An amateur radio high-altitude balloon combines near-space exploration with ham radio communications, allowing operators to experiment with APRS balloon tracking, balloon telemetry, GPS, and SSTV high-altitude balloon transmissions. A typical amateur radio balloon payload can transmit its position and flight data using APRS high-altitude balloon telemetry, while SSTV provides images captured during the flight. Ham radio enthusiasts can learn how to track a high-altitude balloon with APRS, how to decode APRS balloon packets, and how to receive SSTV images from a high-altitude balloon, often using conventional radios or by receiving high-altitude balloon signals with an SDR. These projects offer an exciting introduction to amateur radio balloon tracking and near-space communications.