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[aprssig] Two Space Stations on the APRS-IS !

Andrew P. andrewemt at hotmail.com
Wed Mar 14 19:37:18 UTC 2012


Maybe it's because the speed field in the message has only 3 digits, so the last (not the first) 3 digits of the actual speed values are being wedged in there (i.e., modulo 1000).

Just my guess.....

Andrew Pavlin, KA2DDO
------Original Message------
From: Lynn W. Deffenbaugh (Mr)
To: aprssig at tapr.org
Sent: Mar 14, 2012 3:32 PM
Subject: Re: [aprssig] Two Space Stations on the APRS-IS !


On 3/14/2012 3:25 PM, Stephen H. Smith wrote:
> On 3/14/2012 3:18 PM, John Ronan wrote:
>>
>> Yup, that bit I know, but I can't see a mechanism to do it for 
>> satellite objects in digi_ned. I'll look at blocking its reception on 
>> the i-gate later.
>>
>> Cheers
>> John
>> EI7IG
>
> Do you have any idea what is causing it to show a speed of only 650 
> MPH rather than the 17,000-odd that it really travels?

I can't say why Digi-NED formats it the way it does, but ht epacket 
definitely says 36 degrees and 539 knots.

 From http://aprs.fi/?c=raw&call=EI3RCW-3

2012-03-14 19:17:58 UTC: 
EI3RCW-3>APND13,EI2WCP*,WIDE1*,qAR,EI3RCW-2:;ISS_ 
1303*141917z1247.60S\12241.78ES036/539 AOS at 15-03 06:19 LOC [Location 
changes too fast (>500 km/h)]

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


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