Which type of codes should be preferred for beacon code assignments?

Discrete codes should be preferred for beacon code assignments because they offer a unique and specifically defined set of values that make them ideal for clear identification across different systems. These codes reduce the potential for confusion or overlap with other signals, ensuring that each beacon's identification is distinct and easily recognized by receivers.

In contrast, random codes lack the structure necessary for effective beacon identification, leading to a higher risk of duplication or interference. General purpose codes may be too broad or ambiguous, failing to provide the specificity that discrete codes ensure. Discretionary codes can introduce variability that complicates recognition and reliability in communication. Therefore, discrete codes are the best choice for maintaining clarity and functionality in beacon assignments.