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

If you have a Raspberry Pi 3 or 4 available, radiosonde_auto_rx works very well with most SDRs. https://github.com/projecthorus/radiosonde_auto_rx/wiki I've found that antennas capable of working the

https://www.graw.de/products/radiosondes/dfm-17/ Graw is a German company which recently won a NOAA/NWS contract to supply sondes to more than half of the US upper air network of 71 stations. The

It's a DFM-17

https://www.coaa.co.uk/sondemonitor.htm It's a trial for 21 days, after which they want payment. Using it in trial mode worked well.

Anyone have a link for the SondeMonitor? I saw a little Arduino based unit for the first time a few weeks ago. Are there multiple versions, or is there just one that has been developed? --

Congrats Cliff, looks like a RS-41. And yes it is addictive. Have fun, Cheers, Doug k6sts. Living in Florida

I wonder what size balloons they use now days since the payload is sooo tiny now. Joe WB9SBD On 9/11/2022 10:59 AM, Clif Brown wrote:

Decided to try my hand at chasing and recovering a NWS balloon. This one was was launched at 7AM from Peachtree City, GA and landed in East Cobb (NW Metro ATL). The homeowner was very friendly and

Free to good home, send me your address and I'll send you my old but working Spot PT2. Hardware only, it needs a ~$15 subscription to be used, but can be canceled after. Was used successfully on a few

Chinese man trapped aloft in hydrogen balloon for 2 days BEIJING (AP) — Chinese state media say a man has been found safe after he spent two days aloft in a hydrogen balloon, traveling about 320

Mike, It's been 3 1/2 weeks since I emailed you about this, and in a few days it will be 8 weeks since GPSL 2022. Where are the videos and session presentation slides? Many interested folks would not