hello i have a question regarding the capability of the Arduino GSM module on the networks they rely on.
I was planning to create a high altitude weather balloon in the future with some sensors and a GSM module as a way to perhaps communicate new commands to the balloon. So my question boils down to, can the gsm network reach an altitude of around 100,000 ft (30km)? I feel like that is ludicrous but i gotta ask anyways, couldn't find much info by searching around 