Automatic Transmitter Identification System

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The Automatic Transmitter Identification System (ATIS), German (rather uncommon) Automatic Transmitter Identification System [sic], enables a barge radio station to be identified and the owner to be determined by automatically sending a permanently programmed ATIS code . ATIS is a part of inland waterway radio stations prescribed by the regional agreement on inland waterway radio in many European countries.

The ATIS ID is broadcast after releasing the transmit button by keying a low-frequency subcarrier; tone frequencies of 1300 and 2100 Hz are used with a step speed of 1200 baud . Internal radios are equipped with an ATIS killer, which filters the ATIS signal on the receiving end so that the identifier is inaudible. The ten-digit ATIS ID is made up of several elements:

The complete ATIS ID in this example would be 9 211 03 6580.

For ships coming from states whose administrations are not members of the regional agreement, the ATIS code must be formed from the MMSI by prefixing the number 9.

In Seefunkbereich ATIS is not approved, but most radios allow you to turn off the ATIS function, so that the devices can be used in both the inland and maritime navigation. ATIS is not to be confused with the Automatic Identification System (AIS), which sends navigation data from vehicles in the maritime industry .

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