The DOW (Doppler On Wheels) trucks have been using the phased array
systems for some time and the results are fascinating.
Yes, bandwidth issues are going to be the bottleneck. With the poor data
comm infrastructure that we have here in the States is going to be a
killer to getting these services online and available for usage.
It would be great if there was symmetrical 100MBit/sec DSL available but
I don't see the telco companies doing it anytime soon but that is
another story all together.
73 from 807,
Richard, N6NKO
Brian Webster wrote:
In most areas of the country no. The reason being that the mechanical radar
units take at least 5 minutes to complete a sweep. I attended a skywarn
meeting this winter and NOAA/NWS will be upgrading to phased Radar antenna
arrays with electronic sweep actions thus eliminating the mechanical delay
and also giving them the ability to quickly look at problem areas when
needed. The resolution per pixel will also increase to 1/4 square kilometer,
now the pixels are 1 square km. The problem with the new resolution is the
size of the image files. Most NWS offices don't have enough bandwidth to
serve the public with a file size increase of 16 times what they currently
dish out.
Thank You,
Brian N2KGC
-----Original Message-----
From: [email protected]
[mailto:[email protected]]on Behalf Of Jason KG4WSV
Sent: Sunday, April 19, 2009 7:53 PM
To: Xastir - APRS client software discussion
Subject: [Xastir] faster radar image updates?
Looks like the RIDGE radar images only update every 5 minutes or so.
Is there a source for more frequently updated radar imagery that can
be had in an xastir friendly format?
-Jason
kg4wsv
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