Also there is an angle here nobody in rocketry has grasped..... HAM's like to fly balloons. HAM's like to play with electronics. HAM's like to recover the payload from the balloon that went over 100,000' up. So they have all kinds of neat things like landing location prediction software. And free GPS transmitter designs good to over 100k.
But we here in rocketry land try and reinvent the wheel.
My next high altitude flight is using a PICO Beacon:
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APRS was practically designed for rocketry.
RDH8