3 1 3 PR ONS eM ace E 7 3 1 4 Use the NX2 Race SW with a FDX SCIVCl ssmmssrssessessrrreesseesrnnennrerrnrrnnnnrn 8 3 1 5 Connect to a pre recorded FDX binary file 8 4 Use the NX2 Hace SW x iocis lied 9 4 1 Howto use the NX2 Race SW 9 4 1 1 MueinieaeMecRe tcc E 9 4 2 Setup your own monitor layout nnne 10 4 3 Set up the Monitor displays i 11 4 4 Display Polar Diagram e 13 4 5 Sveglia dea 14 4 6 WO AGTA NAY OM eue ceo deo de eee eta bete ode a r 14 4 6 1 SSIUD ODIOFIS ssaa leone 15 4 7 Change ConmnectgN eor a aniden RR AEM 16 4 8 Enable secondary connection ie 17 4 8 1 Allow NMEA Navigation Data input ccccseeeeesseeeeeeeeeeeseeeeessaeeeeens 17 4 8 2 AUTOCONMEGT AL SIAM Dh eet 17 4 8 3 Navigation ese p 18 4 8 4 VV OVDOIDIl endete cuc ede xi bue e i MEL E co 18 4 8 5 Import waypoints from a NMEA Navigation SW 18 5 lo0SanGi OLTRE 21 S MEME Cabassi 21 o INVA CAN alils sis
9. Man Over Board Here you may start the Man Over Board function The command is broadcasted to all instruments on the Network and all instruments start the Man Over Board function simultaneously You May Also click the Man Over Board button on the control bar UN x 40 X 0 5 77 by By Q9 Ww File Monitor Navigate Man Over Board MOB alarm 5 3 6 Reinitialize Nexus Network This function will reinitialize the whole network and all instruments connected to it A message Press Key will appear on all instruments and the order you press the keys is the order the Instruments will get their unique ID numbers 1 30 NX2 Race Software NA E English 5 4 Polar table The NX2 system together with the NX2 Race SW is able to calculate target Boat Speed from a Polar Table The polar tables looks different for different boats The polar table is a tab or comma separated values text file containing target boat speeds for specific true wind angles and speeds Every row represents data for a specific true wind speed except first row Which contains the headings of the table and is ignored First column contains true wind speeds in knots then the following columns are pairs of target boat speeds for a specific true wind angle The first and last pair of TBS TWA columns are the best case up wind and down wind respectively and these columns are used to compute optimum course up or down wind respectively NX2 Race SW interpolates and
10. Settings 5 5 1 NX2 Server settings Here you set up the Server configuration le Monitor Navigate Tools Help PEG Ei NX2 Server Configuration NMEA Advanced Use NMEA boat speed Damping on COG and SOG C Use NMEA depth SOI CN ail o Use NMEA compass Use SOG f r true wind and WMG _ C Use NMEA wind Enable tide wind compensation _ Use Hibs barometric pressure Use NMEA navigation CI Allow WPL waypoint location in Send WPL waypoint location Avbryt Verkst ll Use NMEA Boat Speed If you want to use a NMEA transducer connected to the NMEA input you have to tick this box The Server will then transmit this information on the Nexus Network to all connected instruments After you have changed this setting you have to restart the system Use NMEA Depth If you want to use a NMEA transducer connected to the NMEA input you have to tick this box The Server will then transmit this information on the Nexus Network to all connected instruments After you have changed this setting you have to restart the system Use NMEA Compass If you want to use a NMEA transducer connected to the NMEA input you have to tick this box The Server will then transmit this information on the Nexus Network to all connected instruments After you have changed this setting you have to restart the system Use NMEA Wind If you want to use a NMEA transducer connected to the NMEA input you have to tick th
11. X2 Race Software NA E English Welcome aboard the Nexus Network Through this manual we would like to help you install operate and understand your new NX2 Race SW The Server is the heart of your Nexus Network to which transducers for speed depth heading wind and navigation GPS are connected From the Server the single Nexus Network cable transmits power and data to the instruments which repeat the information sent from the Server or other NX2 transducers The Nexus Network is designed with the industry standard RS 485 data bus which allows you to connect up to 32 Nexus instrument units on the single Nexus Network cable thereby allowing you the flexibility to easily develop your system The Nexus Network is capable of carrying data 10 times faster than NMEA 0183 The connection system with a single 5 mm 1 5 cable and 4 pole jack plugs with cable protectors makes the installation easy No need to drill big holes and the cable can be cut to exact lengths The connections at the Server are colour coded and marked with a number for easy reference NX2 Multi Control is a multi function instrument that displays a main and a sub function together You can easily customise your favourite combination of functions by using the unique method to move copy and lock a sub function The instruments large display gives you very good viewing possibilities from any angle even in bright sunlight The display and the five push buttons ha
12. ate Li Control a Settings H Save Layout Load Layout ei Options Save Layout 2 x Click on the first empty layout or on any other if you want to overwrite an existing layout Up to five personal layouts may be stored 4 6 Load a layout If you want to load an existing layout click on Tools and then on Load Layout Select the layout you want to load and press load NEN Fle Monto Navigate Took Help Load Layout x NX2 Race Software NA E English 4 6 1 Setup options Under tools and options you may set up the Software ii e File Monitor Navigate Tools Help Autoconnect NOTE Uses Load layout the last configuration made in ood i Communication dialog box Layout d C Record automatically to file MOTE will ask for filename at every startup CJ Auto hide after 2 seconds Keep always on top OF Cancel Autoconnect If the Autoconnect tick box is ticked the NX2 Race SW will automatically connect to the port or file it was connected to last time it was run Record automatically to file If this box is ticked the NX2 Race SW will automatically start to log data in to a file Note when you start the NX2 Race SW you must enter a new file name Auto hide If the Auto hide is ticked the top bar will be hidden after the number of seconds selected in the box to the right Note it is only the top bar that will be hidden the monitors will still b
13. d These waypoints will appear in the waypoint editor as NMEA waypoints Mark all 7 waypoints and right click or click the editor icon Give the first waypoint the number you want to start with English NA E NX2 Race Software In this example we mark the 7 waypoints and give the first no 301 4 3 amp 4 VM FU Navigation a Available waypoints No Name Latitude Longitude Used HX 1 ORIGIN 059933 070 N 018949 511 E NX399 MOB POS 059 31 183 N 019 56 199 E UMNMEA 01 059 31 697 N 018950 255 E EN NMEA 02 059932 336 N 018955 581 E EN NMEA 03 059932 381 N 019901 773 E EN NMEA 04 059930 994 N 019 04 459 E UMNMEA 05 059928 769 N 019905 631 E UMNMEA 06 059926 760 N 019903 771 E 07 059 24 268 N 019905 247 E p ai Name for Latitude 59 31697 n z f Longitude 15 50 255 le ora Ready Display position as DDR mmrm DD MM SS s Then press OK The NMEA Waypoint 1 7 will now become NX2 Waypoint 301 307 If you want to create this route in the NX2 GPS Navigator mark all 7 waypoints drag and drop them into the Sailplan PUN SE bw Post 4 Dir z775 2 Qe 315 23 3 15944 oe W 2305 a D 2220 sm 6 06 25600 OF Eas ow Ma Ma 1 20 NX2 Race Software NA E English This Sailplan is now active in your GPS Navigator and you may switch off the PC and carry on
14. e NX2 Race SW integrates polar data with the NX2 instrument system The enclosed polar data table is for an X332 boat but you may create your own data from IMS to be used in the NX2 Race SW If you have data for your boat please send it to Silva support and it will be available for other users How to activate Activate the Polar by pressing the Polar symbol First time you are asked to load the polar table file Enclosed is the X332 nxp Polar but you may create your own The TBS Target Boat Speed is sent to the Multi Control and Multi XL instrument see manual Create your own IMS specific Polar Data and place in the Polar File Read the readme txt file under NX2 Race folder Use a text editor like Notepad To open your new Polar data go to Tools Control Load Polar table select your polar data file 6 7 Steer Pilot and Polar data This unique function can be used both up wind and down wind but the best use and efficiency is mainly when sailing down wind This is how it works The true wind speed and true wind angle are calculated and updated 3 times s This data are then used to calculate TBS Target Boat Speed and POC Predicted Optimum Course from the polar data The POC Compass heading to steer relative the x M a 8 01 kts 953 1 41 English NA E NX2 Race Software actual TWA is sent to the Steer Pilot as a new steer reference 3 times s This means when you are sailing down wind your course to
15. e displayed To get back the top bar move the mouse cursor at the top of the screen Keep always on top If this box is ticked The NX2 Race SW will always be on top of other applications on the screen This is very useful if you want to run the NX2 Race SW together with a Navigation Software You may have the chart and the Monitors shown at the same time To hide NX2 Race SW you simply click the minimize button at the top right corner English MND NX2 Race Software 4 7 Change connection If you want to change connection either use another communication port or change between a port and a logged file press file and Close connection Click yes to proceed E NX2 Sal Performance 4 By er Ww Montor Navigate Took Heb PD NI Dao Connects to data source Dad Close Ci onnechian Then click File and Open Source E NX Sal Performance F amp B De o 77 Er Iw F Navigate Tools Help Connects to data source m n Chl Now you can select if you want to connect to a COM port select which or to a pre recorded FDX binary data file Bi Sail Performance Eel ELE Ready Communication i pPrimary connection NX2 FDX server on COM port NX2 Race Software NA E English 4 8 Enable secondary connection Tick the box Enable secondary connection and select on which port you want to write and read NMEA data This port is a virtual port within the PC and is no Hardware por
16. ed wind speed the difference between air speed and boat speed will increase and also the over reading 2 The magnitude of the over reading is higher on a mast head rig relative to a fractional rig This over reading can mean a reduction of up to 1596 of measured wind speed 3 When the 1m Twin Fin Racing transducer is used the over reading effect is mainly eliminated 2701 2700 30 90 2254 225 139 135 180 182 Use upwash correction Starboard O Installation offset and 0 wind shear Port OB Avbryt Verkst ll This over reading compensation is also gradually reduced relative the actual AWA When you have a 90 degree AWA the WS reduction is 096 and at 180 degree AWA the WS correction is 10096 of the maximum compensation As an example if 1596 was set the WS correction at 135 degree AWA would be 7 5 The magnitude of the WS correction must be individually corrected for the boat rig and sail settings depending on the above conditions The NX2 Server must be turned off and on again to activate the new correction value 6 4 The TRUE process T R U E is short for Temporary Reference Update Estimation When the 3 step calibration is done the T R U E up wind sailing procedure can be made to correct wind angles and measure wind shear The Temporary Reference Update will include errors created by the heel angle mast twist and change in up wash due to either stronger winds or when re calibrating f
17. eed The basic water speed calibration will later be used to determine the port and starboard calibration in step 3 Avoid this calibration if you are in a me particularly strong tide 1 36 NX2 Race Software NA E English WATER SPEED Advanced x Do not run the advanced Port Calibration stages Automatic transitions This auto calibration procedure will A MdL CTS PER rct am E eae 555556 calibration before you have DM MS P eee completed step 1 and 2 Pres iiec T minutes Prepare for the up wind sailing eil Use the Auto measurement ir cat arri default with the proposed sail RCM lilla uis time of 1 minute settable or use 2 minutes the manual option where you advance to next step manually lt F reg ende Avbryt Sail up wind on the first tack starboard or port when boat speed and sail trim is ok Press Next in the Auto calibration dialogue box When the starboard or port tack is done make the tack and trim to speed The NX2 Race will automatically detect your tack and then wait 1 minute pre set time before it starts to measure When the second leg is done turn the boat for a down wind sailing without spinnaker The measurement for down wind will start when the AWA has reached 180 degree at one occasion the trigger condition Try then to sail safely with the wind as flat 180 degree wind as possible When measurements are done 1 minute NX2 Race will show you the result
18. eference and the value for the Speed trim instrument to refer This is to set the reference to trim the speed trim instrument click the trim icon on the control bar Hot Gail EISE S Remote control All digital instruments connected to the Nexus Network may be remotely controlled from the NX2 Race SW 1 27 English NA E NX2 Race Software To add instruments in the list click Add Then enter the ID number for that instrument displayed at each power up of the system and give it any name you want Instrument Alias i i TL alla i 16 Spa d PA ik ess i You may enter all instruments on the Network or only those you would like to be able to remote control Then click OK 1 28 NX2 Race Software NA E English Remote Control Di m li n LE m Ci Instruments Then click on the instrument that you want to control and use the corresponding push buttons 1 29 English NA ZI NX2 Race Software 5 3 4 Reset Trip Counter Here you may reset the trip distance The command is broadcasted to all instruments on the Network and all instruments Trip distance will be cleared simultaneously Eile Monitor Navigate Tools Help Calibrate ECC o ail Settings a Steering Pilot ty Trim ll Save Layout Remote l Load Layout e T dii Reset tip counter Gi Options AE Man Over Board MOB 3 Reinitialize Nexus network Er Load polar table 5 3 5
19. he instrument says At open sea where wind direction is stabilized the waves will follow the wind direction that occurs at the surface Since this wind speed is reduced by the friction it will therefore point towards the low pressure This means that you will hit the waves slightly harder on starboard then port side on the North hemisphere This is also a reason for adding more twist and power on starboard tack 1 40 NX2 Race Software NA E English Use the T R U E process in the NX2 Race software to calibrate the wind angle difference between port and starboard tack This represents the actual wind shear as an offset angle relative to the sail pressure centre Note The wind shear angle will include a possible mechanical installation offset on the Twin Fin transducer This offset can be noted by running the boat at a time when there is no wind This offset is added in the wind calibration dialogue box see the manual By using the knowledge of wind shear when trimming the sail asymmetrically you will be able to use the force in the wind more efficiently on port and starboard tack reach and down wind Also remember that the Ground Wind will be referenced either with or without the wind shear and only at the top of the mast This will also mean that you will have different lay line angles on port and starboard Asymmetric Sailing is faster for those who know and understand this principle too 6 6 Polar and Target Boat Speed Th
20. in the dialogue box If calibration is accepted press Apply To abort the calibration press Cancel NOTE CDOP Calibration Dilution Of Precision in the calibration result dialogue box is a measure of reliability of the calibration process where 1 00 represents the highest reliability There are small errors from several sources that can be hard to adjust for but you may try to adjust the leeway index for your boat The index represents mainly the efficiency of the boats keel The leeway is constantly calculated from a model where wind speed boat speed and wind angles are variables Leeway index 0 no leeway and index 10 is maximum leeway Leeway is preset to 5 but it can be changed according to a tuning trial to reduce CDOP 1 37 English NA E NX2 Race Software 6 3 Correction of the wind speed down wind When sailing down wind with spinnaker the wind will accelerate over the mast top and give a higher indicated wind speed than it actually is This over reading can be set through the NX2 Race SW in the Server This calibration must however be adjusted manually since there are some considerations to include in the decision to change this WS correction 21 Log Depth Compass Wind Wind speed 1 This over reading down wind is not linear so in light winds with a forward pointing wind transducer Factory calibration O 354 the over reading will be low With 3154 315 ENTE increas
21. inning when it comes to its end Previous Mark When data is logged to a file you may record a comment at any time As an example you may want to make a note of when you changed sails or made other interesting changes A click on Previous Mark will jump to the previous comment Next Mark A click on Next Mark will jump to the next comment English NA E NX2 Race Software Close Close will only close the dialog box not the logged file If you want to open the play back dialog box again click file and then click Open Playback dialog BE NX Sail Performance roe o 3k Djs 27 E dl 0 E Monitor Navigate Tools Help amp Close Connection Record Data Ctrl 5 Open Playback Dialog Exit Application 4 2 Setup your own monitor layout Click on the instrument symbol in the top left corner or the text Monitor a list of functions appear RACE ZA View Data E aix Selelct data tn open with an existing virtual instrument Available data Instruments W Apparent Wind Angle AWA Ak Apparent Wind Speed AWS nr Battery voltage BAT mp Bearing Origin to Destination BOD ss Boat Speed BSP ty Bearing to Waypoint BTW i Course made good CMG tap Course Over Ground COG rs Course to Steer CTS Ep Depth DEP OF Drift DFT Iig Distance made good DMG Dy Distance to Waypoint DTW Dr Heading Compass course True HI l g Total Distance LOG n Position POS s Rudder p
22. is box The Server will then transmit this information on the Nexus Network to all connected instruments After you have changed this setting you have to restart the system 1 32 NX2 Race Software NA E English Use NMEA Navigation If you want to use a NMEA navigation connected to the NMEA input you have to tick this box The navigation data Bearing and Distance to WP XTE etc will then transmitted by the Server on the Nexus Network to all connected instruments After you have changed this setting you have to restart the system Allow WPL Waypoint Location in If this box is ticked waypoints transmitted from the Navigator will be received by the system Send WPR Waypoint Location If this box is ticked waypoints will be transmitted via NMEA out 5 5 2 NMEA This setting is controlling the NMEA out put from the Server Note it will not affect what is transmitted on the NX2 Race SW virtual port The Server is able to transmit 16 sentences which will take about 2 second You may select which NMEA sentences to send in each box If you want one type of data to be send more often than 2 sec select it twice Settings 2 MZ Server Configuration NMEA Advanced 1 DBT Depth below transduce v 3 Vw Distance tough water 2 GLL Geographic position 10 VPW Speed parallel ta wind 3 GSV Satellites in view 11 vTG Track made good amp arc gt 4 HDM Heading course magn v 12 Vw True wind speed amp die
23. ll be 13 knots 10 x 1 30 Advanced corrections If the log transducer is mounted on one side of the hull it is likely you will have different readings on port and starboard If you tick the use advanced correction box the system will use these calibration values for port and starboard This require a wind transducer to determine on which tack you are Temperature offset If the temperature is read too high or too low you may adjust that up or down 5 2 2 Depth calibration Calibration 21 x Log Depth Compass Wind Parameters Transducer offset m Supression filter 0z Transducer offset The transducer offset is the distance from the transducer to the water surface The value entered in this box will be added to the measured depth If you want to display the depth from the keel set a negative value for the distance from the transducer to the keel l e if the draft of the boat is 1 6m and the transducer is mounted 0 4m below the surface the distance from the transducer to the keel is 1 2m Enter the value 1 2m to get the reading from the keel Suppression filter This function is not yet implemented 1 22 NX2 Race Software NA E English 5 2 3 Compass calibration TR 21 x Log Depth Compass wind Deviation Autodeviation utoDEW Status Ready Magnetic variation VAR Set the deviation direction first i e for East or for West then enter the magnetic value
24. n any of the following conditions occur After a new installation At the beginning of a season After a log transducer check If the compass has been moved If the mast or rig is serviced in such a way that the wind transducer might be offset e Onaregular basis depending on any other condition that might influence the measurement 6 2 The 3 step calibration process Start with either the compass 1 or the water speed 2 calibration 1 COMPASS Enter the local magnetic variation in the compass calibration setup or on the NX2 instruments The Auto deviation of the compass must be made in calm water with small waves preferably late evenings The Auto deviation can be made in current water and you may do it clockwise or counter clockwise After the Auto deviation also run the Auto check in the reverse direction You may control that the HDT course is equal with COG by motoring the boat in different directions where there is no current water If there is current water you may only check that HDT COG by going with the current then turn 180 degrees and check again by going in the opposite direction If there is a misalignment enter the offset value in the compass calibration dialogue box Watch up for placing magnetic parts close to the sensor put up a warning sign 2 WATER SPEED Basic Make the water speed calibration by motoring at a normal speed Make two runs out and back for at least 1 minute each at a fairly constant sp
25. nd angle will be distorted due to mast twist up wash and the fact that the boat is heeling All this together will give an error on the apparent wind angle and also on the true wind angle In order to get correct values for Polar tables etc it is very important that the wind angle and wind speed is correct The up wash correction in these boxes is the values for port and starboard They will only be used when tacking and the you may set the window for when you want to use it see Settings Advanced Factory calibration Each transducer is calibrated from factory Each transducer comes with calibration certificate Enter the values on the certificate for 000 045 090 135 etc This is essential to get correct values Installation offset and wind shear If the transducer is mounted of set to the boat you may enter the misalignment here This is also the value used in the automatic calibration to correct for wind share 5 2 5 Automatic Calibration Ww File Monitor Navigate Tools Help Checklist Fa Equipment check list This wizard will guide you through Compass the process of calibrating several transducers Log transducer TwinFin Wind transducer To make auto calibration possible you ll need to have a minimum of GPS position sensor equipment for the specific T procedures pierre rac Martini Use the list on the right to mark whatever equipment you have available Avbr
26. ng gt ga dT eis AS dnm Analogue ws True Wind Speed 3 x 2 AMM Ie MIN ba 30 01 00 24 01 00 18 01 00 12 00 00 06 00 00 00 00 Close click to close this Monitor display Night view Will turn this Monitor Display into night view Timespan Select the time span for this strip Average Will display the average both numerical and as a line in the strip Grid Will add a arid to the strio chart NX2 Race Software NA E English 4 4 Display Polar Diagram For how to enter your Polar table see 5 4 To view the actual Polar Diagram click on Monitor and select Polar Diagram Now you have to load the Polar Table click on Tools Control Load polar Diagram and brows to the Polar table file filename nxp and select The NX2 Race SW will continuously update the Polar Diagram with regards to wind angle Wind Speed Boat Speed and TBS Target Boat Speed To switch the polar table calculations on off Click The Polar Diagram The yellow line represents the optimum speed for the corresponding wind angle The white line is representing the current Boat speed and wind angle The length of the line is the speed If the boat speed exceeds the TBS it will turn red English NA E NX2 Race Software 4 5 Save a layout When you have created a new layout that you want to save for later use click on tools and the Save layout Monitor Navigate Tools Help y Ele Monitor Navigate Tools Help Calibr
27. nter our homepage and register you have to enter your name e mail address and a username After registration an e mail will be send to the address you stated with you entry code At first start of the NX2 Race SW enter your User name and Code Registration i E 2 xl The NX2 Race is looking forward to your free registration Please click on How to register for more information Happy Racing User name Registration code How to register Cancel If you do not enter the code NX2 Race SW will be switched off after 20min English NA E NX2 Race Software 3 1 4 Use the NX2 Race SW with a FDX Server RUN CX A e e 4 Ready OO O NX2 FDX server on COM port comi 4 Pre recorded FOX binary data Mt startup ae Note navigation from a PC NMEA SW is only possible for Servers of version 5 3 or later Click on the connector symbol in the top left corner Select the Communication port where the cable to the Server is connected Click OK A green light will be turned on in the top right corner when communication is established 3 1 5 Connect to a pre recorded FDX binary file Instead of connecting the NX2 Race SW to a hardware communication port you may connect to a previously recorded file an example of a pre recorded file is found under NX2 Race data recorded The software may then be used in the same way as if it was connected to the Server However it is not possible to edit waypoi
28. nts change calibration values etc The virtual NMEA port see 4 8 will be fully functioning even when connected to a pre recorded file That means you can output your data to a Navigation NMEA SW while checking your data The NX2 Race SW will output all data that was available during the logging The NMEA Navigation SW will get data such as position speed course etc NX2 Race Software NA E English 4 Use the NX2 Race SW 4 1 How to use the NX2 Race SW When the Software is started and connected to the supplied previously logged file you can start to use the Software 4 1 1 Monitoring A pre selected layout will appear on the screen you may customize 5 layouts In the bottom right corner the play back dialog box will be displayed if connected to a pre recorded file Playing back firstIMSrace nxb Rate Position in file Q Turba al O 2x Wrap around e ix O 1 2 x Prev Mark Next Mark Rate Rate is the speed of which you want to play back the recorded file You may select with 1 2 1 1 double speed or Turbo The up date rate in Turbo mode depends on the performance of your PC and what other Software s you are running simultaneously Note it is not the speed of the boat you are changing only the speed of data rate IMS Sandhamn 1 juli Position in File By moving the bar you can jump to other positions in the recorded file Wrap around If the tick box wrap around is ticked the file starts over from the beg
29. olis force so the wind will shear to the right from sea level up to the mast top and above The wind transducer will only measure at one altitude so you need to understand and consider this sheared angle to adjust the sail accordingly down to deck level Note Several meteorological effects will have impact on the size of the sheared wind When cold and warm air is mixed with faster winds from higher levels gradients and sheared winds may locally change very fast Generally by applying sail trim according to the size of wind shear you can get more power out of the wind on starboard by adding more twist to match the shear on starboard only This will reduce the top force from the wind move the pressure centre downwards and allow for a more forward pointing and efficient wind force The wind instrument will show you that you are sailing lower than port side but it is only a relative illusion since the reference is from your average attack angle and sail trim including wind shear On port side the sheared wind is negative and it requires more flat sail trim The instruments will tell you that you are sailing high and fast on port tack but this is also a relative illusion but opposite from starboard tack You have less wind force in the top of the sail so the efficient wind pressure centre is moved downwards Then for a given heel angle you will have a wider wind angle which mean that you are actually not sailing as high as t
30. osition RDR Ey Drift Direction SET Speed Over Ground SOG Im Ties fansi Masad A NX2 Race Software NA E English Select the function from the list Some functions may be displayed digital analog or as Strip Charts some only digital Select the type of display you want by double clicking on the corresponding icon to the right Now the display appears on the screen You may now move or change the window with the mouse control You may open as many windows as you want Most data may be displayed as Digital boxes Analog instruments or strip charts GWD Ground Wind Directs xj 7 65 kts ERES Digital E Analogue TWS True Wind Speed E 50 00 12 55 00 10 20 00 07 45 00 05 10 00 02 35 00 00 00 Strip Chart 4 3 Set up the Monitor displays You may Set up each Monitor as follows Right click on the Monitor display you want to set up Digital BSP Boat Speed Close click to close this Monitor display 8 60 kts Night view Will turn this Monitor a Display into night view A Dampening Select the dampening of Might View this Monitor Display Damping d Measured Unit Select which measurement les ng mb v unit you require English NA E NX2 Race Software Analogue IGWD Ground Wind Direction True ye Close click to close this Monitor display a Dampening Select the dampening of this Monitor Display E90 Close ha Dampi
31. pass Wind Factory calibration o T 315 315 45 45 270 270 ap 90 225 2250 13135 1807 180 Installation offset and 3 wind shear gt oF Use downwind correction Reduction 0x Use upwash correction Starboard ol Port 4 7 tn vekst ll Offset Offset is the start value for the wind speed and it could be described as the friction Normally this value is about 0 5 m s and it will be constant at all wind speeds Gain Gain is the calibration value for the wind speed and has to do with the shape of the propeller The percentage is the value the measured wind speed will increase with As an example measured speed is 10m s and the Correction is 7095 the corrected speed will be 17 m s 10 x 1 70 For two blade propellers the calibration value is 5096 For three blade propellers the calibration value is 7096 Down wind correction Normally the apparent wind speed increases when you are sailing downwind That has to do with the fact that the wind has to pass the sails which the wind see as an obstacle If you enter 15 the wind speed will be decreased with 15 at 180 degree and half of it 7 596 at 135 degree At 90 degree there will be no downwind correction 1 24 NX2 Race Software NA E English Tick the box and enter the value for down wind correction Note a mast head rigged boat requires more down wind correction than a fractional rig When you are tacking the apparent wi
32. rom a strong to a weaker wind condition The weather conditions will change and wind shear will be different so each T R U E process must be considered as a temporary reference for the day or during a race That is why it is easy to recalibrate by use of the T R U E process 1 38 NX2 Race Software NA E English The T R U E process can be done during the race If the 1 3 calibration has been properly carried out you may use the T R U E process even during steady current water Avoid the T R U E process if the answer is No on one of the following questions This auto calibration procedure will Calibration stages help you eliminate some of the errors introduced by misalignments and other installation issues Time to wait before collecting data 1 minutes There are several stages in this procedure During each stage try to sail the boat as close as possible to what the steering pilot indicates Press Next when unu are ready to go ta the next stage LE NN NN E dl Collect data For a minimum time of 2 minutes You can cancel the procedure at any time but all the computed data will be lost lt F reg ende Avbryt e ls there free wind during the complete up wind calibration Avoid close competitors obstacles or influence from land during the calibration process e ls the wind condition steady enough for a calibration Very large variation in wind speed and direction might degrade
33. steer are instantly related to the True Wind Angle that will give the fastest speed from the actual True Wind Speed found in the Polar data Activate and Deactivate the POC function Press the Icon with Polar symbol to activate or deactivate TBS and POC If you change the Steer reference to the Steer Pilot from any NX2 instrument the POC function is cancelled and the new reference is activated MEM BTW AWA or CTS To activate POC again press the Icon with Polar OFF and ON again You can see this function as a real time VMG velocity Made Good from Polar table displayed on the Steer Pilot where you steer to keep the needle strait up This will give you the fastest speed from the wind according to the polar data NX2 Race Software English 1 43 Copyright Silva Sweden AB Kuskvagen 4 191 62 Sollentuna Sweden Tel 46 0 8 623 43 00 Fax 46 0 8 92 76 01 www silva se 22547 1 Edition 4
34. t Now you can open up any other NMEA application and connect that to the same port All data that are available on the FDX input port or stored in the pre recorded file will be send out on the virtual port Note The virtual port will only run on Windows 2000 or Windows XP 4 8 1 Allow NMEA Navigation Data input You may choose if you want to navigate from your NX2 GPA Navigator or if you want your PC Navigation software to navigate If the PC software is navigating the data such as Bearing and distance to Waypoint XTE TTG etc will be send from the PC Software via NMEA into the NX2 Race SW who converts the data into FDX and sends it out on the Nexus Network All instruments on the Network may then display all Navigation Data The drawback of this is that the PC has to powered all the time The other solution is to just transfer Waypoints from the PC Navigation software and then create your own Sailplans and routes in the NX2 GPS Navigator Then you may switch of the PC at any time and the NX2 GPS Navigator will carry on with the Navigation 4 8 2 Autoconnect at startup If this box is ticked the SW will connect to the same com port or file as it was connected to last time English NA E NX2 Race Software 4 8 3 Navigation If you have a NX2 or Nexus navigator GPS Navigator or Multi Center you can create and edit waypoints and routes from your NX2 Race SW Software All Waypoints and routes are stored directly in your instrument
35. the calibration efficiency e ls the up wind sailing going through an area where the current will vary It is recommended to avoid calibration where current appears inconsistent from one leg to another Activate the T R U E process when you are sailing steady on port or starboard The minimum measure time is 1 minute then whenever you are ready tack The T R U E process will then wait 1 minute before it start to measure again When the minimum 1 minute measurement has been completed you must apply the result found in the dialogue box You have two options either include or exclude the wind shear offset from the tick box If you choose to add wind shear and offset you will get equal AWA and TWA wind angles on port and starboard Or you may choose to avoid adding this offset to the wind angle and instead take advantage of it as information on the wind instrument Read the section about Wind Shear and make your decision 1 39 English NA E NX2 Race Software 6 5 Wind Sheer When there is wind speed there is wind shear What is wind shear The main reason for wind shear is due to the Coriolis force The wind will rotate counter clockwise on the North Hemisphere around the centre of the low pressure Then there is a friction between the sea surface and the free air above This friction will slow down the airspeed at sea level and gradually up into the free air above This friction will also decrease the effect of the Cori
36. the navigation Hint Use the waypoints over 300 as route waypoints Every time you want to import a route make sure all waypoints above 300 are deleted Then use waypoints above 300 as temporary waypoints Note If you want to store the Sailplan as a Route for use in the future you have to store it before you start The waypoints in the 5 Tools 5 1 Calibration The Calibration only works when the PC is connected to the FDX Server All calibration values are stored in the Server The calibration may be done manually or automatic In order to achieve an automatic calibration some minimum system requirements has to be fulfilled see more under automatic calibration 5 2 Manual calibration 5 2 1 Log calibration Log Depth Compass wind Water Speed Water Temperature Offset 04 kts Offset ot Correction 30 Total log O NM Use advanced correction Starboard DE Port 0 OK Avbryt Verkstall Offset Offset is the start value for the log and it could be described as slip or friction Normally this value is about 0 4 knots and it will be constant at all speeds Correction 1 21 English MND NX2 Race Software Correction is the calibration value for the log and has to do with the shape of the hull and the position of the transducer The percentage is the value measured speed will be increased with As an example measured speed is 10 knots and the Correction is 30 the corrected speed wi
37. tude Longitude used a Display position as 1 ORIGIN 059 33 070 N 018 49 511 E e A 0 DDeMM mmm MX399 MOB POS 059931 183 N 018 56 199 E 0 A UMNMEA 01 059931 697 N 018950 255 E 0 i OM RASO 059932 336 N 018955 581 E 0 a PER kese 059932 381 N 019901 773 E o 059 30 994 N 019 04 459 E 0 jen 059928 769 N 019905 631 E 0 NM SE 059 26 760 N 019 03 771 E 0 d d Au 059924 268 N 019905 247 E o d i i gt a HE PT a d xxr T 2 E Waypoints in selected route s ecd AE gt cs n No Name Length Bearing d k LJ 0 CURRUT 0 p gg Ef ots i Dd 4 x o Q S ET i 3 5 H 59 ae 13 ks o gt o 20 14 Ed o I P al roo pa S E A Pn Waypoints received via NMEA will get the pre fix NMEA To convert them into NX2 waypoints and store them in the NX2 GPS Navigator right click on a waypoint and edit it You may now give the waypoint a new number and name Close O o X o 4 You may also select all waypoints and select edit The waypoints will then be given numbers in sequence order starting from the number you give the first waypoint Example In this example the NMEA Navigation SW SeaClear is used most software s work in a similar way Create a route in the NMEA Navigation SW close the editor and go to File Route export NMEA In this example a route consisting of 7 waypoints where exporte
38. ve red back lighting which you can set to three different lighting levels A large selection of optional analogue repeaters and accessories are available The analogue steer pilot instrument particularly offers unique functions When used together with the steer reference function AWA you can actually steer after the wind and expand the tacking or down wind angle These Nexus instruments carry a two year warranty which gives you as our customer confidence to trust Nexus and our commitment to quality The Server has a built in PC port for RS 232 Serial data but also comes with a Serial to USB converter Good luck and happy boating English NA E NX2 Race Software Typical NX2 system C ockpit Multi XL Multi XL Steer wind GPS r Server Nexus Network NMEA Nav table Rai PERRA PER AAE EATEN OEL TEEI Y E3Sc i 1 6 NX2 Race Software NA E English 2 Installation 3 Installation of the NX2 Race Software 3 1 1 General The NX2 Race Software is a shareware that only fully works together with a FDX Server after registration at www silva se 3 1 2 Installing the Software Insert the CD to your computer Open Run Software Brows to your CD normally D and click on NX2 Race SW Click on Setup Follow the instructions on your screen Now run the NX2 Race Software 3 1 3 Register The NX2 Race software requires a registration at www silva se for full functionality When you e
39. yt Some functions may be automatically calibrated In order to do so there are some minimum system requirements If you have the following parts in your system Compass transducer Log transducer Twin Fin wind transducer GPS Position Antenna GPS navigator You may calibrate the following 1 25 English NA E NX2 Race Software Compass Boat Speed Up Wind Sailing Down Wind Sailing Tick the boxes for the transducer you have in your system and then select what you want to calibrate Follow the instructions on the screen Reed more in chapter Fel Hittar inte referenskalla 5 3 Controls MS Eile Monitor Navigate Tools Help Calibrate d ee en a Settings Forca Steering Pilot Trim H Save Layout NUIT Remote EG Load Layout og Platte T 09 Reset trip counter E Options A Man Over Board MOB Reinitialize Nexus network Load polar table 5 3 1 Timer Here you may start the Race timer at 5 or 10 minuet count down This is only possible if a Server is connected The information will be send out on the Nexus Network to all instruments NX2 Sail Performance m rad EE EM Ready Fie Monto Navigate Jools Help 1 26 NX2 Race Software NA E English 5 3 2 Steer Pilot Here you may select the reference and the value for the Steer Pilot to refer to Steer command EI Es MEM Heading Compass cou 5 3 3 Trim Here you may select the r
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