[aprssig] "location changes too fast > 500 km/h"
hessu at hes.iki.fi
Mon Oct 12 23:47:57 EDT 2009
On Mon, 12 Oct 2009, Lynn W. Deffenbaugh (Mr) wrote:
> AH! I think I begin to see! Was that you "flying" houses and red dots
> over the Atlantic? In particular:
> g1 - A Home icon flying west and south-west.
> ccc - A Red Dot flying north-east
> cj - A Home icon flying north-east
> These three were all moving right around 1,000mph and stopped abruptly just
> after 10:00 UCT this morning.
No - those were flown by DG4SEX-1, and I had nothing to do with them, but
they provided nice testing material for the algorithm. They were doing
1646 km/h and 1439 km/h. There were also 'asa' and and 'y'.
PS. There also some repeater antenna installation photos from Saturday at
http://oh7lzb.blogspot.com/. We have an igate antenna on top of that
> Lynn (D) - KJ4ERJ
> Heikki Hannikainen wrote:
>> On Sat, 29 Aug 2009, Keith VE7GDH wrote:
>>> Kriss KA1GJU wrote...
>>>> The KA1GJU-6 tracker will not show up properly on APRS.fi since my
>>>> speeds are in excess of 500 kM/hr (270 kts) above 10,000 feet.
>>> Perhaps Hessu could tweak the settings on aprs.fi to remove the
>>> 500 kM/h limitation for stations using a plane/small plane symbol.
>> I've tweaked the algorithm now, and upped the hard limit considerably.
>> aprs.fi should now work fine for civil aviation purposes, but there might
>> still be issues with those of you with a scramjet or an SR-71/A-12. The
>> solution isn't symbol specific.
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