ais on a sailboat ⛵ what it is, how it works and why it is so useful

Hello friends, in this video I show you a very useful and very important accessory for navigating safely: AIS, the English acronym AIS stands for Automatic Identification System or automatic identification system. It is used by ships, pleasure boats and traffic control stations. The system allows information on the position of nearby ships and shore stations to be exchanged electronically. The AIS transmits and receives on dedicated VHF digital bands, on channels that cannot be selected from the on-board radio. Each vessel or shore station equipped with a transmitter periodically sends accurate information about its position, speed and course. It also sends other useful data such as the type, size and name of the vessel, the MMSI number. For large ships, the destination, estimated time of arrival, type of cargo, etc. are also indicated.
This allows any boat equipped with a receiver to have all the information necessary to avoid collisions and much more. With the radar it is possible to identify another boat in situations of bad visibility. With AIS it is also possible to instantly determine its speed and course and, if there is a risk of collision. Consequently, also to whom has the right of way based on the type of boat. Furthermore, knowing its name, it will be possible to call it via VHF or DSC digital channel using the MMSI number.
Anyone who installs and uses even just a receiver for the first time will immediately realize how valuable this tool is. Situations that were previously stressful such as the risk of collision with a container carrier that has just appeared on the horizon will instead become easily manageable. The instrument uses data relating to our speed and course and to make a continuous calculation of the collision risk. The calculation performed is a vector calculation of the trajectories providing two key information. The CPA, from the English Closest Point of Approach, is trivially the closest point to which we will pass from another ship. The TCPA, from the English Time to Closest Point of Approach, is the time it will take us to find ourselves in that point.
It is possible to set sound alarms based on these parameters, in order to be alerted in case of potentially dangerous situations. When we are offshore we can be warned of any ship that passes within a mile of us in the next 30 minutes. This is just one example, we need to set up the tool to give ourselves ample time to react. Each parameter is easily customizable and it is advisable to learn how to use the tool to adapt to the navigation area.
THANK YOU FOR WATCHING THE VIDEO
#ais #vela #navigare

[@ernestoberardini3757]

Grazie
Buon anno 🍀

[@AlfredoContaldo]

Grazie Ernesto🙏 auguro un felice anno anche a te🥂 un saluto 👋

[@dionisio7719]

Ciao Alfredo che tipo e marca di AIS classe d mi consigli ? Magari di prezzo contenuto... Grazie mille..bel video e buon vento !

[@AlfredoContaldo]

ciao giovanni, non conosco le tue esigenze di navigazione, ma il mio consiglio è un raymarine 650 classe b il costo purtroppo è altino, ma ti conviene spendere una sola volta ed avere un prodotto affidabile e di buona qualità. compatbile con sistema seatalk e nmea. lo trovi su tutti i siti principali di nautica, ordinalo dove lo trovi di meno. Un saluto e buon vento a te. ⛵⚓

[@arq.miguelangelsobron5585]

Ciao Alfredo! bellissimo questo video! una domanda...quanti mille ha di copertura l´AIS? Scusa per mi italiano molto semplice!!!

[@AlfredoContaldo]

Ciao, dipende dall'altezza dell'antenna sul livello del mare per gli ais di classe b poiché il segnale viaggia sull'antenna vhf. Diciamo che mediamente un 30 miglia. Un saluto e buon vento 👋⛵️

[@arq.miguelangelsobron5585]

@@AlfredoContaldo grazie mille!!! un forte abbraccio!!!

[@joshuaslocum8000]

Alfredo ti ricordo che l'Ais non è obbligatorio non solo sulle imbarcazioni da diporto ma anche sulla piccola pesca, per non parlare di tutti quelli che lo tengono spento come pescherecci, navi militari e altri che non vogliono farsi vedere. Certamente utile ma non farci affidamento.

[@AlfredoContaldo]

Giusto, Infatti alla fine del video ho detto chiaramente che l'elettronica non potrà mai sostituire l'occhio attento sul mare e che deve essere considerata solo un valido "ausilio" alla navigazione ma con gli occhi sempre ben aperti.
Un saluto 🙂 👋 buon vento ⚓⚓

[@robertorus]

Bello la appellativo CAFONAUTICO ! 😅