[aprssig] APRS-IS Object Filter Syntax

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Fri Apr 19 12:42:47 EDT 2013

What object(s) are  you trying to get passed to you?

The o/ filter requires the full object name, or a wildcard if your 
object name isn't a full 9 characters.

And there's no way to filter on an object name AND a distance with the 
standard filters.  The non-negated terms are OR'd together (matching any 
single term passes the packet) while the negated terms are AND'd after 
that (matching a single negated term does NOT pass the packet).

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

PS.  I'm implementing a + modifier in my internal filter implementation 
in APRSISCE/32 that can do what you're after but it's not part of the 
standard filter.

On 4/19/2013 12:23 PM, Peter Devanney wrote:
> I would like to filter objects by 1) name and 2) Distance if possible
> I have tried the o/ command using it similar to p/ but didn't work.
> Anyone know what o/ syntax will work to filter specific object 
> prefixes and or distances?
> thanks
> Peter
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> aprssig at tapr.org
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