VHF

Let me know that you have received and understood this message

Yes, or permission granted

To indicate the seperation between portions of the message

Change to Channel xxx before proceeding

My version is xxxx is that correct

An error has been made in this transmission. The corrected version is xxxx

Proceed with your message

How well do you receive me

I repeat

Distress call

Distress relay signal

No, or that's not correct, or I disagree

My transmission is ended I expect a response from you

Conversation is out, no response expected

Urgency Communication

During long distress situations communication can resume on a restricted basis.
Communicaton is to be restricted to ship's business or messages of a higher priority

Repeat all of this message back to me exactly as received after I have given over

Message received and understood

I hav received your message number xxx

I must pause for a few seconds/minutes please wait

Say this again / Repeat

Safety Signal

Indicates silence has been imposed on the frequency due to a distress situation

To advise that a distress situation is in progress (comes from other vessel or coast station, not from vessel in distress)

Distress cancellation

To advise that a distress situation is in progress (comes from vessel in distress)

Urgency cancellation

That is correct

Check coding, check text with originator and send correct version

Instructions received, understood and will be complied with

a) Request: Communication is difficult please send every word twice

b) Information: Communication is difficult I will send wach word twice