电台用语
战争或警匪片中常有使用收发两用无线电台或对讲机的情景。这个设备与电话不同，联络双方要轮流听说，而不能同时进行，所以需要术语协助交流。其中一些已进入日常语言。
常见的术语包括：
This is：放在对方名称之后，用于介绍自己，意思是“某某，我是某某”。如，“Mother Goose, this is Messenger Pigeon, over.”
Come in：You may begin speaking now。意思是“请回答”。如，“Contact C. This is L. Come in. Over.”
Go ahead/stand by：意思是“收到，请讲”或“收到，等待”，用于回应对方呼叫。如，“Adam, this is Mike, Go Ahead. Over.”
Read：I hear a signal clearly enough to be understood。意思是“收到”。如，“Do you read me? Over.”
Roger：I have received all of the last transmission。意思是“收到”。摩尔斯电码无线电报时代，为节约时间，发明了缩略语，包括用R表示“received”。到了语音通话时代，这一传统得以保留，但使用了读音字母表，比如“alpha”代表A，“bravo”代表B，而“roger”则代表R。
Copy：意思是“收到”，但不是标准用语。早期无线电操作人员可能需要书写或打字来记录信息，产生这一习惯用法。如，“Messenger Pigeon for Mother Goose. Do you copy? Over.”
Over：I have finished talking and I am listening for your reply。它是“Over to you”的简写，因此“over”不是“完毕”的意思，而是“该你了”或者“收到请回答”。每说完一句话要用“over”结尾，以提醒对方回答，直到最终结束通话。如，“Mother Goose, this is Messenger Pigeon. Over.”
Say again：意思是“请重复一遍”，用于没听清对方的情况。
Out/Over and out：I have finished talking to you and do not expect a reply。意思是“本次通话完毕”。在“out”之前加上自己的名称。非正式情况下，也可以用“over and out”。
Loud and clear：意思是听得很清楚。
Affirm/affirmative：肯定回答，比“Yes”清楚。
Negative：否定回答，比“No”清楚。
例1，C21A（Charlie-two-one Alpha）呼叫C33B（Charlie-three-three Bravo）：
C21A: C33B, this is C21A, message, over.
C33B: C33B, send it, over.
C21A: Have you got C1?D Sunray at your location, over?
C33B: Negative, I think he is with C3?C, over.
C21A: Roger, out.
例2，Adam呼叫Mike：
Adam: Mike, this is Adam. Over.
Mike: Adam, this is Mike, Stand By. Over.
Mike: Adam, this is Mike, Go Ahead. Over.
Adam: Mike, there is a fire at 123 Main St. Over.
Mike: Adam, this is Mike, confirming a fire at 123 main St. The fire department will be notified. Over.
Adam: Mike, this is Adam, address is confirmed, thanks for the help. Over and Out.
