Help Us to Help You, Log-on with Marine Rescue Rockingham before departure.


Your radio, whether it be a 27MHz or a VHF, is your link to the mainland while you are at sea. It should be in good working order and tested regularly by conducting radio checks with Marine Rescue Rockingham group or other Marine Rescue Groups in your area.


By Logging your proposed voyage with a Marine Rescue Group, and updating your log when your plans change, you are insuring that someone knows your whereabouts at all times and that a search will be organised should you fail to return on time.


Information required at the time of your logon is as follows:


  • 1. Your Marine Rescue call sign and / or Department Of Transport number,(commonly referred to as the DOT number.
  • 2. People on board, (inform the Duty Radio Officer if there are children present).
  • 3. Amount of fuel (litres) carried.
  • 4. Port of departure.
  • 3. Your area of operation (destination or fishing area), be precise, help us to find you!
  • 4. Your Estimated Time of Arrival (referred to as the ETR) at your destination or return to your Port of Departure.


Remember to speak clearly and slowly as the Duty Radio Officer is recording the information as you speak, try to avoid having an outboard motor running in the background.


Radio Communication

A typical radio communication is commenced by calling the required station three (3) times followed by your call sign and the word “over” i.e. “Marine Rescue Rockingham, Marine Rescue Rockingham, Marine Rescue Rockingham this is Echo Bravo 123, Echo Bravo 123, Over”. The use of the phonics alphabet will avoid confusion when using letters during radio communications.


Once the station has acknowledged your call you may commence providing your details for the log. Remember to say “over” when you have completed your transmission. The station will then confirm your log on or will request further information, please be patient, this information is vital for any search and rescue mission that may be mounted later.



Use of Phonetic Alphabet

Do you know your Phonetic Alphabet? If not you can download it here.

The Phonetic Alphabet will avoid confusion when using letters during radio communications.


Special note: Waterproof stickers are available (free of charge) from our Headquarters, at Peron detailing information required and Radio Frequencies, both working and emergency, you can also pickup a “Help Us to help You” leaflet.

What happens when you Log-on with a Marine Rescue Group,


Upon receiving your Marine Rescue Call Sign and / or DOT number the Duty Radio Officer will ask you to commence your logon. Should the Duty Radio Officer be busy on another call you will be asked to “Wait One”, which means that you are first in line. To avoid over talking another transmission please listen prior to activating your radio.


– Your details will be recorded on a “Running Sheet” and after confirmation will be transcribed to a “Log-on slip”. This Log-on Slip is your record and will be updated each time you modify your voyage details.


– All Log-On Slips are slotted in your Estimated Time of Arrival (ETR) sequence. The top Log-on Slip being the next vessel due to return to port. Should you not return by your advised “ETR” the Duty Radio Officer will commence standard “Overdue” procedures.


– You will be called every 10 minutes for the first 30 minutes before the Duty Radio Officer informs the Water Police of the overdue incident.


– The Duty Radio Officer will then be guided by the Water Police who will decide when or if we are to commence a search and rescue mission.


Special note: Please remember to Log-off on your return to avoid unnecessary concerns for the Duty Radio Officer and the Water Police. Once you have logged on you will remain on the log until the Duty Radio Officer has been advised to remove you.


Attention all Divers

When you have reached the destination of your dive Log-on with the Duty Radio Officer that you are ready to dive. Inform the Duty Radio Officer of the time you will resurface.


Should you fail to Log-off your dive by your advised ETR resurfacing time the Duty Radio Officer shall call you one time only prior to contacting the Water Police. This procedure is designed to ensure that assistance is made available as soon as possible after your expected resurfacing time.


Working and Emergency Frequencies on Channels 27MHz and VHF Radios







Repeater Station


88 and 86
16 and 67
81 and 83


Clubs, Events, Boat to Boat

27 MHz channels 94 and 96

VHF channels 72 and 77


Working and Emergency Frequencies


  • Radio - 27Mhz & VHF
  • Working Frequnecies -- 27.90 & 27.91 / 73 & Repeater 82
  • Emergency Frequencies - 27.88 & 27.86 / 16 & 67
  • Club, Events, Boat to Boat - 27.94 & 27.96 / 72 & 77
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2014 Rockingham Volunteer Sea Rescue Group (Inc.). All rights reserved.

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