Theinternational radio language is English, except in cases where you are licensed to speak in some other language.
When using a two-way radio youcannot speak and listen at the same time, as you can with a phone.
Don't interruptif you hear other people talking. Wait until their conversation is finished unless it is an emergency. If it is an emergency, inform the other parties that you have an urgent emergency message (see "Emergency Calls" below).
Do not respond if you aren't sure the call is for you. Wait until you hear your call sign to respond.
Never transmit sensitive, confidential, financial. Unless you are certain your conversations are secured with the proper level of encryption for the level of sensitivity, assume your conversations can be heard by others.
Perform radio checks to ensure your radio is in good working condition.
Ensure the battery is charged and the power is on.
Keep the volume high enough to be able to hear calls.
Regularly make radio checks to make sure everything is working and that you are still in range to receive signals.
Memorize call signs and locations of persons and radio stations you communicate with regularly.
In radio communication, you are not called by your name. Everybody has their own unique call sign.
Think before you speak.
Decide what you are going say and to whom it is meant for.
Make your conversations as concise, precise, and clear as possible.
Avoid long and complicated sentences. If your message is long, divide it into separate shorter messages.
Do not use abbreviations unless they are well understood by your group.