The next Operating Afternoon topic is a popular one and by request: APRS. Automatic Packet Reporting System (APRS) is an amateur radio-based system for real-time digital communication of information of immediate value in the local area. It can be used to track other hams, send messages, broadcast weather station telemetry, and many other things. The October Operating Afternoon is Sunday, October 2, at 2:00 pm at the BARC Clubhouse.