SF-HAB / NoiseBridge dual launch
On December 13 we launched a HAB balloon in coordination with a NoiseBridge meshtastic HAB launch. For the highest probability of a balloon recovery, using the amateur.sondehub.org predicted flight path, a park in Stockton was selected as the launch site. This placed the predicted landing zone between Tracy and Livermore. The initial coordinated launch time…
Kazu’s AG6NS-23 Pico Balloon Launch
At 9:25 am on November 2, Kazu launched a Yokohama pico balloon with Party Balloon Helium. His payload was a his RP2040 pico balloon tracker. This board is flying with about 40 mw of RF power output, which is about 3 times the power of previous flights. This payload used a tilted, pyramid style solar…
Battery Powered Pico W6MRR-34 Launch
Sunday, October 19, W6MRR-35 was launched. This was the third battery powered version, in an attempt to extend transmissions past solar generation “sunset”. The payload was very similar to the previous -33 flight. After a full week of successful testing, immediately after launch, only a few transmissions were heard, and they were very weak. We…
ARRL 2025 Pacificon Presentation
Kazu and Martin present “Amateur Radio Ballooning in The Bay Area With SF-HAB” at the ARRL Pacific Division Ham Radio Convention. https://docs.google.com/presentation/d/1_fMJg8vZo3uXH9cOT1Unzsz4RlSpEwQlT6Mk1IBztLA/edit?usp=sharing
Battery Powered Pico W6MRR-33
Saturday, August 23, W6MRR-33 was launched. This was the second battery powered prototype, in an attempt to extend transmissions past solar generation “sunset”. Being very light weight with ~ 10 g for a typical payload doesn’t leave many options for batteries. Floating at ~ 40 K’, temperatures range from -50 C to -70 C. Usual…
SF-HAB Aug 9 High Altitude Balloon #6
Due to an unusual wind causing predictions from our normal launch sites to land far out in the Pacific Ocean, a launch from Tracy was planned. The morning of the flight the Sondehub flight prediction was inexplicably down. An alternative sites predicted a Hayward landing. Unfortunately, we had very low turnout for the launch. It…
Description and Analysis of our March 25 HAB Flight
SF-HAB High Altitude Balloon Launch #5
SF-HAB at Chabot Tinkerfest
We will be attend Tinkerfest at Chabot Space and Science May 17th – 18th.
Description and Analysys of our Feb 8 HAB Fight
SF-HAB High Altitude Balloon Launch #4
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