Balloons with radio capsule
Edit.: Which ones of the tested GPS receivers are the best for balloon flights?
Maciej: From our experience we know, that the simplest solutions are the best ones,
therefore the so-called ‘yellowy’, i.e. Garmin eTrex, as well as Motorola products prove to be the good ones.
It is important to ascertain, that a given model informs on the altitude during the whole flight. A part of manufactured GPS receivers do not meet these criteria and they do not work correctly above 18 thousand metres.
It is worth stressing, that while fighting for each gram of the capsule’s weight, all equipment including GPS is dismantled to the bare electronics. The capsule is constructed in such a way, that it perfectly protects the components against mechanical damage and influence of temperature. From the beginning of our flights, we have also been using the moisture absorbent.... | | Full text - download |