[aprssig] Filter to obtain specific stations in a region
wa7nwp at jnos.org
Tue Apr 26 12:59:17 CDT 2005
Is there a way to use the javAPRSfilters to extract only
the symbols in a region?
I can get the region: a/57/-125/41/-104 (NWAPRS)
I can get the symbols: s//a/W (all the winlink stations)
When I put the two together, it's an OR operation, not
an AND. So I get everything for the region AND all the
I've played a bit with the negation operator to no success.
This isn't hard with an external filter, I'm just curious
if it can be done with the tools at hand.
Bill - WA7NWP
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