Instead the receiving operator must wait until a transmitting operator has indicated the end of transmission by means of a turn over prosign and has manually changed the antenna over from transmitter to receiver.
12.
Eight times out of 10, some miscreant is returning my call well after my deadline, burbling furiously : " You've got it all wrong, I never ( STATIC ) My lawyer . . . ( STATIC ) Wait, I'm going into a ( END OF TRANSMISSION ) ."
13.
An example of a half-duplex system is a two-party system such as a walkie-talkie, wherein one must use " over " or another previously designated keyword to indicate the end of transmission, and ensure that only one party transmits at a time, because both parties transmit and receive on the same frequency.
