Negative Acknowledgement (encrypted)
Introduction/Additional information:
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.
This ASM only has an AIS Message 26 variant.
Permitted as from:
12/05/2016
Registrant:
USCG
Physical link:
AIS
DAC or VPFI:
366
FI / Message ID:
25
Version:
0
State:
in force
Number of slots (max):
3
Last modified:
29/01/2021 - 23:19