[aprssig] Weird Behavior on the APRS-IS

Heikki Hannikainen hessu at hes.iki.fi
Tue Feb 18 16:48:58 CST 2014


On Tue, 18 Feb 2014, Heikki Hannikainen wrote:

> On Mon, 17 Feb 2014, Stephen H. Smith wrote:
>
>> I then noticed that KJ4ERJ's ISS object originates with  fourth.aprs.net. 
>> I then thought maybe I could cut out some delays and latency by logging 
>> into fourth and getting as close to the source as possible.     When I 
>> connected to fourth, I got NOTHING !
>
> I investigated this one just now. aprsc's APRS object decoder has a silly 
> little bug, it doesn't handle objects having HHMMSSh timestamp - only 
> DDHHMMz. The ISS object has a HHMMSSh timestamp and aprsc doesn't take that 
> as a valid object, so the object filter won't pass it on.
>
> The bug is simple, and the fix is simple too, I'll release a new version 
> soon.

aprsc 2.0.13 is now out, and fixes this bug, so the o/ISS filter will 
start working better once servers are upgraded. It now works fine with 
object timestamps using e 'h' 'z' or '/' format.

   - Hessu



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