Raymarine's FAQs for Micronet 'Cruising' Systems   


Can I add more Displays to my Micronet system?
Yes. A new instrument can be added to an existing network by simply bringing it close to the existing network and using one of the original instrument to carry out the "Autonetwork" procedure. Any new display or transmitter can be added to an existing network. Leave the new display switched off and simply hold it close to one of the original displays.

Turn on the original display and navigate to SETUP / OPTIONS / AUTONETWORK to carry out the networking procedure. During the 60 second countdown the new unit will power up and join the existing network. The original display will beep and display "Unit Add". You must ensure that any "Entry Level" products have a power supply connected.

Joining two existing networks together varies with software. From 2010 networks can merge and parts that already form an alternative network will power up and display "Join" requiring a keypad press and confirmation before allowing the procedure to continue and all parts of the two networks involved will combine. On older software units it is best to separate (>100m) the individual units and introduce them to the required network one by one keeping any other components out of radio contact with the networking pair during the network process.

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Why can't I get my Micronet instruments to Network?
Make sure that any components of your system have not previously been networked to each other. It is not possible to join two networks together without first separating each individual item.

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How much back up power do my Tacktick Displays have if they are not taking a charge?
A Micronet instrument will operate for around 300 hours with no recharging at all.

If the backlighting is used then time will be reduced depending on the level of illumination used.


Battery level can be monitored from an icon on the bottom left of each display.

Recharging will occur even in cloudy daylight and the charge rate can be monitored from the icon on the lower right of each display.



Tacktick charging

In emergencies there are terminals on the rear of all mn100 and mn100-2 instruments which allow the connection of an external 9 - 24Vdc supply to recharge the instrument.

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How long do the rechargeable batteries in my Tacktick instruments last?
The batteries are affected by discharge and the life of the batteries used is not measured in time but in cycles of charge and discharge. In normal operation the Micronet displays operate at a very low discharge level as they are continually charged by daylight. This will give the batteries a life span of well in excess of 10 years.



If the batteries are continually drained flat then recharged again, then the overall life will be reduced but this is not part of their normal operating range. All Tacktick instruments manufactured since 2006 have replaceable batteries so in the unlikely event of a total battery failure a new battery pack can be easily fitted.

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Why are my boat speed values different for each tack?
This is almost certainly due to an offset from the centre line or due to a miss-alignment of the transducer housing in the boat's hull.


An offset puts the sensor at a different vertical height on each tack, and the flow acceleration under the hull varies with height, hence the problem and it is a common problem with speed transducers when they are not mounted on centre (often you can't mount them on the centre line due to structural issues such as stringers. The simplest "solution" is to experiment with rotating the paddle housing either clockwise or counterclockwise by around 10 to 20 degrees. By doing this, you correct the asymetry with the rotational alignment.


If the housing is not aligned correctly in the hull it may be necessary to twist the transducer to ensure the correct speed readings. In these cases the keyway slot in the top of the housing should be extended using a sharp knife or small file to ensure the transducer can be fully secured and sealed into the housing.


The Tacktick Race Master, Maxi and Dual Maxi displays have a software calibration to correct for tack to tack speed differences.


Always ensure there is a good coating of silicone grease on the o-rings around the transducer inserts. Dry o-rings can cause the transducers to stick and not push fully into the housings. In severe cases damage to the housing and the internal valves can be caused by sticking o-rings.

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Can I reduce or increase the length of cable to my transducers?
It is not advisable to increase the length of the cables but they can be shortened.


Tacktick encourages the shortening of cables. Due to the nature of the Hull Transmitter and Speed/Depth Pod it is designed to be installed close to the Transducers reducing the requirement to run lengthy cables through the boat. Unusual in Marine Electronics it is acceptable to reduce the length of the Depth Transducer cable as well as those of the speed and compass transducers. It is preferable to shorten all cables rather than coil up any excess.


Increasing the cable length will result in reduced signals and possible introduction of "noise" into the system reducing reliability.

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Can my Tacktick be used in the southern hemisphere?
Yes. There is no set up required. The fluxgate compass units installed in Tacktick devices operate correctly all around the globe. There are no regional changes to be made and the compass readings will be accurate worldwide.

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My Speed readings are low or zero. What can I do?
First you should check the paddle wheel is clean and running freely by removing the transducer from the in hull housing and checking carefully for debris.

If the paddle wheel turns freely by hand but no speed is displayed:
Check on the Race Master display in the Setup / Health chapter that the Hull Transmitter is operating correctly. In a simple Race Master System the first page in the Health Chapter should indicate "no2" and the next page should give information under the title HULL.

f the Hull Transmitter is not working check that there is a power supply (battery or solar panel) connected and if there is no change after 6 hours of charging contact Tacktick support by filling in the Customer Support Form.

If the Hull Transmitter is communicating with the Race Master check carefully the transducer connections.

Disconnecting the brown or white wires will change the speed reading from 0.0 to - - -. Connecting a direct link between the brown and white terminals on the Hull Transmitter will change the speed reading from - - - to 0.0 without any other connections being made.

Connection Description

Brown - Temperature Sensor
White - Temperature Sensor
Red - Power to Transducer
Green - Pulse from Transducer
Screen - O Volt reference

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My transducer is very stiff and will not inset fully into the housing. What is wrong?
It is important to ensure that the o-rings on all transducers are carefully greased before they are inserted into the housing.


In the case of the T911 and T912 Speed and Depth Transducers insufficient grease will make the inserts stiff and hard to insert and once in place it may be very difficult to remove the transducer again.


In the case of the T910 Triducer the large yellow o-ring at the top of the Triducer insert will not pass into the top of the housing at all unless it is greased. The hand nut that secures the Triducer will feel tight but the bottom transducer surface will not be flush with the outside of the hull and speed and depth information will be incorrect. In severe cases the valve from the inside of the housing can be broken when trying to remove a Triducer that is not well greased.


All Tacktick Transducers are supplied with a small tube of silicone grease suitable for application to the o-rings.

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What Frequency does my Tacktick product work on?
Tacktick Micronet products operate on 2 frequencies:


916MHz - USA, Canada, South America, Autralasia, Japan.

869MHz - UK, Europe, Africa.


These different frequencies are required to operate within the legally defined bands in the relevant countries.


All displays manufactured since January 2008 can be changed via the keypad and transmitters (hull, wind, nmea) are "Global Frequency Response" from November 2007. Products manufactured before these dates should be returned to Tacktick for update should a frequency change be required.


To Change Frequency:

Press and hold key 2 for 2 seconds to enter setup.

Scroll down using key 1 to view the Health chapter.

Step right using key 4 to display the units own software version.

Press and hold key 3 for 5 seconds to enter frequency selection.

Press key 2 to make the selection flash*.

Use key 3 and 4 to change to the required frequency.

Press and hold key 2 to set the required frequency.

Power down the system.


On the next power up the complete network will operate on the selected frequency.


*The default frequency for a display is indicated on the serial number label. Setting the software switch to "OFF" will allow the display to operate at the default frequency.

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Why do my displays show and alarm a " Power no volts" message soon after start up?
Power No Volts will be displayed just once, 10 seconds after the system is first powered to indicate that either Hull or NMEA Transmitter is not receiving good volts - the alarm is a reminder to switch on power or indicate that there is an issue one of the units not receiving charge. An NMEA or Hull low battery alarm/meassage will follow at approximately 30 hours remaining to indicate which unit may have issue. Both Hull and NMEA Transmitters process solely from their own internal batteries for approximately 100 hours back up before the unit will shut down (at safe level for recharge) and any unit perhaps not restarting when the system is switched on should be connected to volts for a period 12-24 hours. For this issue - we would recommend double checking the volts connection remaking the connections as a process of elimination. Please also check that the polarity is correct.

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Will a Micronet system be affected by carbon fibre boats?
It can be. In many tests we have not seen any problems caused by carbon fibre components in a boat, however, mounting Transmitters inside a boat constructed totally of carbon fibre will reduce signal strength which may vary when the carbon fibre components are wet. It is also not recommended to mount a display flat onto a carbon fibre surface as there may be some detuning of the antenna. If using carbon fibre mast brackets it is recommended that holes are cut in the brackets behind the displays to prevent possible problems. Tacktick do NOT recommend the use of the clip bracket when displays are mounted to a mast bracket. Lines associated with sail control can get caught on displays causing them to become detatched.

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Will my Displays re-charge their battery even if they are switched off?
All batteries will be charged when off regardless of whether they are Displays left in daylight or Hull/NMEA Transmitters left connected to an external power source.

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Will my Micornet Displays charge when it is cloudy?
Although direct bright sunlight provides the best charge for any Tacktick instrument charging will occur even on a cloudy day. On very dull days the sunlight may not actually add charge to the internal batteries but the power generated by the solar cells will be enough to maintain the current battery level of the Display.

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Can I connect the NMEA Interface to my laptop for navigation software?
Yes. The Tacktick NMEA Interface has 2 NMEA inputs and one output. Connecting a GPS to Input 1 will leave Input 2 and the Output available to connect to a PC.

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What is the update speed of the data on my Micronet system?
Micronet information is transmitted in pulses from the Transmitters to the Displays where it is damped to produce readable figures. By default the response level for each item of data is set to Auto allowing the system to increase and decrease the data update rates depending on the conditions. All response levels may be permanently set to Fast, Med, Slow from the calibration menu on any Digital Displays.

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Will the Hull Transmitter and NMEA Interface batteries discharge even when the system is switched off?
When a Micronet system is switched off there remains a small power loss from each individual item as it "listens" for activity from other items. The power loss is extremely low and a fully charged product will remain active for several years.

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I had an old instruments system with through hull transducers, can I use these with a Micronet system?
Tacktick use Airmar transducers which are common with many other marine electronics manufacturers. 13 degree Beam Width 250W RMS Power 51mm (2") Hole Diameter Speed 19,000 pulses per nautical mile 8 Vdc supply voltage 51mm (2") Hole Diameter

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Is there a possibility that my neighbours Micronet system could interfere with mine or that I could read information on his boat and vice versa?
Each Micronet system has its own unique address. This ensures that it will not communicate with any other Micronet system.

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Will I lose my Wind, Log or Compass calibration if the battery goes too low on the Hull Transmitter?
No.The calibration information is stored on all the individual components of a Micronet network individually. When a calibration setting is changed it is transmitted to each component ensuring that this informaiton is secure within the network, regardless of what may happen to any individual component.

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I get a "Hull Low Battery" alarm sounding on my instruments. Why?
If there is a switch on the circuit breaker panel labelled instruments ensure that this is on. Because it is possible to operate the Micronet Displays without having the boats electrical system switched on it is possible that the below decks transmitters (Hull and NMEA)can run short of power. If the alarm sounds with Low Battery then ensure there is power to the transmitter indicated.

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Which of my Displays is the Master in my network?
The "Master" instrument in a Micronet system is the Display which was used to power up the system, this can be a different display each time. The only time a user will be interested in which Display is the "Master" is when using the Autonetwork feature or fault finding.

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How do I find out how well my system is operating?
Information about a Micronet network is available from any display by entering the Calibration Mode and navigating to the Health chapter.

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Will my mobile phone or any other similar technology interfere with my Micronet system?
The radio frequency of the Micronet instrument range is close to that of GSM Mobile telephones but not close enough for interference to occur under normal circumstances.


If your boat is moored directly below a mobile telephone mast then it is possible that some interference could occur.


Due to international radio licensing restrictions Micronet is forced to operate on different frequencies in different locations:


916MHz - USA / Australasia

869MHz - Europe / Africa


Although Micronet systems will operate in any region of the world using the wrong frequency could lead to interference from other transmitting equipment in that region. All Micronet transmitters (Hull, Wind, NMEA, etc.) are Global Frequency and will work on either of the two frequencies automatically. Micronet displays can be switched from one frequency to the other via the keypad.

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Can I get parts for the Wind Transmitter, like the wind cups or the vane?
Yes. They are available but there have been very few losses of these elements as they are firmly mounted.

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One of my Micronet instruments rattles when shaken?
All Tacktick products are totally sealed at manufacture. To remove any moisture from the air trapped inside during the assembly process a Silica Gel bag is inserted. This rattles when a unit is shaken and is perfectly normal.

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I want to connect my Micronet system to my autopilot, but I was told that NMEA data won't be fast enough... Is that right?
The Micronet NMEA Interface will output wind angle data every second. This is more than enough to adapt your pilot reference.

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Can Micronet wind information compensate for rotating masts?
Tacktick is currently the only marine electronics manufacturer to provide an effective solution to this problem. By installing a T221 Mast Rotation Transmitter. This unit attached to the mast and will compensate for mast rotation allowing Apparent and True wind information to be generated correctly whatever the angle of the mast. A Micronet system equipped with a Fluxgate compass or Magnetic Heading from an external NMEA source is required along with the Mast Rotation Sensor.

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Will my Micronet Dispays charge if they are under a spray hood?
Yes. Although bright sunlight offers the best charging results all Tacktick products will charge in shaded daylight. An indicaton of the charge rate is shown on the lower right corner of the display and an indication of the battery level is shown on the lower left corner. If there is any concern over the charge level then the instrument should be temporarily moved to a sunny area for a few hours. In rare cases where bad weather and heavy use of the displays causes the battery levels to run low then a 9-24Vdc power source can be connected to the back of the instrument to recharge the internal batteries.

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Can I mount my transducers in hull? 

Depth - Yes.

The standard T912 retractable depth transducer supplied by Tacktick can be installed without cutting a hole in the bottom of the boat. The supplied through hull fitting can be bonded to the inside of the hull ( a spacer should be constructed to take up and angle (deadrise) in the hull ensuring that the transducer is mounted vertically downwards). Remove the o-ring seals from the bottom of the transducer and fill the fitted tube with oil before inserting the transducer and securing with the screw cap. If fitted correctly there will be only a very slight reduction of performance compared to a standard through hull installation.


Speed - No.

The Standard T911 Speed Transducer supplied by Tacktick is a paddle wheel device which requires through the hull installation. The standard housing is of a low profile design and is fitted with a valve to reduce the amount of water coming into the boat when the transducer is removed for cleaning. If required a "Flush Mount" housing (T943)is available to keep the housing totally flush with the outer surface of the hull.


Triducer - No.

The T910 Triducer supplied by Tacktick is a paddle wheel device which requires through the hull installation. The standard housing is of a low profile design and is fitted with a valve to reduce the amount of water coming into the boat when the transducer is removed for cleaning. If required a "Flush Mount" housing (T943)is available to keep the housing totally flush with the outer surface of the hull. The T075 Race Master System comes complete with the optional flush housing included.

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Where do I mount my transducers?
We do not recommend locations or methods for installations for speed or depth tansducers however most boats find that in front of the keel by at least 400mm and as close to the centre line works well. The depth transducer can be mounted in hull or through hull but you will find for best performance through hull is required. Do not mount the depth transducer directly behind the speed transducer as turbulence caused by the paddle wheel may effect depth performance. Compass transducers should be mounted as close to the centre of the boat as possible but keeping them in an area where there is little or no local magnetic material. Keep clear of ferrous metals, pumps and motors, loud speakers and tools. If the compass transducer is hidden from view then mark the area with a warning to prevent people storing metalic material close by.

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I am laying up my boat for the winter. What is the best thing to do with my Micronet Instruments?
It is best to ensure that all the wireless components of a Micronet system are fully charged before storing for the winter. If there is not enough sunlight to charge Displays then connect a 9-24V supply to the terminals hidden behind the small panel on the rear of the display and leave for 12 hours. Ensure that power has been supplied to Hull and NMEA Transmitters for 12 hours before layup. If the mast is taken down for the winter then it is best to remove the Wind Transmitter to prevent damage. Check the outside of the unit is clean and rinse with fresh water then dry it thouroughly before storing safely away. All components can be stored away on the boat or at home for the winter period.

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Can I buy a discontinued product?
No. It is not possible to purchase discontinued products directly from Tacktick. However, there is often a second hand market for such items. The main reason for a product to be discontinued is that it has been superseded by a new improved version.

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Why is my depth reading locked on one depth only?
This can be cased by a keel with a bulb or wing on the bottom. The depth sounder picks up a reflection from the keel and this looks like a fixed depth. Often setting a keel offset will prevent this from happening. It is also possible that a transducer that is not fully inserted into the housing can cause this as the system picks up an echo from the edge of the housing.

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Is my Tacktick waterproof? 
Yes. All Tacktick displays are waterproof. Submersible to 10 Meters although the Micro Compass will float.


Unlike many other marine electronics instruments Tacktick products are fully sealed and can be submerged to depths of 10m. There have been reports of displays being lost overboard and then retrieved later by divers several days later to be placed back on board still working.


It is recommended that Hull Transmitters and Speed/Depth Pods are located in areas of the boat such that they are not subjected to direct water spray.

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Can I set a depth offset for the keel?
Yes. The calibration mode will enable you to adjust the depth offset.

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