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Connection to the internet is available from all Heincke networks. Depending on region, availability and actual throughput the ship's command can select one of several mobile or satellite based internet links.
A bandwidth measurement prioritizes traffic for essential services.
Internet links
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A mobile router and a maritime long-range mobile antenna system (http://www.sputnik24.de) provide LTE network connection in port and close-shore regions.
The maximum throughput is 150 Mbps download and 50 Mbps upload while highly dependent on ship's position, course and weather conditions. 20-40 Mbps are realistic values.
In case of low connection quality the connection is automatically handed over to 3G (UMTS) or even 2G (GPRS).
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The throughput of maritime satellite systems is still much lower than what we are used to by land based connections such as LTE or DSL.
Therefore a bandwidth measurement prioritizes traffic for essential services, networks and computers.
The following prioritization classes are defined
- Prio 1: PCs of the chief scientist, ship's command and captainA few very important PCs and telemedicine system
- Prio 2: Wired networks Science critical applications such as in the labs and cabinsemail and web browsing (for research)
- Prio 3: Wifi networkLow prio applications such as streaming, social media, messengers.
- Blocking: Some services such as Android/Apple app upgrades, private VPN and security-related protocols are blocked.
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You may use your existing email accounts using your own mail clients or webmail on your devices or on one of the public PCs.Make sure to connect your laptop to the wired ethernet for mail transfer to gain Prio 2 in the bandwidth management.
Messengers are generally allowed but classified to Prio 3 of the bandwidth managementhowever the usage might be limited to text only due to the low bandwidth prioritization.