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Virtual AtoN configuration
The transceiver can be configured to transmit position reports for up to five virtual or
synthetic Aids to Navigation. This configuration is carried out using the Virtual AtoN(s) tab
in proAtoN. Within this tab there are sub-tabs relating to each of the five virtual or synthetic
AtoNs. The sub-tabs are visible at the left hand edge of the window. The layout of the
virtual AtoN configuration tab is provided in the following illustration:
Virtual / Synthetic AtoN
Each virtual AtoN required must be separately enabled by checking the ‘Enable’ check-box.
The type of virtual AtoN can then be selected.
Virtual AtoN
A virtual AtoN is transmission of message #21 for an Aid to Navigation that does not
physically exist. A virtual AtoN may be used to mark a temporary hazard to navigation,
e.g., a wreck. For further information on the use of virtual AtoNs please refer to IALA
A-126, IALA O-143 and IALA guideline 1081.
Synthetic AtoN
A synthetic AtoN is transmission of message #21 from an AIS station located remotely
from the physical Aid to Navigation. An example of use is to provide an AIS AtoN target
for a buoy or mark that is not capable of supporting AIS AtoN hardware.