See the ping-pong valve described here: https://tinyurl.com/y5ukveyb see fig 4 Steve Virus-free. www.avg.com

It seems like over inflation is a common problem. Could we come up with a simple (and light) pressure releif valve that is inseted in the fill tube? Maybe something that could be 3d printed. You

Hi All, I plotted the ascent and unexpected descent of the GPSL K5NOT-11 WSPR balloon I sent up. It was a WSPR Skytracker and SBS-13 balloon of which I had trouble sealing - the

Yep it is right....ocean currents are slow where it is currently located. - Bill WB8ELK

It doesn't appear to be moving much at all, can that be right? Greg K7RKT

It's here! Moving at a good clip too!

KM6BWB-10 will be over Iowa shortly.

Floyd, You can see all of the balloons currently flying in the World at: tracker.habhub.org or enter the GPSL callsigns of the balloons still flying on APRS.FI separated by commas. KM6BWB-10

What’s the trick or how can I find all the flyers on aprs or what ever tracking method. Dummies guide to balloon tracking.... Floyd KC5QBC

UPDATE: KM6BWB-10 returned to California today after a big loop into Mexico and out into the Pacific near Baja. Still flying high !!! - Bill WB8ELK

Hi Mark...it is floating with the currents. - Bill WB8ELK

Is this a floating with the currents type buoy or is it anchored? -- Mark Garrett Tri States Public Radio WIUM Macomb, IL WIUW Warsaw, IL WVKC Galesburg, IL K292GR Burlington, IA Office (309)

KQ6RS and students have developed a WSPR buoy using a Skytracker WSPR board attached to 6 months worth of batteries and a loaded whip antenna. It was just deployed by a research boat about 380 miles

Out of the 10 Pico Balloons that were launched last Saturday for GPSL (2 on Sunday), one is currently being received as it flies over Bulgaria (KC7VQR-11) and two more may still be flying but out of

I am listening to a websdr.org remote SDR radio near northern Greece. I use Direwolf and VB-Audio to loop audio from the websdr radio to the Direwolf program to act as an i-Gate even though the

I posted my drone camera's view of my launch on YouTube. Here's the link, https://youtu.be/LGexvt6NPXM -- Dr. L. Paul Verhage Near Space Evangelist

Hi Doesn't look like VA5BNC-15 is going make another miraculous recovery today.  Not surprising as the surface winds at touch down were in the 30 km/h range. Looks like the nearest APRS stations

Hi :) I used to work in the space sci dept at cornell and i still follow space info and i saw this and thought i would share :) Is there anything that shows that these sun events affect anything with

More like in a swamp in SC :-) My prediction shows it has likely landed about 2 km NW of the last APRS position at 33.3816 / -80.9417 in a clearing near Cooper Swamp just south of Orangeburg, SC. If

Quarantine will likely be 14 days at the top of a tree or Atlantic ocean.  ;-)