[aprssig] Odd Propagation
william.diaz at comcast.net
Mon May 11 21:16:58 CDT 2009
>From: aprssig-bounces at tapr.org
>[mailto:aprssig-bounces at tapr.org] On Behalf Of John Habbinga
>Sent: Monday, May 11, 2009 20:50
>To: aprssig at tapr.org
>Subject: [aprssig] Odd Propagation
>I am in Lubbock, TX and tonight I received an APRS beacon direct from
>K5DUG-2 as he was travelling on I-35 near Hillsboro, a distance of
>almost 300 miles. I thought this was odd because I haven't been
>experiencing tropospheric ducting this evening.
>So I pulled up NWSGet and downloaded the latest RADAR overlay for
>UI-View32. I noticed that the RADAR image shows several light blue
>streaks, from various RADAR sites, pointing in the same direction.
>I posted a screen capture at
>What kind of propagation am I experiencing? Has anyone seen anything
>like this before?
I have been told that this can occur when the radar antenna is
pointed directly at the setting or rising sun. Picking up some sort of
>John Habbinga, KC5ZRQ
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