Tracker Type: APRS
Powered by 2 AAA batteries
msBetweenTransmits = 3000 (3s, 0m, 0h)
gpsLockTimeoutMs = 150000 (150s, 2m, 0h)
gpsRetryAfterMs = 10000 (10s, 0m, 0h)
lhAltFtThreshold = 10000
hAlt.wakeAndEvaluateMs = 600000 (600s, 10m, 0h)
lAlt.wakeAndEvaluateMs = 40000 (40s, 0m, 0h)
lAlt.stickyMs = 14400000 (14400s, 240m, 4h)
dz.wakeAndEvaluateMs = 7200000 (7200s, 120m, 2h)
Balloon and Payload
- 36" Qualatex, unstretched
- 29 gram payload
- 1.69 grams free lift
Miles traveled: 1,625
Flight hours: 18.4
Max Altitude feet: 19,811
Cause of death: Signals stopped
General Thoughts / Observations
Following a strong storm, the goal of this flight was to jump on a fast wind current heading north. Launching in almost dead wind, within 5 minutes it was up to 30 mph and kept climbing in speed. The balloon flew 1,652 miles in 18.4 hours, an average speed of 89 mph. Its peak speed was 121 mph.
After flying northeast over Florida, the balloon crossed over the Atlantic Ocean near Melbourne. It came back over land in North Carolina and continued north through Virginia, Maryland, Pennsylvania, New York, then exited the USA into Canada near Montreal. The last signal in Canada was about 100 miles north of Quebec City.
This flight was the first flight with tracker’s revised software. With a time limited GPS lock there will no longer be excessively long lock times. Judging by the lock times and the APRS graphics, there were very few signal or lock time issues.
Thoughts for next time
Keep attention on GPS data, start tracking GPS mAs to see it it correlates to GPS performance.