Hello,

I want to make a High Altitude Balloon and I want to make some questions to I don't loose my time learning and studying if satellite communication is not an option. I'm starting to study radio amateur from now, so I don't know almost anything. Sorry for that! Just simple questions that any of you can answer.

1) Will I be able to use a satellite for telemetry data from my balloon to a ground station? 2) It will be easier or cheaper to don't use satellite and just communicate directly to my ground station?

The target altitude is 30km.

My main fear is to loose my payload, so radio(maybe two radios for redundancy) is essential.

I'll contact experienced people in Brazil regarding the radio things after project is ready. I'm just writing the project so I need this simple informations.

I'll send GPS coordinates, altitude, speed, course information, two temperatures sensors, accelerometer/gyro, pressure informations. All text and simple things. I'm planning to send this data using APRS.

Thanks,

Wagner Sartori Junior