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[aprssig] Where is KT5TK-11?

Donald Jacob wb5eku at gmail.com
Mon Feb 13 02:15:19 UTC 2012


So What happened to KT5TK-11  ?
Is it swimming with the fishes?

Don  WB5EKU


On Sun, Feb 12, 2012 at 6:10 PM, Lynn W. Deffenbaugh (Mr)
<ldeffenb at homeside.to> wrote:
> If you look closely at the raw packets at
> http://aprs.fi/?c=raw&call=KT5TK-11 you'll see that K5COD apparently
> replayed the earlier flight packets into APRS-IS MUCH delayed and with an
> unused path (direct reception on all packets?  I don't think so!).
>
> Hessu, I don't think there's anything wrong with your delayed packet
> detector in this instance.
>
> Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
>
>
> On 2/12/2012 3:25 PM, Heikki Hannikainen wrote:
>>
>> On Sun, 12 Feb 2012, Greg D wrote:
>>
>>> Hi folks,
>>>
>>> I'm confused.  Or, something is.
>>>
>>> According to Findu, the balloon is over Dickinson Texas, last received 1
>>> hr, 37 minutes ago.
>>>
>>> According to aprs.fi, the balloon is off the Louisiana coast, last
>>> received some 10 hrs ago.
>>>
>>> They can't both be right...  Probably neither is, but what's up with
>>> APRS-IS?
>>
>>
>> The duplicate filtering used on aprs.fi filtered some last packets, due to
>> the rather ambiguous local-time timestamp jumping back:
>>
>> http://aprs.fi/?c=raw&call=KT5TK-11
>>
>> I'll have to improve that code a bit to ignore backwards-jumping
>> timestamps if there's enough real time passing, or if the timestamps
>> continue to roll on nicely after the jump backwards.
>>
>>  - Hessu
>>
>>
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>
>
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