An analysis of the standard and a reconstruction of their rationale have led to an alternative, functional requirement with proper rationale, which can give the system integrator more flexibility in choosing equipment. This novel risk-based approach results in the same objective, i.e., an interference-free environment. Measurements have been performed to demonstrate possible disturbance sources and to investigate the communication range.
Analysis of Limit Setting Rationales for Protection of Maritime VHF Radio
IEC 60533 is a product standard that puts strict requirements on all equipment on board of ships. Except for dedicated bridge equipment, there are hardly any products available that comply. One aspect from this standard is the low emission limit for radio frequency protection of the maritime very high frequency radio telephony system. This limit appears not to be based on a minimum range to receive a distress call, but on the possibility of receiving the lowest possible signal in an assumed placement of equipment.
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Damen Naval contracts RH Marine for new Anti-Submarine Warfare Frigates
Damen Naval has signed a contract with RH Marine as the first Dutch supplier for the new Anti-Submarine Warfare (ASW) Frigates. RH Marine will supply the Integrated Mission Management System (IMMS), the Integrated Navigation Bridge System (INBS) and the Integrated Platform Management System (IPMS) for each of the four frigates for the Dutch and Belgian navies. The announcement of the cooperation follows the official contract signing on 29 June between the Dutch Ministry of Defence and Damen for the design, construction, and delivery of the new frigates.
RH Marine upgrades systems on the Royal Netherlands Navy ampihibious transport vessel Zr.Ms. Johan de Witt
RH Marine has started with a system upgrade and maintenance of the Zr.Ms. Johan de Witt, the amphibious transport ship of the Royal Netherlands Navy. All navigation, communication, and control systems on board will be renewed and all electrical components will be inspected.