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Call Us at 952-920-8500 M-F 9A-5P CST

Please Note: 03/30/21 - We are starting to see a slowdown in the supply chain. As a result, some items shown in-stock may be out of stock when you purchase them. This is due to the inconsistent updating of inventory from our manufactures and distributors. We are doing our best to update the inventory as soon as we receive information. If an item is not available when you purchase it we will notify you within one business day. 

Raymarine Axiom Now Fully Supports Oceanic's Volumetric Fuel Senders

by Rich Jamieson

Raymarine's latest LightHouse software upgrade release now fully supports Oceanic Systems' Fuel Sender Volumetric output and tank shape calibration!

LightHouse Annapolis 3.9 software has just been released which can now calibrate and display Oceanic's Fuel Sender Volumetric data. This means the user can know exactly how much fuel they have on board no matter what shape their tank is.

This AXIOM software release allows installer or user to input their volumetric calibration information directly into the AXIOM and display the fuel remaining in the tank rather than just its level for greatest accuracy.

The 3271 Volumetric Fuel Sender provides accurate measurement and is switch settable to display the remaining fuel as either LEVEL or VOLUMETRIC output.

It measures the tank level in 1% steps and provides a stilling action to dampen out fuel slosh in the tank to maximise accuracy when conditions are rough or the boat is travelling quickly.
  • Proven reliability – Over 10,000 installed worldwide
  • Easy to install and calibrate
  • Tank depths from 250mm to 2 metres
  • Can be cut to the exact length required
  • Robust stainless steel construction
  • NMEA2000® Certified
Available with SAE 5 Bolt, 1.25" BSP Threaded or 1.5” NPT Threaded mounts 

Raymarine Axiom Now Fully Supports Oceanic's Volumetric Fuel Senders


Purchase Oceanic Systems Fuel Level Senders here

MiniPlex-2 and MiniPlex-3 firmware and WiFi firmware updates - 09/08/16

by Rich Jamieson


Dear MiniPlex users,

A few new MiniPlex firmware and WiFi firmware updates can be downloaded from the ShipModul web site www.shipmodul.com:

MiniPlex-2 V3.33.2

In this version a bug has been fixed that could lock up the MiniPlex when it received too much NMEA data through the host interface. This particularly affected the MiniPlex-2E set to UDP broacast, on a network with other multiplexers which also sent NMEA data using UDP broadcast.
MiniPlex-3 V1.17.1
This version offers several bux fixes and improvements:

Bug Fixes
•    A bug has been fixed that could lock up the MiniPlex when it received too much NMEA data through the host interface. This particularly affected the MiniPlex-3E(-N2K) set to UDP broacast, on a network with other multiplexers which also sent NMEA data using UDP broadcast.

•    The MiniPlex-3 firmware is based on NMEA 2000 standard V2.0. However, many AIS transponders still use NMEA 2000 V1.3. 

PGN’s 129809 and 129810 (Class B Name and Static Data) received in V1.3 format were not converted to NMEA 0183. This mainly affects Raymarine AIS transponders. This version now correctly converts these PGN’s into NMEA 0183 sentences.


Adrena/NKE support
Adrena navigation software uses NKE proprietary sentences ($PNKEA…) to control the layout on NKE displays. These sentences contain so called Extended-ASCII characters like the degree-sign (°) which are not supported by the NMEA 0183 standard. These Extended ASCII characters are no longer blocked by the MiniPlex.
WiFi V4.75 for the MiniPlex-2Wi

This update addresses stability issues of the WiFi access point of the MiniPlex-2Wi. The required MiniPlex-2 firmware and update instructions are included in the package.
WiFi V1.4.0.0 for the MiniPlex-3Wi and MiniPlex-3W-N2K

This WiFi firmware supports both TCP and UDP protocols. Up to four devices can join the access point, which can all send and receive NMEA data using UDP simultaneously. One TCP connection is supported in addition to UDP.

The stability of WiFi connections is also improved. The required MiniPlex-3 firmware and update instructions are included in the package.

ShipModul Products can be seen at the following link: ShipModul Multplexers and Buffers.


LEDs can lose their brightness - From our Friends at Signal Mate

by Rich Jamieson

LED Navigation Lights

  • LEDs can lose their brightness.
  • May no longer be the nautical miles specified.
  • Look bright up close, but not from far away.
  • Sold as 3 nautical miles, but no longer meet USCG/IMO nautical miles requirements.

In order for High Brightness LEDs to last and work properly, they require constant current drivers, plus proper thermal management.

All of Signal Mate LED navigation lights have both.

Constant current drivers ensure a constant light output (proper candelas to maintain USCG/IMO nautical miles requirements) regardless of battery loads, or as the battery charge decreases.

A constant current driver varies the voltage across the electronic circuit in order to keep and maintain a constant electrical current. This makes sure that no matter the change in voltage, the current driven to the LEDs will remain at a steady, desired level.

With a constant current source, even as the voltage changes with loads or temperature the driver keeps the current steady while not over driving the LED and preventing thermal runaway which decreases the LED life and output.

Tri-Color & Anchor combination light - Signal Mate has four:

One for a 3 wire installation (model# TRIANC3).
One for a 2 wire installation (model# TRIANC2).
Both can come with a photo diode for auto on/off (model# TRIANC3P, TRIANC2P).
3 wire verses 2 wire installations: 
A 3 wire installation is used for replacing a 3 wire incandescent Tri Anchor when the wires are in good condition. The 3 wire requires two switches/breakers on the distribution panel.

Note: The 3 wire Tri-Color & Anchor light cannot be used on a 2 wire installation.

The 2 wire light is used when upgrading from an anchor light to a Tri-Color & Anchor when the wires are known to be in good condition. The 2 wire Tri-Color & Anchor light comes with a Double Pole, Double Throw (DPDT) center off reversing switch that will need to be installed.

Switch and Bracket included.

SignalMate Tip for the month

Navigation lights depend on good wiring.

When your mast is down, it is a good time to evaluate the wiring going up the mast. Wires degrade over time regardless of usage. Wires are subject to salt water, and movement which causes chafing.  Therefore, approximately every 10 to 15 years, it is recommend to replace the wiring.

Make sure your LED Navigation Lights are Signal Mate.  Look at and Purchase Here

ShipModul Released 3rd Generation ShipModul MiniPlex Multiplexers

by Rich Jamieson

ShipModul MiniPlex-3 Series

The MiniPlex-3 series is the third generation of ShipModul's industry standard NMEA 0183 multiplexers. All models have full galvanic isolation on all NMEA-0183 inputs and outputs. The MiniPlex-3 also connects directly to a Raymarine SeaTalk network and is capable of receiving and sending SeaTalk data. The MiniPlex-3 is available with and without a NMEA 2000 interface. (Currently, only conversion from SeaTalk1 to NMEA 0183 supported. Conversion from NMEA 0183 to SeaTalk1 will be available soon through a firmware update direct from ShipModul)

Models include:

Art.no. Model Computer interface NMEA 2000  
1131 MiniPlex-3USB USB    
1132 MiniPlex-3E Ethernet    
1133 MiniPlex-3Wi WiFi and USB   *
1135 MiniPlex-3USB-N2K USB Yes  
1136 MiniPlex-3E-N2K Ethernet Yes  
1137 MiniPlex-3Wi-N2K WiFi and USB Yes *


*) Available in Q1 2016

ShipModul has released new MiniPlex Firmware

by Rich Jamieson

Dear MiniPlex users,


ShipModul has released new MiniPlex firmware which contains some new features, bugfixes and better handling of communications with the Wifi interface.

MiniPlex firmware: V3.31.0
WiFi firmware: V4.41

WiFi firmware V4.41 is released again and together with MiniPlex firmware V3.31.0, all should be working ok now.

MiniPlex V3.31.0 firmware contains new features (see www.shipmodul.com/en/fw_changelog.html for details) as well as new settings for the WiFi interface. These settings ensure better handling when a WiFi connection is lost, allowing a device to reconnect immediately.
Also, the WiFi update process is improved.

The WiFi LED now follows the WiFi connection status again. When off, no WiFi connection is present in both access point and client mode.

It is important to install MiniPlex firmware V3.31.0 first before updating the WiFi firmware. If your WiFi firmware is already up-to-date (check version with PSMDWI,V command), you don't need to update it again, you only need to update the MiniPlex V3.31.0 firmware and issue a PSMDWI,A command to activeate the new settings.

Actisense Discontinues NBF-2 Buffer / Expander. Replaces with NBF-3 Buffer / Expander

by Rich Jamieson

Actisense has now discontinued the NBF-2 Buffer and now replaced it with the NBF-3 Buffer.  Click Here to see the details of the NBF-3.

ShipModul has released their first version MPX-Config V3.62.0 for Mac OS X.

by Rich Jamieson

MPX-Config V3.62.0 for Mac OS X is released. It can be downloaded from our web site or by clicking on the link below:

Download MPX-Config V3.62.0 for Mac OS X


Since this is the first release of the program, ShipModul strongly encourage you to send them bugreports.


Mobile browsing has a new look.

by Rich Jamieson

We recently upgraded Navstore.com with a new mobile browser interface. This should make access to our product quicker on mobile devices.  Click Here to see the mobile site on a desktop system.

New Web Site Up and Operating

by Rich Jamieson

Yes, NavStore has a new look.  We recently updated our web site.  The old one had done its job well, but was in need of a more capable replacment.  We hope you find the new site easier to use.