AS NZS 4280.1:2017 pdf free
AS NZS 4280.1:2017 pdf free.406 MHz satellite distress beacons
The following are general requirements for the satellite EPIRB.
a) The satellite EPIRB shall be (IV/7.1.6.3) ready to be manually released and capable to be carried by one person into a survival craft.
b) (A.810(19)/A.2.1) The satellite EPIRB shall be capable of transmitting a distress alert to the satellites comprising the COSPAS-SARSAT system operating in the 406 MHz band.
c) The satellite EPIRB shall be designed to operate according to this standard when floating in the sea and shall also be capable of operating on board a ship and on a survival craft.
d) (A.810(19)/A.2.2) The satellite EPIRB shall be of an automatic float-free type.The equipment, mounting and releasing arrangements shall be reliable and operate satisfactorily under the most extreme conditions likely to be met with at sea.
e) (A.662(16)/1) Float-free release and activation arrangements shall enable the automatic release of the satellite EPIRB from a sinking ship and its automatic activation. Table 1 shows the correct combination of control functions to prevent or enable activation.
When the self-test mode (see C/S T.001) is activated, the satellite EPIRB shall emit a single modulated burst which shall always provide the beacon 15 Hex ID. The frame synchronization pattern shall be “01 1010000” (i.e. the last eight bits are complemented so that this test burst will not be processed by the satellite equipment and the burst duration shall be 440 ms or 520 ms).
For location protocol beacons, the content of the encoded position data field of the self-test message should be the default values specified in C/S T.001. Successful completion of the test shall be indicated. Activation of the test facility shall reset automatically. The 121,5 MHz auxiliary radio-locating device signal shall also be transmitted during the self-test, but it shall not exceed 3 audio sweeps or 1 s, whichever is greater. The self-test function shall perform an internal check and indicate that RF power is being emitted at 406 MHz and at 121,5 MHz.AS NZS 4280.1 pdf free download.
