[aprssig] Thinking Out Loud About... Digipeaters
tim.n9puz at gmail.com
Thu Jul 23 10:45:26 CDT 2009
Our local group here supports a couple of large public service events
each year where under normal conditions APRS coverage is poor to
non-existent in some areas. We have used it with good success to do
vehicle tracking but we would like to start equipping rest stops and
check points with full stations so we can do tactical messaging.
To date we have added temporary digipeaters in the area and ended up
with good coverage. We set them up more like a normal digi and did not
use the WIDE1-1 as if they would be fill-ins. We are in rural Illinois
so there was not a big metro area being trashed.
The temporary digipeaters typically only have antenna heights of 15-30
ft or are in a vehicle left parked on top of a bluff or other high
point for the day. The tougher of the two events used 3 of these digis
this year and there were still areas that were not covered. Adding
more are possible, we just aren't sure of the best way to configure
things. These same areas were problematic for voice comms as
well--repeater coverage isn't good.
So,... the question becomes would a good configuration be for setting
up temporary digipeaters with low antennas? I imagine with the antenna
height constraints the temporary would not be any different than if we
wanted permanent coverage in this same situation.
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