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Use of Radar in the 500m Zone

Home Forums Main General Forum Use of Radar in the 500m Zone

This topic contains 1 reply, has 2 voices, and was last updated by  John 1 week ago.

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  • Does anyone know why it is common practice for radars to be turned off on entry to a 500m zone?

  • In truth no, but the text from ISGOTT re use of Radars is as per below. Could it be the scanner motors and in the case of offshore installations height relative to the installation? Of course, that would only be the case when close to the installation/

    “Radar sets, operating on 3 cm and 10 cm wavelengths, are designed with a peak power output of 30 kW and, if properly sited, present no radio ignition hazard due to induced currents.

    High Frequency (HF) radiation does not penetrate the human body, but at short ranges (up to 10 m) can cause heating of skin or eyes. Assuming sensible precautions are taken, such as not looking directly into the scanner at close range, there is no significant health risk from marine radar emissions.

    Radar scanner motors are not rated for use in dangerous/hazardous areas but apart from on smaller vessels, are generally situated well above shore hazardous zones. Any risk is reduced further on ships operating a closed loading system with vapour return. The testing of radars whilst alongside is therefore considered safe. However, it is good practice to switch the radar off or place it on standby when alongside a terminal and to consult with the terminal before testing radar equipment during cargo operations.”

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