RAD-004 - Ship Radio Station Watchkeeping Hours

Marine Notice

Rev. 07/20

TO: ALL SHIPOWNERS, OPERATORS, MASTERS AND OFFICERS OF MERCHANT SHIPS, AND AUTHORIZED CLASSIFICATION SOCIETIES

SUBJECT: Ship Radio Station Watchkeeping Hours

Reference: (a) Maritime Regulation 6-180

1. ITU Radio Regulations Article 57
2. ITU Radio Regulations Appendix 13
3. ITU-R Recommendation M.1169 Supersedes: Marine Notice 6-180-5 dated 1/00

The following changes have been included: Revise and updates the list of ITU references

PURPOSE:

This Notice provides guidelines on mandated ship radio station watchkeeping hours.

APPLICABILITY:

This Notice applies to all Liberian flag vessels equipped with ship radio stations.

REQUIREMENTS:

Ship Stations shall maintain the following hours¹ of service:

1.0 First category Ship Stations are to maintain continuous service around the clock.

2.0 Second category Ships Stations: 0000-0400; 0800-1200; 1600-1800; 2000-2200;

and, additionally, four (4) hours of service at times to be decided by the Master, to meet the essential communication needs of the ship, having regard to propagation conditions and traffic requirements.

3.0 Third category Ship Stations: 0800-1200; two (2) continuous hours of service between

1800-2200; and, additionally, two (2) hours of service at times to be decided by the Master,

1. All radio watchkeeping hours shall be in ship's time. 1 of 2

Inquiries concerning the subject of this Notice should be directed to the Office of the Deputy Commissioner, Republic of

Liberia, the Liberian International Ship & Corporate Registry, 22980 Indian Creek Drive., Suite 200, Dulles, VA 20166,

USA. The most current version of all Marine Notices are available in the Online Library at: http://www.liscr.com

to meet the essential communication needs of the ship, having regard to propagation conditions and traffic requirements.

4.0 Fourth category Ship Stations are urged to provide service from 0830-0930.

* * * * *

RAD-004 2 of 2 07/20