The document analyzes examples of student radio trailers and identifies codes and conventions used. It notes that the examples all followed a similar pattern of announcing the channel and air date, including interviews and facts about the topic. Sounds specific to the topic were used in some to give listeners an idea of the documentary subject. A table lists positives such as announcing broadcast details, using music/sounds, clear script delivery, and interview montages, as well as potential negatives like unclear overlapping voices and irrelevant sound effects.