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Display Unit

The remote display is completely waterproof so you can put it wherever is most con-
venient and visible for both skipper and crew*. Remember that the display is a
repeater and not the sensing device so it is not sensitive to nearby metal or magnets,
nor does it contain any metal or magnets.  It will not affect other instruments or con-
ventional compasses. Furthermore, the cable is shielded so R.F. interference should be
minimal.

There are various spots which other sailors have found to be ideal display locations on
their boats. But as with everything, every sailor has his own preference.  Here are some
often used locations to consider for your installation:

1.   On either side of the bulkhead.

This is usually a good spot on both large and 

small boats and is quite visible to the helmsman. 

2. On the mast.

This location is very popular among racing boats (35 feet and small-

er) as it allows the skipper to keep his head up.  This is also a great location 
because it makes the display visible to  the entire crew.  KVH offers special single 
and dual display mast brackets which attach to the sail slot and slide into the mast. 
The brackets are designed so that the Cunningham and other control lines can be 
led through them without obstruction. 

(see Brackets on price list)

3. Pod mounted on a steering pedestal.

Check with your steering gear manufacturer 

for details.

When determining the right spot for
the display on your boat, keep in
mind that 

the display must be

mounted on a flat surface to avoid
unnecessary stress on the watertight
seal

. If the display is installed on a

surface that is not flat, you can break
the seal on the display causing it to
leak as the flat display will bend to
conform to the curved surface. If
your spot is not perfectly flat, use a
small block of wood to make a flat
mounting plate. If using a Sailcomp
mast bracket, this is not a concern as
the bracket is specifically designed
for the display. 

10

INSTALLATION

*Up to 4 displays may be added to the system if desired. There is an additional port on the
Junction Box for the second display, but a Y-Box Connector is needed for the 3rd and 4th dis-
plays. Contact your dealer or KVH.

Do not mount on 

curved surface!

seal

Summary of Contents for Sailcomp 103AC

Page 1: ...e Mode 24 3 Nav Repeater Mode 26 4 Head Lift Mode 28 5 Starting Timer Mode 29 6 Switching Between Modes 30 IV RACING WITH THE SAILCOMP 1 Shooting the Wind 32 2 The Starting Line 32 3 The Start 32 4 Th...

Page 2: ...f utmost importance to its accuracy and precision and most of all to your enjoyment of your new electronic compass nav repeater Serious damage inaccuracies or loss of warranty can result from incorrec...

Page 3: ...ng hardware This includes Fluxgate Sensor Unit 3 3 4 10 self tapping screws Junction Box 4 3 4 6 self thread screws Remote Display Unit 4 1 3 4 10 32 studs 4 10 32 hex nuts 4 10 washers Remote Keypad...

Page 4: ...or does not contain mag nets it measures the earth s magnetic field electronically Large pieces of metal will distort the earth s flux lines which the sensor measures thus causing some error To minimi...

Page 5: ...table times keep the sensor away from them 7 other magnetic compasses compasses mounted or stored down below including some sensors from your other electronic gear should be kept away from the sensor...

Page 6: ...t good locations for the junction box remote display s and remote keypad to ensure that the provided cable is long enough for your installation Junction Box The junction box should be placed in a hand...

Page 7: ...to the entire crew KVH offers special single and dual display mast brackets which attach to the sail slot and slide into the mast The brackets are designed so that the Cunningham and other control lin...

Page 8: ...le available in 15 and 25 lengths by contacting your local dealer The system may have up to 100 of extension cable added without losing signal integrity Never try to extend or cut the display cable ke...

Page 9: ...is manual to the bulkhead or area where you want to mount the display Use a center punch on the crosshairs indicated on the template 2 Drill four 1 4 holes for the enclosed 10 32 studs Then drill the...

Page 10: ...ly flat surface for the remote keypad follow these instructions carefully Note If it is impossible to reach underneath the keypad to put nuts on the studs you may have to build a mounting plate that y...

Page 11: ...nector will only fit onto a port in one position and is removed by pushing in on the grip surfaced part of the connector and pulling the connector straight off DO NOT TWIST See illustration left 1 Con...

Page 12: ...ilcomp s heading data The NMEA lines are used only for interfacing Note Any wires that are not used should be clipped back and insulated from one another The wiring is as follows Nav Repeater Mode bro...

Page 13: ...signal side b Connect the brown wire NMEA In to the Signal Ground point on the loran or GPS unit 2 The green and orange wires in the power cable are for outputting heading data from your Sailcomp 103A...

Page 14: ...is installed correctly this indicates that you have some type of magnetic interference on your boat that must be com pensated out of the Sailcomp 103AC You are now ready to compensate your Sailcomp 1...

Page 15: ...ng its accuracy on your boat and is very easy to do It involves turning your boat through two large lazy circles at a slow steady speed the circles may be slightly out of round or elliptical if necess...

Page 16: ...your auto compensation and to check that everything is O K see below Accessing the Compensation Dis play for Reviewing Compensation Data on the Sailcomp Remote The Sailcomp 103AC s Compensation Displa...

Page 17: ...etic field of a particular location may be so different from the fac tory calibration that the sensor will re compensate every 36 while doing a 360 turn Do not be alarmed if the compensation display s...

Page 18: ...t apply a short push to the nav button The display will flash the current value of the offset Offset is set at the factory to 00 3 If the heading is low or to the minus side on all headings you need t...

Page 19: ...re adjusted unless the sensor is moved Disabling Enabling Auto Compensation With auto compensation disabled your compass will be using the last compensation that has been stored but will be unable to...

Page 20: ...loran GPS is not ON or if way points are not entered into the Loran GPS the Sailcomp 103AC display will display when the nav button is pushed Timer The timer button puts the system into Starting Time...

Page 21: ...Course Mode your present heading is compared to a refer ence heading that you have selected and the difference is displayed in degrees with segments to the left or right on the upper analog display T...

Page 22: ...ht on the upper part of the display corresponding to how many degrees to port or starboard you are off your reference course s rhumb line By centering the upper display so that there are no segments t...

Page 23: ...not receiving any information from the loran or GPS When you instruct your loran or GPS to steer you to a waypoint the Nav Display will be activated Every 2 seconds the repeater will alternate betwee...

Page 24: ...Loran or GPS and are in Nav Repeater Mode 27 MODES NAV REPEATER Distance to Waypoint 3 2 nm 15 nm cross track error to right of track Bearing to Waypoint 085 Distance to Waypoint 3 2 nm 25 nm cross t...

Page 25: ...n to store your Starboard Tack Average When racing upwind on port or starboard tack if you are sailing closer to the mark than the stored averages more upwind this is called a Lift If you are heading...

Page 26: ...on port and lifts on star board The computer knows this so you have to keep the two straight The other thing you should keep in mind is that if you get a permanent wind shift of more than 45 degrees y...

Page 27: ...down the timer button and press the port button Make sure that you keep the timer button depressed while you press the port button The timer will reset to 0 00 and will immediately start another 10 mi...

Page 28: ...loran or GPS device This principal also works every time you turn the compass on Each time the compass is switched on it has reset all references to 000 by default So if you push any button only once...

Page 29: ...the two numbers If the line is perfectly square the difference should be 90 degrees If it s more than 90 you were heading away from the favored end If it is less than 90 you were heading toward the fa...

Page 30: ...ce you feel comfortable with your settings start looking at the compass Note the high and low numbers on each tack Now press the port or stbd button to get into Head Lift Mode When you feel you are on...

Page 31: ...ou may decide that you are into a persistent left shift pattern Similarly if the number of seg ments seem to be about the same on lifts and headers then you might conclude that it is a simple oscillat...

Page 32: ...s been a windshift You now are heading farther away from the mark just to keep the same wind angle that you had before All other things being equal like wind speed and boat speed you should jibe now s...

Page 33: ...A Offset apply a short push to the nav button The display will flash the current value of the offset Offset is set at the factory to 00 Important Note If you added or subtracted A Offset error during...

Page 34: ...sage If the display alternately flashes Lo and bAt the unit has insufficient voltage to function reliably All functions and auto compensation will be prohibited until the Sailcomp 103AC receives suffi...

Page 35: ...e 1 4 Interface Capability Loran GPS Input NMEA 0183 Standard Output NMEA 0183 Other optional interfaces available Power Supply Voltage Requirements 12V DC Current Consumption 65 mA light off 97 mA li...

Page 36: ...a contact cleaner Radio Shack etc Take care not to use any hard object that could bend the connector pins 3 Call the KVH Sales Office Random segments appear All segments come on at once and freeze He...

Page 37: ...nchor near the sensor If you are not aware of any changes you should check the sensor s environment do an intentional auto com pensation see pgs 17 19 and examine the compensation data pgs 19 20 C com...

Page 38: ...r plugs or junction box receptacles may be dirty To clean use a soft bristled brush and a contact cleaner Radio Shack etc Take care not to use any hard object that could bend the connector pins 3 Chec...

Page 39: ...tor pins 5 Call the KVH factory Power switch does not operate Light switch does not operate Damping switch does not operate 1 Check power supply as battery voltage may be too low If so charge battery...

Page 40: ...Junction Box Function Color Conn Pin No Off Course Red 1 Ground Black 2 Nav Blue 3 Port Trigger Brown 4 Stbd Trigger Green 5 Timer Trigger White 6 Ground Shield 7 Remote Display to Junction Box Funct...

Page 41: ...sum Similarly checksumLS repre sents the least significant nibble of the checksum The checksum is calculated by XOR ing together all the characters in the sentence up to but not including the characte...

Page 42: ...5 Format LCXTE A A X XX L N 1 Or ed value Blink and SNR A Valid V Invalid 2 Cycle Lock A Valid V Invalid 3 4 5 Cross Track Error 4 Steer Left or Right L Left R Right 5 Units N Mi The following senten...

Page 43: ...___ _____________________________________________________________________ _____________________________________________________________________ ________________________________________________________...

Page 44: ...NITIVE INCI DENTAL TORT OR CONSEQUENTIAL DAMAGES OR LOST PROFITS OR GOODWILL INCLUDING ANY DAMAGES RESULTING FROM LOSS OF USE DELAY IN DELIVERY OR OTHERWISE ARIS ING OUT OF OR IN CONNECTION WITH THE P...

Page 45: ...8 Remote Display Template 49 APPENDIX DISPLAY TEMPLATE 1 4 4 places 9 16 cut along here...

Page 46: ...9 Remote Keypad Template 51 APPENDIX KEYPAD TEMPLATE 5 32 2 places 3 4 cut along here...

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