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[aprssig] Re: Balloon Altitude (was Clipped menus in Xastir andother ?'s)

Larry Cerney lcerney at viawest.net
Mon Dec 13 15:33:53 UTC 2004


Hi Steve,

Maybe you could help me with a problem with your cgi script below.  We flew
a balloon yesterday with two APRS packages on it.  The first package,
AE0SS-11 reports correctly with the last=9999 as it hadn't been seen by
FindU until yesterday.  My package, K0ANI-11, I had tested in my yard 30
feet away from my I-gate antenna and so FindU has a good base of altitude
data.  When I use the cgi below with last=9999 it works fine.  When I try to
change it to last=24 or last=0024 I get an error message.
"The image "http://www.findu.com/cgi-bin/altitude.cgi?call-k0ani-11&last=24"
cannot be displayed, because it contains errors."

I just tested a few last='s and found that it does work starting at
last=1400.  Strangely, with last=1390 it only shows the downward slope.

I'm assuming the last= refers to hours, not minutes.  I that correct?

This cgi is a great tool for us balloonatics.

Thanks for everything you do...

Larry
K0ANI
 

"The only reason for time is so that everything doesn't happen at once." 
--Albert Einstein 
-----Original Message-----
From: aprssig-bounces at lists.tapr.org [mailto:aprssig-bounces at lists.tapr.org]
On Behalf Of Steve Dimse
Sent: Monday, December 13, 2004 1:51 AM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] Re: Balloon Altitude (was Clipped menus in Xastir
andother ?'s)

On 12/13/04 at 2:18 AM M. Schneider <msokla at brightok.net> sent:

>Cool feature, Steve!  Is this going to be available for any balloon launch,
>or was it just a one-time thing?  

No, its available for everyone, not just balloons. For example, his URL
shows my
altitude profile through my 6 week trip out west:

http://www.findu.com/cgi-bin/altitude.cgi?call=k4hg-8&last=9999

i still need to work on improving the time labeling, but this cgi will hang
around...

>I've got some friends who launch balloons
>here in Oklahoma who'd like to see this as a regular feature.  Also, does
it
>need anything running on their computer (such as QuickTime) to see the
>chart?  I'm getting the impression from their emails to me that they are
>having problems seeing the graph.  Shows up fine on my computer, though.

The cgi produces a PNG, which all current browsers handle correctly. Some
older
browsers do not handle direct png graphics, this is addressed as the last
item
in my FAQ. If people aren't seeing it, grabbing a current copy of any
browser
will fix that...

Steve K4HG

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