iAISTX, iAISTX Plus & AIT5000
29 Docs
Testing UDP and TCP connections with a Testing App
Last Updated: September 15, 2025To check the TCP and UDP connections with another App to rule out that there may be an issue with the Navionics Boating App, use this – TCP UDP Server & Client on the Play Store which is a really good test tool for Android…. https://play.google.com/store/apps/details?id=tcpudpserverclient.steffenrvs.tcpudpserverclient&hl=en_GB I setup a TCP Client and a UDP Server...
DSC and TX Warning Messages in proAIS2
Last Updated: September 15, 2025In the proAIS2 Diagnostics page, you will often see DSC and TX Attempt failed warnings displayed. These warnings are referring to normal AIS transponder behaviour and here is some more info on these messages… The RX 1 / RX 2 DSC start / Stop message is a completely normal message, indicating when one of the AIS receivers...
AIT5000 Voltage Problem
Last Updated: September 15, 2025A couple users have seen that the Supply Voltage on the Status Page is showing as around 8v but when they disconnect and test are getting 12v +. The Green Power LED is a very good indicator that the AIT5000 transponder is working correctly. The Status web page shows the default values and indicates that...
Why does my iPhone/iPad show “Weak Security” or no WiFi icon?
Last Updated: September 15, 2025The WiFi icon on the iPhone not showing is the wireless network you are connected to, does not have an internet connection. This is a fairly recent change. On earlier versions of iOS this icon was always displayed and shows a user if they are using WiFi or 4G connection for internet, which is an...
Can I use an external GPS antenna for my AIS Transponder, or do I have to use the supplied antenna?
Last Updated: September 15, 2025In the original International Product Specification for Class B AIS Transponders, it was dictated that they should be “stand alone” systems that did not require any input from other devices. For this reason, you will not find any AIS Class B transponders that can take their position input from an external NMEA 0183 or NMEA...
AIT2500/AIT5000 – Disable NMEA 2000 Heading Reception
Last Updated: September 15, 2025All Class B and Class B+ AIS transponders can transmit the True Heading of the vessel as part of the dynamic data they transmit to other vessels; MMSI Number, Position, COG, SOG, etc. If received most charting systems will plot the AIS target with both the COG and True Heading vector displayed, useful when the...
Red Status LED flashing on my AIS transponder
Last Updated: September 15, 2025A flashing RED Status LED indicates a high VSWR reading or potentially a Power Amplifier fault. For the flashing RED Status LED issue, with the 12v power turned off to the AIS Transponder, I would visually inspect the BNC antenna connector on the AIS and make sure there are no signs of connector damage. Then...
AIS is not displaying boats’ names
Last Updated: September 15, 2025When we get reports like this, it invariably turns out to be Chart Plotter or Application that has a problem – usually software related. The reason for this, is that AIS units do not differentiate between different types of AIS messages; either the regular dynamic ones that include the MMSI number and the position/course/speed of...
How to manually reset an AIT5000
Last Updated: September 15, 2025This reset procedure just resets the AIT5000 unit’s wireless interface and does not reset the MMSI number, which can only be carried out by an authorised dealer/distributor. With the AIT5000 unit fully powered up, locate the reset button, which is a small push button next to the wireless antenna. Press and hold this push button...
My AIS Transponder is not transmitting
Last Updated: October 30, 2025If you think that your AIS transponder is not transmitting your position then this procedure might help you. The first step is to check if your AIS transponder is actually transmitting. If you are then sure that your AIS transponder is not transmitting then the next part explains you the factors to check. 1 –...
Connecting FM Radio to the VHF Splitter
Last Updated: September 15, 2025A coax cable has an inner wire and then the braided shield and a quick and easy way is just to strip the cable back and solder or join using terminal block the Inner wire to the Orange wire and the Outer shield to the Green wire. However, if you want to make a...
I cannot display AIS targets
Last Updated: September 15, 2025If you encounter an issue with AIS showing on your display (navigation software or chart Plotter) then you should follow this procedure. 1 – Issue with a Chart Plotter/VHF Radio If you cannot display AIS targets on your Chart Plotter or VHF radio, then follow this: If you have connected your AIS to your...
I don’t have a good AIS range
Last Updated: September 15, 2025AIS Transmission/Reception depends on the AIS Class A Class B AIS transponder transmit at 2 watts whereas a Class A Transponder at 12.5 watts. The Class B+ SOTDMA transponder transmits at 5 watts. This difference in power has a huge impact on the transmission range of each transponder. For a Class B AIS transponder,...
I don’t receive NMEA data on an iPad/iPhone app
Last Updated: September 15, 2025If you don’t receive the NMEA data on your iPad or iPhone, then you must follow this procedure: 1- Close all apps in the background or restart your device. Always a good idea to shut down your iPad/iPhone device and then power it back up again, as this will close all background apps and ensure...
How to manually reset an iAISTX?
Last Updated: September 15, 2025This reset procedure just resets the iAISTX unit’s wireless interface and does not reset the MMSI number, which can only be carried out by an authorised dealer/distributor. To reset the iAIS TX, you must open the product case by removing the 4 screws from the unit. Once the screws have been removed, the base should...
Why my boat does not appear on MarineTraffic, VesselFinder, etc.?
Last Updated: September 15, 2025It is important for you to be aware of the limitations of these online sites. As a result, do not assume that you will always be picked up by them. Each of the different online services are only as good as their network of AIS receiving stations. In many cases, these shore stations are operated...
Which VHF antenna for an AIS?
Last Updated: September 15, 2025One of the most common questions we are asked by our AIS customers, is “what antenna should I use for my AIS ?”, so we thought we would post a short article to provide an answer on VHF Antenna Options for AIS. Basically there are two VHF antenna options for AIS; fit a second dedicated...
AIS + VHF Antenna Separation
Last Updated: September 15, 2025The AIS system works on two channels in the VHF frequency range and in order to receive or transmit AIS information it is necessary for the AIS unit to be connected to a VHF antenna. One option is to fit a VHF splitter such as our SPL2000, which allows both the VHF radio and the...
No GPS signal on an AIS Transponder due to loose FME connector
Last Updated: September 15, 2025Our AIS transponders are supplied with a GPS antenna that has a 10m cable terminated in an FME connector (right hand connector in the above image). These connectors are very slim, not much larger than the coax cable and are much easier to route through the boat. We also supply an FME to TNC adaptor...
How to change the MMSI number?
Last Updated: September 16, 2025Once entered and confirmed, the MMSI number on an AIS can only be changed by a technical dealer or by Digital Yacht. This is a government requirement in many countries to ensure the security of the AIS system. If you need your MMSI number reset or changed, we offer a reprogramming service. The cost for...
What is the WiFi range/coverage of my product?
Last Updated: September 15, 2025The Wi-Fi will typically footprint a boat up to 25m LOA. Contact us if you need a bigger footprint or have a steel or carbon vessel.
I have already a Wi-Fi router on board – can I join the product Wi-Fi to an existing network?
Last Updated: September 15, 2025Yes! You can program this through the web interface so you just have one Wi-Fi network on board with our product linked directly to your other Wi-Fi network as a client. This is explained in your product manual. This works well as well with Furuno WiFi radar installations.
How to configure a navigation app or software?
Last Updated: September 15, 2025We keep on our blog a list which explains how to configure all the popular navigation apps & software. This list explains how to configure a NMEA connection (UDP/TCP) on the app/software but also how to configure the AIS settings. To see the list, please click here.
How many devices can connect to the WiFi network?
Last Updated: September 15, 2025Up to 7 devices can connect using UDP. TCP/IP is a one to one connection format. PCs, MACs, Android, Linux and iPhone/iPad are all compatible.
What is the AIS transponder Wi-Fi network password?
Last Updated: December 18, 2025Our AIS transponders with a built-in web interface create a password protected WiFi network. With your tablet, PC or smartphone, if you scan for wireless networks, you should see a wireless network called “DY-AIS-xxxx” or “IAISTX-XXXX” where xxxx is a four-digit code unique to your AIS transponder. The name of the WiFi networks might change...
How to configure an AIS transponder with the web interface?
Last Updated: September 15, 2025In order to facilitate the use and configuration of our AIS transponders, our new AIS transponders now have a built-in web interface. This is the case for the iAISTX, iAISTX Plus and AIT5000 (since March 2020). These devices create a WiFi network on board and configure themselves by connecting to WiFi. The configuration of the transponder can therefore be done...
AIT2500/AIT5000 – Disable NMEA 2000 GNSS PGNs
Last Updated: September 15, 2025If you need to disable the GNSS PGNs that the AIT2500/AIT5000 outputs then this is the procedure to follow…. Using the proAIS2 software, go to the Serial Data tab and then copy and paste the following commands in to the box at the bottom of the page and click the “Send” button (see image below)....
How to install the AIT5000?
Last Updated: September 15, 2025This video will show you how to install our AIT5000 Class B+ AIS Transponder for NMEA 0183 & NMEA 2000 based systems. To configure the AIT5000, you need to configure the AIT5000 with its built-in web interface.
How do you use external batteries for the Nomad 2
Last Updated: February 3, 2026The Nomad 2 does only have a 12v cigarette lighter plug type connection. There are battery packs that have a suitable socket, like this unit on Amazon: https://www.amazon.com/Portable-Charger-Cigarette-23400mAh-External/dp/B08JGDGYJY