Error taking gps data and putting it into a string

Projects Programming
6

Noah517:
Hi everyone! I have been working on an RTTY telemetry system for a weather balloon. I have overcome many obstacles and this one seems like the last.

Any help is greatly appreciated.

You might want to consider a LoRa based balloon tracker, it will transmit the GPS co-ordinates as LoRa telemetry or FSK RTTY.

Range to a high altitude balloon is 250-400km at a mere 10mW.

Small and light, can run for weeks on a couple of AA batteries;