3rd time for this APM2 and 3DR radio combo ! The temps ranged from 100 F on ground to -51 F at one point in flight.
We did have a failure on the 3DR radio at -51 F. Radio died and won't come back.
We used the APRS.FI tracking as well and it showed great.
As you can see, there is NO insulation in our fiberglass box. Cameras on outside have no insulation.
All electronics worked for 3 flights now and still work (except the 3DR)
Sparkfun datalogger worked this time. I need to DL the APM2 data yet.
Earl
Comments
We are also considerinf the Raspberry Pi I got 6/26/12 for a future flight with a live web camera.
What do you think ?
Earl
We are going to launch another balloon on 7/2/12 at 16:00 UTC to 100,000 ft.
Same APM2 and 3DR radios and APRS unit.
Call sign is the same KE5VSH-1 and you may track it on APRS.Fi
The prediction program says it is gonna land somewhere in Albuquerque city proper. We will see.
Earl
yup, thats the one.
Earl
The callsign for our balloon and glider flights is KE5VSH-1
I will try to make announcements in the arduballoon section 2 days before flight.
The glider we will use is an X8. No motor, not needed, with aprs onboard as well as the APM2 and 3dr 433mhz radios controlling the rc stuff with a joystick in mission planner via the mavlink connection. No rc rx installed...not needed. We will also have 5 watts of live video on 439.25 mhz. A tv set to cable channel 59 with a 12 element beam antenna to show FPV from glider. We plan to fly back from whatever altitude we get to. We will have a cut down circuit via mavelink..
I gotta go now to get some sleep for school in am.
Earl
Earl you mentioned you had a radio failure did you find the source ? The reason I mentioned condensation and frost is because I had a radio failure in a plane once in the winter It worked fine one day it was already cold It got extremely cold that night the next day it wouldn't fire up. when they disassembled it they figured condensation had formed on the circuit board from repeated heating and cooling and when it got extremely cold it froze and lifted the foil off the circuit board breaking the contacts you might have had a chip freeze and split when it warms up the frost goes away leaving the damage and you trying to figure out why? You are doing interesting stuff Have a good day Earl
I am going to do RTL on mine.
Earl
Glider is put together. Shooting for mid July.
Dont know about frost. Should put a camera inside with an led light.
Earl
Looks Good Earl do you get frost or condensation on the inside on the way up? How is the glider launch coming?
good post!
Earl