Final answer:
The question is about the procedure word used for radio station transmissions and identifying the station by its unique call sign.
Step-by-step explanation:
The question seems to be about radio communications and the procedure word related to station identification and radio frequencies. When messages are transmitted by a radio station, they are sent out on certain channels or frequencies. The procedure word in question refers to the specific call sign that follows, which is used to identify the station broadcasting the message. In radio communications, each station is assigned a unique call sign which acts like an address that identifies the source of the transmission.
If you are able to pick up the audio portion of a TV station on your FM radio receiver, this is possible because some TV stations broadcast their audio on frequencies close to the FM radio band. Moreover, in many areas, TV audio was historically broadcast using frequency modulation (FM), similar to FM radio stations, which could explain why an FM radio can sometimes pick up TV audio.