[aprssig] IGate Registering for ANSRVR (Messaging failures)(IGATES!)

Robert Bruninga bruninga at usna.edu
Fri Jul 15 11:48:04 CDT 2016

Thanks so much for confirming that it is not  an APRS-IS failure!  I am

Now all we have to do is track down the failed IGate codes.  ...  A never
ending impossible search.

But lets start trying to keep a list of "broken" implementations and
"broken" settings for each software type..

I know, easy to say, frustrating and inmpossible to do...


-----Original Message-----
From: aprssig [mailto:aprssig-bounces at tapr.org] On Behalf Of Pete Loveall
AE5PL Lists via aprssig
Sent: Friday, July 15, 2016 12:21 PM
To: TAPR APRS Mailing List
Subject: Re: [aprssig] IGate Registering for ANSRVR (Messaging failures)

javAPRSSrvr (internal IGate client) has always used only number of hops as
the criteria (direct is, of course, zero hops) for gating to RF.  There is
no dependency on type of packet.  One caveat to reduce needless gating (QRM)
to RF: when the station has been heard directly on APRS-IS (TCPIP* as path),
javAPRSSrvr will not try to gate to it on RF.  Both the local and
heard-on-APRS-IS lists are timed lists.  Number of hops and length of time
the lists hold their information is adjustable for local conditions.

Yes, there is some IGate software out there (I never tried to track which
software) that uses "nearby" as a criteria instead of "recently heard within
N hops".  Also, remember that some people are running "receive-only" IGates
which completely break the messaging functions of APRS-IS IGates.
Receive-only IGates are at best worthless and at worst breaking messaging.


Pete Loveall AE5PL
pete at ae5pl dot net

> -----Original Message-----
> From: Lynn W. Deffenbaugh (Mr) via aprssig
> Sent: Friday, July 15, 2016 10:12 AM
> Subject: Re: [aprssig] IGate Registering for ANSRVR (Messaging
> failures)
> I can only state with conviction that APRSISCE/32 considers a station
> "recently" "local" based on 30 minutes and at most 2 hops used
> (although the calculation of that is interesting with stations
> originating WIDE2-1 in a path, is that one used or was it originally
> that way?).  Eventually these will be configurable, but for now,
> they're hard-coded.  You can
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
> PS.  If anyone can speak authoritatively on what criteria the other
> IGate software uses for gating messages from the APRS-IS to RF, I'd be
> all ears... er eyes and would love to be corrected or confirmed in my
> recollection that one of them can consider distance rather than used hops.
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