Which of the following is good procedure when contacting another station in a contest?

The best procedure when contacting another station in a contest is to send only the minimum information needed for proper identification and the contest exchange. This approach is effective in contest situations where multiple stations are trying to communicate simultaneously. By minimizing the information exchanged, you reduce the chances of causing further congestion on the airwaves and ensure that your communication is clear and efficient.

In contests, the focus is on quick exchanges, so providing just the necessary details—your call sign and the specific information required for the contest—helps to streamline the process. For example, if you are required to exchange signal reports or specific contest-related information, doing so succinctly allows for faster exchanges and improves the likelihood of making successful contacts amid the busy operations characteristic of contests.

Options discussing contacting the station twice or signing only the last two letters of your call are less optimal in this context because they could lead to unnecessary duplication and potential confusion. The key is to maintain clarity and brevity to facilitate effective communication during contests.