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Rock Seven launches new M2M unit

RockBLOCK Mk2 with integrated antenna RockBLOCK Mk2 with integrated antenna Rock Seven

Rock Seven has announced the launch of RockBLOCK Mk2, a self-contained unit with satellite connectivity designed to enable Machine to Machine (M2M) communication and Internet of Things (IoT) applications.

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RockBLOCK Mk2 can send messages of 340 bytes and receive messages of 270 bytes using Iridium Short Burst Data (SBD), and comes with a variety of antenna options. The ‘naked’ version comes with either an in-built Iridium antenna, or an optional SMA connector for integrating with external antennas. 

Elsewhere, a ‘rugged’ version named RockBLOCK+ comes encapsulated in a waterproof IP68 housing, and includes a 3m lead.  Rock Seven claims this version is especially suitable for maritime application on workboats or ‘smart buoys’.

The manufacturer says the Mk2 is designed to work with any platform with a serial or USB port, including Arduino, Raspberry PI, Intel Edison, as well as Windows, Mac and Linux computers.

The ‘naked’ versions of the hardware are priced at £159, while the RockBLOCK+ will cost £189. Line rental for the units is £8 per month with no annual contract, and Rock Seven says individual transmissions can be sent from as little as £0.03. 


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Digital Ship magazine provides the latest information about maritime satellite communications technology, software systems, navigation technology, computer networks, data management and TMSA. It is published ten times a year.


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