This ASM implements the Project 25 OTAR Negative Acknowledgement message.
Usage Notes
This message is sent from the Key Management Facility to the Mobile Radio (MR) to respond to a Respond Kind 3 message which the receiving end does not understand, or has invalid message attributes (ID, number or MAC).
When this response is received, it is assumed it refers to the most recent message sent.
This message is broadcast as a non-addressed message to reduce the message size, and to avoid issues from a relocated RSI to a different MMSI.
Version 0:
This is an RTCM compliant implementation of the Project 25 OTAR Negative Acknowledgement Message.