据cqww.com官网规则：
B. Single Operator Overlay Categories: Any Single Operator entrant who meets the requirements may ALSO enter one of the categories shown below by adding the appropriate CATEGORY-OVERLAY line in the Cabrillo log file header. Overlay category entries will be listed separately in the results; scored as All Bands; and grouped by High Power and Low Power (includes QRP).
3. Youth (YOUTH): The operator was 25 years old or younger at the start of the contest. Indicate the birth year in the SOAPBOX field.
