We've been planning to do this. If you write to me off-list, I'll put you in touch with our team who have designed a box. Largely because of the sterility issues, we're trying micrometorites as our

We are thinking about what project we want to take on this winter We have considered streaming video from the balloon. I really liked that idea but no one else did. So now we are thinking about

Videos of the talks for AHAC 2020 conference will be here. The Workshop on Lora is already up on YouTube. https://www.youtube.com/c/StratoballooningOrg/videos - Bill WB8ELK

Hi Hank, I emailed you the links directly. I was listening to one of the talks earlier about balloon venting. - Bill

Bill, I have a feeling you didn't get my direct email. Just in case there's something going on on your end that you might not be aware of, mentioning it now here rather than waiting a long time. Hank

https://www.stratoballooning.org/ahac-2020 If you are interested in attending the afternoon sessions, email me for the link. My callsign at AOL.com - Bill WB8ELK

Just to confirm all services are now back up and running. Thanks to Daniel and Adam for the assistance.

Evening all, Just a heads up we are moving the physical servers that host the Habhub platform this coming Thursday the 17th of November. All services will be affected and they will go offline from

NCEP has had major issues for about 30 hours serving model data out on its public interfaces (NOMADS). 73 de Mark N9XTN

I am not seeing the model data update today. I'm thinking about a launch Saturday. Larry KJ6PBS

Hi Steve, Thanks for making the confirmation on my calculations. I was amazed that that little balloon granted with no work to do could reach as high as it was

Hi Joe - Assuming this is not a trick question (if a balloon is neutrally buoyant it won't ascend - so won't ever burst). Assuming you mean if something else was pulling it up: The

It has been a LONG LONG time since I have calculated a burst altitude. Let me see if I am STILL doing it correctly.. I did a calculation on a tiny 100 gram

Looks just like the one I have. For those that may be interested, the bunched up wire seen lower left is the long 100KHz Loran receive antenna that would be unbunched and trail below the sonde

Look what I just found in the garage! Hoarding 101. That sonde was picked up before the turn of the century! We get to sound like old geezers now! -- James VE6SRV

I read that there was now software on the web to decode sondes, but not for the sondes used the last time I checked, but the rumor was that they would be changing to the GPS sondes in a few years and

Environment Canada has been using the Grau DFM-06 radiosondes for some time. The Canadian Military also uses radiosondes and I have noted Vaisala RS41 being launched from Petawawa, Ontario but these

James, It appears EC is now using GPS sondes, and the radiosonde_auto_rx software (which can be run on an RPi) should be able to decode positions if not the full telemetry stream. If they work like

Mark, Carvel is the closest upper air sounding station. Before we launched our first balloon, we went for a tour of the station and saw how they filled and launched their balloons. We based our first

James - not sure where you're located relative to any Environment Canada upper-air sites, but you could build a radiosonde ground station and chase those! 73 de Mark N9XTN