Date: Tue, 7 Dec 2010 12:16:13 -

Author: --- "Paul Lulai"

Subject: Re: Wx Balloon to the Stratosphere

Post:

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I've been told by 3 different weather balloon sources that it is illegal
to use cellphone gps systems at altitude. There are stories of people
doing it. Probably no sever consequences, but I would look pretty
deeply into that issue before I consider using a cellphone-gps system
with a weather balloon. =20
=20
Paul Lulai
Physics Teacher
St Anthony Village S.H.
3303 33rd Ave NE
St Anthony Village, MN 55418
=20
612-706-1146
plulai@stanthony.k12.mn.us
http://www.stanthony.k12.mn.us/hsscience/
=20
=20
From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
Behalf Of Paul Nord
Sent: Tuesday, December 07, 2010 11:35 AM
To: tap-l@lists.ncsu.edu
Cc: Paul Nord
Subject: Re: [tap-l] Wx Balloon to the Stratosphere
=20
Brian,
=20
The term you're probably looking for is Radiosonde.
Here's a description: Radiosondes
=20
=20
There are a few old surplus sondes available on eBay. Do worry about
the condition of the batteries on those. Acquiring/borrowing/running a
receiver for such a sonde is a little more tricky.
=20
The quick class projects discussed have just used a cell phone camera
and have relied on recovery of the balloon to get any data. Depending
on launch conditions, your balloon may end up 80 miles downrange. Point
your camera at a thermometer?
=20
Idea: Has anyone ever seen a small bluetooth weather station?
=20
Here's a fun way to find your balloon once it's down:
Global GPS Tracker with Two Way Calling + SMS Alerts
=20
=20
It would be really nice if you could figure out a way to do this with a
cellphone-based GPS package tracking system. Here's one that tracks
temperature in real time:
CoolTrax - Coolchain Monitoring and Tracking Temperature and GPS, Thermo
King and Carrier Reefer Monitoring =20
These are designed for a very different purpose. But it could be the
right technology to replace the old radiosonde system.
=20
Paul
=20
On Dec 7, 2010, at 10:00 AM, Cudnik,Brian wrote:



Greetings all-
We have the opportunity to work with a local middle school to send a
weather balloon, equipped with a camera, into the stratosphere. They
would like for it to return the same type of data as a standard weather
balloon (e.g. the ones launched daily at 0h UT and 12h UT) as well as
take pictures and video of the ascent. I remember a discussion on this
list earlier this year, but I am having difficulty pinpointing it in the
archives. Does anyone remember when this discussion was had and where I
can get the information on how their device was constructed? In the
meantime I will continue to search Tap-L and the Web for more
information.
Thanks in advance, Brian Cudnik
Specialist, Laboratory, Department of Physics, Prairie View A&M
University (TX)
=20
________________________________

=20
=20

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Iíve been told by 3 =
different weather balloon sources that it is illegal to use cellphone gps systems =
at altitude. There are =
stories of people doing it. =
Probably no sever consequences, but I would look pretty deeply =
into that issue before I consider using a cellphone-gps system with a weather balloon. Paul =
LulaiPhysics =
TeacherSt Anthony Village =
S.H.3303 33rd Ave =
NESt Anthony Village, MN =
55418 612-706-1146=
plulai@stanthony.k12.mn.ushttp://www.stanthony.k12.mn.us/hsscience/<=
span =
style=3D'font-size:10.0pt;font-family:"Arial","sans-serif";mso-fareast-fo=
nt-family:"Times New =
Roman";color:#1F497D;mso-no-proof:yes'> From: tap-l-owner@lists.ncsu.edu =
[mailto:tap-l-owner@lists.ncsu.edu] On Behalf Of Paul =
NordSent: Tuesday, December 07, 2010 11:35 AMTo: =
tap-l@lists.ncsu.eduCc: Paul NordSubject: Re: =
[tap-l] Wx Balloon to the =
Stratosphere Brian, The term you're probably looking for is =
Radiosonde.Here's a =
description: Radiosonde=
s There are a few old surplus sondes available on eBay. Do =
worry about the condition of the batteries on those. =
Acquiring/borrowing/running a receiver for such a sonde is a =
little more tricky. The quick class projects discussed have just used a cell phone =
camera and have relied on recovery of the balloon to get any data. =
Depending on launch conditions, your balloon may end up 80 miles =
downrange. Point your camera at a =
thermometer? Idea: Has anyone ever seen a small bluetooth weather =
station? Here's a fun way to find your balloon once it's =
down:Global GPS Tracker with Two Way =
Calling + SMS Alerts It would be really nice if you could figure out a way to do this =
with a cellphone-based GPS package tracking system. Here's one =
that tracks temperature in real time:CoolTrax - Coolchain =
Monitoring and Tracking Temperature and GPS, Thermo King and Carrier =
Reefer MonitoringThese are designed for a very different purpose. But it =
could be the right technology to replace the old radiosonde =
system. Paul On Dec 7, 2010, at =
10:00 AM, Cudnik,Brian wrote: !supportLineBreakNewLine]>Gr=
eetings all-We=
have the opportunity to work with a local middle school to send a =
weather balloon, equipped with a camera, into the stratosphere. They =
would like for it to return the same type of data as a standard weather =
balloon (e.g. the ones launched daily at 0h UT and 12h UT) as well as =
take pictures and video of the ascent. I remember a discussion on this =
list earlier this year, but I am having difficulty pinpointing it in the =
archives. Does anyone remember when this discussion was had and where I =
can get the information on how their device was constructed? In the =
meantime I will continue to search Tap-L and the Web for more =
information.Th=
anks in advance, Brian CudnikSp=
ecialist, Laboratory, Department of Physics, Prairie View A&M =
University (TX)&n=
bsp;
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