Photo by Cedric Letsch on Unsplash

Welcome to the High Altitude Balloon resource in the San Francisco Bay Area

About Us

Who we are

A community of interest for amateur radio and ballooning in all forms. We fly balloons when weather permits, please join us!


Pacificon Presentation- October 16, 2021

Click to access picoballoons-pacificon-2021-1.pdf

Stay Connected

Join the SF-HAB discussion group,
we announce our flights here

We also chat about ballooning on the
San Francisco Radio Club’s Slack

Analysis and information our balloon flights, radiosondes and more
Bryan’s Blog

Recent Posts

  • W6MRR-20 Last Transmission
    W6MRR-20 was approaching Iceland and stopped sending at sundown. It’s altitude was reporting between 1 W (9,000 m – 9,900 m) and 2 W (9900 m – 11,100 m). It must have developed a leak.
  • Tracking
    Once the balloon is released, you can only watch. If you are using WSPR, it is time to start your tracking software to get the wsprnet.org data and send it to APRS.fi. You can also go to http://lu7aa.org/ and enter the data about your launch. If you are using APRS, it will show up onContinue reading “Tracking”
  • Superpressure
    It is important to understand why these balloons do what they do. The latex balloons will rise until they burst. The balloon gets bigger and bigger with the expansion of the gas until the latex fails. They do not float. The superpressure balloon is not stretchy like latex. There is a little stretch but notContinue reading “Superpressure”
  • The Rate of Ascent
    The rate at which the balloon rises is useful to know. It allows you to predict when and where the balloon will come to float. If you know when and where you will launch, there are websites that will tell you where you will come to float and which way you will be going. IfContinue reading “The Rate of Ascent”

Recent Photos