High Altitude Ballooning
Calgary and Area
"Poor Mans Space program"
This flight worked out well as a test with a transmitter running around 10 mW. The balloon was launched from inside Calgary (with permission from edm flight services) The balloon was predicted to burst south of strathmore. The balloon travel south East. Average speed was estimated around 25 KM/h and burst altitude was estimated around 20-25K feet. This was a test of using cheap (large 3 foot) party balloons inflated with H2 gas. Rate of ascent around 200 feet/min. These balloons have a mass of 35grams each. Payload mass is 53.4 grams with a 45.78 gram 9Volt battery.
The transmitter was on 433.945mhz and we tracked it from inside my house. We could pick up clearly upto 1.5 hours, after that the signal abrutly dropped out. (probably landed)
This launch used around 4cubic feet of H2 (total) and the payload total weight was 55 grams.
Video / Audio
Predictions: 1:45 hours 45KM SE 1330 Log start (launch) 1337 strong AM signal 1341 5 bars AM 6 FM 1352 strong (AM) CW 5 bars with rubber duck ant 1400 3 bars CW 1404 start recording 1407 4 bars CW 1410 S3 on FM 1414 s4 of AM 1423 FM still clear AM ok but CW poor 1430 all modes weak except FM 1436 CW still readable on 433.93554 1440 FM still S2, AM barelt reable 1445-52 CW missing some chars 1457 signal gone.