If I remember correctly Hi Float is just HE and air , nothing special. so the HE will still escape just as fast and left with an envelope filled with air. Joe WB9SBD

Hi Steve, thanks for the information! That's an interesting suggestion about Hifloat -- it looks like it could make a significant difference.

I don't think Kaymont sell any chroroprene balloons (Totex KA and TX series are both latex I think). For long duration Chloroprene would be better for UV degradation (and I think helium

Hey everybody, We're interested in some extended flights (several days) using simple latex (chloroprene?) balloons such as the ones from Kaymont. We have a ballast/gas release system that we're

Hey guys, I have a bunch of domain names that I bought back in 2009 when I thought I'd be more active in the hobby, and I'm tired of hemorrhaging money on them. Any interest? No charge, unless

Looks familiar. Just another toy to distract me and take my money. But I can chase and recover payloads while letting someone else pay to send them up! I’m about 50km downwind of an upper air

That looks like it might have been the one. I was busy setting up and launching a balloon when I saw the device. Didn’t get a good look at it. I could have spent a long time trying to find it as

Steve, A big thank you and the team for all the HABHUB functionality, and also thanks to Mark VK5QI and his team for standing up more and more of this functionality on sondehub.org. The high-altitude

The HABhub servers will be shut down toward end of this month*. The HABhub predictor, tracker, SSDV, burst calculator, UKHAS wiki and habitat site will all be affected. As

Yes, I was about to clarify that the software running in the pic is not the very niche sonde decoding software for which Mark provided the link. It's an illustration of the llilygo platform scale as

As linked in the other thread: https://github.com/dl9rdz/rdz_ttgo_sonde Also worth noting that rdz_ttgo_sonde will contribute data to the SondeHub radiosonde tracker (https://tracker.sondehub.org/),

https://twitter.com/hashtag/dl9rdz?lang=en&src=hash JE mentioned: " ...... , but what I saw was a little arduino unit that fit in the palm of your hand." Dug up this pic. Is this implementation

You are thinking of a TTGO, not an Arduino. Refer here for information on the firmware that would have been running on it: https://github.com/dl9rdz/rdz_ttgo_sonde 73 Mark VK5QI

That’s what popped up for me when googling, but what I saw was a little arduino unit that fit in the palm of your hand. It was self contained, from antenna to LCD display. I’ll have to snoop the

Sorry Cliff, I see now it's a Graw. I recovered 50 + lms6, 1680's while in ND. Cheers, Doug k6sts

I recovered a Graw back in June (the last time a sonde came within my chase zone). Hope to get a few more of those this fall. Just using a UHF receiver to DF them down but looking intently at the

https://groups.io/g/GPSL/files/GPSL%202022%20Technical%20Sessions%20Audio%20Files Got the second session with Hans Summers of QRP Labs fame squeezed down to 8 Megs (MP3), but left the earlier 22 Meg

Cliff, Thanks for the real nice recovery pictures. Great human interest value. Hank

Just 3 minutes to go. 2 minutes and holding now. I hate having these precious small sats having to go with a beginner rocket company whose only other launch ended in disaster.

Greetings, Apologies for this short notice. i got it of another list and thought that there might be some interest. New Amateur Satellites are