ITU-R M.821-1-1997
Optional Expansion of the Digital Selective-Calling System for Use in the Maritime Mobile Service

Standard No.

ITU-R M.821-1-1997

Release Date

1997

Published By

International Telecommunication Union (ITU)

Latest

ITU-R M.821-1-1997

Scope

All expansion sequences must utilize all the technical characteristics outlined in Recommendation ITU-R M.493 except as otherwise noted in this Annex.

ITU-R M.821-1-1997 history

• 1997 ITU-R M.821-1-1997 Optional Expansion of the Digital Selective-Calling System for Use in the Maritime Mobile Service