AIS Transponders

See and be seen!

The use of the AIS transponder has increased significantly in recent years, partly because of its lower purchase cost and safety benefits. Many users now appreciate its convenience. Especially on open water and at busy intersections, a transponder is ideal. You can see the course, speed and even the ship name of all ships around you. This is essential data to adjust your course or speed for safe passage. With the ship's name visible on your screen, calling other ships is very easy.

AIS Transponder Selection Guide

The advantages of AIS Transponder

The safety offered by the transponder is its greatest added value: everyone around you can see you too. This is a reassuring thought, for example when crossing to the UK or crossing the Maas estuary.

Another practical function of the AIS transponder is to calculate the CPA (Closest Point of Approach) and the TCPA (Time to Closest Point of Approach). These indicate respectively where and when two ships are closest to each other.

AIS Transponders are available in 2 or 5 watts. The latter has SODTMA technology on board, which means there is always a time slot reserved for transmitting and receiving. Any delay is kept to a minimum. Given the explosive growth in the use of AIS, we definitely recommend considering the 5 watts.

GPS antenna

The AIS transponder, unlike a AIS receiver, also a GPS antenna needed to transmit your position in the AIS signal. Depending on the type and construction material of your boat, this antenna can be internal or external.

AIS antenna

The position of the AIS antenna is crucial for your transmission range. Take this into account during installation and make the right consideration. For best results, we recommend using your own antenna for your transponder. An AIS/VHF splitter, on the other hand, offers the advantage of easy mounting.

Basic marine telephone certificate required

The use of AIS transponders requires a basic marine radio certificate. Programming your MMSI and ship name, among others, into your new transponder is a service we offer.