U4B HF WSPR High Altitude balloon tracker

[@jbfedison]

Just curious if 11,000 meter altitude flight path of this balloon is a concern for collision with commercial aircraft? Am totally new to ballon flight subject but aircraft routinely fly between 9100 and 12800 meters and it seems the this balloon could be in the same path as commercial flights. Any concern for (passenger) aircraft safety? How often do aircraft collide with such balloon and what are the consequences?

[@Liberty4Ever]

I'm very eager to buy one or two of these balloon tracker kits. My friends run a local nonprofit educational company that provides hands on STEM (science, technology, engineering and math) education to children. I asked if they'd be interested in a balloon that's tracked via amateur radio, and they were very interested. This new hardware looks great! It's crazy that it has an on board BASIC compiler. Much respect! Of course, I'm also one of the millions who are anxiously waiting to buy a QSX kit! Thanks for making this so much fun, Hans. 73 de Bruce NI4B

[@CH_Pechiar]

At the club we are waiting for this product since you mentioned it in QSO Today. Excellent job. Congratulations.

[@Liberty4Ever]

Any updates? I'd love to buy a U4B. I've been waiting to launch the baloon for the local STEM school, and was hoping to launch in the northern hemisphere winter, sometime in the next three months.

[@JxH]

15:03 "...to compile it I do Ctrl-C..." Does that work as intended on MS-Windows ? Specifically wondering if the Ctrl-C is intercepted by Windows to perform some other function, such as 'Cut' or 'Break'. Asking because I've seen this sort of thing before. 🙂

[@audiobrian1]

How does one gather tracking data over the path? Are standard WSPR spotting stations able to receive the decoded transmissions and make them available on the spotter website?

[@Tonyv1951]

Utterly brilliant work. Exciting times in amateur radio when such kit can be bought ready to go. I can't find it at the QRP-Labs shop. When might it be available please?

[@abrahamnorthhampton3327]

How is this project progressing? Very interesting!

[@powernumpty]

Are they delivered by air as four months seems a bit long to wait. ;-p

[@ANTALIFE]

Cool stuff

[@antoineroquentin2297]

Don't forget to fill the rest of the memory with zeros, those 1's are heavy