• How waterproof and dust proof is your radio?

    Many amateur radio transceivers and receivers are sold as being waterproof and dust proof; but just how waterproof and dust proof are they? Not every piece of equipment is as waterproof as their competitors.

    IP ratings

    Tests have been developed to test how waterproof and dust proof an item is. The results of these tests enable a product to claim a numeric IP rating; IP stands for Ingress Protection and the higher the numeric rating the more protection that device has against ingress. These tests are conducted in line with strict international standards so that the results awarded in one country should be exactly the same if the equipment have been tested in another country.

    The rating consists of two numbers. The first number gives the device’s protection against water ingress and the second number gives the device’s protection against dust. So the Kenwood TH-D72 handheld’s IP rating of 54 means that the radio will resist the ingress of water from everything up to a low pressure jet of water (5) and solid objects down to 1mm in size (4) – it is not dust proof.

    Results of test for water ingress

    The test for liquid ingress produces one of the following IP ratings…

    IP
    Rating
    Description
    0 No protection at all
    1 Protected against vertically falling drops of water
    2 Protected against spray up to 15° from the vertical
    3 Protected against spray to 60° from the vertical
    4 Protected against spray from all directions
    5 Protected against low pressure jets of water from all directions
    6 Protected against strong jets and waves of water
    7 Protected against temporary immersion between 16cm and 1m
    8 Protected against long periods of immersion under pressure

    Results of test for dust ingress

    The test for solid object ingress produces one of the following IP ratings…

    IP
    Rating
    Description
    0 No protection at all
    1 Protected against solid objects up to 50mm
    2 Protected against solid objects up to 12mm
    3 Protected against solid objects over 2.5mm
    4 Protected against solid objects over 1mm
    5 Protected against dust that may harm the equipment
    6 Totally protected against dust
Comments are closed.