digital yacht ait5000

“The AIT5000 is a Class B+ AIS Transponder with a 5W power output, a Wi-Fi interface, a built-in VHF splitter and utilises SOTDMA format transmissions.”

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Description

Why does it show weak security / no wifi icon.

The 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 important thing to know.

Most users will be connected to normal home or office wireless networks that have an internet connection. Only a small percentage of iPhone users will have an iAISTX or similar wireless device that does not have internet connection, so having a feature for the majority won the day.

The weak security message is also a recent change, as Apple are pushing all of their users to move to the latest and most secure WPA3 security. The reality is that WPA2 is still very secure and still used on the majority of wireless networks, so it is nothing to be worried about. Even if a hacker did manage to crack your iAISTX, all they would gain is the location of all the AIS equipped vessels around you – not any sensitive banking or personal info.

Can I use an external GPS for the iAISTX/PL & AIT5000 Transponder or do I have to use the supplied antenna?

In 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 2000 GPS sensor.

I am afraid that you will need to use the supplied GPS antenna with your iAISTX, but if your boat has a GRP hull, then you might be able to install the GPS antenna inside the hull and not go to all the trouble of routing it externally. Just find a suitable location and use the GPS signal strength display on the iAISTX’s web interface to check that you are getting good reception, before finally bolting it down.

AIT2500/AIT5000 Disable NMEA 2000 Heading Reception

All 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 vessel is stationary and COG becomes unstable/inaccurate.

Our AIT2500 and AIT5000 units can receive the True Heading (HDT or THS sentences) data via their Low Speed NMEA 0183 Input (Yellow+ and Green- wires) or via PGN#127250 Vessel Heading on NMEA 2000.

However, not all NMEA 2000 systems will transmit True Heading and in some cases they transmit a wrong value or just a fixed 000º. This results in the AIS target being plotted with a very strange heading vector or the boat appearing to be moving side-ways or backwards.

If this happens and you cannot correct or suppress the True Heading value on the NMEA 2000 network, then you can stop the AIT2500/AIT5000 from receiving True Heading over NMEA 2000, by following the procedure below….

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).

• To stop reception of True Heading data over NMEA 2000 send this command: $PSMT,0,3,0x2C75B2FA,1,n2kignss 0,0*13  
• To enable it again send this command: $PSMT,0,3,0x2C75B2FA,1,n2kignss 1,0*12  

….if the command was successfully received and actioned, you should see Transponder respond with…

• $PSMT,255……….etc .     (basically, the same as the command but 255 instead of 0 after the $PSMT, text)

AIS Transponder Status light flashing red

A 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 connect up whichever VHF antenna you have the most confidence in. Now power ON the AIS Transponder and immediately join its wireless network and bring up the web interface before the unit has got a GPS position fix and tried to transmit or use ProAIS2 if your AIS transponder don’t have a web interface.

Now watch the VSWR reading and see what value is displayed after the first couple of transmissions. If it is greater than 5:1, then it has a high VSWR and will soon start to flash the RED Status LED.

The most common cause is the VHF antenna and connections, but if you are confident that they are all fine, then it must be the unit itself and we will need to get it back for warranty repair.

AIS is not displaying names

When 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 the vessel or the more infrequently transmitted static ones that include the MMSI number, name, dimensions, boat type, etc. and in the case of Class A vessels the voyage data that includes navigation state, destination, ETA, etc.

An AIS unit either receives all of the messages or none. In theory, if the AIS was getting poor reception and missing some messages then because a boat might send 10 dynamic messages for every 1 static message, you are more likely to see the boat without the static data, but it would be random and some boats would have their names. The application only needs to receive the static data once for a target, and then it is in its temporary AIS database for the duration that the application is running.

As I mentioned, the Chart Plotter or Application maintains its own AIS database where it ties together the MMSI numbers in the dynamic and static messages and builds up an AIS target list where every boat should (within 6 minutes) have a name, dimensions, boat type, etc.

The static messages are longer than the dynamic ones and might be split across a couple of UDP network packets. You could try setting the iAISTX to operate in TCP mode and then setup a new Device on the Navionics App; TCP mode, Host = 192.168.1.1 and Port = 2000.

TCP mode is a guaranteed delivery protocol with error checking, packet sorting and re-transmit functionality, that ensures all network packets are always fully received. The downside, is that it is a one device protocol so you cannot have more than one device receiving the data at a time.

How to manually reset an AIT5000

This 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 for > 10 seconds (recommend 15 seconds to be sure).

When you release, you should see the Wi-Fi and Data LEDs change flashing sequence slightly as the unit resets and reboots.

Once the AIT5000 has rebooted, all of the wireless and web settings will be back to the factory defaults – as detailed in the user manual.

You should now be able to see the AIT5000-xxxx wireless network again. Try to get one of your devices to connect and stay connected to the AIT5000 Wi-Fi connection.

My AIS Transponder is not transmitting

If 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 – Check if your AIS is transmitting or not

With proais2 or iaistx/ait5000 web interface.

Using the proAIS2 configuration software or the iAISTX/AIT5000 web interface allows you to see if the GPS position is OK. You can monitor the AIS reception of other vessels. As well as ensure that there are no errors or alarms. However, if you are new to AIS, there is always that nagging doubt as to whether other vessels are seeing you.

Check with a local AIS Receiver/Transponder

The best test of a Class B transponder is to ask someone else in your marina, who has AIS, to check that they are receiving you on their system. If your vessel is stationary, then a transponder will only transmit every 3 minutes. This increases to every 30 seconds when your speed over the ground (SOG) is greater than 2 knots. Therefore, do allow some time for them to detect you. Also when they first receive your transmission, the only data they will see is your position, speed, course and MMSI number. It can take up to 6 minutes to receive your “Static Data” (boat name, call sign, vessel type, dimensions, etc.). This is normal and is the way the AIS system regulates the amount of data being transmitted.

Check with MarineTraffic, Vessel Finders, etc.

The other increasingly common method of testing an AIS transponder is to look on one of the online “live” AIS websites and the most popular of the free services is MarineTraffic.com

However, it 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 enthusiasts/volunteers operate these. In some areas the coverage is great but there are definitely “holes” in coverage.

2 – Find out the reasons why your AIS is not transmitting

If you are now sure that your AIS transponder is not transmitting then you should follow the following steps.

You must use ProAIS2 for your AIT1500, AIT2000, AIT2500, AIT3000 or Nomad. However, for the iAISTX, iAISTX Plus or AIT5000, you must use the built-in web interface.

With proAIS2’s diagnostics tab or the iAISTX/AIT5000 web interface, you can check if an AIS transponder has an issue or not.

A- Check if your AIS receives a good GPS position.

Without a good GPS fix, an AIS transponder cannot transmit correctly your position. By going to the GPS Status tab in ProAIS2, you can see the GPS reception. If you have one of our AIS transponder with built-in GPS antenna, then you should consider installing a GPS booster (for more information, click here ).

If you have an external GPS antenna then make sure that the connectors are correctly tight and also that the antenna is outside and has a clear view over the sky.

B- Check the VHF antenna

In the Diagnostics Tab in ProAIS2 or within the iAISTX/AIT5000 web interface, you can see the VSWR ratio. The VSWR ratio is explained in the FAQs. If your VSWR ratio is above 3, then you must check the VHF antenna connectors and the cable.

If possible, use another VHF aerial to check if the AIS transmits better.

C – Check that all the data have been entered

In the Configuration Tab in ProAIS2, you must make sure that all the boat details have been added (MMSI, VHF Call Sign, Name, Dimensions, etc.)

You can send us via email a screenshot of the ProAIS2 diagnostics tab or your iAISTX/AIT5000 web interface, we will then let you know whether the product works well or not.

Connecting FM Radio to the VHF Splitter

A 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 nicer, more robust solution, you could get one of these…

https://www.adafruit.com/product/2889

and one of these…

https://www.mouser.com/ProductDetail/AIM-Cambridge-Cinch-Connectivity-Solutions/CPMC-88-1?qs=atelM%2FHH1ECgOOZ43uoOSg%3D%3D

Then the Orange wire would go in the + screw terminal and the Green in the – screw terminal. The BNC connector would be crimped on to the coax cable and you end up with a much more longer lasting connection.

I cannot display AIS targets

If 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 Chart Plotter/VHF Radio via NMEA 0183 wires , then you must make sure that you have used the NMEA 0183 38400 baud wires (Orange + & Brown – for Digital Yacht AIS Transponders). The second step is to check your Chart Plotter / VHF Radio settings. The best solution here is to check your product manual but you must make sure that the NMEA 0183 port is set at 38400 baud and also that AIS targets are activated.
• If you have connected your AIS to your Chart Plotter/VHF Radio via NMEA 2000 , then you must make sure that the NMEA 2000 network is working properly. This page might answer to your question. You should also make sure that AIS targets are activated in your chart plotter / VHF radio settings.

2 – Issue with a Navigation Software / App

If you cannot display AIS targets on your navigation software or app then follow this:

• For an Android/iOS app : The first step is to make sure that all apps are closed in the background, then you are connected to the product WiFi network. The second step is to configure your navigation app. This is explained in this page.
• For a PC Navigation Software: The first step is to make sure that the USB drivers are installed. You can download them here if needed. You must then find out the port COM allocated to your USB port. The last step is to configure your navigation software. This is explained in this page.

I don’t have a good AIS range

Ais 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, the transmission range is usually 5 to 7 miles in perfect conditions. This means using a good VHF antenna, placed as high as possible and clear of other antennas. The cables and connectors must also be in good conditions. For a Class B+ 5W SOTDMA, it typically transmits at up to 15 miles.
• However, for the AIS reception, a Class B/Class B+ transponders can receive Class A AIS at up to 30 miles.

If you don’t have a good range

• If you are using a VHF antenna splitter for your transponder, make sure it is a ZeroLoss VHF Splitter like our SPL1500, SPL2000. You must also check the connectors and the cables between the VHF splitter and the AIS.
• If you are using a dedicated VHF antenna for your transponder, then make sure that it is at least 2 meters away from other VHF antennas. Also, you must check the VHF antenna, its cable and connectors.

If you don’t have a good range, we suggest you testing with another VHF aerial to check if you have a better range.

I don’t receive NMEA data on an iPad/iPhone app

If 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 all of the right services are running. For more information: https://digitalyacht.net/2018/07/27/background-apps-stopping-wireless-nmea-transmission/ 

2- Local Network Settings

If you are using iOS 14 or higher, make sure the “Local Network” privacy settings are enabled for the app they want to use….

Go to Settings>Privacy>Local Network and make sure that the App is in the list and enabled….

3 – UDP or TCP?

Check what mode/protocol our product is set to, TCP or UDP (check product manual) and ensure that you set the same type of connection in the App. If the device is set to UDP and you try to use TCP in the App it will not work, both the device and app must be set to the same mode/protocol TCP or UDP. For TCP connections you need to enter an IP address of 192.168.1.1 and Port 2000, while for UDP you need to enter 0.0.0.0 and Port 2000, or if this fails try 192.168.1.1

4- App configured?

You must make sure that your app is configured. You should look at our section How to Configure Apps & Software to find out how to configure your navigation app.

5- GPS Settings

If you want the app to use the GPS data from the wireless connection, then go to Settings>Privacy>Location Services, on your iOS device and set the App to “Never” which will force the App to use the GPS position from the wireless connection, rather than try and use its internal GPS or even worse “Assisted GPS” if it is a Wi-Fi Only iPad.

How to manually reset an iAISTX?

This 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 be carefully disengaged from the top of the case using a small flat blade screwdriver.

There are interconnecting cables between the top and bottom of the case, so take care not to separate the two parts completely.

There is only one PCB inside and the PCB diagram is shown below with the JP1 connector that you need to short in red…

With the unit’s 12/24v DC power on, short the two pins of JP1 for at least 10 seconds (allow 15 seconds to be sure).

Once the iAISTX has rebooted, all of the wireless and web settings will be back to the factory defaults – as detailed in the user manual.

You should now be able to see the iAISTX-xxxx wireless network again. Try to get one of your devices to connect and stay connected to the iAISTX Wi-Fi connection.

Why my boat does not appear on MarineTraffic, VesselFinder, etc.?

• It 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 by AIS enthusiasts/volunteers who have a home/office by the sea. In many areas the coverage is great but there are definitely “holes” in coverage.
• One of the good features of the Marine Traffic service, is that you can display the locations of the receiving stations and see if they are currently online or offline. From the Marine Traffic home page, zoom in to your location on the map. Then on the left hand side of the screen, click on the “Layers” icon. This will show a series of tick boxes to display different layers of data will appear. Click the “Stations” tick box and you will see a series of Antenna type icons on the map; green if they are online (receiving data), red if they are offline and orange if they are online but giving poor reception performance.
• In the image below, you can see the the UK port of Exmouth. If you were testing your Class B transponder here today, then you would think you were not transmitting. Just one receiving station being offline can create a big hole in coverage and the next receiving station going East is Bridport around 35 miles away. This is a popular section of water and yet you can only see a few vessels between Torquay and Lyme Regis.

• A Class B transponder transmits at 2 Watts (about a third of the power of a hand held VHF). Therefore even in perfect line of sight conditions, the best range you can expect is about 8NM. It is important to check if there is a receiving station within 5-8NM of your location and if there are any other Class B vessels displayed near you.
• If you are more than 5-8NM from the receiving station or there is not a good clear line of sight between the station and your location, then your transmission is unlikely to be received.
• You should note that Commercial vessels and some larger pleasure craft have Class A Transponders. These transmit at 12.5 Watts and have a much greater transmit range 20-25NM. As a result, these vessels may be displayed near your location, even if your Class B transmission is not received.
• Finally, it can take an hour or so for a new AIS (MMSI number) to be recognised and stored in the database of these online services. Consequently, if you are confident that you are in range of an online receiving station, leave your transponder on for a few hours. This will give the online service time to detect and record you in their database.

ADDITIONAL NOTE

Another nice feature of Marine Traffic, is that you can drill down in to the details of a particular receiving station. Click on the icon of the Station of interest and a summary of the receiving Station’s information will be displayed. By clicking the Green “Details and Statistics” button, you can get a wealth of information about the station, its statistics and “live” AIS target reception list.

• As you can see, this particular station in Exmouth is regularly offline for quite long periods. Even when it is online, it has a rather poor 10NM reception range.
• For anyone that lives or has a business close to the sea and who would like to be part of an online AIS network, please contact us about our AISNet product, which can connect to your home/office network and put your local AIS reception data online.

Which VHF antenna for an AIS?

One 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 VHF antenna a suitable distance from the vessels main VHF antenna. Or alternatively, use the main antenna for both VHF and AIS by fitting a special device called a “Splitter”.

Generally our recommendation for yacht owners who want to fit an AIS, is to use a “Zero Loss” splitter like our SPL2000. By utilising the main VHF antenna at the top of the mast, you will definitely get maximum transmit range. Plus the ease of installation often makes it a cheaper option than paying for a second antenna to be installed.

However, for power boaters who do not benefit from the height advantage of using the main antenna at the top of the mast. As well as for AIS receiver owners where the splitter can often cost more than the AIS receiver itself. It is often desirable to fit a second VHF antenna. This is particularly apparent if you intend to save money by doing the antenna installation yourself.

AIS operates on two dedicated channels within the marine VHF frequency range – 156.0 to 162.025 MHz. The two AIS channels are at the top end of this range namely; 161.975 and 162.025 MHz (channels 87B and 88B). Most VHF antennas are designed to give maximum gain across the whole VHF frequency range centred on Channel 16 (156.8 MHz).

Pretty much all of the antenna manufacturers now produce “AIS Tuned” antennas. These have their centre frequency shifted from Channel 16 to 162Mhz (exactly half way between the two AIS frequencies). If you choose to mount your AIS antenna on the stern rail of a yacht or radar arch of a power boat. Then using an “AIS tuned” antenna is a good idea. This will allow you to get an extra bit of gain. Thus compensating for the antenna being effectively at deck level.

The graph above shows how the tuning of the antenna to 162MHz gives it an extra boost in VSWR (gain) across the two AIS frequencies.

Which ever option you choose, having AIS on your boat will without doubt make your sailing experiences safer. As well as less stressful in poor visibility or when crossing busy shipping lanes. Even a simple receiver with a small whip antenna at deck level is effective. Allowing you to keep informed of what ships are around and which ones you need to keep an eye on.

AIS + VHF Antenna Separation

The 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 AIS to use the boat’s main VHF antenna. The other option is to fit a second VHF antenna which is then just connected to the AIS.

Any VHF antenna can be used, although some antennas are “AIS tuned” to get maximum gain on the two AIS channels and also have a BNC type connector fitted (common on AIS units), rather than the traditional PL259 VHF connector.

If you decide to fit an additional VHF antenna for the AIS, you want to mount it as high as possible but you should be aware that it cannot be mounted right next to the existing VHF antenna and a certain amount of separation must be maintained to avoid the 25 watts of transmit power from your VHF radio going straight in to the AIS receiver circuitry, potentially damaging it. The diagram below shows the recommended minimum separation of the antennas.

No GPS on Transponder due to loose FME connector

Our 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 for connecting the cable to the transponder (left hand connector in the above image).

Today we were reminded of the importance of ensuring this adaptor is firmly screwed on to the cable, when a US customer reported that their AIT2000 had stopped getting a GPS fix. After using the proAIS2 software to confirm that the GPS signals were very low, we asked the customer to check the GPS antenna connections to the AIT2000 and sure enough found that the FME connector had become loose and was no longer making a good connection.

A quick tighten of the FME connector in to the adaptor and the AIT2000 started to get a GPS fix again and the customer could continue their cruise.

The nut on the FME connector is 8mm (AF) and the TNC adaptor has two flat indents that are 9.5mm (AF). You can tighten the two connectors quite tightly but avoid using too much force which could damage the connector and cause a different set of problems. The image below shows the FME fully tightened in to the adaptor and there should be about a 1.5mm gap between the FME nut and the collar of the adaptor when properly tightened.

Our GV30 combo GPS and VHF antenna also uses FME connectors and is supplied with a TNC and BNC adaptor, which should also be tightened in the same way.

What’s the VSWR?

Checking the VHF/AIS Antenna, is the most difficult test. As a result, it is the one that we get the most technical support calls about. Therefore, we thought a blog post on the subject would help.

It is surprisingly common for yacht owners to install an AIS transponder with an antenna splitter and then find that their “old faithful” VHF antenna at the top of the mast is actually not as good as they thought it was. The reason for this, is that the top of the mast is a pretty hostile place. Over time, the antenna will suffer high levels of salt water and UV exposure, coupled with large temperature swings, vibration, G forces, etc. All of which start to degrade the materials and cabling. Alongside the occasional stepping of the mast, with possibly a through-deck connection or cable join inside the hull. You can see that there are lots of possibilities for the antenna to not be in tip-top condition.

All AIS transponders perform a continuous series of self tests, including a VHF antenna test. This is often the first time, in many years, that the VHF antenna at the top of the mast has been tested. Therefore, it is not unusual for some to fail the test. The reality is, that a VHF radio or AIS will happily get some level of reception even if you just connect a wire to it. As a result, you can appear to be receiving AIS data but your transmission is poor. This is due to an old/degraded VHF antenna that has a high Voltage Standing Wave Ratio (VSWR).

The VSWR of an AIS transponder, is a measure of the level of standing waves present in the antenna cable (feeder). Standing waves are the signals/power that do not radiate in to the air, by the antenna (load), but reflect back down the cable to the transponder (source). In an ideal world, all of the power sent to the antenna would transmit through the air to other vessels. However, this only happens if the impedance (AC resistance) of the source, feeder and load are identical (50 ohms).

This perfect matching of the impedances would result in a VSWR of 1:1. Although in “real life” pleasure boat installations, it is more likely to be between 1.1:1 and 2.5:1. In the diagnostic page of our proAIS2 software, the  you can see the VSWR and will update upon every transponder transmission. By keeping an eye on the Transmit Counter you can see when a transmission takes place. You will probably see a slight change (in the decimals) each time the VSWR is measured, which is normal. If you see a bigger fluctuation, this is indicative of a poor connection or water ingress in the antenna cable/connections.

If the measured VSWR goes above 5:1, the RED Status LED will illuminate and a VSWR alarm displayed in proAIS2 (see top image).

Understanding the importance of having a good VHF antenna, with a low VSWR to get the best possible AIS transponder performance (transmit range) is key. We hope this article helps our customers have a better appreciation of this technology.

How to change the MMSI number?

Once entered and confirmed, the MMSI number can only be changed by a technical dealer or by Digital Yacht. If you need your number reset or changed, it is recommended that you contact your local installer or Digital Yacht.

If you are a dealer/installer and would like to reset an MMSI, please contact us.

What is the wireless interface range?

The 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?

Yes! 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?

We 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?

Up 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?

Our 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 according to the product version.

Make your device join this network and you will be asked to enter a password which is “PASS-xxxx” where xxxx is the same four-digit code as in your network name. You can change both the network name and password in the AIS transponder unit’s web interface.

For instance, if you have an AIT5000 and the WiFi network name created is DY-AIS-D4B7 then the WiFi network password is: PASS-D4B7

How to configure the AIS transponder with the web interface?

In 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 through a computer, a tablet or even a smartphone and most importantly, no software is required. Our other transponders can only be configured through a computer by connecting the USB and downloading a specific software (ProAIS2).

After installing and powering the device, here is the procedure to configure the AIS transponder through the web interface. The screenshots below use our old built-in web interface version.

1 – How to access the web interface

You need to connect to the WiFi network created by the AIS transponder (network name: DY-AIS-xxxx) . If the WiFi network has a password, then the password is: PASS-xxxx (xxxx is a 4-digit code unique to your device and is the same as the 4 digits on the WiFi network name).

Then, open a web browser (Safari, Chrome, Firefox, Edge, etc.) and either enter the IP address of the transpondeur…

http://192.168.1.1

…or if your device supports Bonjour/mDNS you can enter the following URL…

http://dy-ais.local

2 – Vessel details

This is the section in which you enter the MMSI and Static data to program the transpondeur. The MMSI number can only be programmed once, so particular care should be taken to check that it is correctly typed in. All other data can be changed at any time. You need to enter your boat dimensions and an approximative location of the GNSS antenna.

Once you are happy that all your boat’s static data has been entered correctly, remembering to double check the MMSI number, click the “Update Vessel Details” button and the details will be stored in the AIS unit.

3 – Vessel details

By default, the AIS transponder is in “Access Point” mode, that means it creates its own password protected wireless network and automatically provides network settings to any device that connects to it (via DHCP). You can change the default network name and password, if required, and the wireless channel that the unit uses (Channel 1 by default). For the rest of the network settings, we recommend that you do not change anything.

If you want to merge the AIS’s WiFi to an existing WiFi network on board, please read the unit manual.

Once everything is configured for the network settings, click on “Update Settings” button and the unit will save the new settings and restart (it takes about 30 sec).

4 – AIS Status and Silent Mode

If you want to merge the AIS’s WiFi to an existing WiFi network on board, please read the unit manual which you can  download from here.

5 – View NMEA data and product firmware

Thanks to the web interface, you can also display the NMEA 0183 frames broadcast by the WiFi of the AIS transponder. You have to click on the “View data” button at the top of the web interface. If you have connected instruments to the NMEA 0183 input of the AIT5000, you will also be able to see the data of these instruments in this page.

At the bottom of the web interface, you can update the product when an update is available. Simply select the file in your computer or tablet with “Choose File” and then click on “Upload Firmware”.

AIT2500/AIT5000 – Disable NMEA 2000 GNSS PGNs

If you need to disable the GNSS PGNs that the AIT2500/AIT5000 outputs then this is the procedure to follow….

• To disable GPS data output over NMEA 2000 send this command: $PSMT,0,3,0x2C75B2FA,1,n2kognss 0,0*15
• To enable it again send this command: $PSMT,0,3,0x2C75B2FA,1,n2kognss -1,0*39

How to install the AIT5000?

This 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.

AIT5000 Quick Start Manual V2.00

• GPS Antenna and 10m cable
• 3dBi WiFi Antenna
• PL259 patch cable for VHF
• 0.8m NMEA 2000 drop cable (male)
• 0.8m NMEA 0183 & Power cable
• 0.8m USB cable

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Digital Yacht AIT5000 Class B+ 5W Transponder w/Splitter & WiFi

**As the FCC requires all units sold in the US to be programmed by a qualified technician. Please submit the form below for programming at time of purchase. A copy of the MMSI registration or FCC Ship Station License is required along with the vessel master or owner's signature on the completed programming form.**

Click here to download form .

AIT5000 Class B+ 5W Transponder with Splitter & WiFi

The AIT5000 is a Class B+ AIS Transponder with a 5W power output, a Wi-Fi interface, a built-in VHF splitter and utilises SOTDMA format transmissions.

Digital Yacht have introduced a new range of Class B+ AIS transponders. Class B+, a new standard, utilises SOTDMA format transmissions which offer a 5W power output (2.5x more powerful than a regular Class B), a guaranteed time slot for transmission in busy traffic areas and faster update rates depending upon the speed of the vessel. It’s ideal for ocean sailors requiring the best possible performance and future proof satellite tracking applications, fast power boats and smaller non-mandated commercial vessels. It still inter-operates with existing Class B and Class A systems.

The AIT5000 incorporates a patented ZeroLoss VHF-AIS antenna splitter allowing the main VHF antenna to be shared with VHF, AIS and FM radio. It also has a wireless interface for connecting to iPads, smartphones and tablets.

The AIS transmissions can be stopped with our AISConfig app and with a remote silence switch.

The AIT5000 the option of an AIS SART alarm which is great for use with personal AIS MOB devices. Now works with the popular Navionics Boating App for Apple iOS and Android to display GPS and AIS data on your Navionics charts.

• Class B+ 5W transponder with GPS/GLONASS positioning
• Integrated and patented ZeroLoss VHF-AIS antenna splitter (share the VHF antenna)
• Multiple NMEA 0183 in/out and multiplex capability
• NMEA 2000 connectivity
• USB connectivity for PC/MAC
• Wireless interface for tablets, smartphones and PC
• Remote TX silence switch option
• Supplied with GPS antenna
• The AIS all-in-one Nucleus solution
• Alarm option too with AISLifeGuard

Class B+ is a new generation of AIS functionality based on SOTDMA (self organised TMDA) messaging rather than the simpler CSTDMA (carrier sense TDMA).  It guarantees your AIS transmission will get a time slot, even in areas of very high traffic density.  It also specifies a 5W transmission power (compared with 2W for Class B) and a transmission rate that increases as the vessel moves faster.  With regular Class B protocol, the transmission rate is fixed at every 30 seconds when the vessel is moving. It is ideal for ocean sailors requiring the best possible performance and future proof satellite tracking applications, fast power boats and smaller non-mandated commercial vessels. Please click here if you want to learn more about Class B+.

Canadian orders please add an additional 14 business days for processing and shipping. Alaska and Hawaii orders please add 1 additional warehouse processing day.

Click here to see our Standard Shipping Policy

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AIT5000 – Class B+ AIS Transponder with Wi-Fi, NMEA & VHF Splitter

“The AIT5000 is a Class B+ AIS Transponder with a 5W power output, a Wi-Fi interface, a built-in VHF splitter and utilises SOTDMA format transmissions.”

AIS Transponder with Alarms, VHF Splitter, WiFi & NMEA2000

“The perfect all-into-one pack to receive AIS and to transmit your position as well as streaming wirelessly all your navigation data on navigation apps & software. This pack also includes AIS alarms and a ZeroLoss VHF splitter.”

Furuno Radar & AIS Transponder with VHF Splitter & WiFi

“This pack includes the Furuno DRS4W Radar WiFi with AIT5000 Class B+ AIS Transponder for iPad Navigation Bundle.”

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The Successors of St. Stephen of Perm

In memory of three holy hierarchs of perm.

Maria Marchenko

Here I am, O Lord, send me. Here I am, O God, in good time. And I shall glorify Thy Name, Here I am, O Lord, here I am.

Though the rays of Christ’s light did struggle through into the depths of the pagan forest, there were still many villages that, as before, had not yet heard the Gospel. Now, after the death of St. Stephen whom they hated, the pagan priests who were scattered across the Urals and had seemingly lost ground, hoped to get even with the newly-established Church of Perm. Among their plans were to bring their former flock back to the old beliefs, destroy the altars erected by St. Stephen, and resume their economic exploitation of the peace-loving Zyryans [“Zyryane”: the old-fashioned Russian name for the Komi—the people of what is now the Komi Autonomous Republic, belonging to the Finno-Ugric family.—Trans.]. Most of the shaman priests came from the Vogul people [“Voguly”: the obsolete name of the Mansi—the indigenous people living mainly in the Ob River basin in Western Siberia and related to the Finno-Ugric family; now most of them live in the Khanty-Mansi autonomous area within Russia’s Tyumen region.—Trans.] who converted to Orthodoxy very reluctantly.

The new diocese’s link to the Moscow Metropolis seemed (and was in many respects) nominal and illusory; in the late fourteenth century it was still extremely far from there to the Grand Prince (and the Metropolitan) of Moscow. The defenselessness of local clerics in the face of a hostile and often aggressive population frightened the newly-arrived priests and jeopardized the clergy who were Zyryan converts. Moreover, the new diocese needed not just priests but missionaries who were ready to put their lives at risk in open conflicts with the rebellious Ostyaks (the Khanty and the Mansi). It needed monks who were not bound to their families and children. This caused a shortage of clergy.

Another threat came from local government officials ( zemsky dyaks ) who as secular masters were gradually taking over the authority of bishops who governed the huge territory. This territory fell under the patronage of the Grand Prince of Moscow primarily under the auspices of the religious solidarity of Moscow and the newly-converted people of Perm, but the laws of the development of Muscovy demanded rendering to Caesar the things that are Caesar's, and sometimes these demands took cruel and even bloodthirsty forms.

The Archbishopric of Novgorod was indignant with Moscow, believing that the self-seeking Muscovites had lawlessly appropriated the territories that had belonged to the See of Novgorod from time immemorial 1 . Thus, some dishonest Church figures from among the ambitious lobbyists for Novgorod imperialism were ready to help the pagans who resisted the Muscovite expansion.

Thus St. Stephen’s work was threatened with serious danger. However, leaving the people of Perm physically, the holy hierarch had promised to remain with the Zyryans spiritually after his repose, provided they remain faithful Orthodoxy and keep their love for it. That is why after his repose, missionary work in his diocese was continued by three worthy successors: Sts. Gerasim, Pitirim and Jonah.

But Isaac, St. Stephen’s immediate successor in the diocese of Ust-Vym 2 , spent most his archpastoral ministry in Moscow, because being close to senior representatives of the Church hierarchy was his top priority as a hierarch. It is unknown whether his intercessions with the Metropolitan for the newly-converted Zyryans were successful; but what is known is that the name of Isaac was all but forgotten in the annals of Perm history, and his memory was almost erased and replaced by his immediate successors’ missionary exploits; because they preferred to share in the sorrows and joys of their flock in situ rather than send them exhortations from faraway Moscow.

St. Gerasim, the betrayed and murdered bishop

St. Gerasim’s self-sacrificing missionary endeavors, along with his consistent and energetic policy in the administrative sphere not only set the region’s development on the most progressive path but also provoked the envy of the less talented or charismatic functionaries of the state machine. The latter, wishing to get even with St. Gerasim who, in their view, exceeded his authority, decided to make use of the Vogul people’s deadly hatred for him. Officially, the local government officials who acted in collusion were right—St. Gerasim organized “groundwork at the bishop’s residence for the construction of a church” and entered into “conflict with the prince’s administration over disputed land ownership.” 5 In all probability, the bishop wanted to expand his estate (the bishop’s settlement [ vladychny gorodok .—Auth.] on the territory of which a bishop was equal to a feudal lord) without the secular authorities’ permission and get a part of the population involved in the work (compulsory but made to appear voluntary) on renovating a dilapidated church in Ust-Vym.

What made St. Gerasim firmly demand obedience to himself of the Prince of Moscow’s subjects in matters that were subject to Church jurisdiction? The fact is that the holy bishop presumed “in all fairness” Moscow government officials’ progress, along with cultural development and improvement in living conditions of inhabitants of humble Zyryan villages were the direct and immediate result of the success of Orthodox mission; and, therefore, there was nothing more important both for Moscow functionaries and local pastors than expanding the territory around the bishop’s residence and repairing the crumbling church.

But St. Gerasim’s opponents thought otherwise. Through slander they made a member of his household, a baptized Vogul, begin to hate him, and persuaded the man to murder the bishop for patriotic reasons, standing up for his people whom St. Gerasim supposedly persecuted. The most cynical thing about this treacherous murder was that it was committed by someone whom the saint had once taken into his home for care and for spiritual guidance. According to St. Gerasim’s plan, this Vogul would have eventually become a pastor and a missionary among his fellow-tribesmen.

On that fateful day, during a prayer service, the madman waited until St. German turned his back, grabbed his omophorion and strangled him with it. This is how the Vychegda-Vym Chronicle, written by the clergy of the Ust-Vym Monastery of the Archangel Michael in the late sixteenth century, recounts his tragic murder: “Bishop Gerasim of Perm has been murdered several stadia [an ancient measure of length, about 185 meters.—Trans.] from the bishop’s settlement, in the place called Mys 6 .”

St. Pitirim the Martyr

Chudov Monastery was known as the royal monastery, and its abbot would become a close advisor to the Grand Prince of Moscow. As abbot of Chudov Monastery St. Pitirim may have baptized the future Grand Prince Ivan III of Russia (1462—1505) in infancy, and after the news of the martyrdom of St. Gerasim of Ust-Vym had reached Moscow, the Metropolitan chose him as candidate, not without the influence of, or rather, on the initiative of the Grand Prince. St. Pitirim must have been shocked by St. Gerasim’s martyrdom; there was invisible warfare on the metropolia’s eastern frontiers, and representatives of the senior Moscow clergy were becoming its victims. By that time the fratricidal war between Princes Vasily II the Blind and appanage Prince Dmitry Shemyaka was already raging in Rus’. Its battlefront was precisely in Perm, and the bishopric couldn’t avoid “hostilities”. The future holy hierarch willy-nilly had to engage in bigtime politics. Well aware of this, he consciously and readily took the bishop’s duties on himself with humility and made his way to St. Gerasim’s bereaved flock.

In those first months, scrupulous analytical work to determine the strategy for future missionary work was carried out in the bishop’s office, St. Pitirim’s desk was covered with maps that he and his companions had drawn and marked. Long-time residents of the bishop’s quarters from among the clergy who had concelebrated with St. Gerasim reported to St. Pitirim what, when and how the people of Perm had been evangelized, in which districts of the region the inhabitants were the least enlightened by the missions of Sts. Stephen, Gerasim and their disciples, and where the pagan high priests whom St. Gerasim exposed had fled. It was finally decided to start a missionary campaign in the area of the Vashka basin, settled by the Udoren people. It was there, in the area called Udora, that the bastion of paganism (contemporary to St. Pitirim) was concentrated; it was there that the spiritual leaders of idol-worship and their followers had settled after being banished by St. Stephen several decades before.

By his personal example St. Pitirim instructed his priests how to find words that would reach the hearts of ordinary people. Those were the words of consolation and support, words that really staggered a populace who lived by the laws of vendetta and in the wildest pagan ways: “And he baptized and converted many, since those people were ignorant and notorious for their cruel customs; the blessed man enlightened and taught them in faith with great humility.” According to the Vychegda-Vym Chronicle, the success of the mission was full and unconditional: “Bishop Pitirim converted the Udoren people at the Vashka River to the holy faith, gave them abbots and priests, and erected holy churches there.”

Wandering across his diocese’s outlying districts, the holy bishop didn’t forget the people of Perm who made up the heart of his flock. St. Pitirim would often give targeted support to residents of Zyryan settlements, generously distribute alms from his private sources, and, most importantly, intercede with the Grand Prince to reduce the amount of tribute the people of Perm were obliged to pay.

Over his tenure the holy bishop visited Moscow several times to take part in the events that would be epoch-making for his contemporaries. The first of them was associated with the Synod of the Russian Bishop’s anathema of Prince Dmitry Shemyaka, who had blinded Grand Prince Vasily II of Moscow (1425–1462) in order to seize power and remove his most dangerous and legitimate rival from the political scene. It is remarkable with what unanimity Church figures (monks, like St. Gregory of Pelshem, as well as bishops) took Prince Vasily’s side in this political struggle.

Later, the modern historian Alexander Zimin (1920–1980) would say that Shemyaka fell victim to his own defeat. If the outcome of that conflict had been different, history with its historiographers would have taken his side 7 . However, the rigor of the hagiography’s heroes casts serious doubts on this hypothesis. The White Lake Monastery elders allowed Vasily to break his vow of not laying claim to Moscow, giving him full freedom to act. The Church hierarchs came to the capital occupied by Vasily to demonstrate their loyalty to him. One of the senior Church representatives of great authority who showed unconditional support for Vasily was Bishop Pitirim. He knew like no one else how much suffering Shemyaka’s ruinous campaigns had caused ordinary Russian people. Engaging the Perm Diocese’s most hardened enemies (the Vogul people and the inhabitants of Vyatka) for his purposes, Shemyaka scored repeated successes in his acts of banditry—blood was shed, and people in St. Pitirim’s flock were dying. Later Shemyaka took vengeance on the people of Perm by executing the Perm captains Emelka Luzkov and Euphemius Ezhvin for their willingness to fight on the side of the people of Veliky Ustyug, whose lands were being ravaged by his regiments 8 .

A few years later, Bishop Pitirim preached to the people of Vyatka who had cooperated with the rebellious prince’s excessive ambitions, and his words had a direct effect: Having laid siege to Ust-Vym in 1450, the Vyatchane’s army suddenly withdrew, leaving the town intact. The population of Perm remained indifferent to Dmitry’s calls. Everything seemed to indicate that the prince’s cherished ambitions were crumbling to dust, and the uncompromising and energetic Bishop Pitirim had largely contributed to that.

Shemyaka was determined to capture the bishop during one of his trips and by means of persuasion or promises force him to repeal the anathema against him. It remains unknown whether Dmitry hoped that psychological contact and mutual understanding might come during their talk tete-a-tete, or whether he believed in his own powers of persuasion, or had prepared some arguments which would justify his aggressive policy in the lands of Russia’s north, or perhaps meant to influence the bishop by threats and promises. 9 In any case, his main aim was to win St. Pitirim over.

This is how the Vychegda-Vym Chronicle describes this event: “In 6960 (1452) the cursed Shemyaka caught Bishop Pitirim on his way to Moscow, brought him to Ustyug, put him in jail and tortured him there; but the hierarch stood firm and did not repeal his anathema.” While in Ustyug in 1452, Dmitry followed all the movements of the Russian Church’s authoritative hierarch closely; and as soon as one of the prince’s spies reported St. Pitirim’s scheduled trip to Moscow, with the departure date and accompaniment (the bishop preferred to travel light, caring more about speed of travel than safety), Shemyaka didn’t fail to make use of such favorable circumstances.

St. Pitirim spent several months in confinement. Since the bishop yielded to no persuasion and flattering promises had no effect (Shemyaka saw in St. Pitirim a severe exposer of his heinous crimes, personal cruelty and dissoluteness), the prince’s arguments took another turn: he considered a prison cell, short rations, and threats of reprisal to be faster and safer means than heart-to-heart talks and attempts at self-justification. But that was in vain: St. Pitirim’s thoughts, words and deeds were only: “I am ready to die.” And St. Pitirim would have done his archpastoral duty and shown the cunning prince that he would not find the bishop to be a reed shaken with the wind (Lk. 7:24). However, this time God saved His servant’s life: The Muscovite army that was moving towards Uglich forced Dmitry to hastily retreat to Veliky Novgorod—the last bastion of anti-Moscow sentiment. St. Pitirim was released and resumed his archpastoral ministry with new enthusiasm.

The most important event St. Pitirim took part in was the Church Council of 1448 at which the Metropolitan of Moscow was elected and his appointment was confirmed without the Patriarch of Constantinople’s approval, for the first time in several centuries. In effect, the approval of the Synod of Russian Bishops of Bishop Jonah of Ryazan as the Metropolitan of Moscow meant the beginning of Russian autocephaly. This event seemed uncanonical to many hierarchs of the age, and the legitimacy of Jonah was questioned. Under the current circumstances (the falling away from Orthodoxy of Constantinople’s protégé Isidore, disorder in the Byzantine Empire) St. Pitirim couldn’t remain indifferent and expressed his stance with his characteristic straightforwardness and firmness: There shall be Russian autocephaly! With all the disadvantages that “breaking the cord” (connecting the Russian Church with Constantinople) entailed, now there was no alternative.

St. Pitirim’s life ended at the height of his archpastoral activity. Many years before, when he was being consecrated, standing by the gravestone of his predecessor in the Perm diocese St. Gerasim, St. Pitirim had been well aware that he could hardly expect a peaceful repose on his bed, surrounded by grateful disciples. The archpastoral ministry in a Perm that had not yet submitted to the Prince and the Metropolitan of Moscow was fraught with risks. On August 19, 1455, soon after a successful missionary journey to Great Perm and Cherdyn, after the end of the Sunday Liturgy at the Church of the Annunciation in Ust-Vym, St. Pitirim together with other clergymen and parishioners headed for a field between the Vym and the Vychegda to hold a prayer service 10 . But several miles away the Vogul Prince Asyka and his son Yushman were lying in ambush. Perhaps they decided to get even with St. Pitirim for baptizing the Vogul people living along the Pechora River, or they just seized the opportunity to make short work of their long-time antagonist in the person of the Bishop of Perm during another raid: “They were angry with the holy father because, contrary to their wishes, he tried his best to convert pagans to Orthodox faith and baptize them 11 .”

According to one version, some of the Vogul people found out about St. Pitirim’s plans by making inquiries with someone from a group of “heathen” who “had sailed up the Vychegda for a certain undertaking… in five days’ walk distance, in the place called Yur 12 .” When the whole procession appeared in the field of vision of Asyka’s detachment, the heathen rushed towards the defenseless worshippers from their hiding. Seeing the enemy, the holy bishop instantly ordered his companions to escape, hoping at the cost of his life to cover their retreat to the fortifications of Ust-Vym. St. Pitirim realized that he was the main target of the heathen attack and it was unlikely that his flock would be pursued. The holy hierarch met his death without murmuring, without making any attempts to defend himself: “And, seizing the saint with fury, they took turns beating him, tormenting him and putting the innocent man to death.” 13 The bishop’s body, which lay unburied for forty days, remained incorrupt, and his relics were enshrined at the Church of the Annunciation in Ust-Vym to the left of St. Gerasim’s shrine.

St. Jonah, baptizer of Great Perm

Over the course of St. Jonah’s tenure in the bishopric of Perm the political situation in the region considerably improved: Moscow, in the person of Vasily the Blind and his heirs, completely crushed the opposition of local pagan princelings who would gather savage hordes to lay waste to peace-loving Zyryan towns and villages, along with the envious raiding bands of Novgorodians 15 (in fact no less pagan) who threatened the region’s development. The prayers of the holy men were answered, and St. Jonah died in advanced old age with a sense of accomplishment: The clouds that had been gathering over St. Stephen’s legacy were scattered by the labors and prayers of the holy men. “What lies in store for Perm?” the venerable elder Jonah asked himself on his deathbed in 1472. But the answer didn’t come immediately: New Christians would be born; they too would pray to Christ in this land and in the churches consecrated by him and his predecessors, after his death, after the death of his successor, and so on till the end of time. St. Jonah’s remains were laid to rest in the shrine containing the relics of Sts. Gerasim and Pitirim.

The the ministry of these three holy hierarchs of Perm who contributed to the enlightenment of the pagan tribes in northeastern Russia’s border regions in the fifteenth century is a story of how at the right time and place, there were men found in the Russian Church who fearlessly answered the Lord’s call, Whom shall I send, and who will go for us?: Here am I; send me (Is. 6:8).

Maria Marchenko Translated by Dmitry Lapa

Pravoslavie.ru

1  In 1385, “the Bishop of Novgorod was very angry with Pimen: how dared he establish a diocese in Perm, the age-old dominion of Novgorod? And he sent soldiers to take the Perm Diocese by force of arms.”

2  The so-called “bishop’s settlement” at the confluence of the Vym and the Vychegda Rivers.

3  The Vychegda-Vym Chronicle, p. 25.

4  M.B. Rogachev. The Perm Diocese in the Fourteenth and Fifteenth Centuries. P. 45.

5  The Vychegda-Vym Chronicle, p. 25.

6  Ibid.

7  A.A. Zimin. A Knight at the Crossroads: the Feudal War in Russia in the Fifteenth Century. Moscow, 1991.

8  It was the danger of war from Dmitry Shemyaka, threatening Great Perm, that caused Vasily the Blind to introduce the institution of “chief officer of the local administration” (namestnik) on that territory In 1452, Princes Ermolai and Vasily of Vereya became the first chief officers of the local administration.

9  You can always offer a metropolitan diocese to an unduly ambitious bishop.

10  According to another version, the assault took place on his way back from one of his missionary journeys: “The saint was seized during a journey like a defenseless lamb.”

11  The Tale of the Bishops of Perm. P. 72.

12  Ibid, p. 71.

13  Ibid, p. 73.

14  The Vychegda-Vym Chronicle. P. 26.

15  The Vychegda-Vym Chronicle in a solemn manner announces the military campaigns of Grand Prince Ivan III and the success of the military commander (voevoda) Prince Daniel of Kholm as an event that was directly related to the lives of the people of Perm // The Vychegda-Vym Chronicle, p. 26.

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AIT5000 – Class B+ AIS Transponder with Wi-Fi, NMEA & VHF Splitter

1314,00 €

“The AIT5000 is a Class B+ AIS Transponder with a 5W power output, a Wi-Fi interface, a built-in VHF splitter and utilises SOTDMA format transmissions.”

• Description
• Additional information
• Manual and Downloads
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KEY FEATURES

Digital Yacht have introduced a new range of Class B+ AIS transponders. Class B+ , a new standard, utilises SOTDMA format transmissions which offer a 5W power output (2.5x more powerful than a regular Class B), a guaranteed time slot for transmission in busy traffic areas and faster update rates depending upon the speed of the vessel. It’s ideal for ocean sailors requiring the best possible performance and future proof satellite tracking applications. As well as fast power boats and smaller non-mandated commercial vessels. It still inter-operates with existing Class B and Class A systems.

The main VHF antenna can be shared with the VHF, AIS and FM radio due to the patented ZeroLoss VHF-AIS antenna splitter incorporated within the AIT5000. furthermore, it also has a wireless interface for connecting to iPads, smartphones and tablets.

The AIT5000 creates a secure, password protected, local Wi-Fi network which allows AIS and GPS data to be sent to popular iOS and Android apps such as Navionics, iSailor, Weather4D, SailGrib, iNavX, TimeZero and more. These apps offer a detailed overlay of local AIS targets all updated in real-time. Depending upon the app, you can click on a target and can see identity as well as collision avoidance data. This includes CPA (closest point of approach) and TCPA (time to closest point of approach).

The tablet’s browser (Safari, Chrome, etc.) provides a simple, embedded web interface for one time programming of the boat’s identity and physical dimensions, required of all AIS transponders. Silencing the transmission and setting up wireless parameters such as passwords can also be done via this web interface.

Moreover, if you want the wireless interface to also transmit your NMEA 2000 data, please add our iKonvert which is an NMEA 2000 to NMEA 0183 converter. The wireless interface can connect up to 7 devices.

The AIT5000 has t he option of an AIS SART alarm which is great for use with personal AIS MOB devices. Now works with the popular Navionics Boating App for  Apple iOS  and  Android  to display GPS and AIS data on your Navionics charts.

CONFIGURATION

In order to facilitate the use and configuration of our AIS transponders, our AIT5000 now has a built-in web interface. The configuration of the transponder can be done through a computer, a tablet or even a smartphone and most importantly, no software is require

You can configure the AIT5000 through its own simple web interface, just open your web browser, enter the AIT5000’s IP address and you can configure the vessel details (MMSI number, Boat name, etc.), network name, password and even merge the AIS’s WiFi to an existing WiFi network on board.  So no complicated programming software or app required. You can even view the received NMEA data in the web browser, for easy fault finding of issues.

Finally, the AIT5000 supports TCP and UDP network protocols for maximum compatibility with apps. If you want to have full bi-directional control of an autopilot, with guaranteed data integrity or you want to be the only person receiving the data, then select TCP. If however, you want to receive the same data on multiple devices, for instance a PC at the chart table and an iPad on deck, then select the UDP broadcast protocol.

SPECIFICATIONS

• New Class B+ 5W transponder with GPS/GLONASS positioning
• Integrated and patented ZeroLoss VHF-AIS antenna splitter (share the VHF antenna)
• Multiple NMEA 0183 in/out and multiplex capability
• NMEA 2000 connectivity
• USB connectivity for PC/MAC
• Password protected wireless interface for tablets, smartphones and PC
• Web interface for configuration and status monitoring
• UDP and TCP/IP protocols supported for up to 7 connected devices
• Remote TX silence switch option
• Supplied with GPS antenna
• The AIS all-in-one Nucleus solution
• Alarm option too with AISLifeGuard

AIT5000 Quick Start Manual V2.00

An AIS which sends and receives data is known as a transceiver (or often called a transponder). There are also simple devices called AIS receivers which pick up transmissions and decode for displaying on a compatible chart plotter or PC based navigation system – or even an iPad or tablet.

AIS transponders will allow you to receive data from vessels close to you, but will also allow you to continuously transmit your vessel’s identity, position, speed and heading, as well as other relevant information, to all other AIS-equipped vessels within your range.

To transmit its position, an AIS transponder must have its own GPS antenna. All our AIS transponders are supplied with a GPS antenna or have a built-in GPS antenna.

To help you choose the right AIS transponder for you, here are a few keys that may help you out:

• Receive targets on a plotter – if you want to receive only AIS targets on a plotter then you have the choice between the AIT1500, AIT1500N2K, AIT2000 and AIT2500. The AIT1500 or AIT1500N2K have a GPS built into the transponder and is therefore recommended for fibreglass boats up to 30 feet. The AIT1500 only has an NMEA 0183 interface while the AIT1500N2K has a NMEA 2000 interface. The AIT2000 (class B) and AIT2500 (class B+) both have an external GPS antenna and can therefore be installed on any type of boat. They both also have an NMEA 0183, NMEA 2000 and USB interface.
• Receive AIS targets on software or applications – If you only want to receive AIS targets on navigation software or applications, then we recommend the iAISTX. This is an AIS transponder with an external GPS antenna and a built-in WiFi server.
• Receive AIS targets on a plotter AND software/applications – To receive AIS targets on a plotter and software/applications at the same time, we recommend the AIT5000 (Class B+). The AIT5000 is the most complete AIS transponder with a certified zero loss VHF antenna splitter, NMEA multiplexer, external GPS antenna and WiFi server.
• AIS for rental boats – if you are looking for an AIS receiver or transponder that you can put in your suitcase and want to use when renting a boat then the Nomad is the right AIS transponder for the job. It is the only portable AIS transponder that has a built-in GPS, is USB powered and comes with a portable VHF antenna.

Now that you have an idea of which AIS transponder you need, you will also need to choose between Class B or Class B+ AIS transponder.

There are 3 types of AIS transponders: Class A, Class B and Class B+ :

• Class B AIS Transponder is for recreational craft installation and is a simplified, lower powered 2W transceiver which is normally a black box and uses a connected chart plotter to display local AIS targets. It transmits every 30 seconds regardless of vessel speed and can’t transmit additional data like destination port.
• Class B+ AIS Transponder (also called Class B SOTDMA or Class B 5W ) is a new standard that utilises SOTDMA format transmissions which offer a 5W power output (2.5 x more powerful than a regular Class B), a guaranteed time slot for transmission in busy traffic areas and faster update rates depending upon the speed of the vessel. It’s ideal for ocean sailors requiring the best possible performance and future proof satellite tracking applications, fast power boats and smaller non-mandated commercial vessels.
• Class A AIS Transponder must have a dedicated (and type approved) display to show the location of nearby AIS targets and transmits at 12.5W. Data is sent at up to every 2 seconds depending upon the vessel speed and the display also allows for data to be inputted to the transmission such as vessel destination. A Class A device is normally used on commercial vessels as its Type Approved to IMO specifications.

In 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. These devices create a WiFi network on board and configure themselves by connecting to WiFi. The configuration of the transponder can therefore be done through a computer, a tablet or even a smartphone and most importantly, no software is required.

The following article explains you how to configure the AIS transponder: https://digitalyacht.net/2020/02/28/configure-ais-transponder-web-interface/

This is a very valid question. Especially if you have spent a few hours installing the transponder then knowing that it is working OK is very important. Using the proAIS2 configuration software allows you to see if the GPS position is OK. You can monitor the AIS reception of other vessels. As well as ensure that there are no errors or alarms. However, if you are new to AIS, there is always that nagging doubt as to whether other vessels are seeing you.

The best test of a Class B transponder is to ask someone else in your marina, who has AIS, to check that they are receiving you on their system. If your vessel is stationary, then a transponder will only transmit every 3 minutes. This increases to every 30 seconds when your speed over the ground (SOG) is greater than 2 knots. Therefore, do allow some time for them to detect you. Also when they first receive your transmission, the only data they will see is your position, speed, course and MMSI number. It can take up to 6 minutes to receive your “Static Data” (boat name, call sign, vessel type, dimensions, etc.). This is normal and is the way the AIS system regulates the amount of data being transmitted.

The other increasingly common method of testing an AIS transponder is to look on one of the online “live” AIS websites and the most popular of the free services is MarineTraffic.com

However, it 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 enthusiasts/volunteers operate these. In some areas the coverage is great but there are definitely “holes” in coverage.

If you want to stop transmitting your position, you can either fit a physical silent switch on the AIS transponder or you can stop the AIS transmission through the ProAIS2 software.

You can stop the AIS transmission of our iAISTX & AIT5000 with their built-in web interface. Easy to stop the AIS transmission with your smartphone.

No, the WiFi network only transmits AIS and GPS data. The NMEA 2000 interface is only to output AIS and GPS data to the NMEA 2000 network.

However, the AIT5000 WiFi network also transmits NMEA 0183 data so you can connect your equipment to the NMEA 0183 input and the AIT5000 will also transmit your other equipment data. If your equipment has an NMEA 2000 interface then you should add the iKonvert, NMEA0183/2000 converter, to transmit over WiFi all your NMEA 2000 data.

Our 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 according to the product version.

Make your device join this network and you will be asked to enter a password which is “PASS-xxxx” where xxxx is the same four-digit code as in your network name. You can change both the network name and password in the AIS transponder unit’s web interface

No internet connection is required. Many consumers get confused and automatically associate wifi with internet. The product creates a wifi network and the local iPad or tablet users searches for this in the same way they search for a wifi hotspot.

Once connected, NMEA data is sent over the local link created on board the boat.

Up 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.

We keep up to date reviews on our news blog at www.digitalyacht.net – search for Best Marine Apps for Android or iOS. Popular apps include Navionics, iNavX, TZ iBoat , iAIS, NavLink, iSailor, SeaPilot, Weather 4D, MaxSea TimeZero, SailGrib and literally 100s more.

Our products are also compatible with navigation software on PC/Mac/Linux.

We 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: https://digitalyacht.net/configure-apps-software/

Yes! 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 works well as well with Furuno WiFi radar installations.

The 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.

• GPS Antenna and 10m cable
• 3dBi WiFi Antenna
• PL259 patch cable for VHF
• 0.8m NMEA 2000 drop cable (male)
• 0.8m NMEA 0183 & Power cable
• 0.8m USB cable

You may also like…

iKonvert – NMEA 2000 to NMEA 0183 Converter (ISO)

AIS LIFE GUARD

• Automatic Identification System (AIS)
• Navigation sensors
• Internet on board
• Portable Navigation
• AIS Transponders
• AIS Receivers
• VHF Splitters & Antennas
• AIS Accessories
• Multisensor
• NMEA Interfaces
• NMEA to Wi-Fi Servers
• NMEA 2000 Cables
• SeaTalk Interfaces
• USB Converters
• 4G/5G Internet Access
• Hi Power Long Range Wifi
• Accessories
• PC Accessories
• TV Antennas
• PC Software
• Apple & Android apps
• Antenna Mounts
• Connectors + Adapters
• Internet Access
• PC Navigation
• Product Manuals
• Product Firmware
• Technical Notes
• Utilities and tools
• Software and utilities
• USB drivers
• Get Support
• Product Registration
• Product Return Form
• How to configure our AIS
• How to configure our 4G products
• How to create an NMEA 2000 network
• How to configure apps & software
• Technical FAQs
• Products with NMEA 2000 interface
• WLN10/WLN30
• Login / Register

Things to Do in Chusovoy, Russia - Chusovoy Attractions

Things to do in chusovoy.

• 5.0 of 5 bubbles
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• Things to do ranked using Tripadvisor data including reviews, ratings, photos, and popularity.

1. Park of History of River Chusovaya

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