What is the method for denoting the size of the target during the third COF transmission?

In the third transmission of a call for fire, the method for denoting the size of the target is typically provided through a description of size. This step involves giving a clear and concise verbal account that includes terms indicating whether the target is small, medium, or large. This is essential as it helps the firing unit assess how to allocate their resources effectively for the engagement. By describing the size, it allows for a standardized understanding between the observer and the firing unit, thus ensuring accuracy in the response.

The other methods such as color coding, coordinates, or using a scale might not be appropriate or standard for conveying target size in this specific phase of the call for fire process. Each serves a different purpose but does not align with the specific requirement for size indication in this context.