Our most prestigious creation
Alejandra is a beautiful aluminum ketch, measuring 134' in length and was built in Spain in 1992 in the "Spirit of Tradition" class.
Our company was first contacted to replace the old non-functioning CCTV cameras and overhaul the pre-existing KVH satellite television system, then, at the end of the summer season, to create a new communication and navigation system.
The current satellite TV system consists of a Navisystem 95 HT double LNB antenna capable of receiving satellite channels both in Europe and in America.
Navigation is monitored and managed by Nobeltec's Admiral program which, coupled with the IR2 4 kW Open Array Radar from the same company, connected via an Ethernet network, allows the on-board computers to highlight at the same time:
- Nautical cartography
- The radar screen also in overlay
- The position of the boat (by receiving NMEA data from the Gps Furuno and the Geonav Plotter)
- Check vessel traffic in the area affected by the route, using the AIS receiver
The on-board fixed network consists of two PCs connected to an Ethernet network via a Prosafe Netgear router. Their task:
- Manage navigation
- Manage vessel communications
- Manage emails
- Manage Faxes
- Manage weather reports
- Manage the on-board hi-fi system
The second computer was requested by the Commander to ensure immediate control of the entire system in the event of a sudden malfunction of the first.
To manage the internet connection, we chose the Radiomarine Communicator, a computer with a Linux Embedded operating system, from which it is possible to select and administer:
- Cable ADSL networks
- WiFi networks
- HSDPA/UMTS networks
- Satellite networks
To optimize navigation speed and costs, software updates are installed automatically and free of charge in remote assistance.
Wireless reception in ports is entrusted to a Netgear Access Point, which works in Client mode and uses a high-gain omnidirectional external antenna.
The UMTS/HSDPA connection is made via a Linksys 3G router
A Fleet BroadBand 250 from Thrane & Thrane guarantees satellite Internet and voice connection (with the supplied telephone) even at the same time.
The antenna has a diameter of only 27cm and a height of 33cm.
Inside the boat there is a protected wireless network, managed by three Access Points Netgear, separated from the wired network for security reasons, which can be accessed by:
Any other device with a WiFi connection (PDAs, VoIP phones, cameras, camcorders, printers)
The configuration is further redundant as we have provided for the network server:
A twin PC already installed and updated, ready to replace the first in case of problems
An automatic and progressive backup program on external disk for Network computers
Naturally, since the management of the system is quite complex, a complete use and maintenance manual was provided, delivered after the sea trials and the introductory course.