[aprssig] 3 balloons aloft in NE Illinois
william.diaz at comcast.net
Thu Jul 23 12:49:39 CDT 2009
From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On Behalf
Of Clay Melhorn
Sent: Thursday, July 23, 2009 12:32
Subject: Re: [aprssig] 3 balloons aloft in NE Illinois
That is Pete Coons (forget his callsign) and his large group, mainly youth
from the Adler Planetarium in Chicago.
Obviously, they do not understand how APRS digipeating works, and or did
not consider the impact on other users over a wide area. A path of WIDE1-1
on a balloon causes massive qrm. There are 3 balloons beaconing every 30
seconds with 2 hop paths, though one is using WIDE2-2 instead of
WIDE1-1,WIDE2-1. Very often packets are delayed and packets are received
out of sequence. This also causes the icons on the map to ping-pong back
They appear to be in need of some elmering before their next launch.
I met him back in March or April.
They launch from about 10 miles from my home at Koerner Airfield on the SW
outskirts of Kankakee. I should get on their mailing list and do some
chasing one day. Might be fun.
For anyone interested in a simple on the ground RF APRS story.
Check out this article on page two from the April KARS Key Klicks newsletter
from Kankakee, IL.
Clay Melhorn N9IO Bonfield, IL
KARS - Kankakee Area Radio Society - W9AZ http://www.w9az.com/
ARRL (Central Division) http://www.central.arrl.org/
> From: william.diaz at comcast.net
> To: aprssig at tapr.org
> Date: Thu, 23 Jul 2009 11:59:50 -0500
> Subject: [aprssig] 3 balloons aloft in NE Illinois
> There are apparently 3 balloons aloft to the East of Kankakee, IL,
> at 30 second intervals on 144.39.
> 007734 Adler Far Horizons balloon
> 27/A=043819/DePaul High Altitude Ball
> Note the paths used. The local channel is solid, wall-to-wall packets,
> rendering it essentially useless to other users.
> Bill KC9XG
> aprssig mailing list
> aprssig at tapr.org
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