By:
On:

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 likeRead More →

By:
On:

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 haveRead More →

By:
On:

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 proAIS2Read More →

By:
On:

  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 saltRead More →

By:
On:

Dear Customer, Once 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 this is £45.00/60€ + Return Shipping + VAT.  If you would like to go ahead with this, please complete and print this AIS PROGRAMMING form with vessel details. If you do not have Microsoft Word or a means of editing Word documents, please print and complete this PDFRead More →